[PATCH 0/2] add device managed version of dev_pm_domain_attach|detach_list()

[PATCH 0/2] add device managed version of dev_pm_domain_attach|detach_list()

[Dikshita Agarwal]

These patches add the devres-enabled version of dev_pm_domain_attach|detach_list
in pm domain framework and use the same APIs in venus driver.
If any client drivers use devm_pm_domain_attach_list() to attach the PM domains,
devm_pm_domain_detach_list() will be invoked implicitly during remove phase.

Dikshita Agarwal (2):
  PM: domains: add device managed version of
    dev_pm_domain_attach|detach_list()
  media: venus: use device managed APIs for power domains

 drivers/base/power/common.c                    | 41 ++++++++++++++++++++++++++
 drivers/media/platform/qcom/venus/pm_helpers.c |  5 +---
 include/linux/pm_domain.h                      |  4 +++
 3 files changed, 46 insertions(+), 4 deletions(-)

-- 
2.7.4

[PATCH 1/2] PM: domains: add device managed version of dev_pm_domain_attach|detach_list()

[Dikshita Agarwal]

This patch adds the devres-enabled version of dev_pm_domain_attach|detach_list.
If client drivers use devm_pm_domain_attach_list() to attach the PM domains,
devm_pm_domain_detach_list() will be invoked implicitly during remove phase.

Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
---
 drivers/base/power/common.c | 41 +++++++++++++++++++++++++++++++++++++++++
 include/linux/pm_domain.h   |  4 ++++
 2 files changed, 45 insertions(+)

diff --git a/drivers/base/power/common.c b/drivers/base/power/common.c
index 327d168..082691e 100644
--- a/drivers/base/power/common.c
+++ b/drivers/base/power/common.c
@@ -277,6 +277,47 @@ int dev_pm_domain_attach_list(struct device *dev,
 EXPORT_SYMBOL_GPL(dev_pm_domain_attach_list);
 
 /**
+ * dev_pm_domain_detach_list - devres-enabled version of dev_pm_domain_detach_list.
+ * @list: The list of PM domains to detach.
+ *
+ * This function reverse the actions from devm_pm_domain_attach_list().
+ * it will be invoked during the remove phase from drivers implicitly if driver
+ * uses devm_pm_domain_attach_list() to attach the PM domains.
+ */
+void devm_pm_domain_detach_list(void *_list)
+{
+	struct dev_pm_domain_list *list = _list;
+
+	dev_pm_domain_detach_list(list);
+}
+EXPORT_SYMBOL_GPL(devm_pm_domain_detach_list);
+
+/**
+ * devm_pm_domain_attach_list - devres-enabled version of dev_pm_domain_attach_list
+ *
+ * NOTE: this will also handle calling devm_pm_domain_detach_list() for
+ * you during remove phase.
+ *
+ * Returns the number of attached PM domains or a negative error code in case of
+ * a failure.
+ */
+int devm_pm_domain_attach_list(struct device *dev,
+			       const struct dev_pm_domain_attach_data *data,
+			       struct dev_pm_domain_list **list)
+{
+	int ret, num_pds = 0;
+
+	num_pds = dev_pm_domain_attach_list(dev, data, list);
+
+	ret = devm_add_action_or_reset(dev, devm_pm_domain_detach_list, (void *)list);
+	if (ret)
+		return ret;
+
+	return num_pds;
+}
+EXPORT_SYMBOL_GPL(devm_pm_domain_attach_list);
+
+/**
  * dev_pm_domain_detach - Detach a device from its PM domain.
  * @dev: Device to detach.
  * @power_off: Used to indicate whether we should power off the device.
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 772d328..2f00150 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -450,8 +450,12 @@ struct device *dev_pm_domain_attach_by_name(struct device *dev,
 int dev_pm_domain_attach_list(struct device *dev,
 			      const struct dev_pm_domain_attach_data *data,
 			      struct dev_pm_domain_list **list);
+int devm_pm_domain_attach_list(struct device *dev,
+			       const struct dev_pm_domain_attach_data *data,
+			       struct dev_pm_domain_list **list);
 void dev_pm_domain_detach(struct device *dev, bool power_off);
 void dev_pm_domain_detach_list(struct dev_pm_domain_list *list);
+void devm_pm_domain_detach_list(void *list);
 int dev_pm_domain_start(struct device *dev);
 void dev_pm_domain_set(struct device *dev, struct dev_pm_domain *pd);
 int dev_pm_domain_set_performance_state(struct device *dev, unsigned int state);
-- 
2.7.4

Re: [PATCH 1/2] PM: domains: add device managed version of dev_pm_domain_attach|detach_list()

[kernel test robot]

Hi Dikshita,

kernel test robot noticed the following build warnings:

[auto build test WARNING on rafael-pm/linux-next]
[also build test WARNING on rafael-pm/bleeding-edge linus/master v6.10-rc7 next-20240712]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Dikshita-Agarwal/PM-domains-add-device-managed-version-of-dev_pm_domain_attach-detach_list/20240712-135151
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
patch link:    https://lore.kernel.org/r/1720763312-13018-2-git-send-email-quic_dikshita%40quicinc.com
patch subject: [PATCH 1/2] PM: domains: add device managed version of dev_pm_domain_attach|detach_list()
config: x86_64-buildonly-randconfig-001-20240713 (https://download.01.org/0day-ci/archive/20240713/202407131034.zV21FEsV-lkp@intel.com/config)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240713/202407131034.zV21FEsV-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202407131034.zV21FEsV-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/base/power/common.c:288: warning: Function parameter or struct member '_list' not described in 'devm_pm_domain_detach_list'
>> drivers/base/power/common.c:288: warning: expecting prototype for dev_pm_domain_detach_list(). Prototype was for devm_pm_domain_detach_list() instead
>> drivers/base/power/common.c:307: warning: Function parameter or struct member 'dev' not described in 'devm_pm_domain_attach_list'
>> drivers/base/power/common.c:307: warning: Function parameter or struct member 'data' not described in 'devm_pm_domain_attach_list'
>> drivers/base/power/common.c:307: warning: Function parameter or struct member 'list' not described in 'devm_pm_domain_attach_list'


vim +288 drivers/base/power/common.c

   278	
   279	/**
   280	 * dev_pm_domain_detach_list - devres-enabled version of dev_pm_domain_detach_list.
   281	 * @list: The list of PM domains to detach.
   282	 *
   283	 * This function reverse the actions from devm_pm_domain_attach_list().
   284	 * it will be invoked during the remove phase from drivers implicitly if driver
   285	 * uses devm_pm_domain_attach_list() to attach the PM domains.
   286	 */
   287	void devm_pm_domain_detach_list(void *_list)
 > 288	{
   289		struct dev_pm_domain_list *list = _list;
   290	
   291		dev_pm_domain_detach_list(list);
   292	}
   293	EXPORT_SYMBOL_GPL(devm_pm_domain_detach_list);
   294	
   295	/**
   296	 * devm_pm_domain_attach_list - devres-enabled version of dev_pm_domain_attach_list
   297	 *
   298	 * NOTE: this will also handle calling devm_pm_domain_detach_list() for
   299	 * you during remove phase.
   300	 *
   301	 * Returns the number of attached PM domains or a negative error code in case of
   302	 * a failure.
   303	 */
   304	int devm_pm_domain_attach_list(struct device *dev,
   305				       const struct dev_pm_domain_attach_data *data,
   306				       struct dev_pm_domain_list **list)
 > 307	{
   308		int ret, num_pds = 0;
   309	
   310		num_pds = dev_pm_domain_attach_list(dev, data, list);
   311	
   312		ret = devm_add_action_or_reset(dev, devm_pm_domain_detach_list, (void *)list);
   313		if (ret)
   314			return ret;
   315	
   316		return num_pds;
   317	}
   318	EXPORT_SYMBOL_GPL(devm_pm_domain_attach_list);
   319	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

Re: [PATCH 1/2] PM: domains: add device managed version of dev_pm_domain_attach|detach_list()

[Bryan O'Donoghue]

On 12/07/2024 06:48, Dikshita Agarwal wrote:
> This patch adds the devres-enabled version of dev_pm_domain_attach|detach_list.
> If client drivers use devm_pm_domain_attach_list() to attach the PM domains,
> devm_pm_domain_detach_list() will be invoked implicitly during remove phase.
> 
> Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
> ---

> +	num_pds = dev_pm_domain_attach_list(dev, data, list);
> +
> +	ret = devm_add_action_or_reset(dev, devm_pm_domain_detach_list, (void *)list);

Fairly sure that cast isn't necessary eg

drivers/input/touchscreen/ili210x.c::ili210x_i2c_probe()
drivers/power/supply/axp288_fuel_gauge.c::axp288_fuel_gauge_probe()

---
bod

Re: [PATCH 1/2] PM: domains: add device managed version of dev_pm_domain_attach|detach_list()

[Pavan Kondeti]

On Fri, Jul 12, 2024 at 11:18:30AM +0530, Dikshita Agarwal wrote:
> This patch adds the devres-enabled version of dev_pm_domain_attach|detach_list.
> If client drivers use devm_pm_domain_attach_list() to attach the PM domains,
> devm_pm_domain_detach_list() will be invoked implicitly during remove phase.
> 
> Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
> ---
>  drivers/base/power/common.c | 41 +++++++++++++++++++++++++++++++++++++++++
>  include/linux/pm_domain.h   |  4 ++++
>  2 files changed, 45 insertions(+)
> 
> diff --git a/drivers/base/power/common.c b/drivers/base/power/common.c
> index 327d168..082691e 100644
> --- a/drivers/base/power/common.c
> +++ b/drivers/base/power/common.c
> @@ -277,6 +277,47 @@ int dev_pm_domain_attach_list(struct device *dev,
>  EXPORT_SYMBOL_GPL(dev_pm_domain_attach_list);
>  
>  /**
> + * dev_pm_domain_detach_list - devres-enabled version of dev_pm_domain_detach_list.
> + * @list: The list of PM domains to detach.
> + *
> + * This function reverse the actions from devm_pm_domain_attach_list().
> + * it will be invoked during the remove phase from drivers implicitly if driver
> + * uses devm_pm_domain_attach_list() to attach the PM domains.
> + */
> +void devm_pm_domain_detach_list(void *_list)
> +{
> +	struct dev_pm_domain_list *list = _list;
> +
> +	dev_pm_domain_detach_list(list);
> +}
> +EXPORT_SYMBOL_GPL(devm_pm_domain_detach_list);
> +
> +/**
> + * devm_pm_domain_attach_list - devres-enabled version of dev_pm_domain_attach_list
> + *
> + * NOTE: this will also handle calling devm_pm_domain_detach_list() for
> + * you during remove phase.
> + *
> + * Returns the number of attached PM domains or a negative error code in case of
> + * a failure.
> + */
> +int devm_pm_domain_attach_list(struct device *dev,
> +			       const struct dev_pm_domain_attach_data *data,
> +			       struct dev_pm_domain_list **list)
> +{
> +	int ret, num_pds = 0;
> +
> +	num_pds = dev_pm_domain_attach_list(dev, data, list);
> +
> +	ret = devm_add_action_or_reset(dev, devm_pm_domain_detach_list, (void *)list);
> +	if (ret)
> +		return ret;
> +
> +	return num_pds;
> +}
> +EXPORT_SYMBOL_GPL(devm_pm_domain_attach_list);
> +
> +/**
>   * dev_pm_domain_detach - Detach a device from its PM domain.
>   * @dev: Device to detach.
>   * @power_off: Used to indicate whether we should power off the device.
> diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
> index 772d328..2f00150 100644
> --- a/include/linux/pm_domain.h
> +++ b/include/linux/pm_domain.h
> @@ -450,8 +450,12 @@ struct device *dev_pm_domain_attach_by_name(struct device *dev,
>  int dev_pm_domain_attach_list(struct device *dev,
>  			      const struct dev_pm_domain_attach_data *data,
>  			      struct dev_pm_domain_list **list);
> +int devm_pm_domain_attach_list(struct device *dev,
> +			       const struct dev_pm_domain_attach_data *data,
> +			       struct dev_pm_domain_list **list);
>  void dev_pm_domain_detach(struct device *dev, bool power_off);
>  void dev_pm_domain_detach_list(struct dev_pm_domain_list *list);
> +void devm_pm_domain_detach_list(void *list);
>  int dev_pm_domain_start(struct device *dev);
>  void dev_pm_domain_set(struct device *dev, struct dev_pm_domain *pd);
>  int dev_pm_domain_set_performance_state(struct device *dev, unsigned int state);

The stub functions for the newly added functions are missing in this
patch. They would be needed for !CONFIG_PM case.

Thanks,
Pavan

[PATCH 2/2] media: venus: use device managed APIs for power domains

[Dikshita Agarwal]

Use devres-enabled version of power domain attach APIs.

Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
---
 drivers/media/platform/qcom/venus/pm_helpers.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index 5028220..86221e0 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -869,7 +869,7 @@ static int vcodec_domains_get(struct venus_core *core)
 	if (!res->vcodec_pmdomains_num)
 		goto skip_pmdomains;
 
-	ret = dev_pm_domain_attach_list(dev, &vcodec_data, &core->pmdomains);
+	ret = devm_pm_domain_attach_list(dev, &vcodec_data, &core->pmdomains);
 	if (ret < 0)
 		return ret;
 
@@ -895,14 +895,11 @@ static int vcodec_domains_get(struct venus_core *core)
 	return 0;
 
 opp_attach_err:
-	dev_pm_domain_detach_list(core->pmdomains);
 	return ret;
 }
 
 static void vcodec_domains_put(struct venus_core *core)
 {
-	dev_pm_domain_detach_list(core->pmdomains);
-
 	if (!core->has_opp_table)
 		return;
 
-- 
2.7.4

Re: [PATCH 2/2] media: venus: use device managed APIs for power domains

[kernel test robot]

Hi Dikshita,

kernel test robot noticed the following build errors:

[auto build test ERROR on rafael-pm/linux-next]
[also build test ERROR on rafael-pm/bleeding-edge media-tree/master linus/master v6.10-rc7 next-20240712]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Dikshita-Agarwal/PM-domains-add-device-managed-version-of-dev_pm_domain_attach-detach_list/20240712-135151
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
patch link:    https://lore.kernel.org/r/1720763312-13018-3-git-send-email-quic_dikshita%40quicinc.com
patch subject: [PATCH 2/2] media: venus: use device managed APIs for power domains
config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20240713/202407131046.zNlz3AxD-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project a0c6b8aef853eedaa0980f07c0a502a5a8a9740e)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240713/202407131046.zNlz3AxD-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202407131046.zNlz3AxD-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from drivers/media/platform/qcom/venus/pm_helpers.c:9:
   In file included from include/linux/iopoll.h:14:
   In file included from include/linux/io.h:14:
   In file included from arch/s390/include/asm/io.h:93:
   include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     548 |         val = __raw_readb(PCI_IOBASE + addr);
         |                           ~~~~~~~~~~ ^
   include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     561 |         val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
         |                                                         ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
      37 | #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
         |                                                           ^
   include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
     102 | #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
         |                                                      ^
   In file included from drivers/media/platform/qcom/venus/pm_helpers.c:9:
   In file included from include/linux/iopoll.h:14:
   In file included from include/linux/io.h:14:
   In file included from arch/s390/include/asm/io.h:93:
   include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     574 |         val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
         |                                                         ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
      35 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
         |                                                           ^
   include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
     115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
         |                                                      ^
   In file included from drivers/media/platform/qcom/venus/pm_helpers.c:9:
   In file included from include/linux/iopoll.h:14:
   In file included from include/linux/io.h:14:
   In file included from arch/s390/include/asm/io.h:93:
   include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     585 |         __raw_writeb(value, PCI_IOBASE + addr);
         |                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     595 |         __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
   include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     605 |         __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
   include/asm-generic/io.h:693:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     693 |         readsb(PCI_IOBASE + addr, buffer, count);
         |                ~~~~~~~~~~ ^
   include/asm-generic/io.h:701:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     701 |         readsw(PCI_IOBASE + addr, buffer, count);
         |                ~~~~~~~~~~ ^
   include/asm-generic/io.h:709:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     709 |         readsl(PCI_IOBASE + addr, buffer, count);
         |                ~~~~~~~~~~ ^
   include/asm-generic/io.h:718:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     718 |         writesb(PCI_IOBASE + addr, buffer, count);
         |                 ~~~~~~~~~~ ^
   include/asm-generic/io.h:727:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     727 |         writesw(PCI_IOBASE + addr, buffer, count);
         |                 ~~~~~~~~~~ ^
   include/asm-generic/io.h:736:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     736 |         writesl(PCI_IOBASE + addr, buffer, count);
         |                 ~~~~~~~~~~ ^
   In file included from drivers/media/platform/qcom/venus/pm_helpers.c:11:
   In file included from include/linux/pm_domain.h:11:
   In file included from include/linux/device.h:32:
   In file included from include/linux/device/driver.h:21:
   In file included from include/linux/module.h:19:
   In file included from include/linux/elf.h:6:
   In file included from arch/s390/include/asm/elf.h:173:
   In file included from arch/s390/include/asm/mmu_context.h:11:
   In file included from arch/s390/include/asm/pgalloc.h:18:
   In file included from include/linux/mm.h:2258:
   include/linux/vmstat.h:500:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     500 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     501 |                            item];
         |                            ~~~~
   include/linux/vmstat.h:507:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     507 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     508 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:514:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     514 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   include/linux/vmstat.h:519:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     519 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     520 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:528:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     528 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     529 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
>> drivers/media/platform/qcom/venus/pm_helpers.c:872:8: error: call to undeclared function 'devm_pm_domain_attach_list'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     872 |         ret = devm_pm_domain_attach_list(dev, &vcodec_data, &core->pmdomains);
         |               ^
   drivers/media/platform/qcom/venus/pm_helpers.c:872:8: note: did you mean 'dev_pm_domain_attach_list'?
   include/linux/pm_domain.h:483:19: note: 'dev_pm_domain_attach_list' declared here
     483 | static inline int dev_pm_domain_attach_list(struct device *dev,
         |                   ^
   17 warnings and 1 error generated.


vim +/devm_pm_domain_attach_list +872 drivers/media/platform/qcom/venus/pm_helpers.c

   856	
   857	static int vcodec_domains_get(struct venus_core *core)
   858	{
   859		int ret;
   860		struct device **opp_virt_dev;
   861		struct device *dev = core->dev;
   862		const struct venus_resources *res = core->res;
   863		struct dev_pm_domain_attach_data vcodec_data = {
   864			.pd_names = res->vcodec_pmdomains,
   865			.num_pd_names = res->vcodec_pmdomains_num,
   866			.pd_flags = PD_FLAG_NO_DEV_LINK,
   867		};
   868	
   869		if (!res->vcodec_pmdomains_num)
   870			goto skip_pmdomains;
   871	
 > 872		ret = devm_pm_domain_attach_list(dev, &vcodec_data, &core->pmdomains);
   873		if (ret < 0)
   874			return ret;
   875	
   876	skip_pmdomains:
   877		if (!core->res->opp_pmdomain)
   878			return 0;
   879	
   880		/* Attach the power domain for setting performance state */
   881		ret = devm_pm_opp_attach_genpd(dev, res->opp_pmdomain, &opp_virt_dev);
   882		if (ret)
   883			goto opp_attach_err;
   884	
   885		core->opp_pmdomain = *opp_virt_dev;
   886		core->opp_dl_venus = device_link_add(dev, core->opp_pmdomain,
   887						     DL_FLAG_RPM_ACTIVE |
   888						     DL_FLAG_PM_RUNTIME |
   889						     DL_FLAG_STATELESS);
   890		if (!core->opp_dl_venus) {
   891			ret = -ENODEV;
   892			goto opp_attach_err;
   893		}
   894	
   895		return 0;
   896	
   897	opp_attach_err:
   898		return ret;
   899	}
   900	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

Re: [PATCH 2/2] media: venus: use device managed APIs for power domains

[Bryan O'Donoghue]

On 12/07/2024 06:48, Dikshita Agarwal wrote:
> Use devres-enabled version of power domain attach APIs.
> 
> Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
> ---
>   drivers/media/platform/qcom/venus/pm_helpers.c | 5 +----
>   1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
> index 5028220..86221e0 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.c
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c
> @@ -869,7 +869,7 @@ static int vcodec_domains_get(struct venus_core *core)
>   	if (!res->vcodec_pmdomains_num)
>   		goto skip_pmdomains;
>   
> -	ret = dev_pm_domain_attach_list(dev, &vcodec_data, &core->pmdomains);
> +	ret = devm_pm_domain_attach_list(dev, &vcodec_data, &core->pmdomains);
>   	if (ret < 0)
>   		return ret;
>   
> @@ -895,14 +895,11 @@ static int vcodec_domains_get(struct venus_core *core)
>   	return 0;
>   
>   opp_attach_err:
> -	dev_pm_domain_detach_list(core->pmdomains);
>   	return ret;
>   }
>   
>   static void vcodec_domains_put(struct venus_core *core)
>   {
> -	dev_pm_domain_detach_list(core->pmdomains);
> -
>   	if (!core->has_opp_table)
>   		return;
>   

Less is more.

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>

[PATCH v2 01/20] media: venus: pm_helpers: Only set rate of the core clock in core_clks_enable

[Dikshita Agarwal]

From: Konrad Dybcio <konrad.dybcio@linaro.org>

Commit c22b1a29497c ("media: venus: core,pm: Vote for min clk freq
during venus boot") intended to up the rate of the Venus core clock
from the XO minimum to something more reasonable, based on the per-
SoC frequency table.

Unfortunately, it ended up calling set_rate with that same argument
on all clocks in res->clks. Fix that using the OPP API.

Fixes: c22b1a29497c ("media: venus: core,pm: Vote for min clk freq during venus boot")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/pm_helpers.c | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index 502822059498..8bd0ce4ce69d 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -41,24 +41,23 @@ static int core_clks_get(struct venus_core *core)
 static int core_clks_enable(struct venus_core *core)
 {
 	const struct venus_resources *res = core->res;
-	const struct freq_tbl *freq_tbl = core->res->freq_tbl;
-	unsigned int freq_tbl_size = core->res->freq_tbl_size;
-	unsigned long freq;
+	struct dev_pm_opp *opp;
+	unsigned long freq = 0;
 	unsigned int i;
 	int ret;
 
-	if (!freq_tbl)
-		return -EINVAL;
+	if (core->has_opp_table) {
+		opp = dev_pm_opp_find_freq_ceil(core->dev, &freq);
+		if (IS_ERR(opp))
+			return PTR_ERR(opp);
+		dev_pm_opp_put(opp);
 
-	freq = freq_tbl[freq_tbl_size - 1].freq;
+		ret = dev_pm_opp_set_rate(core->dev, freq);
+		if (ret)
+			return ret;
+	}
 
 	for (i = 0; i < res->clks_num; i++) {
-		if (IS_V6(core)) {
-			ret = clk_set_rate(core->clks[i], freq);
-			if (ret)
-				goto err;
-		}
-
 		ret = clk_prepare_enable(core->clks[i]);
 		if (ret)
 			goto err;

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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Fri, 09 Feb 2024 22:09:46 +0100
Subject: [PATCH v2 02/20] media: venus: pm_helpers: Rename core_clks_get to
 venus_clks_get
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"core" is used in multiple contexts when talking about Venus, rename
the function to save on confusion.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/pm_helpers.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index 8bd0ce4ce69d..ac7c83404c6e 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -23,7 +23,7 @@
 
 static bool legacy_binding;
 
-static int core_clks_get(struct venus_core *core)
+static int venus_clks_get(struct venus_core *core)
 {
 	const struct venus_resources *res = core->res;
 	struct device *dev = core->dev;
@@ -294,7 +294,7 @@ static int core_get_v1(struct venus_core *core)
 {
 	int ret;
 
-	ret = core_clks_get(core);
+	ret = venus_clks_get(core);
 	if (ret)
 		return ret;
 
@@ -961,7 +961,7 @@ static int core_get_v4(struct venus_core *core)
 	const struct venus_resources *res = core->res;
 	int ret;
 
-	ret = core_clks_get(core);
+	ret = venus_clks_get(core);
 	if (ret)
 		return ret;
 

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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Fri, 09 Feb 2024 22:09:47 +0100
Subject: [PATCH v2 03/20] media: venus: pm_helpers: Add kerneldoc to
 venus_clks_get()
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To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
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To make it easier to understand the various clock requirements within
this driver, add kerneldoc to venus_clk_get() explaining the fluff.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/pm_helpers.c | 28 ++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index ac7c83404c6e..ea0a7d4601e2 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -23,6 +23,34 @@
 
 static bool legacy_binding;
 
+/**
+ * venus_clks_get() - Get Venus clocks that are not bound to a vcodec
+ * @core: A pointer to the venus core resource
+ *
+ * The Venus block (depending on the generation) can be split into a couple
+ * of clock domains: one for "main logic" and one for each video core (0-2pcs).
+ *
+ * MSM8916 (and possibly other HFIv1 users) only feature the "main logic"
+ * domain, so this function is the only kind if clk_get necessary there.
+ *
+ * MSM8996 (and other HFIv3 users) feature two video cores, with core0 being
+ * statically proclaimed a decoder and core1 an encoder, with both having
+ * their own clock domains.
+ *
+ * SDM845 features two video cores, each one of which may or may not be
+ * subdivided into 2 enc/dec threads.
+ *
+ * Other SoCs either feature a single video core (with its own clock domain)
+ * or 1 video core and 1 CVP (Computer Vision Processor) core. In both cases
+ * we treat it the same (CVP only happens to live near-by Venus on the SoC).
+ *
+ * Due to unfortunate developments in the past, we have to support bindings
+ * (MSM8996, SDM660, SDM845) that require specifying the clocks and
+ * power-domains associated with a video core domain in a bogus subnode,
+ * which means that additional fluff is necessary..
+ *
+ * Return: 0 on success, negative errno on failure.
+ */
 static int venus_clks_get(struct venus_core *core)
 {
 	const struct venus_resources *res = core->res;

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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Fri, 09 Feb 2024 22:09:48 +0100
Subject: [PATCH v2 04/20] media: venus: core: Set OPP clkname in a common
 code path
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To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
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Cc: Marijn Suijten <marijn.suijten@somainline.org>,
 Stanimir Varbanov <stanimir.varbanov@linaro.org>,
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Calling devm_pm_opp_set_clkname() is repeated for all HFI versions in
pm_ops->core_power.

Move it to the common codepath.

This also lets us get rid of core_get_v1.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/core.c       |  5 +++++
 drivers/media/platform/qcom/venus/pm_helpers.c | 23 ++---------------------
 2 files changed, 7 insertions(+), 21 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index ce206b709754..5ab3c414ec0f 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -14,6 +14,7 @@
 #include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
+#include <linux/pm_opp.h>
 #include <linux/slab.h>
 #include <linux/types.h>
 #include <linux/pm_domain.h>
@@ -319,6 +320,10 @@ static int venus_probe(struct platform_device *pdev)
 	if (!core->pm_ops)
 		return -ENODEV;
 
+	ret = devm_pm_opp_set_clkname(dev, "core");
+	if (ret)
+		return ret;
+
 	if (core->pm_ops->core_get) {
 		ret = core->pm_ops->core_get(core);
 		if (ret)
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index ea0a7d4601e2..1ba65345a5e2 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -318,21 +318,6 @@ static int load_scale_v1(struct venus_inst *inst)
 	return ret;
 }
 
-static int core_get_v1(struct venus_core *core)
-{
-	int ret;
-
-	ret = venus_clks_get(core);
-	if (ret)
-		return ret;
-
-	ret = devm_pm_opp_set_clkname(core->dev, "core");
-	if (ret)
-		return ret;
-
-	return 0;
-}
-
 static void core_put_v1(struct venus_core *core)
 {
 }
@@ -350,7 +335,7 @@ static int core_power_v1(struct venus_core *core, int on)
 }
 
 static const struct venus_pm_ops pm_ops_v1 = {
-	.core_get = core_get_v1,
+	.core_get = venus_clks_get,
 	.core_put = core_put_v1,
 	.core_power = core_power_v1,
 	.load_scale = load_scale_v1,
@@ -423,7 +408,7 @@ static int venc_power_v3(struct device *dev, int on)
 }
 
 static const struct venus_pm_ops pm_ops_v3 = {
-	.core_get = core_get_v1,
+	.core_get = venus_clks_get,
 	.core_put = core_put_v1,
 	.core_power = core_power_v1,
 	.vdec_get = vdec_get_v3,
@@ -1013,10 +998,6 @@ static int core_get_v4(struct venus_core *core)
 	if (legacy_binding)
 		return 0;
 
-	ret = devm_pm_opp_set_clkname(dev, "core");
-	if (ret)
-		return ret;
-
 	ret = vcodec_domains_get(core);
 	if (ret)
 		return ret;

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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Fri, 09 Feb 2024 22:09:49 +0100
Subject: [PATCH v2 05/20] media: venus: pm_helpers: Kill dead code
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In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
 Vikash Garodia <quic_vgarodia@quicinc.com>,
 Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
 Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
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 Dikshita Agarwal <quic_dikshita@quicinc.com>,
 Philipp Zabel <p.zabel@pengutronix.de>
Cc: Marijn Suijten <marijn.suijten@somainline.org>,
 Stanimir Varbanov <stanimir.varbanov@linaro.org>,
 Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
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A situation like:

if (!foo)
	goto bar;

for (i = 0; i < foo; i++)
	...1...

bar:
	...2...

is totally identical to:

for (i = 0; i < 0; i++) // === if (0)
	...1...

...2...

Get rid of such boilerplate.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/pm_helpers.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index 1ba65345a5e2..7193075e8c04 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -878,14 +878,10 @@ static int vcodec_domains_get(struct venus_core *core)
 		.pd_flags = PD_FLAG_NO_DEV_LINK,
 	};
 
-	if (!res->vcodec_pmdomains_num)
-		goto skip_pmdomains;
-
 	ret = dev_pm_domain_attach_list(dev, &vcodec_data, &core->pmdomains);
 	if (ret < 0)
 		return ret;
 
-skip_pmdomains:
 	if (!core->res->opp_pmdomain)
 		return 0;
 
@@ -928,9 +924,6 @@ static int core_resets_reset(struct venus_core *core)
 	unsigned int i;
 	int ret;
 
-	if (!res->resets_num)
-		return 0;
-
 	for (i = 0; i < res->resets_num; i++) {
 		ret = reset_control_assert(core->resets[i]);
 		if (ret)
@@ -953,9 +946,6 @@ static int core_resets_get(struct venus_core *core)
 	unsigned int i;
 	int ret;
 
-	if (!res->resets_num)
-		return 0;
-
 	for (i = 0; i < res->resets_num; i++) {
 		core->resets[i] =
 			devm_reset_control_get_exclusive(dev, res->resets[i]);

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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Fri, 09 Feb 2024 22:09:50 +0100
Subject: [PATCH v2 06/20] media: venus: pm_helpers: Move reset acquisition
 to common code
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In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
 Vikash Garodia <quic_vgarodia@quicinc.com>,
 Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
 Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
 Mauro Carvalho Chehab <mchehab@kernel.org>,
 Dikshita Agarwal <quic_dikshita@quicinc.com>,
 Philipp Zabel <p.zabel@pengutronix.de>
Cc: Marijn Suijten <marijn.suijten@somainline.org>,
 Stanimir Varbanov <stanimir.varbanov@linaro.org>,
 Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
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 linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
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There is no reason to keep reset_get code local to HFIv4/v6.

Move it to the common part.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/core.c       |  9 ++++++++-
 drivers/media/platform/qcom/venus/pm_helpers.c | 23 -----------------------
 2 files changed, 8 insertions(+), 24 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 5ab3c414ec0f..0652065cb113 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -15,6 +15,7 @@
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/pm_opp.h>
+#include <linux/reset.h>
 #include <linux/slab.h>
 #include <linux/types.h>
 #include <linux/pm_domain.h>
@@ -286,7 +287,7 @@ static int venus_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct venus_core *core;
-	int ret;
+	int i, ret;
 
 	core = devm_kzalloc(dev, sizeof(*core), GFP_KERNEL);
 	if (!core)
@@ -324,6 +325,12 @@ static int venus_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
+	for (i = 0; i < core->res->resets_num; i++) {
+		core->resets[i] = devm_reset_control_get_exclusive(dev, core->res->resets[i]);
+		if (IS_ERR(core->resets[i]))
+			return PTR_ERR(core->resets[i]);
+	}
+
 	if (core->pm_ops->core_get) {
 		ret = core->pm_ops->core_get(core);
 		if (ret)
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index 7193075e8c04..6017a9236bff 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -939,25 +939,6 @@ static int core_resets_reset(struct venus_core *core)
 	return ret;
 }
 
-static int core_resets_get(struct venus_core *core)
-{
-	struct device *dev = core->dev;
-	const struct venus_resources *res = core->res;
-	unsigned int i;
-	int ret;
-
-	for (i = 0; i < res->resets_num; i++) {
-		core->resets[i] =
-			devm_reset_control_get_exclusive(dev, res->resets[i]);
-		if (IS_ERR(core->resets[i])) {
-			ret = PTR_ERR(core->resets[i]);
-			return ret;
-		}
-	}
-
-	return 0;
-}
-
 static int core_get_v4(struct venus_core *core)
 {
 	struct device *dev = core->dev;
@@ -981,10 +962,6 @@ static int core_get_v4(struct venus_core *core)
 	if (ret)
 		return ret;
 
-	ret = core_resets_get(core);
-	if (ret)
-		return ret;
-
 	if (legacy_binding)
 		return 0;
 

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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Fri, 09 Feb 2024 22:09:51 +0100
Subject: [PATCH v2 07/20] media: venus: core: Constify all members of the
 resource struct
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To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
 Vikash Garodia <quic_vgarodia@quicinc.com>,
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Cc: Marijn Suijten <marijn.suijten@somainline.org>,
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 Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
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Nothing inside the resource struct needs to be mutable. Sprinkle
'const' all over it. A lot of 'const'.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/core.h | 58 ++++++++++++++++----------------
 1 file changed, 29 insertions(+), 29 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
index 6a77de374454..6b1887f7d9cb 100644
--- a/drivers/media/platform/qcom/venus/core.h
+++ b/drivers/media/platform/qcom/venus/core.h
@@ -56,39 +56,39 @@ enum vpu_version {
 };
 
 struct venus_resources {
-	u64 dma_mask;
-	const struct freq_tbl *freq_tbl;
-	unsigned int freq_tbl_size;
-	const struct bw_tbl *bw_tbl_enc;
-	unsigned int bw_tbl_enc_size;
-	const struct bw_tbl *bw_tbl_dec;
-	unsigned int bw_tbl_dec_size;
-	const struct reg_val *reg_tbl;
-	unsigned int reg_tbl_size;
-	const struct hfi_ubwc_config *ubwc_conf;
+	const u64 dma_mask;
+	const struct freq_tbl * const freq_tbl;
+	const unsigned int freq_tbl_size;
+	const struct bw_tbl * const bw_tbl_enc;
+	const unsigned int bw_tbl_enc_size;
+	const struct bw_tbl * const bw_tbl_dec;
+	const unsigned int bw_tbl_dec_size;
+	const struct reg_val * const reg_tbl;
+	const unsigned int reg_tbl_size;
+	const struct hfi_ubwc_config * const ubwc_conf;
 	const char * const clks[VIDC_CLKS_NUM_MAX];
-	unsigned int clks_num;
+	const unsigned int clks_num;
 	const char * const vcodec0_clks[VIDC_VCODEC_CLKS_NUM_MAX];
 	const char * const vcodec1_clks[VIDC_VCODEC_CLKS_NUM_MAX];
-	unsigned int vcodec_clks_num;
-	const char **vcodec_pmdomains;
-	unsigned int vcodec_pmdomains_num;
-	const char **opp_pmdomain;
-	unsigned int vcodec_num;
+	const unsigned int vcodec_clks_num;
+	const char * const *vcodec_pmdomains;
+	const unsigned int vcodec_pmdomains_num;
+	const char * const * const opp_pmdomain;
+	const unsigned int vcodec_num;
 	const char * const resets[VIDC_RESETS_NUM_MAX];
-	unsigned int resets_num;
-	enum hfi_version hfi_version;
-	enum vpu_version vpu_version;
-	u8 num_vpp_pipes;
-	u32 max_load;
-	unsigned int vmem_id;
-	u32 vmem_size;
-	u32 vmem_addr;
-	u32 cp_start;
-	u32 cp_size;
-	u32 cp_nonpixel_start;
-	u32 cp_nonpixel_size;
-	const char *fwname;
+	const unsigned int resets_num;
+	const enum hfi_version hfi_version;
+	const enum vpu_version vpu_version;
+	const u8 num_vpp_pipes;
+	const u32 max_load;
+	const unsigned int vmem_id;
+	const u32 vmem_size;
+	const u32 vmem_addr;
+	const u32 cp_start;
+	const u32 cp_size;
+	const u32 cp_nonpixel_start;
+	const u32 cp_nonpixel_size;
+	const char * const fwname;
 };
 
 enum venus_fmt {

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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Fri, 09 Feb 2024 22:09:52 +0100
Subject: [PATCH v2 08/20] media: venus: core: Deduplicate OPP genpd names
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To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
 Vikash Garodia <quic_vgarodia@quicinc.com>,
 Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
 Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
 Mauro Carvalho Chehab <mchehab@kernel.org>,
 Dikshita Agarwal <quic_dikshita@quicinc.com>,
 Philipp Zabel <p.zabel@pengutronix.de>
Cc: Marijn Suijten <marijn.suijten@somainline.org>,
 Stanimir Varbanov <stanimir.varbanov@linaro.org>,
 Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
 linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
 linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
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Instead of redefining the same literals over and over again, define
them once and point the reference to that definition.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/core.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 0652065cb113..83ac68f1566f 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -538,6 +538,9 @@ static const struct dev_pm_ops venus_pm_ops = {
 	SET_RUNTIME_PM_OPS(venus_runtime_suspend, venus_runtime_resume, NULL)
 };
 
+static const char * const pd_names_cx[] = { "cx", NULL };
+static const char * const pd_names_mx[] = { "mx", NULL };
+
 static const struct freq_tbl msm8916_freq_table[] = {
 	{ 352800, 228570000 },	/* 1920x1088 @ 30 + 1280x720 @ 30 */
 	{ 244800, 160000000 },	/* 1920x1088 @ 30 */
@@ -721,7 +724,7 @@ static const struct venus_resources sdm845_res_v2 = {
 	.vcodec_clks_num = 2,
 	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0", "vcodec1" },
 	.vcodec_pmdomains_num = 3,
-	.opp_pmdomain = (const char *[]) { "cx", NULL },
+	.opp_pmdomain = pd_names_cx,
 	.vcodec_num = 2,
 	.max_load = 3110400,	/* 4096x2160@90 */
 	.hfi_version = HFI_VERSION_4XX,
@@ -770,7 +773,7 @@ static const struct venus_resources sc7180_res = {
 	.vcodec_clks_num = 2,
 	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
 	.vcodec_pmdomains_num = 2,
-	.opp_pmdomain = (const char *[]) { "cx", NULL },
+	.opp_pmdomain = pd_names_cx,
 	.vcodec_num = 1,
 	.hfi_version = HFI_VERSION_4XX,
 	.vpu_version = VPU_VERSION_AR50,
@@ -827,7 +830,7 @@ static const struct venus_resources sm8250_res = {
 	.vcodec_clks_num = 1,
 	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
 	.vcodec_pmdomains_num = 2,
-	.opp_pmdomain = (const char *[]) { "mx", NULL },
+	.opp_pmdomain = pd_names_mx,
 	.vcodec_num = 1,
 	.max_load = 7833600,
 	.hfi_version = HFI_VERSION_6XX,
@@ -886,7 +889,7 @@ static const struct venus_resources sc7280_res = {
 	.vcodec_clks_num = 2,
 	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
 	.vcodec_pmdomains_num = 2,
-	.opp_pmdomain = (const char *[]) { "cx", NULL },
+	.opp_pmdomain = pd_names_cx,
 	.vcodec_num = 1,
 	.hfi_version = HFI_VERSION_6XX,
 	.vpu_version = VPU_VERSION_IRIS2_1,

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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Fri, 09 Feb 2024 22:09:53 +0100
Subject: [PATCH v2 09/20] media: venus: core: Get rid of vcodec_num
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In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
 Vikash Garodia <quic_vgarodia@quicinc.com>,
 Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
 Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
 Mauro Carvalho Chehab <mchehab@kernel.org>,
 Dikshita Agarwal <quic_dikshita@quicinc.com>,
 Philipp Zabel <p.zabel@pengutronix.de>
Cc: Marijn Suijten <marijn.suijten@somainline.org>,
 Stanimir Varbanov <stanimir.varbanov@linaro.org>,
 Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
 linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
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That field was only introduced to differentiate between the legacy and
non-legacy SDM845 binding. Get rid of it.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/core.c       | 5 -----
 drivers/media/platform/qcom/venus/core.h       | 1 -
 drivers/media/platform/qcom/venus/pm_helpers.c | 2 +-
 3 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 83ac68f1566f..1307aa9cf951 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -651,7 +651,6 @@ static const struct venus_resources sdm660_res = {
 	.vcodec0_clks = { "vcodec0_core" },
 	.vcodec1_clks = { "vcodec0_core" },
 	.vcodec_clks_num = 1,
-	.vcodec_num = 1,
 	.max_load = 1036800,
 	.hfi_version = HFI_VERSION_3XX,
 	.vmem_id = VIDC_RESOURCE_NONE,
@@ -725,7 +724,6 @@ static const struct venus_resources sdm845_res_v2 = {
 	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0", "vcodec1" },
 	.vcodec_pmdomains_num = 3,
 	.opp_pmdomain = pd_names_cx,
-	.vcodec_num = 2,
 	.max_load = 3110400,	/* 4096x2160@90 */
 	.hfi_version = HFI_VERSION_4XX,
 	.vpu_version = VPU_VERSION_AR50,
@@ -774,7 +772,6 @@ static const struct venus_resources sc7180_res = {
 	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
 	.vcodec_pmdomains_num = 2,
 	.opp_pmdomain = pd_names_cx,
-	.vcodec_num = 1,
 	.hfi_version = HFI_VERSION_4XX,
 	.vpu_version = VPU_VERSION_AR50,
 	.vmem_id = VIDC_RESOURCE_NONE,
@@ -831,7 +828,6 @@ static const struct venus_resources sm8250_res = {
 	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
 	.vcodec_pmdomains_num = 2,
 	.opp_pmdomain = pd_names_mx,
-	.vcodec_num = 1,
 	.max_load = 7833600,
 	.hfi_version = HFI_VERSION_6XX,
 	.vpu_version = VPU_VERSION_IRIS2,
@@ -890,7 +886,6 @@ static const struct venus_resources sc7280_res = {
 	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
 	.vcodec_pmdomains_num = 2,
 	.opp_pmdomain = pd_names_cx,
-	.vcodec_num = 1,
 	.hfi_version = HFI_VERSION_6XX,
 	.vpu_version = VPU_VERSION_IRIS2_1,
 	.num_vpp_pipes = 1,
diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
index 6b1887f7d9cb..22f998637618 100644
--- a/drivers/media/platform/qcom/venus/core.h
+++ b/drivers/media/platform/qcom/venus/core.h
@@ -74,7 +74,6 @@ struct venus_resources {
 	const char * const *vcodec_pmdomains;
 	const unsigned int vcodec_pmdomains_num;
 	const char * const * const opp_pmdomain;
-	const unsigned int vcodec_num;
 	const char * const resets[VIDC_RESETS_NUM_MAX];
 	const unsigned int resets_num;
 	const enum hfi_version hfi_version;
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index 6017a9236bff..8412deb68ed1 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -622,7 +622,7 @@ min_loaded_core(struct venus_inst *inst, u32 *min_coreid, u32 *min_load, bool lo
 			VIDC_CORE_ID_1 : VIDC_CORE_ID_2;
 	*min_load = min(core1_load, core2_load);
 
-	if (cores_max < VIDC_CORE_ID_2 || core->res->vcodec_num < 2) {
+	if (cores_max < VIDC_CORE_ID_2 || legacy_binding) {
 		*min_coreid = VIDC_CORE_ID_1;
 		*min_load = core1_load;
 	}

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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Fri, 09 Feb 2024 22:09:54 +0100
Subject: [PATCH v2 10/20] media: venus: core: Drop cache properties in
 resource struct
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To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
 Vikash Garodia <quic_vgarodia@quicinc.com>,
 Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
 Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
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Cc: Marijn Suijten <marijn.suijten@somainline.org>,
 Stanimir Varbanov <stanimir.varbanov@linaro.org>,
 Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
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Currently VMEM/OCMEM/LLCC is disabled on all platforms.

Make it unconditional to save on space.

These caches will not be enabled until the Venus driver can reference
them as chunks of SRAM (they're modelled as separate devices) to avoid
hardcoding magic addresses and rougely accessing the hardware,
bypassing the normal accessors.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/core.c      | 24 ------------------------
 drivers/media/platform/qcom/venus/core.h      |  3 ---
 drivers/media/platform/qcom/venus/hfi_venus.c | 10 ++++------
 3 files changed, 4 insertions(+), 33 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 1307aa9cf951..43105e765c53 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -562,9 +562,6 @@ static const struct venus_resources msm8916_res = {
 	.clks_num = 3,
 	.max_load = 352800, /* 720p@30 + 1080p@30 */
 	.hfi_version = HFI_VERSION_1XX,
-	.vmem_id = VIDC_RESOURCE_NONE,
-	.vmem_size = 0,
-	.vmem_addr = 0,
 	.dma_mask = 0xddc00000 - 1,
 	.fwname = "qcom/venus-1.8/venus.mbn",
 };
@@ -595,9 +592,6 @@ static const struct venus_resources msm8996_res = {
 	.vcodec_clks_num = 1,
 	.max_load = 2563200,
 	.hfi_version = HFI_VERSION_3XX,
-	.vmem_id = VIDC_RESOURCE_NONE,
-	.vmem_size = 0,
-	.vmem_addr = 0,
 	.dma_mask = 0xddc00000 - 1,
 	.fwname = "qcom/venus-4.2/venus.mbn",
 };
@@ -653,9 +647,6 @@ static const struct venus_resources sdm660_res = {
 	.vcodec_clks_num = 1,
 	.max_load = 1036800,
 	.hfi_version = HFI_VERSION_3XX,
-	.vmem_id = VIDC_RESOURCE_NONE,
-	.vmem_size = 0,
-	.vmem_addr = 0,
 	.cp_start = 0,
 	.cp_size = 0x79000000,
 	.cp_nonpixel_start = 0x1000000,
@@ -702,9 +693,6 @@ static const struct venus_resources sdm845_res = {
 	.max_load = 3110400,	/* 4096x2160@90 */
 	.hfi_version = HFI_VERSION_4XX,
 	.vpu_version = VPU_VERSION_AR50,
-	.vmem_id = VIDC_RESOURCE_NONE,
-	.vmem_size = 0,
-	.vmem_addr = 0,
 	.dma_mask = 0xe0000000 - 1,
 	.fwname = "qcom/venus-5.2/venus.mbn",
 };
@@ -727,9 +715,6 @@ static const struct venus_resources sdm845_res_v2 = {
 	.max_load = 3110400,	/* 4096x2160@90 */
 	.hfi_version = HFI_VERSION_4XX,
 	.vpu_version = VPU_VERSION_AR50,
-	.vmem_id = VIDC_RESOURCE_NONE,
-	.vmem_size = 0,
-	.vmem_addr = 0,
 	.dma_mask = 0xe0000000 - 1,
 	.cp_start = 0,
 	.cp_size = 0x70800000,
@@ -774,9 +759,6 @@ static const struct venus_resources sc7180_res = {
 	.opp_pmdomain = pd_names_cx,
 	.hfi_version = HFI_VERSION_4XX,
 	.vpu_version = VPU_VERSION_AR50,
-	.vmem_id = VIDC_RESOURCE_NONE,
-	.vmem_size = 0,
-	.vmem_addr = 0,
 	.dma_mask = 0xe0000000 - 1,
 	.cp_start = 0,
 	.cp_size = 0x70800000,
@@ -832,9 +814,6 @@ static const struct venus_resources sm8250_res = {
 	.hfi_version = HFI_VERSION_6XX,
 	.vpu_version = VPU_VERSION_IRIS2,
 	.num_vpp_pipes = 4,
-	.vmem_id = VIDC_RESOURCE_NONE,
-	.vmem_size = 0,
-	.vmem_addr = 0,
 	.dma_mask = 0xe0000000 - 1,
 	.fwname = "qcom/vpu-1.0/venus.mbn",
 };
@@ -889,9 +868,6 @@ static const struct venus_resources sc7280_res = {
 	.hfi_version = HFI_VERSION_6XX,
 	.vpu_version = VPU_VERSION_IRIS2_1,
 	.num_vpp_pipes = 1,
-	.vmem_id = VIDC_RESOURCE_NONE,
-	.vmem_size = 0,
-	.vmem_addr = 0,
 	.dma_mask = 0xe0000000 - 1,
 	.cp_start = 0,
 	.cp_size = 0x25800000,
diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
index 22f998637618..b1d0687d294f 100644
--- a/drivers/media/platform/qcom/venus/core.h
+++ b/drivers/media/platform/qcom/venus/core.h
@@ -80,9 +80,6 @@ struct venus_resources {
 	const enum vpu_version vpu_version;
 	const u8 num_vpp_pipes;
 	const u32 max_load;
-	const unsigned int vmem_id;
-	const u32 vmem_size;
-	const u32 vmem_addr;
 	const u32 cp_start;
 	const u32 cp_size;
 	const u32 cp_nonpixel_start;
diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c
index f9437b6412b9..42ff96f71235 100644
--- a/drivers/media/platform/qcom/venus/hfi_venus.c
+++ b/drivers/media/platform/qcom/venus/hfi_venus.c
@@ -1067,17 +1067,14 @@ static void venus_process_msg_sys_error(struct venus_hfi_device *hdev,
 static irqreturn_t venus_isr_thread(struct venus_core *core)
 {
 	struct venus_hfi_device *hdev = to_hfi_priv(core);
-	const struct venus_resources *res;
 	void *pkt;
 	u32 msg_ret;
 
 	if (!hdev)
 		return IRQ_NONE;
 
-	res = hdev->core->res;
 	pkt = hdev->pkt_buf;
 
-
 	while (!venus_iface_msgq_read(hdev, pkt)) {
 		msg_ret = hfi_process_msg_packet(core, pkt);
 		switch (msg_ret) {
@@ -1085,9 +1082,10 @@ static irqreturn_t venus_isr_thread(struct venus_core *core)
 			venus_process_msg_sys_error(hdev, pkt);
 			break;
 		case HFI_MSG_SYS_INIT:
-			venus_hfi_core_set_resource(core, res->vmem_id,
-						    res->vmem_size,
-						    res->vmem_addr,
+			/* Disable OCMEM/VMEM unconditionally until support is added */
+			venus_hfi_core_set_resource(core, VIDC_RESOURCE_NONE,
+						    0,
+						    0,
 						    hdev);
 			break;
 		case HFI_MSG_SYS_RELEASE_RESOURCE:

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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Fri, 09 Feb 2024 22:09:55 +0100
Subject: [PATCH v2 11/20] media: venus: core: Use GENMASK for dma_mask
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 Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
 Mauro Carvalho Chehab <mchehab@kernel.org>,
 Dikshita Agarwal <quic_dikshita@quicinc.com>,
 Philipp Zabel <p.zabel@pengutronix.de>
Cc: Marijn Suijten <marijn.suijten@somainline.org>,
 Stanimir Varbanov <stanimir.varbanov@linaro.org>,
 Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
 linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
 linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
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The raw literals mean very little. Substitute it with more telling
bitops macros.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/core.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 43105e765c53..06b78e98cebd 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -562,7 +562,7 @@ static const struct venus_resources msm8916_res = {
 	.clks_num = 3,
 	.max_load = 352800, /* 720p@30 + 1080p@30 */
 	.hfi_version = HFI_VERSION_1XX,
-	.dma_mask = 0xddc00000 - 1,
+	.dma_mask = (GENMASK(31, 30) | GENMASK(28, 26) | GENMASK(24, 22)) - 1,
 	.fwname = "qcom/venus-1.8/venus.mbn",
 };
 
@@ -592,7 +592,7 @@ static const struct venus_resources msm8996_res = {
 	.vcodec_clks_num = 1,
 	.max_load = 2563200,
 	.hfi_version = HFI_VERSION_3XX,
-	.dma_mask = 0xddc00000 - 1,
+	.dma_mask = (GENMASK(31, 30) | GENMASK(28, 26) | GENMASK(24, 22)) - 1,
 	.fwname = "qcom/venus-4.2/venus.mbn",
 };
 
@@ -693,7 +693,7 @@ static const struct venus_resources sdm845_res = {
 	.max_load = 3110400,	/* 4096x2160@90 */
 	.hfi_version = HFI_VERSION_4XX,
 	.vpu_version = VPU_VERSION_AR50,
-	.dma_mask = 0xe0000000 - 1,
+	.dma_mask = GENMASK(31, 29) - 1,
 	.fwname = "qcom/venus-5.2/venus.mbn",
 };
 
@@ -715,7 +715,7 @@ static const struct venus_resources sdm845_res_v2 = {
 	.max_load = 3110400,	/* 4096x2160@90 */
 	.hfi_version = HFI_VERSION_4XX,
 	.vpu_version = VPU_VERSION_AR50,
-	.dma_mask = 0xe0000000 - 1,
+	.dma_mask = GENMASK(31, 29) - 1,
 	.cp_start = 0,
 	.cp_size = 0x70800000,
 	.cp_nonpixel_start = 0x1000000,
@@ -759,7 +759,7 @@ static const struct venus_resources sc7180_res = {
 	.opp_pmdomain = pd_names_cx,
 	.hfi_version = HFI_VERSION_4XX,
 	.vpu_version = VPU_VERSION_AR50,
-	.dma_mask = 0xe0000000 - 1,
+	.dma_mask = GENMASK(31, 29) - 1,
 	.cp_start = 0,
 	.cp_size = 0x70800000,
 	.cp_nonpixel_start = 0x1000000,
@@ -814,7 +814,7 @@ static const struct venus_resources sm8250_res = {
 	.hfi_version = HFI_VERSION_6XX,
 	.vpu_version = VPU_VERSION_IRIS2,
 	.num_vpp_pipes = 4,
-	.dma_mask = 0xe0000000 - 1,
+	.dma_mask = GENMASK(31, 29) - 1,
 	.fwname = "qcom/vpu-1.0/venus.mbn",
 };
 
@@ -868,7 +868,7 @@ static const struct venus_resources sc7280_res = {
 	.hfi_version = HFI_VERSION_6XX,
 	.vpu_version = VPU_VERSION_IRIS2_1,
 	.num_vpp_pipes = 1,
-	.dma_mask = 0xe0000000 - 1,
+	.dma_mask = GENMASK(31, 29) - 1,
 	.cp_start = 0,
 	.cp_size = 0x25800000,
 	.cp_nonpixel_start = 0x1000000,

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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Fri, 09 Feb 2024 22:09:56 +0100
Subject: [PATCH v2 12/20] media: venus: core: Remove cp_start
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To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
 Vikash Garodia <quic_vgarodia@quicinc.com>,
 Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
 Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
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 Dikshita Agarwal <quic_dikshita@quicinc.com>,
 Philipp Zabel <p.zabel@pengutronix.de>
Cc: Marijn Suijten <marijn.suijten@somainline.org>,
 Stanimir Varbanov <stanimir.varbanov@linaro.org>,
 Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
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It's hardcoded to be zero. Always. Ever since msm-3.10. Or maybe
even before. Remove it!

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/core.c     | 4 ----
 drivers/media/platform/qcom/venus/core.h     | 1 -
 drivers/media/platform/qcom/venus/firmware.c | 3 +--
 3 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 06b78e98cebd..65a9e815e6ba 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -647,7 +647,6 @@ static const struct venus_resources sdm660_res = {
 	.vcodec_clks_num = 1,
 	.max_load = 1036800,
 	.hfi_version = HFI_VERSION_3XX,
-	.cp_start = 0,
 	.cp_size = 0x79000000,
 	.cp_nonpixel_start = 0x1000000,
 	.cp_nonpixel_size = 0x28000000,
@@ -716,7 +715,6 @@ static const struct venus_resources sdm845_res_v2 = {
 	.hfi_version = HFI_VERSION_4XX,
 	.vpu_version = VPU_VERSION_AR50,
 	.dma_mask = GENMASK(31, 29) - 1,
-	.cp_start = 0,
 	.cp_size = 0x70800000,
 	.cp_nonpixel_start = 0x1000000,
 	.cp_nonpixel_size = 0x24800000,
@@ -760,7 +758,6 @@ static const struct venus_resources sc7180_res = {
 	.hfi_version = HFI_VERSION_4XX,
 	.vpu_version = VPU_VERSION_AR50,
 	.dma_mask = GENMASK(31, 29) - 1,
-	.cp_start = 0,
 	.cp_size = 0x70800000,
 	.cp_nonpixel_start = 0x1000000,
 	.cp_nonpixel_size = 0x24800000,
@@ -869,7 +866,6 @@ static const struct venus_resources sc7280_res = {
 	.vpu_version = VPU_VERSION_IRIS2_1,
 	.num_vpp_pipes = 1,
 	.dma_mask = GENMASK(31, 29) - 1,
-	.cp_start = 0,
 	.cp_size = 0x25800000,
 	.cp_nonpixel_start = 0x1000000,
 	.cp_nonpixel_size = 0x24800000,
diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
index b1d0687d294f..9dacf533c7ad 100644
--- a/drivers/media/platform/qcom/venus/core.h
+++ b/drivers/media/platform/qcom/venus/core.h
@@ -80,7 +80,6 @@ struct venus_resources {
 	const enum vpu_version vpu_version;
 	const u8 num_vpp_pipes;
 	const u32 max_load;
-	const u32 cp_start;
 	const u32 cp_size;
 	const u32 cp_nonpixel_start;
 	const u32 cp_nonpixel_size;
diff --git a/drivers/media/platform/qcom/venus/firmware.c b/drivers/media/platform/qcom/venus/firmware.c
index fe7da2b30482..16e578780be7 100644
--- a/drivers/media/platform/qcom/venus/firmware.c
+++ b/drivers/media/platform/qcom/venus/firmware.c
@@ -245,7 +245,6 @@ int venus_boot(struct venus_core *core)
 	if (core->use_tz && res->cp_size) {
 		/*
 		 * Clues for porting using downstream data:
-		 * cp_start = 0
 		 * cp_size = venus_ns/virtual-addr-pool[0] - yes, address and not size!
 		 *   This works, as the non-secure context bank is placed
 		 *   contiguously right after the Content Protection region.
@@ -253,7 +252,7 @@ int venus_boot(struct venus_core *core)
 		 * cp_nonpixel_start = venus_sec_non_pixel/virtual-addr-pool[0]
 		 * cp_nonpixel_size = venus_sec_non_pixel/virtual-addr-pool[1]
 		 */
-		ret = qcom_scm_mem_protect_video_var(res->cp_start,
+		ret = qcom_scm_mem_protect_video_var(0,
 						     res->cp_size,
 						     res->cp_nonpixel_start,
 						     res->cp_nonpixel_size);

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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Fri, 09 Feb 2024 22:09:57 +0100
Subject: [PATCH v2 13/20] media: venus: pm_helpers: Commonize core_power
Precedence: bulk
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To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
 Vikash Garodia <quic_vgarodia@quicinc.com>,
 Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
 Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
 Mauro Carvalho Chehab <mchehab@kernel.org>,
 Dikshita Agarwal <quic_dikshita@quicinc.com>,
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Cc: Marijn Suijten <marijn.suijten@somainline.org>,
 Stanimir Varbanov <stanimir.varbanov@linaro.org>,
 Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
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core_power_v4 called with num_resets = 0 and core->pmdomains[0] == NULL
does exactly the same thing as core_power_v1. Unify them!

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/core.c       | 21 +++++++--------------
 drivers/media/platform/qcom/venus/pm_helpers.c | 17 +----------------
 drivers/media/platform/qcom/venus/pm_helpers.h |  2 +-
 3 files changed, 9 insertions(+), 31 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 65a9e815e6ba..9bfd2a30084b 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -477,18 +477,15 @@ static void venus_core_shutdown(struct platform_device *pdev)
 static __maybe_unused int venus_runtime_suspend(struct device *dev)
 {
 	struct venus_core *core = dev_get_drvdata(dev);
-	const struct venus_pm_ops *pm_ops = core->pm_ops;
 	int ret;
 
 	ret = hfi_core_suspend(core);
 	if (ret)
 		return ret;
 
-	if (pm_ops->core_power) {
-		ret = pm_ops->core_power(core, POWER_OFF);
-		if (ret)
-			return ret;
-	}
+	ret = venus_core_power(core, POWER_OFF);
+	if (ret)
+		return ret;
 
 	ret = icc_set_bw(core->cpucfg_path, 0, 0);
 	if (ret)
@@ -503,8 +500,7 @@ static __maybe_unused int venus_runtime_suspend(struct device *dev)
 err_video_path:
 	icc_set_bw(core->cpucfg_path, kbps_to_icc(1000), 0);
 err_cpucfg_path:
-	if (pm_ops->core_power)
-		pm_ops->core_power(core, POWER_ON);
+	venus_core_power(core, POWER_ON);
 
 	return ret;
 }
@@ -512,7 +508,6 @@ static __maybe_unused int venus_runtime_suspend(struct device *dev)
 static __maybe_unused int venus_runtime_resume(struct device *dev)
 {
 	struct venus_core *core = dev_get_drvdata(dev);
-	const struct venus_pm_ops *pm_ops = core->pm_ops;
 	int ret;
 
 	ret = icc_set_bw(core->video_path, kbps_to_icc(20000), 0);
@@ -523,11 +518,9 @@ static __maybe_unused int venus_runtime_resume(struct device *dev)
 	if (ret)
 		return ret;
 
-	if (pm_ops->core_power) {
-		ret = pm_ops->core_power(core, POWER_ON);
-		if (ret)
-			return ret;
-	}
+	ret = venus_core_power(core, POWER_ON);
+	if (ret)
+		return ret;
 
 	return hfi_core_resume(core, false);
 }
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index 8412deb68ed1..6f6de9ef1c6c 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -322,22 +322,9 @@ static void core_put_v1(struct venus_core *core)
 {
 }
 
-static int core_power_v1(struct venus_core *core, int on)
-{
-	int ret = 0;
-
-	if (on == POWER_ON)
-		ret = core_clks_enable(core);
-	else
-		core_clks_disable(core);
-
-	return ret;
-}
-
 static const struct venus_pm_ops pm_ops_v1 = {
 	.core_get = venus_clks_get,
 	.core_put = core_put_v1,
-	.core_power = core_power_v1,
 	.load_scale = load_scale_v1,
 };
 
@@ -410,7 +397,6 @@ static int venc_power_v3(struct device *dev, int on)
 static const struct venus_pm_ops pm_ops_v3 = {
 	.core_get = venus_clks_get,
 	.core_put = core_put_v1,
-	.core_power = core_power_v1,
 	.vdec_get = vdec_get_v3,
 	.vdec_power = vdec_power_v3,
 	.venc_get = venc_get_v3,
@@ -990,7 +976,7 @@ static void core_put_v4(struct venus_core *core)
 	vcodec_domains_put(core);
 }
 
-static int core_power_v4(struct venus_core *core, int on)
+int venus_core_power(struct venus_core *core, int on)
 {
 	struct device *dev = core->dev;
 	struct device *pmctrl = core->pmdomains ?
@@ -1138,7 +1124,6 @@ static int load_scale_v4(struct venus_inst *inst)
 static const struct venus_pm_ops pm_ops_v4 = {
 	.core_get = core_get_v4,
 	.core_put = core_put_v4,
-	.core_power = core_power_v4,
 	.vdec_get = vdec_get_v4,
 	.vdec_put = vdec_put_v4,
 	.vdec_power = vdec_power_v4,
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.h b/drivers/media/platform/qcom/venus/pm_helpers.h
index a492c50c5543..77db940a265c 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.h
+++ b/drivers/media/platform/qcom/venus/pm_helpers.h
@@ -12,7 +12,6 @@ struct venus_core;
 struct venus_pm_ops {
 	int (*core_get)(struct venus_core *core);
 	void (*core_put)(struct venus_core *core);
-	int (*core_power)(struct venus_core *core, int on);
 
 	int (*vdec_get)(struct device *dev);
 	void (*vdec_put)(struct device *dev);
@@ -28,6 +27,7 @@ struct venus_pm_ops {
 };
 
 const struct venus_pm_ops *venus_pm_get(enum hfi_version version);
+int venus_core_power(struct venus_core *core, int on);
 
 static inline int venus_pm_load_scale(struct venus_inst *inst)
 {

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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Fri, 09 Feb 2024 22:09:58 +0100
Subject: [PATCH v2 14/20] media: venus: pm_helpers: Remove pm_ops->core_put
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Without an OPP table and with vcodec_pmdomains_num (so, v1, v3 and
sdm845_legacy targets), core_put_v4 is a NOP, jut like core_put_v1.
Unify them!

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/core.c       |  8 +++-----
 drivers/media/platform/qcom/venus/pm_helpers.c | 17 +----------------
 drivers/media/platform/qcom/venus/pm_helpers.h |  2 +-
 3 files changed, 5 insertions(+), 22 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 9bfd2a30084b..666adc5aac38 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -426,15 +426,14 @@ static int venus_probe(struct platform_device *pdev)
 err_core_deinit:
 	hfi_core_deinit(core, false);
 err_core_put:
-	if (core->pm_ops->core_put)
-		core->pm_ops->core_put(core);
+	vcodec_domains_put(core);
+
 	return ret;
 }
 
 static void venus_remove(struct platform_device *pdev)
 {
 	struct venus_core *core = platform_get_drvdata(pdev);
-	const struct venus_pm_ops *pm_ops = core->pm_ops;
 	struct device *dev = core->dev;
 	int ret;
 
@@ -452,8 +451,7 @@ static void venus_remove(struct platform_device *pdev)
 	pm_runtime_put_sync(dev);
 	pm_runtime_disable(dev);
 
-	if (pm_ops->core_put)
-		pm_ops->core_put(core);
+	vcodec_domains_put(core);
 
 	v4l2_device_unregister(&core->v4l2_dev);
 
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index 6f6de9ef1c6c..32f9ccfa9d8a 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -318,13 +318,8 @@ static int load_scale_v1(struct venus_inst *inst)
 	return ret;
 }
 
-static void core_put_v1(struct venus_core *core)
-{
-}
-
 static const struct venus_pm_ops pm_ops_v1 = {
 	.core_get = venus_clks_get,
-	.core_put = core_put_v1,
 	.load_scale = load_scale_v1,
 };
 
@@ -396,7 +391,6 @@ static int venc_power_v3(struct device *dev, int on)
 
 static const struct venus_pm_ops pm_ops_v3 = {
 	.core_get = venus_clks_get,
-	.core_put = core_put_v1,
 	.vdec_get = vdec_get_v3,
 	.vdec_power = vdec_power_v3,
 	.venc_get = venc_get_v3,
@@ -893,7 +887,7 @@ static int vcodec_domains_get(struct venus_core *core)
 	return ret;
 }
 
-static void vcodec_domains_put(struct venus_core *core)
+void vcodec_domains_put(struct venus_core *core)
 {
 	dev_pm_domain_detach_list(core->pmdomains);
 
@@ -968,14 +962,6 @@ static int core_get_v4(struct venus_core *core)
 	return 0;
 }
 
-static void core_put_v4(struct venus_core *core)
-{
-	if (legacy_binding)
-		return;
-
-	vcodec_domains_put(core);
-}
-
 int venus_core_power(struct venus_core *core, int on)
 {
 	struct device *dev = core->dev;
@@ -1123,7 +1109,6 @@ static int load_scale_v4(struct venus_inst *inst)
 
 static const struct venus_pm_ops pm_ops_v4 = {
 	.core_get = core_get_v4,
-	.core_put = core_put_v4,
 	.vdec_get = vdec_get_v4,
 	.vdec_put = vdec_put_v4,
 	.vdec_power = vdec_power_v4,
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.h b/drivers/media/platform/qcom/venus/pm_helpers.h
index 77db940a265c..3014b39aa6e3 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.h
+++ b/drivers/media/platform/qcom/venus/pm_helpers.h
@@ -11,7 +11,6 @@ struct venus_core;
 
 struct venus_pm_ops {
 	int (*core_get)(struct venus_core *core);
-	void (*core_put)(struct venus_core *core);
 
 	int (*vdec_get)(struct device *dev);
 	void (*vdec_put)(struct device *dev);
@@ -28,6 +27,7 @@ struct venus_pm_ops {
 
 const struct venus_pm_ops *venus_pm_get(enum hfi_version version);
 int venus_core_power(struct venus_core *core, int on);
+void vcodec_domains_put(struct venus_core *core);
 
 static inline int venus_pm_load_scale(struct venus_inst *inst)
 {

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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Fri, 09 Feb 2024 22:09:59 +0100
Subject: [PATCH v2 15/20] media: venus: core: Define a pointer to core->res
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To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
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 Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
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Cc: Marijn Suijten <marijn.suijten@somainline.org>,
 Stanimir Varbanov <stanimir.varbanov@linaro.org>,
 Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
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To make the code more concise, define a new variable 'res' pointing to
the abundantly referenced core->res.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/core.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 666adc5aac38..70c3c9dc49c6 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -285,6 +285,7 @@ static irqreturn_t venus_isr_thread(int irq, void *dev_id)
 
 static int venus_probe(struct platform_device *pdev)
 {
+	const struct venus_resources *res;
 	struct device *dev = &pdev->dev;
 	struct venus_core *core;
 	int i, ret;
@@ -315,9 +316,11 @@ static int venus_probe(struct platform_device *pdev)
 	if (!core->res)
 		return -ENODEV;
 
+	res = core->res;
+
 	mutex_init(&core->pm_lock);
 
-	core->pm_ops = venus_pm_get(core->res->hfi_version);
+	core->pm_ops = venus_pm_get(res->hfi_version);
 	if (!core->pm_ops)
 		return -ENODEV;
 
@@ -325,8 +328,8 @@ static int venus_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	for (i = 0; i < core->res->resets_num; i++) {
-		core->resets[i] = devm_reset_control_get_exclusive(dev, core->res->resets[i]);
+	for (i = 0; i < res->resets_num; i++) {
+		core->resets[i] = devm_reset_control_get_exclusive(dev, res->resets[i]);
 		if (IS_ERR(core->resets[i]))
 			return PTR_ERR(core->resets[i]);
 	}
@@ -337,7 +340,7 @@ static int venus_probe(struct platform_device *pdev)
 			return ret;
 	}
 
-	ret = dma_set_mask_and_coherent(dev, core->res->dma_mask);
+	ret = dma_set_mask_and_coherent(dev, res->dma_mask);
 	if (ret)
 		goto err_core_put;
 

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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Fri, 09 Feb 2024 22:10:00 +0100
Subject: [PATCH v2 16/20] media: venus: pm_helpers: Simplify vcodec clock
 handling
Precedence: bulk
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To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
 Vikash Garodia <quic_vgarodia@quicinc.com>,
 Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
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Cc: Marijn Suijten <marijn.suijten@somainline.org>,
 Stanimir Varbanov <stanimir.varbanov@linaro.org>,
 Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
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Currently the infrastructure is set up for vast expandability, but
it's far too complex for what is just 0-2 clocks. Categorize the
clocks and simplify their getting.

One notable change is that vcodec clocks are switched to use
devm_clk_get_optional, which will let us commonize the code further
while leaving the burden of figuring out which SoCs need codec-specific
clocks and which don't to the bindings checker.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/core.c       |  18 ----
 drivers/media/platform/qcom/venus/core.h       |   9 +-
 drivers/media/platform/qcom/venus/pm_helpers.c | 129 +++++++++++++------------
 3 files changed, 69 insertions(+), 87 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 70c3c9dc49c6..680674dd0d68 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -581,9 +581,6 @@ static const struct venus_resources msm8996_res = {
 	.reg_tbl_size = ARRAY_SIZE(msm8996_reg_preset),
 	.clks = {"core", "iface", "bus", "mbus" },
 	.clks_num = 4,
-	.vcodec0_clks = { "core" },
-	.vcodec1_clks = { "core" },
-	.vcodec_clks_num = 1,
 	.max_load = 2563200,
 	.hfi_version = HFI_VERSION_3XX,
 	.dma_mask = (GENMASK(31, 30) | GENMASK(28, 26) | GENMASK(24, 22)) - 1,
@@ -636,9 +633,6 @@ static const struct venus_resources sdm660_res = {
 	.bw_tbl_dec_size = ARRAY_SIZE(sdm660_bw_table_dec),
 	.clks = {"core", "iface", "bus", "bus_throttle" },
 	.clks_num = 4,
-	.vcodec0_clks = { "vcodec0_core" },
-	.vcodec1_clks = { "vcodec0_core" },
-	.vcodec_clks_num = 1,
 	.max_load = 1036800,
 	.hfi_version = HFI_VERSION_3XX,
 	.cp_size = 0x79000000,
@@ -680,9 +674,6 @@ static const struct venus_resources sdm845_res = {
 	.bw_tbl_dec_size = ARRAY_SIZE(sdm845_bw_table_dec),
 	.clks = {"core", "iface", "bus" },
 	.clks_num = 3,
-	.vcodec0_clks = { "core", "bus" },
-	.vcodec1_clks = { "core", "bus" },
-	.vcodec_clks_num = 2,
 	.max_load = 3110400,	/* 4096x2160@90 */
 	.hfi_version = HFI_VERSION_4XX,
 	.vpu_version = VPU_VERSION_AR50,
@@ -699,9 +690,6 @@ static const struct venus_resources sdm845_res_v2 = {
 	.bw_tbl_dec_size = ARRAY_SIZE(sdm845_bw_table_dec),
 	.clks = {"core", "iface", "bus" },
 	.clks_num = 3,
-	.vcodec0_clks = { "vcodec0_core", "vcodec0_bus" },
-	.vcodec1_clks = { "vcodec1_core", "vcodec1_bus" },
-	.vcodec_clks_num = 2,
 	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0", "vcodec1" },
 	.vcodec_pmdomains_num = 3,
 	.opp_pmdomain = pd_names_cx,
@@ -744,8 +732,6 @@ static const struct venus_resources sc7180_res = {
 	.bw_tbl_dec_size = ARRAY_SIZE(sc7180_bw_table_dec),
 	.clks = {"core", "iface", "bus" },
 	.clks_num = 3,
-	.vcodec0_clks = { "vcodec0_core", "vcodec0_bus" },
-	.vcodec_clks_num = 2,
 	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
 	.vcodec_pmdomains_num = 2,
 	.opp_pmdomain = pd_names_cx,
@@ -796,8 +782,6 @@ static const struct venus_resources sm8250_res = {
 	.clks_num = 2,
 	.resets = { "bus", "core" },
 	.resets_num = 2,
-	.vcodec0_clks = { "vcodec0_core" },
-	.vcodec_clks_num = 1,
 	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
 	.vcodec_pmdomains_num = 2,
 	.opp_pmdomain = pd_names_mx,
@@ -851,8 +835,6 @@ static const struct venus_resources sc7280_res = {
 	.ubwc_conf = &sc7280_ubwc_config,
 	.clks = {"core", "bus", "iface"},
 	.clks_num = 3,
-	.vcodec0_clks = {"vcodec_core", "vcodec_bus"},
-	.vcodec_clks_num = 2,
 	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
 	.vcodec_pmdomains_num = 2,
 	.opp_pmdomain = pd_names_cx,
diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
index 9dacf533c7ad..6ecaa3e38cac 100644
--- a/drivers/media/platform/qcom/venus/core.h
+++ b/drivers/media/platform/qcom/venus/core.h
@@ -24,9 +24,10 @@
 #define VDBGFW	"VenusFW  : "
 
 #define VIDC_CLKS_NUM_MAX		4
-#define VIDC_VCODEC_CLKS_NUM_MAX	2
 #define VIDC_RESETS_NUM_MAX		2
 
+#define MAX_NUM_VCODECS			2
+
 extern int venus_fw_debug;
 
 struct freq_tbl {
@@ -68,8 +69,6 @@ struct venus_resources {
 	const struct hfi_ubwc_config * const ubwc_conf;
 	const char * const clks[VIDC_CLKS_NUM_MAX];
 	const unsigned int clks_num;
-	const char * const vcodec0_clks[VIDC_VCODEC_CLKS_NUM_MAX];
-	const char * const vcodec1_clks[VIDC_VCODEC_CLKS_NUM_MAX];
 	const unsigned int vcodec_clks_num;
 	const char * const *vcodec_pmdomains;
 	const unsigned int vcodec_pmdomains_num;
@@ -176,8 +175,8 @@ struct venus_core {
 	void __iomem *aon_base;
 	int irq;
 	struct clk *clks[VIDC_CLKS_NUM_MAX];
-	struct clk *vcodec0_clks[VIDC_VCODEC_CLKS_NUM_MAX];
-	struct clk *vcodec1_clks[VIDC_VCODEC_CLKS_NUM_MAX];
+	struct clk *vcodec_core_clks[MAX_NUM_VCODECS];
+	struct clk *vcodec_bus_clks[MAX_NUM_VCODECS];
 	struct icc_path *video_path;
 	struct icc_path *cpucfg_path;
 	bool has_opp_table;
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index 32f9ccfa9d8a..a292c788ffba 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -110,67 +110,74 @@ static void core_clks_disable(struct venus_core *core)
 
 static int core_clks_set_rate(struct venus_core *core, unsigned long freq)
 {
-	int ret;
+	int i, ret;
 
 	ret = dev_pm_opp_set_rate(core->dev, freq);
 	if (ret)
 		return ret;
 
-	ret = clk_set_rate(core->vcodec0_clks[0], freq);
-	if (ret)
-		return ret;
-
-	ret = clk_set_rate(core->vcodec1_clks[0], freq);
-	if (ret)
-		return ret;
+	for (i = 0; i < MAX_NUM_VCODECS; i++) {
+		ret = clk_set_rate(core->vcodec_core_clks[i], freq);
+		if (ret)
+			return ret;
+	}
 
 	return 0;
 }
 
-static int vcodec_clks_get(struct venus_core *core, struct device *dev,
-			   struct clk **clks, const char * const *id)
+static int vcodec_clks_get(struct venus_core *core, struct device *dev, u8 id)
 {
-	const struct venus_resources *res = core->res;
-	unsigned int i;
+	char buf[13] = { 0 }; /* vcodecX_core\0 */
 
-	for (i = 0; i < res->vcodec_clks_num; i++) {
-		if (!id[i])
-			continue;
-		clks[i] = devm_clk_get(dev, id[i]);
-		if (IS_ERR(clks[i]))
-			return PTR_ERR(clks[i]);
+	/* Best we can do is 2 cores */
+	if (id > MAX_NUM_VCODECS - 1) {
+		dev_err(dev, "Got impossible vcodec id %u\n", id);
+		return -EINVAL;
+	};
+
+	snprintf(buf, sizeof(buf), "vcodec%u_core", id);
+
+	/* First try the non-legacy name */
+	core->vcodec_core_clks[id] = devm_clk_get_optional(dev, buf);
+	if (IS_ERR(core->vcodec_core_clks[id])) {
+		/* Try again, with the legacy name */
+		core->vcodec_core_clks[id] = devm_clk_get_optional(dev, "core");
+		if (IS_ERR(core->vcodec_core_clks[id]))
+			return PTR_ERR(core->vcodec_core_clks[id]);
+	}
+
+	memset(buf, 0, sizeof(buf));
+	snprintf(buf, sizeof(buf), "vcodec%u_bus", id);
+
+	core->vcodec_bus_clks[id] = devm_clk_get_optional(dev, buf);
+	if (IS_ERR(core->vcodec_bus_clks[id])) {
+		core->vcodec_bus_clks[id] = devm_clk_get_optional(dev, "bus");
+		if (IS_ERR(core->vcodec_bus_clks[id]))
+			return PTR_ERR(core->vcodec_bus_clks[id]);
 	}
 
 	return 0;
 }
 
-static int vcodec_clks_enable(struct venus_core *core, struct clk **clks)
+static int vcodec_clks_enable(struct venus_core *core, u8 id)
 {
-	const struct venus_resources *res = core->res;
-	unsigned int i;
 	int ret;
 
-	for (i = 0; i < res->vcodec_clks_num; i++) {
-		ret = clk_prepare_enable(clks[i]);
-		if (ret)
-			goto err;
-	}
+	ret = clk_prepare_enable(core->vcodec_core_clks[id]);
+	if (ret)
+		return ret;
 
-	return 0;
-err:
-	while (i--)
-		clk_disable_unprepare(clks[i]);
+	ret = clk_prepare_enable(core->vcodec_bus_clks[id]);
+	if (ret)
+		clk_disable_unprepare(core->vcodec_core_clks[id]);
 
 	return ret;
 }
 
-static void vcodec_clks_disable(struct venus_core *core, struct clk **clks)
+static void vcodec_clks_disable(struct venus_core *core, u8 id)
 {
-	const struct venus_resources *res = core->res;
-	unsigned int i = res->vcodec_clks_num;
-
-	while (i--)
-		clk_disable_unprepare(clks[i]);
+	clk_disable_unprepare(core->vcodec_bus_clks[id]);
+	clk_disable_unprepare(core->vcodec_core_clks[id]);
 }
 
 static u32 load_per_instance(struct venus_inst *inst)
@@ -343,8 +350,7 @@ static int vdec_get_v3(struct device *dev)
 {
 	struct venus_core *core = dev_get_drvdata(dev);
 
-	return vcodec_clks_get(core, dev, core->vcodec0_clks,
-			       core->res->vcodec0_clks);
+	return vcodec_clks_get(core, dev, 0);
 }
 
 static int vdec_power_v3(struct device *dev, int on)
@@ -355,9 +361,9 @@ static int vdec_power_v3(struct device *dev, int on)
 	vcodec_control_v3(core, VIDC_SESSION_TYPE_DEC, true);
 
 	if (on == POWER_ON)
-		ret = vcodec_clks_enable(core, core->vcodec0_clks);
+		ret = vcodec_clks_enable(core, 0);
 	else
-		vcodec_clks_disable(core, core->vcodec0_clks);
+		vcodec_clks_disable(core, 0);
 
 	vcodec_control_v3(core, VIDC_SESSION_TYPE_DEC, false);
 
@@ -368,8 +374,7 @@ static int venc_get_v3(struct device *dev)
 {
 	struct venus_core *core = dev_get_drvdata(dev);
 
-	return vcodec_clks_get(core, dev, core->vcodec1_clks,
-			       core->res->vcodec1_clks);
+	return vcodec_clks_get(core, dev, 1);
 }
 
 static int venc_power_v3(struct device *dev, int on)
@@ -380,9 +385,9 @@ static int venc_power_v3(struct device *dev, int on)
 	vcodec_control_v3(core, VIDC_SESSION_TYPE_ENC, true);
 
 	if (on == POWER_ON)
-		ret = vcodec_clks_enable(core, core->vcodec1_clks);
+		ret = vcodec_clks_enable(core, 1);
 	else
-		vcodec_clks_disable(core, core->vcodec1_clks);
+		vcodec_clks_disable(core, 1);
 
 	vcodec_control_v3(core, VIDC_SESSION_TYPE_ENC, false);
 
@@ -441,7 +446,7 @@ static int poweroff_coreid(struct venus_core *core, unsigned int coreid_mask)
 		if (ret)
 			return ret;
 
-		vcodec_clks_disable(core, core->vcodec0_clks);
+		vcodec_clks_disable(core, 0);
 
 		ret = vcodec_control_v4(core, VIDC_CORE_ID_1, false);
 		if (ret)
@@ -457,7 +462,7 @@ static int poweroff_coreid(struct venus_core *core, unsigned int coreid_mask)
 		if (ret)
 			return ret;
 
-		vcodec_clks_disable(core, core->vcodec1_clks);
+		vcodec_clks_disable(core, 1);
 
 		ret = vcodec_control_v4(core, VIDC_CORE_ID_2, false);
 		if (ret)
@@ -484,7 +489,7 @@ static int poweron_coreid(struct venus_core *core, unsigned int coreid_mask)
 		if (ret)
 			return ret;
 
-		ret = vcodec_clks_enable(core, core->vcodec0_clks);
+		ret = vcodec_clks_enable(core, 0);
 		if (ret)
 			return ret;
 
@@ -502,7 +507,7 @@ static int poweron_coreid(struct venus_core *core, unsigned int coreid_mask)
 		if (ret)
 			return ret;
 
-		ret = vcodec_clks_enable(core, core->vcodec1_clks);
+		ret = vcodec_clks_enable(core, 1);
 		if (ret)
 			return ret;
 
@@ -763,20 +768,18 @@ static int vdec_get_v4(struct device *dev)
 	if (!legacy_binding)
 		return 0;
 
-	return vcodec_clks_get(core, dev, core->vcodec0_clks,
-			       core->res->vcodec0_clks);
+	return vcodec_clks_get(core, dev, 0);
 }
 
 static void vdec_put_v4(struct device *dev)
 {
 	struct venus_core *core = dev_get_drvdata(dev);
-	unsigned int i;
 
 	if (!legacy_binding)
 		return;
 
-	for (i = 0; i < core->res->vcodec_clks_num; i++)
-		core->vcodec0_clks[i] = NULL;
+	core->vcodec_core_clks[0] = NULL;
+	core->vcodec_bus_clks[0] = NULL;
 }
 
 static int vdec_power_v4(struct device *dev, int on)
@@ -792,9 +795,9 @@ static int vdec_power_v4(struct device *dev, int on)
 		return ret;
 
 	if (on == POWER_ON)
-		ret = vcodec_clks_enable(core, core->vcodec0_clks);
+		ret = vcodec_clks_enable(core, 0);
 	else
-		vcodec_clks_disable(core, core->vcodec0_clks);
+		vcodec_clks_disable(core, 0);
 
 	vcodec_control_v4(core, VIDC_CORE_ID_1, false);
 
@@ -808,20 +811,18 @@ static int venc_get_v4(struct device *dev)
 	if (!legacy_binding)
 		return 0;
 
-	return vcodec_clks_get(core, dev, core->vcodec1_clks,
-			       core->res->vcodec1_clks);
+	return vcodec_clks_get(core, dev, 1);
 }
 
 static void venc_put_v4(struct device *dev)
 {
 	struct venus_core *core = dev_get_drvdata(dev);
-	unsigned int i;
 
 	if (!legacy_binding)
 		return;
 
-	for (i = 0; i < core->res->vcodec_clks_num; i++)
-		core->vcodec1_clks[i] = NULL;
+	core->vcodec_core_clks[1] = NULL;
+	core->vcodec_bus_clks[1] = NULL;
 }
 
 static int venc_power_v4(struct device *dev, int on)
@@ -837,9 +838,9 @@ static int venc_power_v4(struct device *dev, int on)
 		return ret;
 
 	if (on == POWER_ON)
-		ret = vcodec_clks_enable(core, core->vcodec1_clks);
+		ret = vcodec_clks_enable(core, 1);
 	else
-		vcodec_clks_disable(core, core->vcodec1_clks);
+		vcodec_clks_disable(core, 1);
 
 	vcodec_control_v4(core, VIDC_CORE_ID_2, false);
 
@@ -934,11 +935,11 @@ static int core_get_v4(struct venus_core *core)
 
 	dev_info(dev, "%s legacy binding\n", legacy_binding ? "" : "non");
 
-	ret = vcodec_clks_get(core, dev, core->vcodec0_clks, res->vcodec0_clks);
+	ret = vcodec_clks_get(core, dev, 0);
 	if (ret)
 		return ret;
 
-	ret = vcodec_clks_get(core, dev, core->vcodec1_clks, res->vcodec1_clks);
+	ret = vcodec_clks_get(core, dev, 1);
 	if (ret)
 		return ret;
 

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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Fri, 09 Feb 2024 22:10:01 +0100
Subject: [PATCH v2 17/20] media: venus: pm_helpers: Commonize getting
 clocks and GenPDs
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To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
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 Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
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Cc: Marijn Suijten <marijn.suijten@somainline.org>,
 Stanimir Varbanov <stanimir.varbanov@linaro.org>,
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As has been the story with the past few commits, much of the resource
acquisition logic is totally identical between different generations
and there's no good reason to invent a new function for each one.

Commonize core_get() and rename it to venus_get_resources() to be more
meaningful.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/core.c       | 8 +++-----
 drivers/media/platform/qcom/venus/pm_helpers.c | 5 +----
 drivers/media/platform/qcom/venus/pm_helpers.h | 3 +--
 3 files changed, 5 insertions(+), 11 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 680674dd0d68..873affe17537 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -334,11 +334,9 @@ static int venus_probe(struct platform_device *pdev)
 			return PTR_ERR(core->resets[i]);
 	}
 
-	if (core->pm_ops->core_get) {
-		ret = core->pm_ops->core_get(core);
-		if (ret)
-			return ret;
-	}
+	ret = venus_get_resources(core);
+	if (ret)
+		return ret;
 
 	ret = dma_set_mask_and_coherent(dev, res->dma_mask);
 	if (ret)
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index a292c788ffba..1cbcffbc29af 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -326,7 +326,6 @@ static int load_scale_v1(struct venus_inst *inst)
 }
 
 static const struct venus_pm_ops pm_ops_v1 = {
-	.core_get = venus_clks_get,
 	.load_scale = load_scale_v1,
 };
 
@@ -395,7 +394,6 @@ static int venc_power_v3(struct device *dev, int on)
 }
 
 static const struct venus_pm_ops pm_ops_v3 = {
-	.core_get = venus_clks_get,
 	.vdec_get = vdec_get_v3,
 	.vdec_power = vdec_power_v3,
 	.venc_get = venc_get_v3,
@@ -920,7 +918,7 @@ static int core_resets_reset(struct venus_core *core)
 	return ret;
 }
 
-static int core_get_v4(struct venus_core *core)
+int venus_get_resources(struct venus_core *core)
 {
 	struct device *dev = core->dev;
 	const struct venus_resources *res = core->res;
@@ -1109,7 +1107,6 @@ static int load_scale_v4(struct venus_inst *inst)
 }
 
 static const struct venus_pm_ops pm_ops_v4 = {
-	.core_get = core_get_v4,
 	.vdec_get = vdec_get_v4,
 	.vdec_put = vdec_put_v4,
 	.vdec_power = vdec_power_v4,
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.h b/drivers/media/platform/qcom/venus/pm_helpers.h
index 3014b39aa6e3..7a55a55029f3 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.h
+++ b/drivers/media/platform/qcom/venus/pm_helpers.h
@@ -10,8 +10,6 @@ struct venus_core;
 #define POWER_OFF	0
 
 struct venus_pm_ops {
-	int (*core_get)(struct venus_core *core);
-
 	int (*vdec_get)(struct device *dev);
 	void (*vdec_put)(struct device *dev);
 	int (*vdec_power)(struct device *dev, int on);
@@ -28,6 +26,7 @@ struct venus_pm_ops {
 const struct venus_pm_ops *venus_pm_get(enum hfi_version version);
 int venus_core_power(struct venus_core *core, int on);
 void vcodec_domains_put(struct venus_core *core);
+int venus_get_resources(struct venus_core *core);
 
 static inline int venus_pm_load_scale(struct venus_inst *inst)
 {

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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Fri, 09 Feb 2024 22:10:02 +0100
Subject: [PATCH v2 18/20] media: venus: pm_helpers: Commonize vdec_get()
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This function can be very easily commonized between the supported gens.
Do so!

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/pm_helpers.c | 22 ++--------------------
 drivers/media/platform/qcom/venus/pm_helpers.h |  2 +-
 drivers/media/platform/qcom/venus/vdec.c       |  9 +++++++--
 3 files changed, 10 insertions(+), 23 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index 1cbcffbc29af..cf0794acf5d0 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -125,7 +125,7 @@ static int core_clks_set_rate(struct venus_core *core, unsigned long freq)
 	return 0;
 }
 
-static int vcodec_clks_get(struct venus_core *core, struct device *dev, u8 id)
+int vcodec_clks_get(struct venus_core *core, struct device *dev, u8 id)
 {
 	char buf[13] = { 0 }; /* vcodecX_core\0 */
 
@@ -158,6 +158,7 @@ static int vcodec_clks_get(struct venus_core *core, struct device *dev, u8 id)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(vcodec_clks_get);
 
 static int vcodec_clks_enable(struct venus_core *core, u8 id)
 {
@@ -345,13 +346,6 @@ vcodec_control_v3(struct venus_core *core, u32 session_type, bool enable)
 		writel(1, ctrl);
 }
 
-static int vdec_get_v3(struct device *dev)
-{
-	struct venus_core *core = dev_get_drvdata(dev);
-
-	return vcodec_clks_get(core, dev, 0);
-}
-
 static int vdec_power_v3(struct device *dev, int on)
 {
 	struct venus_core *core = dev_get_drvdata(dev);
@@ -394,7 +388,6 @@ static int venc_power_v3(struct device *dev, int on)
 }
 
 static const struct venus_pm_ops pm_ops_v3 = {
-	.vdec_get = vdec_get_v3,
 	.vdec_power = vdec_power_v3,
 	.venc_get = venc_get_v3,
 	.venc_power = venc_power_v3,
@@ -759,16 +752,6 @@ static int coreid_power_v4(struct venus_inst *inst, int on)
 	return ret;
 }
 
-static int vdec_get_v4(struct device *dev)
-{
-	struct venus_core *core = dev_get_drvdata(dev);
-
-	if (!legacy_binding)
-		return 0;
-
-	return vcodec_clks_get(core, dev, 0);
-}
-
 static void vdec_put_v4(struct device *dev)
 {
 	struct venus_core *core = dev_get_drvdata(dev);
@@ -1107,7 +1090,6 @@ static int load_scale_v4(struct venus_inst *inst)
 }
 
 static const struct venus_pm_ops pm_ops_v4 = {
-	.vdec_get = vdec_get_v4,
 	.vdec_put = vdec_put_v4,
 	.vdec_power = vdec_power_v4,
 	.venc_get = venc_get_v4,
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.h b/drivers/media/platform/qcom/venus/pm_helpers.h
index 7a55a55029f3..4afc57dac865 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.h
+++ b/drivers/media/platform/qcom/venus/pm_helpers.h
@@ -10,7 +10,6 @@ struct venus_core;
 #define POWER_OFF	0
 
 struct venus_pm_ops {
-	int (*vdec_get)(struct device *dev);
 	void (*vdec_put)(struct device *dev);
 	int (*vdec_power)(struct device *dev, int on);
 
@@ -27,6 +26,7 @@ const struct venus_pm_ops *venus_pm_get(enum hfi_version version);
 int venus_core_power(struct venus_core *core, int on);
 void vcodec_domains_put(struct venus_core *core);
 int venus_get_resources(struct venus_core *core);
+int vcodec_clks_get(struct venus_core *core, struct device *dev, u8 id);
 
 static inline int venus_pm_load_scale(struct venus_inst *inst)
 {
diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c
index 29130a9441e7..d127311100cd 100644
--- a/drivers/media/platform/qcom/venus/vdec.c
+++ b/drivers/media/platform/qcom/venus/vdec.c
@@ -1788,8 +1788,13 @@ static int vdec_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, core);
 
-	if (core->pm_ops->vdec_get) {
-		ret = core->pm_ops->vdec_get(dev);
+	/*
+	 * If the vcodec core clock is missing by now, it either doesn't exist
+	 * (8916) or deprecated bindings with pre-assigned core functions and
+	 * resources under the decoder node are in use.
+	 */
+	if (!core->vcodec_core_clks[0]) {
+		ret = vcodec_clks_get(core, dev, 0);
 		if (ret)
 			return ret;
 	}

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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Fri, 09 Feb 2024 22:10:03 +0100
Subject: [PATCH v2 19/20] media: venus: pm_helpers: Commonize venc_get()
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To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
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 Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
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Cc: Marijn Suijten <marijn.suijten@somainline.org>,
 Stanimir Varbanov <stanimir.varbanov@linaro.org>,
 Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
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This function can be very easily commonized between the supported gens.
Do so!

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/pm_helpers.c | 19 -------------------
 drivers/media/platform/qcom/venus/pm_helpers.h |  1 -
 drivers/media/platform/qcom/venus/venc.c       |  9 +++++++--
 3 files changed, 7 insertions(+), 22 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index cf0794acf5d0..9df8f2292c17 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -363,13 +363,6 @@ static int vdec_power_v3(struct device *dev, int on)
 	return ret;
 }
 
-static int venc_get_v3(struct device *dev)
-{
-	struct venus_core *core = dev_get_drvdata(dev);
-
-	return vcodec_clks_get(core, dev, 1);
-}
-
 static int venc_power_v3(struct device *dev, int on)
 {
 	struct venus_core *core = dev_get_drvdata(dev);
@@ -389,7 +382,6 @@ static int venc_power_v3(struct device *dev, int on)
 
 static const struct venus_pm_ops pm_ops_v3 = {
 	.vdec_power = vdec_power_v3,
-	.venc_get = venc_get_v3,
 	.venc_power = venc_power_v3,
 	.load_scale = load_scale_v1,
 };
@@ -785,16 +777,6 @@ static int vdec_power_v4(struct device *dev, int on)
 	return ret;
 }
 
-static int venc_get_v4(struct device *dev)
-{
-	struct venus_core *core = dev_get_drvdata(dev);
-
-	if (!legacy_binding)
-		return 0;
-
-	return vcodec_clks_get(core, dev, 1);
-}
-
 static void venc_put_v4(struct device *dev)
 {
 	struct venus_core *core = dev_get_drvdata(dev);
@@ -1092,7 +1074,6 @@ static int load_scale_v4(struct venus_inst *inst)
 static const struct venus_pm_ops pm_ops_v4 = {
 	.vdec_put = vdec_put_v4,
 	.vdec_power = vdec_power_v4,
-	.venc_get = venc_get_v4,
 	.venc_put = venc_put_v4,
 	.venc_power = venc_power_v4,
 	.coreid_power = coreid_power_v4,
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.h b/drivers/media/platform/qcom/venus/pm_helpers.h
index 4afc57dac865..cbf54e6c6eab 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.h
+++ b/drivers/media/platform/qcom/venus/pm_helpers.h
@@ -13,7 +13,6 @@ struct venus_pm_ops {
 	void (*vdec_put)(struct device *dev);
 	int (*vdec_power)(struct device *dev, int on);
 
-	int (*venc_get)(struct device *dev);
 	void (*venc_put)(struct device *dev);
 	int (*venc_power)(struct device *dev, int on);
 
diff --git a/drivers/media/platform/qcom/venus/venc.c b/drivers/media/platform/qcom/venus/venc.c
index 3ec2fb8d9fab..d17aeba74b49 100644
--- a/drivers/media/platform/qcom/venus/venc.c
+++ b/drivers/media/platform/qcom/venus/venc.c
@@ -1557,8 +1557,13 @@ static int venc_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, core);
 
-	if (core->pm_ops->venc_get) {
-		ret = core->pm_ops->venc_get(dev);
+	/*
+	 * If the vcodec core clock is missing by now, it either doesn't exist
+	 * (8916) or deprecated bindings with pre-assigned core functions and
+	 * resources under the decoder node are in use.
+	 */
+	if (!core->vcodec_core_clks[1]) {
+		ret = vcodec_clks_get(core, dev, 1);
 		if (ret)
 			return ret;
 	}

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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Fri, 09 Feb 2024 22:10:04 +0100
Subject: [PATCH v2 20/20] media: venus: pm_helpers: Use reset_bulk API
Precedence: bulk
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In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
 Vikash Garodia <quic_vgarodia@quicinc.com>,
 Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
 Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
 Mauro Carvalho Chehab <mchehab@kernel.org>,
 Dikshita Agarwal <quic_dikshita@quicinc.com>,
 Philipp Zabel <p.zabel@pengutronix.de>
Cc: Marijn Suijten <marijn.suijten@somainline.org>,
 Stanimir Varbanov <stanimir.varbanov@linaro.org>,
 Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
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All of the resets are toggled together. Use the bulk api to save on some
code complexity.

The delay between resets is now correctly determined by the reset
framework.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
---
 drivers/media/platform/qcom/venus/core.c       | 15 ++++++++++-----
 drivers/media/platform/qcom/venus/core.h       |  4 ++--
 drivers/media/platform/qcom/venus/pm_helpers.c | 15 +++------------
 3 files changed, 15 insertions(+), 19 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 873affe17537..ff5601a5ce77 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -328,11 +328,16 @@ static int venus_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	for (i = 0; i < res->resets_num; i++) {
-		core->resets[i] = devm_reset_control_get_exclusive(dev, res->resets[i]);
-		if (IS_ERR(core->resets[i]))
-			return PTR_ERR(core->resets[i]);
-	}
+	core->resets = devm_kcalloc(dev, res->resets_num, sizeof(*core->resets), GFP_KERNEL);
+	if (res->resets_num && !core->resets)
+		return -ENOMEM;
+
+	for (i = 0; i < res->resets_num; i++)
+		core->resets[i].id = res->resets[i];
+
+	ret = devm_reset_control_bulk_get_exclusive(dev, res->resets_num, core->resets);
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to get resets\n");
 
 	ret = venus_get_resources(core);
 	if (ret)
diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
index 6ecaa3e38cac..2376b9cbdf2c 100644
--- a/drivers/media/platform/qcom/venus/core.h
+++ b/drivers/media/platform/qcom/venus/core.h
@@ -130,7 +130,7 @@ struct venus_format {
  * @pmdomains:	a pointer to a list of pmdomains
  * @opp_dl_venus: an device-link for device OPP
  * @opp_pmdomain: an OPP power-domain
- * @resets: an array of reset signals
+ * @resets: a reset_control_bulk_data array of hardware reset signals
  * @vdev_dec:	a reference to video device structure for decoder instances
  * @vdev_enc:	a reference to video device structure for encoder instances
  * @v4l2_dev:	a holder for v4l2 device structure
@@ -183,7 +183,7 @@ struct venus_core {
 	struct dev_pm_domain_list *pmdomains;
 	struct device_link *opp_dl_venus;
 	struct device *opp_pmdomain;
-	struct reset_control *resets[VIDC_RESETS_NUM_MAX];
+	struct reset_control_bulk_data *resets;
 	struct video_device *vdev_dec;
 	struct video_device *vdev_enc;
 	struct v4l2_device v4l2_dev;
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index 9df8f2292c17..170fb131cb1e 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -865,21 +865,12 @@ void vcodec_domains_put(struct venus_core *core)
 static int core_resets_reset(struct venus_core *core)
 {
 	const struct venus_resources *res = core->res;
-	unsigned int i;
 	int ret;
 
-	for (i = 0; i < res->resets_num; i++) {
-		ret = reset_control_assert(core->resets[i]);
-		if (ret)
-			goto err;
-
-		usleep_range(150, 250);
-		ret = reset_control_deassert(core->resets[i]);
-		if (ret)
-			goto err;
-	}
+	ret = reset_control_bulk_reset(res->resets_num, core->resets);
+	if (ret)
+		dev_err(core->dev, "Failed to toggle resets: %d\n", ret);
 
-err:
 	return ret;
 }
 

Re: [PATCH v2 01/20] media: venus: pm_helpers: Only set rate of the core clock in core_clks_enable

[Dikshita Agarwal]

Hi All,

Please ignore this patch, didn't realize it was in my workspace when I sent
the other series. Sorry for spam.

Thanks,
Dikshita

On 7/12/2024 11:18 AM, Dikshita Agarwal wrote:
> From: Konrad Dybcio <konrad.dybcio@linaro.org>
> 
> Commit c22b1a29497c ("media: venus: core,pm: Vote for min clk freq
> during venus boot") intended to up the rate of the Venus core clock
> from the XO minimum to something more reasonable, based on the per-
> SoC frequency table.
> 
> Unfortunately, it ended up calling set_rate with that same argument
> on all clocks in res->clks. Fix that using the OPP API.
> 
> Fixes: c22b1a29497c ("media: venus: core,pm: Vote for min clk freq during venus boot")
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/pm_helpers.c | 23 +++++++++++------------
>  1 file changed, 11 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
> index 502822059498..8bd0ce4ce69d 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.c
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c
> @@ -41,24 +41,23 @@ static int core_clks_get(struct venus_core *core)
>  static int core_clks_enable(struct venus_core *core)
>  {
>  	const struct venus_resources *res = core->res;
> -	const struct freq_tbl *freq_tbl = core->res->freq_tbl;
> -	unsigned int freq_tbl_size = core->res->freq_tbl_size;
> -	unsigned long freq;
> +	struct dev_pm_opp *opp;
> +	unsigned long freq = 0;
>  	unsigned int i;
>  	int ret;
>  
> -	if (!freq_tbl)
> -		return -EINVAL;
> +	if (core->has_opp_table) {
> +		opp = dev_pm_opp_find_freq_ceil(core->dev, &freq);
> +		if (IS_ERR(opp))
> +			return PTR_ERR(opp);
> +		dev_pm_opp_put(opp);
>  
> -	freq = freq_tbl[freq_tbl_size - 1].freq;
> +		ret = dev_pm_opp_set_rate(core->dev, freq);
> +		if (ret)
> +			return ret;
> +	}
>  
>  	for (i = 0; i < res->clks_num; i++) {
> -		if (IS_V6(core)) {
> -			ret = clk_set_rate(core->clks[i], freq);
> -			if (ret)
> -				goto err;
> -		}
> -
>  		ret = clk_prepare_enable(core->clks[i]);
>  		if (ret)
>  			goto err;
> 
> From patchwork Fri Feb  9 21:09:46 2024
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> From: Konrad Dybcio <konrad.dybcio@linaro.org>
> Date: Fri, 09 Feb 2024 22:09:46 +0100
> Subject: [PATCH v2 02/20] media: venus: pm_helpers: Rename core_clks_get to
>  venus_clks_get
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> In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
> To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
>  Vikash Garodia <quic_vgarodia@quicinc.com>,
>  Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
>  Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
>  Mauro Carvalho Chehab <mchehab@kernel.org>,
>  Dikshita Agarwal <quic_dikshita@quicinc.com>,
>  Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Marijn Suijten <marijn.suijten@somainline.org>,
>  Stanimir Varbanov <stanimir.varbanov@linaro.org>,
>  Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
>  linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
>  linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
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> 
> "core" is used in multiple contexts when talking about Venus, rename
> the function to save on confusion.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/pm_helpers.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
> index 8bd0ce4ce69d..ac7c83404c6e 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.c
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c
> @@ -23,7 +23,7 @@
>  
>  static bool legacy_binding;
>  
> -static int core_clks_get(struct venus_core *core)
> +static int venus_clks_get(struct venus_core *core)
>  {
>  	const struct venus_resources *res = core->res;
>  	struct device *dev = core->dev;
> @@ -294,7 +294,7 @@ static int core_get_v1(struct venus_core *core)
>  {
>  	int ret;
>  
> -	ret = core_clks_get(core);
> +	ret = venus_clks_get(core);
>  	if (ret)
>  		return ret;
>  
> @@ -961,7 +961,7 @@ static int core_get_v4(struct venus_core *core)
>  	const struct venus_resources *res = core->res;
>  	int ret;
>  
> -	ret = core_clks_get(core);
> +	ret = venus_clks_get(core);
>  	if (ret)
>  		return ret;
>  
> 
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> From: Konrad Dybcio <konrad.dybcio@linaro.org>
> Date: Fri, 09 Feb 2024 22:09:47 +0100
> Subject: [PATCH v2 03/20] media: venus: pm_helpers: Add kerneldoc to
>  venus_clks_get()
> Precedence: bulk
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> References: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
> In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
> To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
>  Vikash Garodia <quic_vgarodia@quicinc.com>,
>  Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
>  Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
>  Mauro Carvalho Chehab <mchehab@kernel.org>,
>  Dikshita Agarwal <quic_dikshita@quicinc.com>,
>  Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Marijn Suijten <marijn.suijten@somainline.org>,
>  Stanimir Varbanov <stanimir.varbanov@linaro.org>,
>  Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
>  linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
>  linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
> X-Mailer: b4 0.12.2
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>  i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id;
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> 
> To make it easier to understand the various clock requirements within
> this driver, add kerneldoc to venus_clk_get() explaining the fluff.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/pm_helpers.c | 28 ++++++++++++++++++++++++++
>  1 file changed, 28 insertions(+)
> 
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
> index ac7c83404c6e..ea0a7d4601e2 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.c
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c
> @@ -23,6 +23,34 @@
>  
>  static bool legacy_binding;
>  
> +/**
> + * venus_clks_get() - Get Venus clocks that are not bound to a vcodec
> + * @core: A pointer to the venus core resource
> + *
> + * The Venus block (depending on the generation) can be split into a couple
> + * of clock domains: one for "main logic" and one for each video core (0-2pcs).
> + *
> + * MSM8916 (and possibly other HFIv1 users) only feature the "main logic"
> + * domain, so this function is the only kind if clk_get necessary there.
> + *
> + * MSM8996 (and other HFIv3 users) feature two video cores, with core0 being
> + * statically proclaimed a decoder and core1 an encoder, with both having
> + * their own clock domains.
> + *
> + * SDM845 features two video cores, each one of which may or may not be
> + * subdivided into 2 enc/dec threads.
> + *
> + * Other SoCs either feature a single video core (with its own clock domain)
> + * or 1 video core and 1 CVP (Computer Vision Processor) core. In both cases
> + * we treat it the same (CVP only happens to live near-by Venus on the SoC).
> + *
> + * Due to unfortunate developments in the past, we have to support bindings
> + * (MSM8996, SDM660, SDM845) that require specifying the clocks and
> + * power-domains associated with a video core domain in a bogus subnode,
> + * which means that additional fluff is necessary..
> + *
> + * Return: 0 on success, negative errno on failure.
> + */
>  static int venus_clks_get(struct venus_core *core)
>  {
>  	const struct venus_resources *res = core->res;
> 
> From patchwork Fri Feb  9 21:09:48 2024
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> From: Konrad Dybcio <konrad.dybcio@linaro.org>
> Date: Fri, 09 Feb 2024 22:09:48 +0100
> Subject: [PATCH v2 04/20] media: venus: core: Set OPP clkname in a common
>  code path
> Precedence: bulk
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> References: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
> In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
> To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
>  Vikash Garodia <quic_vgarodia@quicinc.com>,
>  Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
>  Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
>  Mauro Carvalho Chehab <mchehab@kernel.org>,
>  Dikshita Agarwal <quic_dikshita@quicinc.com>,
>  Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Marijn Suijten <marijn.suijten@somainline.org>,
>  Stanimir Varbanov <stanimir.varbanov@linaro.org>,
>  Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
>  linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
>  linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
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>  i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id;
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>  pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms=
> 
> Calling devm_pm_opp_set_clkname() is repeated for all HFI versions in
> pm_ops->core_power.
> 
> Move it to the common codepath.
> 
> This also lets us get rid of core_get_v1.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/core.c       |  5 +++++
>  drivers/media/platform/qcom/venus/pm_helpers.c | 23 ++---------------------
>  2 files changed, 7 insertions(+), 21 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index ce206b709754..5ab3c414ec0f 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -14,6 +14,7 @@
>  #include <linux/of.h>
>  #include <linux/of_platform.h>
>  #include <linux/platform_device.h>
> +#include <linux/pm_opp.h>
>  #include <linux/slab.h>
>  #include <linux/types.h>
>  #include <linux/pm_domain.h>
> @@ -319,6 +320,10 @@ static int venus_probe(struct platform_device *pdev)
>  	if (!core->pm_ops)
>  		return -ENODEV;
>  
> +	ret = devm_pm_opp_set_clkname(dev, "core");
> +	if (ret)
> +		return ret;
> +
>  	if (core->pm_ops->core_get) {
>  		ret = core->pm_ops->core_get(core);
>  		if (ret)
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
> index ea0a7d4601e2..1ba65345a5e2 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.c
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c
> @@ -318,21 +318,6 @@ static int load_scale_v1(struct venus_inst *inst)
>  	return ret;
>  }
>  
> -static int core_get_v1(struct venus_core *core)
> -{
> -	int ret;
> -
> -	ret = venus_clks_get(core);
> -	if (ret)
> -		return ret;
> -
> -	ret = devm_pm_opp_set_clkname(core->dev, "core");
> -	if (ret)
> -		return ret;
> -
> -	return 0;
> -}
> -
>  static void core_put_v1(struct venus_core *core)
>  {
>  }
> @@ -350,7 +335,7 @@ static int core_power_v1(struct venus_core *core, int on)
>  }
>  
>  static const struct venus_pm_ops pm_ops_v1 = {
> -	.core_get = core_get_v1,
> +	.core_get = venus_clks_get,
>  	.core_put = core_put_v1,
>  	.core_power = core_power_v1,
>  	.load_scale = load_scale_v1,
> @@ -423,7 +408,7 @@ static int venc_power_v3(struct device *dev, int on)
>  }
>  
>  static const struct venus_pm_ops pm_ops_v3 = {
> -	.core_get = core_get_v1,
> +	.core_get = venus_clks_get,
>  	.core_put = core_put_v1,
>  	.core_power = core_power_v1,
>  	.vdec_get = vdec_get_v3,
> @@ -1013,10 +998,6 @@ static int core_get_v4(struct venus_core *core)
>  	if (legacy_binding)
>  		return 0;
>  
> -	ret = devm_pm_opp_set_clkname(dev, "core");
> -	if (ret)
> -		return ret;
> -
>  	ret = vcodec_domains_get(core);
>  	if (ret)
>  		return ret;
> 
> From patchwork Fri Feb  9 21:09:49 2024
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>         Fri, 09 Feb 2024 13:09:55 -0800 (PST)
> From: Konrad Dybcio <konrad.dybcio@linaro.org>
> Date: Fri, 09 Feb 2024 22:09:49 +0100
> Subject: [PATCH v2 05/20] media: venus: pm_helpers: Kill dead code
> Precedence: bulk
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> In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
> To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
>  Vikash Garodia <quic_vgarodia@quicinc.com>,
>  Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
>  Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
>  Mauro Carvalho Chehab <mchehab@kernel.org>,
>  Dikshita Agarwal <quic_dikshita@quicinc.com>,
>  Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Marijn Suijten <marijn.suijten@somainline.org>,
>  Stanimir Varbanov <stanimir.varbanov@linaro.org>,
>  Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
>  linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
>  linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
> X-Mailer: b4 0.12.2
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> 
> A situation like:
> 
> if (!foo)
> 	goto bar;
> 
> for (i = 0; i < foo; i++)
> 	...1...
> 
> bar:
> 	...2...
> 
> is totally identical to:
> 
> for (i = 0; i < 0; i++) // === if (0)
> 	...1...
> 
> ...2...
> 
> Get rid of such boilerplate.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/pm_helpers.c | 10 ----------
>  1 file changed, 10 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
> index 1ba65345a5e2..7193075e8c04 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.c
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c
> @@ -878,14 +878,10 @@ static int vcodec_domains_get(struct venus_core *core)
>  		.pd_flags = PD_FLAG_NO_DEV_LINK,
>  	};
>  
> -	if (!res->vcodec_pmdomains_num)
> -		goto skip_pmdomains;
> -
>  	ret = dev_pm_domain_attach_list(dev, &vcodec_data, &core->pmdomains);
>  	if (ret < 0)
>  		return ret;
>  
> -skip_pmdomains:
>  	if (!core->res->opp_pmdomain)
>  		return 0;
>  
> @@ -928,9 +924,6 @@ static int core_resets_reset(struct venus_core *core)
>  	unsigned int i;
>  	int ret;
>  
> -	if (!res->resets_num)
> -		return 0;
> -
>  	for (i = 0; i < res->resets_num; i++) {
>  		ret = reset_control_assert(core->resets[i]);
>  		if (ret)
> @@ -953,9 +946,6 @@ static int core_resets_get(struct venus_core *core)
>  	unsigned int i;
>  	int ret;
>  
> -	if (!res->resets_num)
> -		return 0;
> -
>  	for (i = 0; i < res->resets_num; i++) {
>  		core->resets[i] =
>  			devm_reset_control_get_exclusive(dev, res->resets[i]);
> 
> From patchwork Fri Feb  9 21:09:50 2024
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> From: Konrad Dybcio <konrad.dybcio@linaro.org>
> Date: Fri, 09 Feb 2024 22:09:50 +0100
> Subject: [PATCH v2 06/20] media: venus: pm_helpers: Move reset acquisition
>  to common code
> Precedence: bulk
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> In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
> To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
>  Vikash Garodia <quic_vgarodia@quicinc.com>,
>  Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
>  Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
>  Mauro Carvalho Chehab <mchehab@kernel.org>,
>  Dikshita Agarwal <quic_dikshita@quicinc.com>,
>  Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Marijn Suijten <marijn.suijten@somainline.org>,
>  Stanimir Varbanov <stanimir.varbanov@linaro.org>,
>  Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
>  linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
>  linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
> X-Mailer: b4 0.12.2
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>  i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id;
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>  pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms=
> 
> There is no reason to keep reset_get code local to HFIv4/v6.
> 
> Move it to the common part.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/core.c       |  9 ++++++++-
>  drivers/media/platform/qcom/venus/pm_helpers.c | 23 -----------------------
>  2 files changed, 8 insertions(+), 24 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index 5ab3c414ec0f..0652065cb113 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -15,6 +15,7 @@
>  #include <linux/of_platform.h>
>  #include <linux/platform_device.h>
>  #include <linux/pm_opp.h>
> +#include <linux/reset.h>
>  #include <linux/slab.h>
>  #include <linux/types.h>
>  #include <linux/pm_domain.h>
> @@ -286,7 +287,7 @@ static int venus_probe(struct platform_device *pdev)
>  {
>  	struct device *dev = &pdev->dev;
>  	struct venus_core *core;
> -	int ret;
> +	int i, ret;
>  
>  	core = devm_kzalloc(dev, sizeof(*core), GFP_KERNEL);
>  	if (!core)
> @@ -324,6 +325,12 @@ static int venus_probe(struct platform_device *pdev)
>  	if (ret)
>  		return ret;
>  
> +	for (i = 0; i < core->res->resets_num; i++) {
> +		core->resets[i] = devm_reset_control_get_exclusive(dev, core->res->resets[i]);
> +		if (IS_ERR(core->resets[i]))
> +			return PTR_ERR(core->resets[i]);
> +	}
> +
>  	if (core->pm_ops->core_get) {
>  		ret = core->pm_ops->core_get(core);
>  		if (ret)
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
> index 7193075e8c04..6017a9236bff 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.c
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c
> @@ -939,25 +939,6 @@ static int core_resets_reset(struct venus_core *core)
>  	return ret;
>  }
>  
> -static int core_resets_get(struct venus_core *core)
> -{
> -	struct device *dev = core->dev;
> -	const struct venus_resources *res = core->res;
> -	unsigned int i;
> -	int ret;
> -
> -	for (i = 0; i < res->resets_num; i++) {
> -		core->resets[i] =
> -			devm_reset_control_get_exclusive(dev, res->resets[i]);
> -		if (IS_ERR(core->resets[i])) {
> -			ret = PTR_ERR(core->resets[i]);
> -			return ret;
> -		}
> -	}
> -
> -	return 0;
> -}
> -
>  static int core_get_v4(struct venus_core *core)
>  {
>  	struct device *dev = core->dev;
> @@ -981,10 +962,6 @@ static int core_get_v4(struct venus_core *core)
>  	if (ret)
>  		return ret;
>  
> -	ret = core_resets_get(core);
> -	if (ret)
> -		return ret;
> -
>  	if (legacy_binding)
>  		return 0;
>  
> 
> From patchwork Fri Feb  9 21:09:51 2024
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> From: Konrad Dybcio <konrad.dybcio@linaro.org>
> Date: Fri, 09 Feb 2024 22:09:51 +0100
> Subject: [PATCH v2 07/20] media: venus: core: Constify all members of the
>  resource struct
> Precedence: bulk
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> To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
>  Vikash Garodia <quic_vgarodia@quicinc.com>,
>  Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
>  Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
>  Mauro Carvalho Chehab <mchehab@kernel.org>,
>  Dikshita Agarwal <quic_dikshita@quicinc.com>,
>  Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Marijn Suijten <marijn.suijten@somainline.org>,
>  Stanimir Varbanov <stanimir.varbanov@linaro.org>,
>  Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
>  linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
>  linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
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> X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519;
>  pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms=
> 
> Nothing inside the resource struct needs to be mutable. Sprinkle
> 'const' all over it. A lot of 'const'.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/core.h | 58 ++++++++++++++++----------------
>  1 file changed, 29 insertions(+), 29 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
> index 6a77de374454..6b1887f7d9cb 100644
> --- a/drivers/media/platform/qcom/venus/core.h
> +++ b/drivers/media/platform/qcom/venus/core.h
> @@ -56,39 +56,39 @@ enum vpu_version {
>  };
>  
>  struct venus_resources {
> -	u64 dma_mask;
> -	const struct freq_tbl *freq_tbl;
> -	unsigned int freq_tbl_size;
> -	const struct bw_tbl *bw_tbl_enc;
> -	unsigned int bw_tbl_enc_size;
> -	const struct bw_tbl *bw_tbl_dec;
> -	unsigned int bw_tbl_dec_size;
> -	const struct reg_val *reg_tbl;
> -	unsigned int reg_tbl_size;
> -	const struct hfi_ubwc_config *ubwc_conf;
> +	const u64 dma_mask;
> +	const struct freq_tbl * const freq_tbl;
> +	const unsigned int freq_tbl_size;
> +	const struct bw_tbl * const bw_tbl_enc;
> +	const unsigned int bw_tbl_enc_size;
> +	const struct bw_tbl * const bw_tbl_dec;
> +	const unsigned int bw_tbl_dec_size;
> +	const struct reg_val * const reg_tbl;
> +	const unsigned int reg_tbl_size;
> +	const struct hfi_ubwc_config * const ubwc_conf;
>  	const char * const clks[VIDC_CLKS_NUM_MAX];
> -	unsigned int clks_num;
> +	const unsigned int clks_num;
>  	const char * const vcodec0_clks[VIDC_VCODEC_CLKS_NUM_MAX];
>  	const char * const vcodec1_clks[VIDC_VCODEC_CLKS_NUM_MAX];
> -	unsigned int vcodec_clks_num;
> -	const char **vcodec_pmdomains;
> -	unsigned int vcodec_pmdomains_num;
> -	const char **opp_pmdomain;
> -	unsigned int vcodec_num;
> +	const unsigned int vcodec_clks_num;
> +	const char * const *vcodec_pmdomains;
> +	const unsigned int vcodec_pmdomains_num;
> +	const char * const * const opp_pmdomain;
> +	const unsigned int vcodec_num;
>  	const char * const resets[VIDC_RESETS_NUM_MAX];
> -	unsigned int resets_num;
> -	enum hfi_version hfi_version;
> -	enum vpu_version vpu_version;
> -	u8 num_vpp_pipes;
> -	u32 max_load;
> -	unsigned int vmem_id;
> -	u32 vmem_size;
> -	u32 vmem_addr;
> -	u32 cp_start;
> -	u32 cp_size;
> -	u32 cp_nonpixel_start;
> -	u32 cp_nonpixel_size;
> -	const char *fwname;
> +	const unsigned int resets_num;
> +	const enum hfi_version hfi_version;
> +	const enum vpu_version vpu_version;
> +	const u8 num_vpp_pipes;
> +	const u32 max_load;
> +	const unsigned int vmem_id;
> +	const u32 vmem_size;
> +	const u32 vmem_addr;
> +	const u32 cp_start;
> +	const u32 cp_size;
> +	const u32 cp_nonpixel_start;
> +	const u32 cp_nonpixel_size;
> +	const char * const fwname;
>  };
>  
>  enum venus_fmt {
> 
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> From: Konrad Dybcio <konrad.dybcio@linaro.org>
> Date: Fri, 09 Feb 2024 22:09:52 +0100
> Subject: [PATCH v2 08/20] media: venus: core: Deduplicate OPP genpd names
> Precedence: bulk
> X-Mailing-List: linux-media@vger.kernel.org
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> In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
> To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
>  Vikash Garodia <quic_vgarodia@quicinc.com>,
>  Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
>  Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
>  Mauro Carvalho Chehab <mchehab@kernel.org>,
>  Dikshita Agarwal <quic_dikshita@quicinc.com>,
>  Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Marijn Suijten <marijn.suijten@somainline.org>,
>  Stanimir Varbanov <stanimir.varbanov@linaro.org>,
>  Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
>  linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
>  linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
> X-Mailer: b4 0.12.2
> X-Developer-Signature: v=1; a=ed25519-sha256; t=1707512985; l=2465;
>  i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id;
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>  pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms=
> 
> Instead of redefining the same literals over and over again, define
> them once and point the reference to that definition.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/core.c | 11 +++++++----
>  1 file changed, 7 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index 0652065cb113..83ac68f1566f 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -538,6 +538,9 @@ static const struct dev_pm_ops venus_pm_ops = {
>  	SET_RUNTIME_PM_OPS(venus_runtime_suspend, venus_runtime_resume, NULL)
>  };
>  
> +static const char * const pd_names_cx[] = { "cx", NULL };
> +static const char * const pd_names_mx[] = { "mx", NULL };
> +
>  static const struct freq_tbl msm8916_freq_table[] = {
>  	{ 352800, 228570000 },	/* 1920x1088 @ 30 + 1280x720 @ 30 */
>  	{ 244800, 160000000 },	/* 1920x1088 @ 30 */
> @@ -721,7 +724,7 @@ static const struct venus_resources sdm845_res_v2 = {
>  	.vcodec_clks_num = 2,
>  	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0", "vcodec1" },
>  	.vcodec_pmdomains_num = 3,
> -	.opp_pmdomain = (const char *[]) { "cx", NULL },
> +	.opp_pmdomain = pd_names_cx,
>  	.vcodec_num = 2,
>  	.max_load = 3110400,	/* 4096x2160@90 */
>  	.hfi_version = HFI_VERSION_4XX,
> @@ -770,7 +773,7 @@ static const struct venus_resources sc7180_res = {
>  	.vcodec_clks_num = 2,
>  	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
>  	.vcodec_pmdomains_num = 2,
> -	.opp_pmdomain = (const char *[]) { "cx", NULL },
> +	.opp_pmdomain = pd_names_cx,
>  	.vcodec_num = 1,
>  	.hfi_version = HFI_VERSION_4XX,
>  	.vpu_version = VPU_VERSION_AR50,
> @@ -827,7 +830,7 @@ static const struct venus_resources sm8250_res = {
>  	.vcodec_clks_num = 1,
>  	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
>  	.vcodec_pmdomains_num = 2,
> -	.opp_pmdomain = (const char *[]) { "mx", NULL },
> +	.opp_pmdomain = pd_names_mx,
>  	.vcodec_num = 1,
>  	.max_load = 7833600,
>  	.hfi_version = HFI_VERSION_6XX,
> @@ -886,7 +889,7 @@ static const struct venus_resources sc7280_res = {
>  	.vcodec_clks_num = 2,
>  	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
>  	.vcodec_pmdomains_num = 2,
> -	.opp_pmdomain = (const char *[]) { "cx", NULL },
> +	.opp_pmdomain = pd_names_cx,
>  	.vcodec_num = 1,
>  	.hfi_version = HFI_VERSION_6XX,
>  	.vpu_version = VPU_VERSION_IRIS2_1,
> 
> From patchwork Fri Feb  9 21:09:53 2024
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> From: Konrad Dybcio <konrad.dybcio@linaro.org>
> Date: Fri, 09 Feb 2024 22:09:53 +0100
> Subject: [PATCH v2 09/20] media: venus: core: Get rid of vcodec_num
> Precedence: bulk
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> In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
> To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
>  Vikash Garodia <quic_vgarodia@quicinc.com>,
>  Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
>  Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
>  Mauro Carvalho Chehab <mchehab@kernel.org>,
>  Dikshita Agarwal <quic_dikshita@quicinc.com>,
>  Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Marijn Suijten <marijn.suijten@somainline.org>,
>  Stanimir Varbanov <stanimir.varbanov@linaro.org>,
>  Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
>  linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
>  linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
> X-Mailer: b4 0.12.2
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>  i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id;
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>  pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms=
> 
> That field was only introduced to differentiate between the legacy and
> non-legacy SDM845 binding. Get rid of it.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/core.c       | 5 -----
>  drivers/media/platform/qcom/venus/core.h       | 1 -
>  drivers/media/platform/qcom/venus/pm_helpers.c | 2 +-
>  3 files changed, 1 insertion(+), 7 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index 83ac68f1566f..1307aa9cf951 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -651,7 +651,6 @@ static const struct venus_resources sdm660_res = {
>  	.vcodec0_clks = { "vcodec0_core" },
>  	.vcodec1_clks = { "vcodec0_core" },
>  	.vcodec_clks_num = 1,
> -	.vcodec_num = 1,
>  	.max_load = 1036800,
>  	.hfi_version = HFI_VERSION_3XX,
>  	.vmem_id = VIDC_RESOURCE_NONE,
> @@ -725,7 +724,6 @@ static const struct venus_resources sdm845_res_v2 = {
>  	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0", "vcodec1" },
>  	.vcodec_pmdomains_num = 3,
>  	.opp_pmdomain = pd_names_cx,
> -	.vcodec_num = 2,
>  	.max_load = 3110400,	/* 4096x2160@90 */
>  	.hfi_version = HFI_VERSION_4XX,
>  	.vpu_version = VPU_VERSION_AR50,
> @@ -774,7 +772,6 @@ static const struct venus_resources sc7180_res = {
>  	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
>  	.vcodec_pmdomains_num = 2,
>  	.opp_pmdomain = pd_names_cx,
> -	.vcodec_num = 1,
>  	.hfi_version = HFI_VERSION_4XX,
>  	.vpu_version = VPU_VERSION_AR50,
>  	.vmem_id = VIDC_RESOURCE_NONE,
> @@ -831,7 +828,6 @@ static const struct venus_resources sm8250_res = {
>  	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
>  	.vcodec_pmdomains_num = 2,
>  	.opp_pmdomain = pd_names_mx,
> -	.vcodec_num = 1,
>  	.max_load = 7833600,
>  	.hfi_version = HFI_VERSION_6XX,
>  	.vpu_version = VPU_VERSION_IRIS2,
> @@ -890,7 +886,6 @@ static const struct venus_resources sc7280_res = {
>  	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
>  	.vcodec_pmdomains_num = 2,
>  	.opp_pmdomain = pd_names_cx,
> -	.vcodec_num = 1,
>  	.hfi_version = HFI_VERSION_6XX,
>  	.vpu_version = VPU_VERSION_IRIS2_1,
>  	.num_vpp_pipes = 1,
> diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
> index 6b1887f7d9cb..22f998637618 100644
> --- a/drivers/media/platform/qcom/venus/core.h
> +++ b/drivers/media/platform/qcom/venus/core.h
> @@ -74,7 +74,6 @@ struct venus_resources {
>  	const char * const *vcodec_pmdomains;
>  	const unsigned int vcodec_pmdomains_num;
>  	const char * const * const opp_pmdomain;
> -	const unsigned int vcodec_num;
>  	const char * const resets[VIDC_RESETS_NUM_MAX];
>  	const unsigned int resets_num;
>  	const enum hfi_version hfi_version;
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
> index 6017a9236bff..8412deb68ed1 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.c
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c
> @@ -622,7 +622,7 @@ min_loaded_core(struct venus_inst *inst, u32 *min_coreid, u32 *min_load, bool lo
>  			VIDC_CORE_ID_1 : VIDC_CORE_ID_2;
>  	*min_load = min(core1_load, core2_load);
>  
> -	if (cores_max < VIDC_CORE_ID_2 || core->res->vcodec_num < 2) {
> +	if (cores_max < VIDC_CORE_ID_2 || legacy_binding) {
>  		*min_coreid = VIDC_CORE_ID_1;
>  		*min_load = core1_load;
>  	}
> 
> From patchwork Fri Feb  9 21:09:54 2024
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> From: Konrad Dybcio <konrad.dybcio@linaro.org>
> Date: Fri, 09 Feb 2024 22:09:54 +0100
> Subject: [PATCH v2 10/20] media: venus: core: Drop cache properties in
>  resource struct
> Precedence: bulk
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> In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
> To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
>  Vikash Garodia <quic_vgarodia@quicinc.com>,
>  Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
>  Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
>  Mauro Carvalho Chehab <mchehab@kernel.org>,
>  Dikshita Agarwal <quic_dikshita@quicinc.com>,
>  Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Marijn Suijten <marijn.suijten@somainline.org>,
>  Stanimir Varbanov <stanimir.varbanov@linaro.org>,
>  Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
>  linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
>  linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
> X-Mailer: b4 0.12.2
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> 
> Currently VMEM/OCMEM/LLCC is disabled on all platforms.
> 
> Make it unconditional to save on space.
> 
> These caches will not be enabled until the Venus driver can reference
> them as chunks of SRAM (they're modelled as separate devices) to avoid
> hardcoding magic addresses and rougely accessing the hardware,
> bypassing the normal accessors.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/core.c      | 24 ------------------------
>  drivers/media/platform/qcom/venus/core.h      |  3 ---
>  drivers/media/platform/qcom/venus/hfi_venus.c | 10 ++++------
>  3 files changed, 4 insertions(+), 33 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index 1307aa9cf951..43105e765c53 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -562,9 +562,6 @@ static const struct venus_resources msm8916_res = {
>  	.clks_num = 3,
>  	.max_load = 352800, /* 720p@30 + 1080p@30 */
>  	.hfi_version = HFI_VERSION_1XX,
> -	.vmem_id = VIDC_RESOURCE_NONE,
> -	.vmem_size = 0,
> -	.vmem_addr = 0,
>  	.dma_mask = 0xddc00000 - 1,
>  	.fwname = "qcom/venus-1.8/venus.mbn",
>  };
> @@ -595,9 +592,6 @@ static const struct venus_resources msm8996_res = {
>  	.vcodec_clks_num = 1,
>  	.max_load = 2563200,
>  	.hfi_version = HFI_VERSION_3XX,
> -	.vmem_id = VIDC_RESOURCE_NONE,
> -	.vmem_size = 0,
> -	.vmem_addr = 0,
>  	.dma_mask = 0xddc00000 - 1,
>  	.fwname = "qcom/venus-4.2/venus.mbn",
>  };
> @@ -653,9 +647,6 @@ static const struct venus_resources sdm660_res = {
>  	.vcodec_clks_num = 1,
>  	.max_load = 1036800,
>  	.hfi_version = HFI_VERSION_3XX,
> -	.vmem_id = VIDC_RESOURCE_NONE,
> -	.vmem_size = 0,
> -	.vmem_addr = 0,
>  	.cp_start = 0,
>  	.cp_size = 0x79000000,
>  	.cp_nonpixel_start = 0x1000000,
> @@ -702,9 +693,6 @@ static const struct venus_resources sdm845_res = {
>  	.max_load = 3110400,	/* 4096x2160@90 */
>  	.hfi_version = HFI_VERSION_4XX,
>  	.vpu_version = VPU_VERSION_AR50,
> -	.vmem_id = VIDC_RESOURCE_NONE,
> -	.vmem_size = 0,
> -	.vmem_addr = 0,
>  	.dma_mask = 0xe0000000 - 1,
>  	.fwname = "qcom/venus-5.2/venus.mbn",
>  };
> @@ -727,9 +715,6 @@ static const struct venus_resources sdm845_res_v2 = {
>  	.max_load = 3110400,	/* 4096x2160@90 */
>  	.hfi_version = HFI_VERSION_4XX,
>  	.vpu_version = VPU_VERSION_AR50,
> -	.vmem_id = VIDC_RESOURCE_NONE,
> -	.vmem_size = 0,
> -	.vmem_addr = 0,
>  	.dma_mask = 0xe0000000 - 1,
>  	.cp_start = 0,
>  	.cp_size = 0x70800000,
> @@ -774,9 +759,6 @@ static const struct venus_resources sc7180_res = {
>  	.opp_pmdomain = pd_names_cx,
>  	.hfi_version = HFI_VERSION_4XX,
>  	.vpu_version = VPU_VERSION_AR50,
> -	.vmem_id = VIDC_RESOURCE_NONE,
> -	.vmem_size = 0,
> -	.vmem_addr = 0,
>  	.dma_mask = 0xe0000000 - 1,
>  	.cp_start = 0,
>  	.cp_size = 0x70800000,
> @@ -832,9 +814,6 @@ static const struct venus_resources sm8250_res = {
>  	.hfi_version = HFI_VERSION_6XX,
>  	.vpu_version = VPU_VERSION_IRIS2,
>  	.num_vpp_pipes = 4,
> -	.vmem_id = VIDC_RESOURCE_NONE,
> -	.vmem_size = 0,
> -	.vmem_addr = 0,
>  	.dma_mask = 0xe0000000 - 1,
>  	.fwname = "qcom/vpu-1.0/venus.mbn",
>  };
> @@ -889,9 +868,6 @@ static const struct venus_resources sc7280_res = {
>  	.hfi_version = HFI_VERSION_6XX,
>  	.vpu_version = VPU_VERSION_IRIS2_1,
>  	.num_vpp_pipes = 1,
> -	.vmem_id = VIDC_RESOURCE_NONE,
> -	.vmem_size = 0,
> -	.vmem_addr = 0,
>  	.dma_mask = 0xe0000000 - 1,
>  	.cp_start = 0,
>  	.cp_size = 0x25800000,
> diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
> index 22f998637618..b1d0687d294f 100644
> --- a/drivers/media/platform/qcom/venus/core.h
> +++ b/drivers/media/platform/qcom/venus/core.h
> @@ -80,9 +80,6 @@ struct venus_resources {
>  	const enum vpu_version vpu_version;
>  	const u8 num_vpp_pipes;
>  	const u32 max_load;
> -	const unsigned int vmem_id;
> -	const u32 vmem_size;
> -	const u32 vmem_addr;
>  	const u32 cp_start;
>  	const u32 cp_size;
>  	const u32 cp_nonpixel_start;
> diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c
> index f9437b6412b9..42ff96f71235 100644
> --- a/drivers/media/platform/qcom/venus/hfi_venus.c
> +++ b/drivers/media/platform/qcom/venus/hfi_venus.c
> @@ -1067,17 +1067,14 @@ static void venus_process_msg_sys_error(struct venus_hfi_device *hdev,
>  static irqreturn_t venus_isr_thread(struct venus_core *core)
>  {
>  	struct venus_hfi_device *hdev = to_hfi_priv(core);
> -	const struct venus_resources *res;
>  	void *pkt;
>  	u32 msg_ret;
>  
>  	if (!hdev)
>  		return IRQ_NONE;
>  
> -	res = hdev->core->res;
>  	pkt = hdev->pkt_buf;
>  
> -
>  	while (!venus_iface_msgq_read(hdev, pkt)) {
>  		msg_ret = hfi_process_msg_packet(core, pkt);
>  		switch (msg_ret) {
> @@ -1085,9 +1082,10 @@ static irqreturn_t venus_isr_thread(struct venus_core *core)
>  			venus_process_msg_sys_error(hdev, pkt);
>  			break;
>  		case HFI_MSG_SYS_INIT:
> -			venus_hfi_core_set_resource(core, res->vmem_id,
> -						    res->vmem_size,
> -						    res->vmem_addr,
> +			/* Disable OCMEM/VMEM unconditionally until support is added */
> +			venus_hfi_core_set_resource(core, VIDC_RESOURCE_NONE,
> +						    0,
> +						    0,
>  						    hdev);
>  			break;
>  		case HFI_MSG_SYS_RELEASE_RESOURCE:
> 
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> From: Konrad Dybcio <konrad.dybcio@linaro.org>
> Date: Fri, 09 Feb 2024 22:09:55 +0100
> Subject: [PATCH v2 11/20] media: venus: core: Use GENMASK for dma_mask
> Precedence: bulk
> X-Mailing-List: linux-media@vger.kernel.org
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> In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
> To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
>  Vikash Garodia <quic_vgarodia@quicinc.com>,
>  Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
>  Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
>  Mauro Carvalho Chehab <mchehab@kernel.org>,
>  Dikshita Agarwal <quic_dikshita@quicinc.com>,
>  Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Marijn Suijten <marijn.suijten@somainline.org>,
>  Stanimir Varbanov <stanimir.varbanov@linaro.org>,
>  Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
>  linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
>  linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
> X-Mailer: b4 0.12.2
> X-Developer-Signature: v=1; a=ed25519-sha256; t=1707512986; l=2706;
>  i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id;
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> 
> The raw literals mean very little. Substitute it with more telling
> bitops macros.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/core.c | 14 +++++++-------
>  1 file changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index 43105e765c53..06b78e98cebd 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -562,7 +562,7 @@ static const struct venus_resources msm8916_res = {
>  	.clks_num = 3,
>  	.max_load = 352800, /* 720p@30 + 1080p@30 */
>  	.hfi_version = HFI_VERSION_1XX,
> -	.dma_mask = 0xddc00000 - 1,
> +	.dma_mask = (GENMASK(31, 30) | GENMASK(28, 26) | GENMASK(24, 22)) - 1,
>  	.fwname = "qcom/venus-1.8/venus.mbn",
>  };
>  
> @@ -592,7 +592,7 @@ static const struct venus_resources msm8996_res = {
>  	.vcodec_clks_num = 1,
>  	.max_load = 2563200,
>  	.hfi_version = HFI_VERSION_3XX,
> -	.dma_mask = 0xddc00000 - 1,
> +	.dma_mask = (GENMASK(31, 30) | GENMASK(28, 26) | GENMASK(24, 22)) - 1,
>  	.fwname = "qcom/venus-4.2/venus.mbn",
>  };
>  
> @@ -693,7 +693,7 @@ static const struct venus_resources sdm845_res = {
>  	.max_load = 3110400,	/* 4096x2160@90 */
>  	.hfi_version = HFI_VERSION_4XX,
>  	.vpu_version = VPU_VERSION_AR50,
> -	.dma_mask = 0xe0000000 - 1,
> +	.dma_mask = GENMASK(31, 29) - 1,
>  	.fwname = "qcom/venus-5.2/venus.mbn",
>  };
>  
> @@ -715,7 +715,7 @@ static const struct venus_resources sdm845_res_v2 = {
>  	.max_load = 3110400,	/* 4096x2160@90 */
>  	.hfi_version = HFI_VERSION_4XX,
>  	.vpu_version = VPU_VERSION_AR50,
> -	.dma_mask = 0xe0000000 - 1,
> +	.dma_mask = GENMASK(31, 29) - 1,
>  	.cp_start = 0,
>  	.cp_size = 0x70800000,
>  	.cp_nonpixel_start = 0x1000000,
> @@ -759,7 +759,7 @@ static const struct venus_resources sc7180_res = {
>  	.opp_pmdomain = pd_names_cx,
>  	.hfi_version = HFI_VERSION_4XX,
>  	.vpu_version = VPU_VERSION_AR50,
> -	.dma_mask = 0xe0000000 - 1,
> +	.dma_mask = GENMASK(31, 29) - 1,
>  	.cp_start = 0,
>  	.cp_size = 0x70800000,
>  	.cp_nonpixel_start = 0x1000000,
> @@ -814,7 +814,7 @@ static const struct venus_resources sm8250_res = {
>  	.hfi_version = HFI_VERSION_6XX,
>  	.vpu_version = VPU_VERSION_IRIS2,
>  	.num_vpp_pipes = 4,
> -	.dma_mask = 0xe0000000 - 1,
> +	.dma_mask = GENMASK(31, 29) - 1,
>  	.fwname = "qcom/vpu-1.0/venus.mbn",
>  };
>  
> @@ -868,7 +868,7 @@ static const struct venus_resources sc7280_res = {
>  	.hfi_version = HFI_VERSION_6XX,
>  	.vpu_version = VPU_VERSION_IRIS2_1,
>  	.num_vpp_pipes = 1,
> -	.dma_mask = 0xe0000000 - 1,
> +	.dma_mask = GENMASK(31, 29) - 1,
>  	.cp_start = 0,
>  	.cp_size = 0x25800000,
>  	.cp_nonpixel_start = 0x1000000,
> 
> From patchwork Fri Feb  9 21:09:56 2024
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> X-Patchwork-Submitter: Konrad Dybcio <konrad.dybcio@linaro.org>
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> From: Konrad Dybcio <konrad.dybcio@linaro.org>
> Date: Fri, 09 Feb 2024 22:09:56 +0100
> Subject: [PATCH v2 12/20] media: venus: core: Remove cp_start
> Precedence: bulk
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> In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
> To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
>  Vikash Garodia <quic_vgarodia@quicinc.com>,
>  Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
>  Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
>  Mauro Carvalho Chehab <mchehab@kernel.org>,
>  Dikshita Agarwal <quic_dikshita@quicinc.com>,
>  Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Marijn Suijten <marijn.suijten@somainline.org>,
>  Stanimir Varbanov <stanimir.varbanov@linaro.org>,
>  Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
>  linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
>  linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
> X-Mailer: b4 0.12.2
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>  pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms=
> 
> It's hardcoded to be zero. Always. Ever since msm-3.10. Or maybe
> even before. Remove it!
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/core.c     | 4 ----
>  drivers/media/platform/qcom/venus/core.h     | 1 -
>  drivers/media/platform/qcom/venus/firmware.c | 3 +--
>  3 files changed, 1 insertion(+), 7 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index 06b78e98cebd..65a9e815e6ba 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -647,7 +647,6 @@ static const struct venus_resources sdm660_res = {
>  	.vcodec_clks_num = 1,
>  	.max_load = 1036800,
>  	.hfi_version = HFI_VERSION_3XX,
> -	.cp_start = 0,
>  	.cp_size = 0x79000000,
>  	.cp_nonpixel_start = 0x1000000,
>  	.cp_nonpixel_size = 0x28000000,
> @@ -716,7 +715,6 @@ static const struct venus_resources sdm845_res_v2 = {
>  	.hfi_version = HFI_VERSION_4XX,
>  	.vpu_version = VPU_VERSION_AR50,
>  	.dma_mask = GENMASK(31, 29) - 1,
> -	.cp_start = 0,
>  	.cp_size = 0x70800000,
>  	.cp_nonpixel_start = 0x1000000,
>  	.cp_nonpixel_size = 0x24800000,
> @@ -760,7 +758,6 @@ static const struct venus_resources sc7180_res = {
>  	.hfi_version = HFI_VERSION_4XX,
>  	.vpu_version = VPU_VERSION_AR50,
>  	.dma_mask = GENMASK(31, 29) - 1,
> -	.cp_start = 0,
>  	.cp_size = 0x70800000,
>  	.cp_nonpixel_start = 0x1000000,
>  	.cp_nonpixel_size = 0x24800000,
> @@ -869,7 +866,6 @@ static const struct venus_resources sc7280_res = {
>  	.vpu_version = VPU_VERSION_IRIS2_1,
>  	.num_vpp_pipes = 1,
>  	.dma_mask = GENMASK(31, 29) - 1,
> -	.cp_start = 0,
>  	.cp_size = 0x25800000,
>  	.cp_nonpixel_start = 0x1000000,
>  	.cp_nonpixel_size = 0x24800000,
> diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
> index b1d0687d294f..9dacf533c7ad 100644
> --- a/drivers/media/platform/qcom/venus/core.h
> +++ b/drivers/media/platform/qcom/venus/core.h
> @@ -80,7 +80,6 @@ struct venus_resources {
>  	const enum vpu_version vpu_version;
>  	const u8 num_vpp_pipes;
>  	const u32 max_load;
> -	const u32 cp_start;
>  	const u32 cp_size;
>  	const u32 cp_nonpixel_start;
>  	const u32 cp_nonpixel_size;
> diff --git a/drivers/media/platform/qcom/venus/firmware.c b/drivers/media/platform/qcom/venus/firmware.c
> index fe7da2b30482..16e578780be7 100644
> --- a/drivers/media/platform/qcom/venus/firmware.c
> +++ b/drivers/media/platform/qcom/venus/firmware.c
> @@ -245,7 +245,6 @@ int venus_boot(struct venus_core *core)
>  	if (core->use_tz && res->cp_size) {
>  		/*
>  		 * Clues for porting using downstream data:
> -		 * cp_start = 0
>  		 * cp_size = venus_ns/virtual-addr-pool[0] - yes, address and not size!
>  		 *   This works, as the non-secure context bank is placed
>  		 *   contiguously right after the Content Protection region.
> @@ -253,7 +252,7 @@ int venus_boot(struct venus_core *core)
>  		 * cp_nonpixel_start = venus_sec_non_pixel/virtual-addr-pool[0]
>  		 * cp_nonpixel_size = venus_sec_non_pixel/virtual-addr-pool[1]
>  		 */
> -		ret = qcom_scm_mem_protect_video_var(res->cp_start,
> +		ret = qcom_scm_mem_protect_video_var(0,
>  						     res->cp_size,
>  						     res->cp_nonpixel_start,
>  						     res->cp_nonpixel_size);
> 
> From patchwork Fri Feb  9 21:09:57 2024
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> From: Konrad Dybcio <konrad.dybcio@linaro.org>
> Date: Fri, 09 Feb 2024 22:09:57 +0100
> Subject: [PATCH v2 13/20] media: venus: pm_helpers: Commonize core_power
> Precedence: bulk
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> To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
>  Vikash Garodia <quic_vgarodia@quicinc.com>,
>  Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
>  Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
>  Mauro Carvalho Chehab <mchehab@kernel.org>,
>  Dikshita Agarwal <quic_dikshita@quicinc.com>,
>  Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Marijn Suijten <marijn.suijten@somainline.org>,
>  Stanimir Varbanov <stanimir.varbanov@linaro.org>,
>  Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
>  linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
>  linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
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>  b=Rc3oc6RfokYXBJk1f5VshwRPBBeVoH5ZYiZDI19mfIPuqHWUxAWGIJErO/N+kVzj5BpiRntlt
>  hUdU68VY56RCM8bGHaW3bzgZxssatAJDZqV9XedjWazYriDhONQhN9g
> X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519;
>  pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms=
> 
> core_power_v4 called with num_resets = 0 and core->pmdomains[0] == NULL
> does exactly the same thing as core_power_v1. Unify them!
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/core.c       | 21 +++++++--------------
>  drivers/media/platform/qcom/venus/pm_helpers.c | 17 +----------------
>  drivers/media/platform/qcom/venus/pm_helpers.h |  2 +-
>  3 files changed, 9 insertions(+), 31 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index 65a9e815e6ba..9bfd2a30084b 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -477,18 +477,15 @@ static void venus_core_shutdown(struct platform_device *pdev)
>  static __maybe_unused int venus_runtime_suspend(struct device *dev)
>  {
>  	struct venus_core *core = dev_get_drvdata(dev);
> -	const struct venus_pm_ops *pm_ops = core->pm_ops;
>  	int ret;
>  
>  	ret = hfi_core_suspend(core);
>  	if (ret)
>  		return ret;
>  
> -	if (pm_ops->core_power) {
> -		ret = pm_ops->core_power(core, POWER_OFF);
> -		if (ret)
> -			return ret;
> -	}
> +	ret = venus_core_power(core, POWER_OFF);
> +	if (ret)
> +		return ret;
>  
>  	ret = icc_set_bw(core->cpucfg_path, 0, 0);
>  	if (ret)
> @@ -503,8 +500,7 @@ static __maybe_unused int venus_runtime_suspend(struct device *dev)
>  err_video_path:
>  	icc_set_bw(core->cpucfg_path, kbps_to_icc(1000), 0);
>  err_cpucfg_path:
> -	if (pm_ops->core_power)
> -		pm_ops->core_power(core, POWER_ON);
> +	venus_core_power(core, POWER_ON);
>  
>  	return ret;
>  }
> @@ -512,7 +508,6 @@ static __maybe_unused int venus_runtime_suspend(struct device *dev)
>  static __maybe_unused int venus_runtime_resume(struct device *dev)
>  {
>  	struct venus_core *core = dev_get_drvdata(dev);
> -	const struct venus_pm_ops *pm_ops = core->pm_ops;
>  	int ret;
>  
>  	ret = icc_set_bw(core->video_path, kbps_to_icc(20000), 0);
> @@ -523,11 +518,9 @@ static __maybe_unused int venus_runtime_resume(struct device *dev)
>  	if (ret)
>  		return ret;
>  
> -	if (pm_ops->core_power) {
> -		ret = pm_ops->core_power(core, POWER_ON);
> -		if (ret)
> -			return ret;
> -	}
> +	ret = venus_core_power(core, POWER_ON);
> +	if (ret)
> +		return ret;
>  
>  	return hfi_core_resume(core, false);
>  }
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
> index 8412deb68ed1..6f6de9ef1c6c 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.c
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c
> @@ -322,22 +322,9 @@ static void core_put_v1(struct venus_core *core)
>  {
>  }
>  
> -static int core_power_v1(struct venus_core *core, int on)
> -{
> -	int ret = 0;
> -
> -	if (on == POWER_ON)
> -		ret = core_clks_enable(core);
> -	else
> -		core_clks_disable(core);
> -
> -	return ret;
> -}
> -
>  static const struct venus_pm_ops pm_ops_v1 = {
>  	.core_get = venus_clks_get,
>  	.core_put = core_put_v1,
> -	.core_power = core_power_v1,
>  	.load_scale = load_scale_v1,
>  };
>  
> @@ -410,7 +397,6 @@ static int venc_power_v3(struct device *dev, int on)
>  static const struct venus_pm_ops pm_ops_v3 = {
>  	.core_get = venus_clks_get,
>  	.core_put = core_put_v1,
> -	.core_power = core_power_v1,
>  	.vdec_get = vdec_get_v3,
>  	.vdec_power = vdec_power_v3,
>  	.venc_get = venc_get_v3,
> @@ -990,7 +976,7 @@ static void core_put_v4(struct venus_core *core)
>  	vcodec_domains_put(core);
>  }
>  
> -static int core_power_v4(struct venus_core *core, int on)
> +int venus_core_power(struct venus_core *core, int on)
>  {
>  	struct device *dev = core->dev;
>  	struct device *pmctrl = core->pmdomains ?
> @@ -1138,7 +1124,6 @@ static int load_scale_v4(struct venus_inst *inst)
>  static const struct venus_pm_ops pm_ops_v4 = {
>  	.core_get = core_get_v4,
>  	.core_put = core_put_v4,
> -	.core_power = core_power_v4,
>  	.vdec_get = vdec_get_v4,
>  	.vdec_put = vdec_put_v4,
>  	.vdec_power = vdec_power_v4,
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.h b/drivers/media/platform/qcom/venus/pm_helpers.h
> index a492c50c5543..77db940a265c 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.h
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.h
> @@ -12,7 +12,6 @@ struct venus_core;
>  struct venus_pm_ops {
>  	int (*core_get)(struct venus_core *core);
>  	void (*core_put)(struct venus_core *core);
> -	int (*core_power)(struct venus_core *core, int on);
>  
>  	int (*vdec_get)(struct device *dev);
>  	void (*vdec_put)(struct device *dev);
> @@ -28,6 +27,7 @@ struct venus_pm_ops {
>  };
>  
>  const struct venus_pm_ops *venus_pm_get(enum hfi_version version);
> +int venus_core_power(struct venus_core *core, int on);
>  
>  static inline int venus_pm_load_scale(struct venus_inst *inst)
>  {
> 
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> From: Konrad Dybcio <konrad.dybcio@linaro.org>
> Date: Fri, 09 Feb 2024 22:09:58 +0100
> Subject: [PATCH v2 14/20] media: venus: pm_helpers: Remove pm_ops->core_put
> Precedence: bulk
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> In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
> To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
>  Vikash Garodia <quic_vgarodia@quicinc.com>,
>  Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
>  Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
>  Mauro Carvalho Chehab <mchehab@kernel.org>,
>  Dikshita Agarwal <quic_dikshita@quicinc.com>,
>  Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Marijn Suijten <marijn.suijten@somainline.org>,
>  Stanimir Varbanov <stanimir.varbanov@linaro.org>,
>  Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
>  linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
>  linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
> X-Mailer: b4 0.12.2
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> 
> Without an OPP table and with vcodec_pmdomains_num (so, v1, v3 and
> sdm845_legacy targets), core_put_v4 is a NOP, jut like core_put_v1.
> Unify them!
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/core.c       |  8 +++-----
>  drivers/media/platform/qcom/venus/pm_helpers.c | 17 +----------------
>  drivers/media/platform/qcom/venus/pm_helpers.h |  2 +-
>  3 files changed, 5 insertions(+), 22 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index 9bfd2a30084b..666adc5aac38 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -426,15 +426,14 @@ static int venus_probe(struct platform_device *pdev)
>  err_core_deinit:
>  	hfi_core_deinit(core, false);
>  err_core_put:
> -	if (core->pm_ops->core_put)
> -		core->pm_ops->core_put(core);
> +	vcodec_domains_put(core);
> +
>  	return ret;
>  }
>  
>  static void venus_remove(struct platform_device *pdev)
>  {
>  	struct venus_core *core = platform_get_drvdata(pdev);
> -	const struct venus_pm_ops *pm_ops = core->pm_ops;
>  	struct device *dev = core->dev;
>  	int ret;
>  
> @@ -452,8 +451,7 @@ static void venus_remove(struct platform_device *pdev)
>  	pm_runtime_put_sync(dev);
>  	pm_runtime_disable(dev);
>  
> -	if (pm_ops->core_put)
> -		pm_ops->core_put(core);
> +	vcodec_domains_put(core);
>  
>  	v4l2_device_unregister(&core->v4l2_dev);
>  
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
> index 6f6de9ef1c6c..32f9ccfa9d8a 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.c
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c
> @@ -318,13 +318,8 @@ static int load_scale_v1(struct venus_inst *inst)
>  	return ret;
>  }
>  
> -static void core_put_v1(struct venus_core *core)
> -{
> -}
> -
>  static const struct venus_pm_ops pm_ops_v1 = {
>  	.core_get = venus_clks_get,
> -	.core_put = core_put_v1,
>  	.load_scale = load_scale_v1,
>  };
>  
> @@ -396,7 +391,6 @@ static int venc_power_v3(struct device *dev, int on)
>  
>  static const struct venus_pm_ops pm_ops_v3 = {
>  	.core_get = venus_clks_get,
> -	.core_put = core_put_v1,
>  	.vdec_get = vdec_get_v3,
>  	.vdec_power = vdec_power_v3,
>  	.venc_get = venc_get_v3,
> @@ -893,7 +887,7 @@ static int vcodec_domains_get(struct venus_core *core)
>  	return ret;
>  }
>  
> -static void vcodec_domains_put(struct venus_core *core)
> +void vcodec_domains_put(struct venus_core *core)
>  {
>  	dev_pm_domain_detach_list(core->pmdomains);
>  
> @@ -968,14 +962,6 @@ static int core_get_v4(struct venus_core *core)
>  	return 0;
>  }
>  
> -static void core_put_v4(struct venus_core *core)
> -{
> -	if (legacy_binding)
> -		return;
> -
> -	vcodec_domains_put(core);
> -}
> -
>  int venus_core_power(struct venus_core *core, int on)
>  {
>  	struct device *dev = core->dev;
> @@ -1123,7 +1109,6 @@ static int load_scale_v4(struct venus_inst *inst)
>  
>  static const struct venus_pm_ops pm_ops_v4 = {
>  	.core_get = core_get_v4,
> -	.core_put = core_put_v4,
>  	.vdec_get = vdec_get_v4,
>  	.vdec_put = vdec_put_v4,
>  	.vdec_power = vdec_power_v4,
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.h b/drivers/media/platform/qcom/venus/pm_helpers.h
> index 77db940a265c..3014b39aa6e3 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.h
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.h
> @@ -11,7 +11,6 @@ struct venus_core;
>  
>  struct venus_pm_ops {
>  	int (*core_get)(struct venus_core *core);
> -	void (*core_put)(struct venus_core *core);
>  
>  	int (*vdec_get)(struct device *dev);
>  	void (*vdec_put)(struct device *dev);
> @@ -28,6 +27,7 @@ struct venus_pm_ops {
>  
>  const struct venus_pm_ops *venus_pm_get(enum hfi_version version);
>  int venus_core_power(struct venus_core *core, int on);
> +void vcodec_domains_put(struct venus_core *core);
>  
>  static inline int venus_pm_load_scale(struct venus_inst *inst)
>  {
> 
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> From: Konrad Dybcio <konrad.dybcio@linaro.org>
> Date: Fri, 09 Feb 2024 22:09:59 +0100
> Subject: [PATCH v2 15/20] media: venus: core: Define a pointer to core->res
> Precedence: bulk
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> In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
> To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
>  Vikash Garodia <quic_vgarodia@quicinc.com>,
>  Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
>  Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
>  Mauro Carvalho Chehab <mchehab@kernel.org>,
>  Dikshita Agarwal <quic_dikshita@quicinc.com>,
>  Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Marijn Suijten <marijn.suijten@somainline.org>,
>  Stanimir Varbanov <stanimir.varbanov@linaro.org>,
>  Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
>  linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
>  linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
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> 
> To make the code more concise, define a new variable 'res' pointing to
> the abundantly referenced core->res.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/core.c | 11 +++++++----
>  1 file changed, 7 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index 666adc5aac38..70c3c9dc49c6 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -285,6 +285,7 @@ static irqreturn_t venus_isr_thread(int irq, void *dev_id)
>  
>  static int venus_probe(struct platform_device *pdev)
>  {
> +	const struct venus_resources *res;
>  	struct device *dev = &pdev->dev;
>  	struct venus_core *core;
>  	int i, ret;
> @@ -315,9 +316,11 @@ static int venus_probe(struct platform_device *pdev)
>  	if (!core->res)
>  		return -ENODEV;
>  
> +	res = core->res;
> +
>  	mutex_init(&core->pm_lock);
>  
> -	core->pm_ops = venus_pm_get(core->res->hfi_version);
> +	core->pm_ops = venus_pm_get(res->hfi_version);
>  	if (!core->pm_ops)
>  		return -ENODEV;
>  
> @@ -325,8 +328,8 @@ static int venus_probe(struct platform_device *pdev)
>  	if (ret)
>  		return ret;
>  
> -	for (i = 0; i < core->res->resets_num; i++) {
> -		core->resets[i] = devm_reset_control_get_exclusive(dev, core->res->resets[i]);
> +	for (i = 0; i < res->resets_num; i++) {
> +		core->resets[i] = devm_reset_control_get_exclusive(dev, res->resets[i]);
>  		if (IS_ERR(core->resets[i]))
>  			return PTR_ERR(core->resets[i]);
>  	}
> @@ -337,7 +340,7 @@ static int venus_probe(struct platform_device *pdev)
>  			return ret;
>  	}
>  
> -	ret = dma_set_mask_and_coherent(dev, core->res->dma_mask);
> +	ret = dma_set_mask_and_coherent(dev, res->dma_mask);
>  	if (ret)
>  		goto err_core_put;
>  
> 
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> From: Konrad Dybcio <konrad.dybcio@linaro.org>
> Date: Fri, 09 Feb 2024 22:10:00 +0100
> Subject: [PATCH v2 16/20] media: venus: pm_helpers: Simplify vcodec clock
>  handling
> Precedence: bulk
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> In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
> To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
>  Vikash Garodia <quic_vgarodia@quicinc.com>,
>  Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
>  Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
>  Mauro Carvalho Chehab <mchehab@kernel.org>,
>  Dikshita Agarwal <quic_dikshita@quicinc.com>,
>  Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Marijn Suijten <marijn.suijten@somainline.org>,
>  Stanimir Varbanov <stanimir.varbanov@linaro.org>,
>  Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
>  linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
>  linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
> X-Mailer: b4 0.12.2
> X-Developer-Signature: v=1; a=ed25519-sha256; t=1707512986; l=13452;
>  i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id;
>  bh=vLhLhf+CEVi6B2XJaAnvAcQ3XwKGsnZUrFlDvOw21nc=;
>  b=yhMc+HUWGyogB5zChvw1fSFjZ32bTQVH+w4auxc+uJf6IdWacMSVM3VvwjxoaKTVSEd7ZaVfJ
>  giBWMyzn9ndDfdFOMGLfjjUnU86vMCSyjWD0yhXVsF/aRloJaE4DQT3
> X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519;
>  pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms=
> 
> Currently the infrastructure is set up for vast expandability, but
> it's far too complex for what is just 0-2 clocks. Categorize the
> clocks and simplify their getting.
> 
> One notable change is that vcodec clocks are switched to use
> devm_clk_get_optional, which will let us commonize the code further
> while leaving the burden of figuring out which SoCs need codec-specific
> clocks and which don't to the bindings checker.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/core.c       |  18 ----
>  drivers/media/platform/qcom/venus/core.h       |   9 +-
>  drivers/media/platform/qcom/venus/pm_helpers.c | 129 +++++++++++++------------
>  3 files changed, 69 insertions(+), 87 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index 70c3c9dc49c6..680674dd0d68 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -581,9 +581,6 @@ static const struct venus_resources msm8996_res = {
>  	.reg_tbl_size = ARRAY_SIZE(msm8996_reg_preset),
>  	.clks = {"core", "iface", "bus", "mbus" },
>  	.clks_num = 4,
> -	.vcodec0_clks = { "core" },
> -	.vcodec1_clks = { "core" },
> -	.vcodec_clks_num = 1,
>  	.max_load = 2563200,
>  	.hfi_version = HFI_VERSION_3XX,
>  	.dma_mask = (GENMASK(31, 30) | GENMASK(28, 26) | GENMASK(24, 22)) - 1,
> @@ -636,9 +633,6 @@ static const struct venus_resources sdm660_res = {
>  	.bw_tbl_dec_size = ARRAY_SIZE(sdm660_bw_table_dec),
>  	.clks = {"core", "iface", "bus", "bus_throttle" },
>  	.clks_num = 4,
> -	.vcodec0_clks = { "vcodec0_core" },
> -	.vcodec1_clks = { "vcodec0_core" },
> -	.vcodec_clks_num = 1,
>  	.max_load = 1036800,
>  	.hfi_version = HFI_VERSION_3XX,
>  	.cp_size = 0x79000000,
> @@ -680,9 +674,6 @@ static const struct venus_resources sdm845_res = {
>  	.bw_tbl_dec_size = ARRAY_SIZE(sdm845_bw_table_dec),
>  	.clks = {"core", "iface", "bus" },
>  	.clks_num = 3,
> -	.vcodec0_clks = { "core", "bus" },
> -	.vcodec1_clks = { "core", "bus" },
> -	.vcodec_clks_num = 2,
>  	.max_load = 3110400,	/* 4096x2160@90 */
>  	.hfi_version = HFI_VERSION_4XX,
>  	.vpu_version = VPU_VERSION_AR50,
> @@ -699,9 +690,6 @@ static const struct venus_resources sdm845_res_v2 = {
>  	.bw_tbl_dec_size = ARRAY_SIZE(sdm845_bw_table_dec),
>  	.clks = {"core", "iface", "bus" },
>  	.clks_num = 3,
> -	.vcodec0_clks = { "vcodec0_core", "vcodec0_bus" },
> -	.vcodec1_clks = { "vcodec1_core", "vcodec1_bus" },
> -	.vcodec_clks_num = 2,
>  	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0", "vcodec1" },
>  	.vcodec_pmdomains_num = 3,
>  	.opp_pmdomain = pd_names_cx,
> @@ -744,8 +732,6 @@ static const struct venus_resources sc7180_res = {
>  	.bw_tbl_dec_size = ARRAY_SIZE(sc7180_bw_table_dec),
>  	.clks = {"core", "iface", "bus" },
>  	.clks_num = 3,
> -	.vcodec0_clks = { "vcodec0_core", "vcodec0_bus" },
> -	.vcodec_clks_num = 2,
>  	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
>  	.vcodec_pmdomains_num = 2,
>  	.opp_pmdomain = pd_names_cx,
> @@ -796,8 +782,6 @@ static const struct venus_resources sm8250_res = {
>  	.clks_num = 2,
>  	.resets = { "bus", "core" },
>  	.resets_num = 2,
> -	.vcodec0_clks = { "vcodec0_core" },
> -	.vcodec_clks_num = 1,
>  	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
>  	.vcodec_pmdomains_num = 2,
>  	.opp_pmdomain = pd_names_mx,
> @@ -851,8 +835,6 @@ static const struct venus_resources sc7280_res = {
>  	.ubwc_conf = &sc7280_ubwc_config,
>  	.clks = {"core", "bus", "iface"},
>  	.clks_num = 3,
> -	.vcodec0_clks = {"vcodec_core", "vcodec_bus"},
> -	.vcodec_clks_num = 2,
>  	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
>  	.vcodec_pmdomains_num = 2,
>  	.opp_pmdomain = pd_names_cx,
> diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
> index 9dacf533c7ad..6ecaa3e38cac 100644
> --- a/drivers/media/platform/qcom/venus/core.h
> +++ b/drivers/media/platform/qcom/venus/core.h
> @@ -24,9 +24,10 @@
>  #define VDBGFW	"VenusFW  : "
>  
>  #define VIDC_CLKS_NUM_MAX		4
> -#define VIDC_VCODEC_CLKS_NUM_MAX	2
>  #define VIDC_RESETS_NUM_MAX		2
>  
> +#define MAX_NUM_VCODECS			2
> +
>  extern int venus_fw_debug;
>  
>  struct freq_tbl {
> @@ -68,8 +69,6 @@ struct venus_resources {
>  	const struct hfi_ubwc_config * const ubwc_conf;
>  	const char * const clks[VIDC_CLKS_NUM_MAX];
>  	const unsigned int clks_num;
> -	const char * const vcodec0_clks[VIDC_VCODEC_CLKS_NUM_MAX];
> -	const char * const vcodec1_clks[VIDC_VCODEC_CLKS_NUM_MAX];
>  	const unsigned int vcodec_clks_num;
>  	const char * const *vcodec_pmdomains;
>  	const unsigned int vcodec_pmdomains_num;
> @@ -176,8 +175,8 @@ struct venus_core {
>  	void __iomem *aon_base;
>  	int irq;
>  	struct clk *clks[VIDC_CLKS_NUM_MAX];
> -	struct clk *vcodec0_clks[VIDC_VCODEC_CLKS_NUM_MAX];
> -	struct clk *vcodec1_clks[VIDC_VCODEC_CLKS_NUM_MAX];
> +	struct clk *vcodec_core_clks[MAX_NUM_VCODECS];
> +	struct clk *vcodec_bus_clks[MAX_NUM_VCODECS];
>  	struct icc_path *video_path;
>  	struct icc_path *cpucfg_path;
>  	bool has_opp_table;
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
> index 32f9ccfa9d8a..a292c788ffba 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.c
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c
> @@ -110,67 +110,74 @@ static void core_clks_disable(struct venus_core *core)
>  
>  static int core_clks_set_rate(struct venus_core *core, unsigned long freq)
>  {
> -	int ret;
> +	int i, ret;
>  
>  	ret = dev_pm_opp_set_rate(core->dev, freq);
>  	if (ret)
>  		return ret;
>  
> -	ret = clk_set_rate(core->vcodec0_clks[0], freq);
> -	if (ret)
> -		return ret;
> -
> -	ret = clk_set_rate(core->vcodec1_clks[0], freq);
> -	if (ret)
> -		return ret;
> +	for (i = 0; i < MAX_NUM_VCODECS; i++) {
> +		ret = clk_set_rate(core->vcodec_core_clks[i], freq);
> +		if (ret)
> +			return ret;
> +	}
>  
>  	return 0;
>  }
>  
> -static int vcodec_clks_get(struct venus_core *core, struct device *dev,
> -			   struct clk **clks, const char * const *id)
> +static int vcodec_clks_get(struct venus_core *core, struct device *dev, u8 id)
>  {
> -	const struct venus_resources *res = core->res;
> -	unsigned int i;
> +	char buf[13] = { 0 }; /* vcodecX_core\0 */
>  
> -	for (i = 0; i < res->vcodec_clks_num; i++) {
> -		if (!id[i])
> -			continue;
> -		clks[i] = devm_clk_get(dev, id[i]);
> -		if (IS_ERR(clks[i]))
> -			return PTR_ERR(clks[i]);
> +	/* Best we can do is 2 cores */
> +	if (id > MAX_NUM_VCODECS - 1) {
> +		dev_err(dev, "Got impossible vcodec id %u\n", id);
> +		return -EINVAL;
> +	};
> +
> +	snprintf(buf, sizeof(buf), "vcodec%u_core", id);
> +
> +	/* First try the non-legacy name */
> +	core->vcodec_core_clks[id] = devm_clk_get_optional(dev, buf);
> +	if (IS_ERR(core->vcodec_core_clks[id])) {
> +		/* Try again, with the legacy name */
> +		core->vcodec_core_clks[id] = devm_clk_get_optional(dev, "core");
> +		if (IS_ERR(core->vcodec_core_clks[id]))
> +			return PTR_ERR(core->vcodec_core_clks[id]);
> +	}
> +
> +	memset(buf, 0, sizeof(buf));
> +	snprintf(buf, sizeof(buf), "vcodec%u_bus", id);
> +
> +	core->vcodec_bus_clks[id] = devm_clk_get_optional(dev, buf);
> +	if (IS_ERR(core->vcodec_bus_clks[id])) {
> +		core->vcodec_bus_clks[id] = devm_clk_get_optional(dev, "bus");
> +		if (IS_ERR(core->vcodec_bus_clks[id]))
> +			return PTR_ERR(core->vcodec_bus_clks[id]);
>  	}
>  
>  	return 0;
>  }
>  
> -static int vcodec_clks_enable(struct venus_core *core, struct clk **clks)
> +static int vcodec_clks_enable(struct venus_core *core, u8 id)
>  {
> -	const struct venus_resources *res = core->res;
> -	unsigned int i;
>  	int ret;
>  
> -	for (i = 0; i < res->vcodec_clks_num; i++) {
> -		ret = clk_prepare_enable(clks[i]);
> -		if (ret)
> -			goto err;
> -	}
> +	ret = clk_prepare_enable(core->vcodec_core_clks[id]);
> +	if (ret)
> +		return ret;
>  
> -	return 0;
> -err:
> -	while (i--)
> -		clk_disable_unprepare(clks[i]);
> +	ret = clk_prepare_enable(core->vcodec_bus_clks[id]);
> +	if (ret)
> +		clk_disable_unprepare(core->vcodec_core_clks[id]);
>  
>  	return ret;
>  }
>  
> -static void vcodec_clks_disable(struct venus_core *core, struct clk **clks)
> +static void vcodec_clks_disable(struct venus_core *core, u8 id)
>  {
> -	const struct venus_resources *res = core->res;
> -	unsigned int i = res->vcodec_clks_num;
> -
> -	while (i--)
> -		clk_disable_unprepare(clks[i]);
> +	clk_disable_unprepare(core->vcodec_bus_clks[id]);
> +	clk_disable_unprepare(core->vcodec_core_clks[id]);
>  }
>  
>  static u32 load_per_instance(struct venus_inst *inst)
> @@ -343,8 +350,7 @@ static int vdec_get_v3(struct device *dev)
>  {
>  	struct venus_core *core = dev_get_drvdata(dev);
>  
> -	return vcodec_clks_get(core, dev, core->vcodec0_clks,
> -			       core->res->vcodec0_clks);
> +	return vcodec_clks_get(core, dev, 0);
>  }
>  
>  static int vdec_power_v3(struct device *dev, int on)
> @@ -355,9 +361,9 @@ static int vdec_power_v3(struct device *dev, int on)
>  	vcodec_control_v3(core, VIDC_SESSION_TYPE_DEC, true);
>  
>  	if (on == POWER_ON)
> -		ret = vcodec_clks_enable(core, core->vcodec0_clks);
> +		ret = vcodec_clks_enable(core, 0);
>  	else
> -		vcodec_clks_disable(core, core->vcodec0_clks);
> +		vcodec_clks_disable(core, 0);
>  
>  	vcodec_control_v3(core, VIDC_SESSION_TYPE_DEC, false);
>  
> @@ -368,8 +374,7 @@ static int venc_get_v3(struct device *dev)
>  {
>  	struct venus_core *core = dev_get_drvdata(dev);
>  
> -	return vcodec_clks_get(core, dev, core->vcodec1_clks,
> -			       core->res->vcodec1_clks);
> +	return vcodec_clks_get(core, dev, 1);
>  }
>  
>  static int venc_power_v3(struct device *dev, int on)
> @@ -380,9 +385,9 @@ static int venc_power_v3(struct device *dev, int on)
>  	vcodec_control_v3(core, VIDC_SESSION_TYPE_ENC, true);
>  
>  	if (on == POWER_ON)
> -		ret = vcodec_clks_enable(core, core->vcodec1_clks);
> +		ret = vcodec_clks_enable(core, 1);
>  	else
> -		vcodec_clks_disable(core, core->vcodec1_clks);
> +		vcodec_clks_disable(core, 1);
>  
>  	vcodec_control_v3(core, VIDC_SESSION_TYPE_ENC, false);
>  
> @@ -441,7 +446,7 @@ static int poweroff_coreid(struct venus_core *core, unsigned int coreid_mask)
>  		if (ret)
>  			return ret;
>  
> -		vcodec_clks_disable(core, core->vcodec0_clks);
> +		vcodec_clks_disable(core, 0);
>  
>  		ret = vcodec_control_v4(core, VIDC_CORE_ID_1, false);
>  		if (ret)
> @@ -457,7 +462,7 @@ static int poweroff_coreid(struct venus_core *core, unsigned int coreid_mask)
>  		if (ret)
>  			return ret;
>  
> -		vcodec_clks_disable(core, core->vcodec1_clks);
> +		vcodec_clks_disable(core, 1);
>  
>  		ret = vcodec_control_v4(core, VIDC_CORE_ID_2, false);
>  		if (ret)
> @@ -484,7 +489,7 @@ static int poweron_coreid(struct venus_core *core, unsigned int coreid_mask)
>  		if (ret)
>  			return ret;
>  
> -		ret = vcodec_clks_enable(core, core->vcodec0_clks);
> +		ret = vcodec_clks_enable(core, 0);
>  		if (ret)
>  			return ret;
>  
> @@ -502,7 +507,7 @@ static int poweron_coreid(struct venus_core *core, unsigned int coreid_mask)
>  		if (ret)
>  			return ret;
>  
> -		ret = vcodec_clks_enable(core, core->vcodec1_clks);
> +		ret = vcodec_clks_enable(core, 1);
>  		if (ret)
>  			return ret;
>  
> @@ -763,20 +768,18 @@ static int vdec_get_v4(struct device *dev)
>  	if (!legacy_binding)
>  		return 0;
>  
> -	return vcodec_clks_get(core, dev, core->vcodec0_clks,
> -			       core->res->vcodec0_clks);
> +	return vcodec_clks_get(core, dev, 0);
>  }
>  
>  static void vdec_put_v4(struct device *dev)
>  {
>  	struct venus_core *core = dev_get_drvdata(dev);
> -	unsigned int i;
>  
>  	if (!legacy_binding)
>  		return;
>  
> -	for (i = 0; i < core->res->vcodec_clks_num; i++)
> -		core->vcodec0_clks[i] = NULL;
> +	core->vcodec_core_clks[0] = NULL;
> +	core->vcodec_bus_clks[0] = NULL;
>  }
>  
>  static int vdec_power_v4(struct device *dev, int on)
> @@ -792,9 +795,9 @@ static int vdec_power_v4(struct device *dev, int on)
>  		return ret;
>  
>  	if (on == POWER_ON)
> -		ret = vcodec_clks_enable(core, core->vcodec0_clks);
> +		ret = vcodec_clks_enable(core, 0);
>  	else
> -		vcodec_clks_disable(core, core->vcodec0_clks);
> +		vcodec_clks_disable(core, 0);
>  
>  	vcodec_control_v4(core, VIDC_CORE_ID_1, false);
>  
> @@ -808,20 +811,18 @@ static int venc_get_v4(struct device *dev)
>  	if (!legacy_binding)
>  		return 0;
>  
> -	return vcodec_clks_get(core, dev, core->vcodec1_clks,
> -			       core->res->vcodec1_clks);
> +	return vcodec_clks_get(core, dev, 1);
>  }
>  
>  static void venc_put_v4(struct device *dev)
>  {
>  	struct venus_core *core = dev_get_drvdata(dev);
> -	unsigned int i;
>  
>  	if (!legacy_binding)
>  		return;
>  
> -	for (i = 0; i < core->res->vcodec_clks_num; i++)
> -		core->vcodec1_clks[i] = NULL;
> +	core->vcodec_core_clks[1] = NULL;
> +	core->vcodec_bus_clks[1] = NULL;
>  }
>  
>  static int venc_power_v4(struct device *dev, int on)
> @@ -837,9 +838,9 @@ static int venc_power_v4(struct device *dev, int on)
>  		return ret;
>  
>  	if (on == POWER_ON)
> -		ret = vcodec_clks_enable(core, core->vcodec1_clks);
> +		ret = vcodec_clks_enable(core, 1);
>  	else
> -		vcodec_clks_disable(core, core->vcodec1_clks);
> +		vcodec_clks_disable(core, 1);
>  
>  	vcodec_control_v4(core, VIDC_CORE_ID_2, false);
>  
> @@ -934,11 +935,11 @@ static int core_get_v4(struct venus_core *core)
>  
>  	dev_info(dev, "%s legacy binding\n", legacy_binding ? "" : "non");
>  
> -	ret = vcodec_clks_get(core, dev, core->vcodec0_clks, res->vcodec0_clks);
> +	ret = vcodec_clks_get(core, dev, 0);
>  	if (ret)
>  		return ret;
>  
> -	ret = vcodec_clks_get(core, dev, core->vcodec1_clks, res->vcodec1_clks);
> +	ret = vcodec_clks_get(core, dev, 1);
>  	if (ret)
>  		return ret;
>  
> 
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> From: Konrad Dybcio <konrad.dybcio@linaro.org>
> Date: Fri, 09 Feb 2024 22:10:01 +0100
> Subject: [PATCH v2 17/20] media: venus: pm_helpers: Commonize getting
>  clocks and GenPDs
> Precedence: bulk
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> In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
> To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
>  Vikash Garodia <quic_vgarodia@quicinc.com>,
>  Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
>  Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
>  Mauro Carvalho Chehab <mchehab@kernel.org>,
>  Dikshita Agarwal <quic_dikshita@quicinc.com>,
>  Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Marijn Suijten <marijn.suijten@somainline.org>,
>  Stanimir Varbanov <stanimir.varbanov@linaro.org>,
>  Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
>  linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
>  linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
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>  i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id;
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>  pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms=
> 
> As has been the story with the past few commits, much of the resource
> acquisition logic is totally identical between different generations
> and there's no good reason to invent a new function for each one.
> 
> Commonize core_get() and rename it to venus_get_resources() to be more
> meaningful.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/core.c       | 8 +++-----
>  drivers/media/platform/qcom/venus/pm_helpers.c | 5 +----
>  drivers/media/platform/qcom/venus/pm_helpers.h | 3 +--
>  3 files changed, 5 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index 680674dd0d68..873affe17537 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -334,11 +334,9 @@ static int venus_probe(struct platform_device *pdev)
>  			return PTR_ERR(core->resets[i]);
>  	}
>  
> -	if (core->pm_ops->core_get) {
> -		ret = core->pm_ops->core_get(core);
> -		if (ret)
> -			return ret;
> -	}
> +	ret = venus_get_resources(core);
> +	if (ret)
> +		return ret;
>  
>  	ret = dma_set_mask_and_coherent(dev, res->dma_mask);
>  	if (ret)
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
> index a292c788ffba..1cbcffbc29af 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.c
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c
> @@ -326,7 +326,6 @@ static int load_scale_v1(struct venus_inst *inst)
>  }
>  
>  static const struct venus_pm_ops pm_ops_v1 = {
> -	.core_get = venus_clks_get,
>  	.load_scale = load_scale_v1,
>  };
>  
> @@ -395,7 +394,6 @@ static int venc_power_v3(struct device *dev, int on)
>  }
>  
>  static const struct venus_pm_ops pm_ops_v3 = {
> -	.core_get = venus_clks_get,
>  	.vdec_get = vdec_get_v3,
>  	.vdec_power = vdec_power_v3,
>  	.venc_get = venc_get_v3,
> @@ -920,7 +918,7 @@ static int core_resets_reset(struct venus_core *core)
>  	return ret;
>  }
>  
> -static int core_get_v4(struct venus_core *core)
> +int venus_get_resources(struct venus_core *core)
>  {
>  	struct device *dev = core->dev;
>  	const struct venus_resources *res = core->res;
> @@ -1109,7 +1107,6 @@ static int load_scale_v4(struct venus_inst *inst)
>  }
>  
>  static const struct venus_pm_ops pm_ops_v4 = {
> -	.core_get = core_get_v4,
>  	.vdec_get = vdec_get_v4,
>  	.vdec_put = vdec_put_v4,
>  	.vdec_power = vdec_power_v4,
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.h b/drivers/media/platform/qcom/venus/pm_helpers.h
> index 3014b39aa6e3..7a55a55029f3 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.h
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.h
> @@ -10,8 +10,6 @@ struct venus_core;
>  #define POWER_OFF	0
>  
>  struct venus_pm_ops {
> -	int (*core_get)(struct venus_core *core);
> -
>  	int (*vdec_get)(struct device *dev);
>  	void (*vdec_put)(struct device *dev);
>  	int (*vdec_power)(struct device *dev, int on);
> @@ -28,6 +26,7 @@ struct venus_pm_ops {
>  const struct venus_pm_ops *venus_pm_get(enum hfi_version version);
>  int venus_core_power(struct venus_core *core, int on);
>  void vcodec_domains_put(struct venus_core *core);
> +int venus_get_resources(struct venus_core *core);
>  
>  static inline int venus_pm_load_scale(struct venus_inst *inst)
>  {
> 
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> From: Konrad Dybcio <konrad.dybcio@linaro.org>
> Date: Fri, 09 Feb 2024 22:10:02 +0100
> Subject: [PATCH v2 18/20] media: venus: pm_helpers: Commonize vdec_get()
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> To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
>  Vikash Garodia <quic_vgarodia@quicinc.com>,
>  Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
>  Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
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>  Dikshita Agarwal <quic_dikshita@quicinc.com>,
>  Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Marijn Suijten <marijn.suijten@somainline.org>,
>  Stanimir Varbanov <stanimir.varbanov@linaro.org>,
>  Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
>  linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
>  linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
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> X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519;
>  pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms=
> 
> This function can be very easily commonized between the supported gens.
> Do so!
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/pm_helpers.c | 22 ++--------------------
>  drivers/media/platform/qcom/venus/pm_helpers.h |  2 +-
>  drivers/media/platform/qcom/venus/vdec.c       |  9 +++++++--
>  3 files changed, 10 insertions(+), 23 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
> index 1cbcffbc29af..cf0794acf5d0 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.c
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c
> @@ -125,7 +125,7 @@ static int core_clks_set_rate(struct venus_core *core, unsigned long freq)
>  	return 0;
>  }
>  
> -static int vcodec_clks_get(struct venus_core *core, struct device *dev, u8 id)
> +int vcodec_clks_get(struct venus_core *core, struct device *dev, u8 id)
>  {
>  	char buf[13] = { 0 }; /* vcodecX_core\0 */
>  
> @@ -158,6 +158,7 @@ static int vcodec_clks_get(struct venus_core *core, struct device *dev, u8 id)
>  
>  	return 0;
>  }
> +EXPORT_SYMBOL_GPL(vcodec_clks_get);
>  
>  static int vcodec_clks_enable(struct venus_core *core, u8 id)
>  {
> @@ -345,13 +346,6 @@ vcodec_control_v3(struct venus_core *core, u32 session_type, bool enable)
>  		writel(1, ctrl);
>  }
>  
> -static int vdec_get_v3(struct device *dev)
> -{
> -	struct venus_core *core = dev_get_drvdata(dev);
> -
> -	return vcodec_clks_get(core, dev, 0);
> -}
> -
>  static int vdec_power_v3(struct device *dev, int on)
>  {
>  	struct venus_core *core = dev_get_drvdata(dev);
> @@ -394,7 +388,6 @@ static int venc_power_v3(struct device *dev, int on)
>  }
>  
>  static const struct venus_pm_ops pm_ops_v3 = {
> -	.vdec_get = vdec_get_v3,
>  	.vdec_power = vdec_power_v3,
>  	.venc_get = venc_get_v3,
>  	.venc_power = venc_power_v3,
> @@ -759,16 +752,6 @@ static int coreid_power_v4(struct venus_inst *inst, int on)
>  	return ret;
>  }
>  
> -static int vdec_get_v4(struct device *dev)
> -{
> -	struct venus_core *core = dev_get_drvdata(dev);
> -
> -	if (!legacy_binding)
> -		return 0;
> -
> -	return vcodec_clks_get(core, dev, 0);
> -}
> -
>  static void vdec_put_v4(struct device *dev)
>  {
>  	struct venus_core *core = dev_get_drvdata(dev);
> @@ -1107,7 +1090,6 @@ static int load_scale_v4(struct venus_inst *inst)
>  }
>  
>  static const struct venus_pm_ops pm_ops_v4 = {
> -	.vdec_get = vdec_get_v4,
>  	.vdec_put = vdec_put_v4,
>  	.vdec_power = vdec_power_v4,
>  	.venc_get = venc_get_v4,
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.h b/drivers/media/platform/qcom/venus/pm_helpers.h
> index 7a55a55029f3..4afc57dac865 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.h
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.h
> @@ -10,7 +10,6 @@ struct venus_core;
>  #define POWER_OFF	0
>  
>  struct venus_pm_ops {
> -	int (*vdec_get)(struct device *dev);
>  	void (*vdec_put)(struct device *dev);
>  	int (*vdec_power)(struct device *dev, int on);
>  
> @@ -27,6 +26,7 @@ const struct venus_pm_ops *venus_pm_get(enum hfi_version version);
>  int venus_core_power(struct venus_core *core, int on);
>  void vcodec_domains_put(struct venus_core *core);
>  int venus_get_resources(struct venus_core *core);
> +int vcodec_clks_get(struct venus_core *core, struct device *dev, u8 id);
>  
>  static inline int venus_pm_load_scale(struct venus_inst *inst)
>  {
> diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c
> index 29130a9441e7..d127311100cd 100644
> --- a/drivers/media/platform/qcom/venus/vdec.c
> +++ b/drivers/media/platform/qcom/venus/vdec.c
> @@ -1788,8 +1788,13 @@ static int vdec_probe(struct platform_device *pdev)
>  
>  	platform_set_drvdata(pdev, core);
>  
> -	if (core->pm_ops->vdec_get) {
> -		ret = core->pm_ops->vdec_get(dev);
> +	/*
> +	 * If the vcodec core clock is missing by now, it either doesn't exist
> +	 * (8916) or deprecated bindings with pre-assigned core functions and
> +	 * resources under the decoder node are in use.
> +	 */
> +	if (!core->vcodec_core_clks[0]) {
> +		ret = vcodec_clks_get(core, dev, 0);
>  		if (ret)
>  			return ret;
>  	}
> 
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> From: Konrad Dybcio <konrad.dybcio@linaro.org>
> Date: Fri, 09 Feb 2024 22:10:03 +0100
> Subject: [PATCH v2 19/20] media: venus: pm_helpers: Commonize venc_get()
> Precedence: bulk
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> In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
> To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
>  Vikash Garodia <quic_vgarodia@quicinc.com>,
>  Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
>  Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
>  Mauro Carvalho Chehab <mchehab@kernel.org>,
>  Dikshita Agarwal <quic_dikshita@quicinc.com>,
>  Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Marijn Suijten <marijn.suijten@somainline.org>,
>  Stanimir Varbanov <stanimir.varbanov@linaro.org>,
>  Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
>  linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
>  linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
> X-Mailer: b4 0.12.2
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>  pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms=
> 
> This function can be very easily commonized between the supported gens.
> Do so!
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/pm_helpers.c | 19 -------------------
>  drivers/media/platform/qcom/venus/pm_helpers.h |  1 -
>  drivers/media/platform/qcom/venus/venc.c       |  9 +++++++--
>  3 files changed, 7 insertions(+), 22 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
> index cf0794acf5d0..9df8f2292c17 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.c
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c
> @@ -363,13 +363,6 @@ static int vdec_power_v3(struct device *dev, int on)
>  	return ret;
>  }
>  
> -static int venc_get_v3(struct device *dev)
> -{
> -	struct venus_core *core = dev_get_drvdata(dev);
> -
> -	return vcodec_clks_get(core, dev, 1);
> -}
> -
>  static int venc_power_v3(struct device *dev, int on)
>  {
>  	struct venus_core *core = dev_get_drvdata(dev);
> @@ -389,7 +382,6 @@ static int venc_power_v3(struct device *dev, int on)
>  
>  static const struct venus_pm_ops pm_ops_v3 = {
>  	.vdec_power = vdec_power_v3,
> -	.venc_get = venc_get_v3,
>  	.venc_power = venc_power_v3,
>  	.load_scale = load_scale_v1,
>  };
> @@ -785,16 +777,6 @@ static int vdec_power_v4(struct device *dev, int on)
>  	return ret;
>  }
>  
> -static int venc_get_v4(struct device *dev)
> -{
> -	struct venus_core *core = dev_get_drvdata(dev);
> -
> -	if (!legacy_binding)
> -		return 0;
> -
> -	return vcodec_clks_get(core, dev, 1);
> -}
> -
>  static void venc_put_v4(struct device *dev)
>  {
>  	struct venus_core *core = dev_get_drvdata(dev);
> @@ -1092,7 +1074,6 @@ static int load_scale_v4(struct venus_inst *inst)
>  static const struct venus_pm_ops pm_ops_v4 = {
>  	.vdec_put = vdec_put_v4,
>  	.vdec_power = vdec_power_v4,
> -	.venc_get = venc_get_v4,
>  	.venc_put = venc_put_v4,
>  	.venc_power = venc_power_v4,
>  	.coreid_power = coreid_power_v4,
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.h b/drivers/media/platform/qcom/venus/pm_helpers.h
> index 4afc57dac865..cbf54e6c6eab 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.h
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.h
> @@ -13,7 +13,6 @@ struct venus_pm_ops {
>  	void (*vdec_put)(struct device *dev);
>  	int (*vdec_power)(struct device *dev, int on);
>  
> -	int (*venc_get)(struct device *dev);
>  	void (*venc_put)(struct device *dev);
>  	int (*venc_power)(struct device *dev, int on);
>  
> diff --git a/drivers/media/platform/qcom/venus/venc.c b/drivers/media/platform/qcom/venus/venc.c
> index 3ec2fb8d9fab..d17aeba74b49 100644
> --- a/drivers/media/platform/qcom/venus/venc.c
> +++ b/drivers/media/platform/qcom/venus/venc.c
> @@ -1557,8 +1557,13 @@ static int venc_probe(struct platform_device *pdev)
>  
>  	platform_set_drvdata(pdev, core);
>  
> -	if (core->pm_ops->venc_get) {
> -		ret = core->pm_ops->venc_get(dev);
> +	/*
> +	 * If the vcodec core clock is missing by now, it either doesn't exist
> +	 * (8916) or deprecated bindings with pre-assigned core functions and
> +	 * resources under the decoder node are in use.
> +	 */
> +	if (!core->vcodec_core_clks[1]) {
> +		ret = vcodec_clks_get(core, dev, 1);
>  		if (ret)
>  			return ret;
>  	}
> 
> From patchwork Fri Feb  9 21:10:04 2024
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> From: Konrad Dybcio <konrad.dybcio@linaro.org>
> Date: Fri, 09 Feb 2024 22:10:04 +0100
> Subject: [PATCH v2 20/20] media: venus: pm_helpers: Use reset_bulk API
> Precedence: bulk
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> In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
> To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
>  Vikash Garodia <quic_vgarodia@quicinc.com>,
>  Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
>  Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>,
>  Mauro Carvalho Chehab <mchehab@kernel.org>,
>  Dikshita Agarwal <quic_dikshita@quicinc.com>,
>  Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Marijn Suijten <marijn.suijten@somainline.org>,
>  Stanimir Varbanov <stanimir.varbanov@linaro.org>,
>  Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
>  linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
>  linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>
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>  i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id;
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>  pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms=
> 
> All of the resets are toggled together. Use the bulk api to save on some
> code complexity.
> 
> The delay between resets is now correctly determined by the reset
> framework.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
> ---
>  drivers/media/platform/qcom/venus/core.c       | 15 ++++++++++-----
>  drivers/media/platform/qcom/venus/core.h       |  4 ++--
>  drivers/media/platform/qcom/venus/pm_helpers.c | 15 +++------------
>  3 files changed, 15 insertions(+), 19 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index 873affe17537..ff5601a5ce77 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -328,11 +328,16 @@ static int venus_probe(struct platform_device *pdev)
>  	if (ret)
>  		return ret;
>  
> -	for (i = 0; i < res->resets_num; i++) {
> -		core->resets[i] = devm_reset_control_get_exclusive(dev, res->resets[i]);
> -		if (IS_ERR(core->resets[i]))
> -			return PTR_ERR(core->resets[i]);
> -	}
> +	core->resets = devm_kcalloc(dev, res->resets_num, sizeof(*core->resets), GFP_KERNEL);
> +	if (res->resets_num && !core->resets)
> +		return -ENOMEM;
> +
> +	for (i = 0; i < res->resets_num; i++)
> +		core->resets[i].id = res->resets[i];
> +
> +	ret = devm_reset_control_bulk_get_exclusive(dev, res->resets_num, core->resets);
> +	if (ret)
> +		return dev_err_probe(dev, ret, "Failed to get resets\n");
>  
>  	ret = venus_get_resources(core);
>  	if (ret)
> diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
> index 6ecaa3e38cac..2376b9cbdf2c 100644
> --- a/drivers/media/platform/qcom/venus/core.h
> +++ b/drivers/media/platform/qcom/venus/core.h
> @@ -130,7 +130,7 @@ struct venus_format {
>   * @pmdomains:	a pointer to a list of pmdomains
>   * @opp_dl_venus: an device-link for device OPP
>   * @opp_pmdomain: an OPP power-domain
> - * @resets: an array of reset signals
> + * @resets: a reset_control_bulk_data array of hardware reset signals
>   * @vdev_dec:	a reference to video device structure for decoder instances
>   * @vdev_enc:	a reference to video device structure for encoder instances
>   * @v4l2_dev:	a holder for v4l2 device structure
> @@ -183,7 +183,7 @@ struct venus_core {
>  	struct dev_pm_domain_list *pmdomains;
>  	struct device_link *opp_dl_venus;
>  	struct device *opp_pmdomain;
> -	struct reset_control *resets[VIDC_RESETS_NUM_MAX];
> +	struct reset_control_bulk_data *resets;
>  	struct video_device *vdev_dec;
>  	struct video_device *vdev_enc;
>  	struct v4l2_device v4l2_dev;
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
> index 9df8f2292c17..170fb131cb1e 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.c
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c
> @@ -865,21 +865,12 @@ void vcodec_domains_put(struct venus_core *core)
>  static int core_resets_reset(struct venus_core *core)
>  {
>  	const struct venus_resources *res = core->res;
> -	unsigned int i;
>  	int ret;
>  
> -	for (i = 0; i < res->resets_num; i++) {
> -		ret = reset_control_assert(core->resets[i]);
> -		if (ret)
> -			goto err;
> -
> -		usleep_range(150, 250);
> -		ret = reset_control_deassert(core->resets[i]);
> -		if (ret)
> -			goto err;
> -	}
> +	ret = reset_control_bulk_reset(res->resets_num, core->resets);
> +	if (ret)
> +		dev_err(core->dev, "Failed to toggle resets: %d\n", ret);
>  
> -err:
>  	return ret;
>  }
>  

Re: [PATCH v2 01/20] media: venus: pm_helpers: Only set rate of the core clock in core_clks_enable

[Konrad Dybcio]

On 12.07.2024 8:07 AM, Dikshita Agarwal wrote:
> Hi All,
> 
> Please ignore this patch, didn't realize it was in my workspace when I sent
> the other series. Sorry for spam.

Hm?

Konrad

Re: [PATCH 0/2] add device managed version of dev_pm_domain_attach|detach_list()

[Ulf Hansson]

On Fri, 12 Jul 2024 at 07:49, Dikshita Agarwal
<quic_dikshita@quicinc.com> wrote:
>
> These patches add the devres-enabled version of dev_pm_domain_attach|detach_list
> in pm domain framework and use the same APIs in venus driver.
> If any client drivers use devm_pm_domain_attach_list() to attach the PM domains,
> devm_pm_domain_detach_list() will be invoked implicitly during remove phase.
>
> Dikshita Agarwal (2):
>   PM: domains: add device managed version of
>     dev_pm_domain_attach|detach_list()
>   media: venus: use device managed APIs for power domains
>
>  drivers/base/power/common.c                    | 41 ++++++++++++++++++++++++++
>  drivers/media/platform/qcom/venus/pm_helpers.c |  5 +---
>  include/linux/pm_domain.h                      |  4 +++
>  3 files changed, 46 insertions(+), 4 deletions(-)
>

This ended up being a little bit late for v6.11, please re-post a new
version when rc-1 is out.

Kind regards
Uffe