[PATCH 2/8] media: iris: Add support for multiple clock sources

Vikash Garodia
2025-09-24T23:16:02Z

vpu4 comes with more than one clock sources running the hardware, so far
it was clocked by single clock source in vpu3x and earlier. Configure
OPP table for video device with these different video clocks, such that
the OPP can be set to multiple clocks during dev_pm_opp_set_opp(). This
patch extends the support for multiple clocks in driver, which would be
used in subsequent patch for kaanapali, when the platform data is
prepared.

Co-developed-by: Vishnu Reddy <quic_bvisredd@quicinc.com>
Signed-off-by: Vishnu Reddy <quic_bvisredd@quicinc.com>
Signed-off-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com>
---
.../media/platform/qcom/iris/iris_platform_common.h | 1 +
.../media/platform/qcom/iris/iris_platform_gen2.c | 9 +++++++++
.../media/platform/qcom/iris/iris_platform_sm8250.c | 6 ++++++
drivers/media/platform/qcom/iris/iris_power.c | 2 +-
drivers/media/platform/qcom/iris/iris_probe.c | 20 ++++++++------------
drivers/media/platform/qcom/iris/iris_resources.c | 16 ++++++++++++++--
drivers/media/platform/qcom/iris/iris_resources.h | 1 +
drivers/media/platform/qcom/iris/iris_vpu_common.c | 4 ++--
8 files changed, 42 insertions(+), 17 deletions(-)

diff --git a/drivers/media/platform/qcom/iris/iris_platform_common.h b/drivers/media/platform/qcom/iris/iris_platform_common.h
index 58d05e0a112eed25faea027a34c719c89d6c3897..df03de08c44839c1b6c137874eb7273c638d5f2c 100644
--- a/drivers/media/platform/qcom/iris/iris_platform_common.h
+++ b/drivers/media/platform/qcom/iris/iris_platform_common.h
@@ -206,6 +206,7 @@ struct iris_platform_data {
const char * const *opp_pd_tbl;
unsigned int opp_pd_tbl_size;
const struct platform_clk_data *clk_tbl;
+ const char * const *opp_clk_tbl;
unsigned int clk_tbl_size;
const char * const *clk_rst_tbl;
unsigned int clk_rst_tbl_size;
diff --git a/drivers/media/platform/qcom/iris/iris_platform_gen2.c b/drivers/media/platform/qcom/iris/iris_platform_gen2.c
index 36d69cc73986b74534a2912524c8553970fd862e..fea800811a389a58388175c733ad31c4d9c636b0 100644
--- a/drivers/media/platform/qcom/iris/iris_platform_gen2.c
+++ b/drivers/media/platform/qcom/iris/iris_platform_gen2.c
@@ -633,6 +633,11 @@ static const struct platform_clk_data sm8550_clk_table[] = {
{IRIS_HW_CLK, "vcodec0_core" },
};

+static const char * const sm8550_opp_clk_table[] = {
+ "vcodec0_core",
+ NULL,
+};
+
static struct ubwc_config_data ubwc_config_sm8550 = {
.max_channels = 8,
.mal_length = 32,
@@ -756,6 +761,7 @@ struct iris_platform_data sm8550_data = {
.opp_pd_tbl_size = ARRAY_SIZE(sm8550_opp_pd_table),
.clk_tbl = sm8550_clk_table,
.clk_tbl_size = ARRAY_SIZE(sm8550_clk_table),
+ .opp_clk_tbl = sm8550_opp_clk_table,
/* Upper bound of DMA address range */
.dma_mask = 0xe0000000 - 1,
.fwname = "qcom/vpu/vpu30_p4.mbn",
@@ -848,6 +854,7 @@ struct iris_platform_data sm8650_data = {
.opp_pd_tbl_size = ARRAY_SIZE(sm8550_opp_pd_table),
.clk_tbl = sm8550_clk_table,
.clk_tbl_size = ARRAY_SIZE(sm8550_clk_table),
+ .opp_clk_tbl = sm8550_opp_clk_table,
/* Upper bound of DMA address range */
.dma_mask = 0xe0000000 - 1,
.fwname = "qcom/vpu/vpu33_p4.mbn",
@@ -930,6 +937,7 @@ struct iris_platform_data sm8750_data = {
.opp_pd_tbl_size = ARRAY_SIZE(sm8550_opp_pd_table),
.clk_tbl = sm8750_clk_table,
.clk_tbl_size = ARRAY_SIZE(sm8750_clk_table),
+ .opp_clk_tbl = sm8550_opp_clk_table,
/* Upper bound of DMA address range */
.dma_mask = 0xe0000000 - 1,
.fwname = "qcom/vpu/vpu35_p4.mbn",
@@ -1017,6 +1025,7 @@ struct iris_platform_data qcs8300_data = {
.opp_pd_tbl_size = ARRAY_SIZE(sm8550_opp_pd_table),
.clk_tbl = sm8550_clk_table,
.clk_tbl_size = ARRAY_SIZE(sm8550_clk_table),
+ .opp_clk_tbl = sm8550_opp_clk_table,
/* Upper bound of DMA address range */
.dma_mask = 0xe0000000 - 1,
.fwname = "qcom/vpu/vpu30_p4_s6.mbn",
diff --git a/drivers/media/platform/qcom/iris/iris_platform_sm8250.c b/drivers/media/platform/qcom/iris/iris_platform_sm8250.c
index 16486284f8acccf6a95a27f6003e885226e28f4d..1b1b6aa751106ee0b0bc71bb0df2e78340190e66 100644
--- a/drivers/media/platform/qcom/iris/iris_platform_sm8250.c
+++ b/drivers/media/platform/qcom/iris/iris_platform_sm8250.c
@@ -273,6 +273,11 @@ static const struct platform_clk_data sm8250_clk_table[] = {
{IRIS_HW_CLK, "vcodec0_core" },
};

+static const char * const sm8250_opp_clk_table[] = {
+ "vcodec0_core",
+ NULL,
+};
+
static struct tz_cp_config tz_cp_config_sm8250 = {
.cp_start = 0,
.cp_size = 0x25800000,
@@ -333,6 +338,7 @@ struct iris_platform_data sm8250_data = {
.opp_pd_tbl_size = ARRAY_SIZE(sm8250_opp_pd_table),
.clk_tbl = sm8250_clk_table,
.clk_tbl_size = ARRAY_SIZE(sm8250_clk_table),
+ .opp_clk_tbl = sm8250_opp_clk_table,
/* Upper bound of DMA address range */
.dma_mask = 0xe0000000 - 1,
.fwname = "qcom/vpu-1.0/venus.mbn",
diff --git a/drivers/media/platform/qcom/iris/iris_power.c b/drivers/media/platform/qcom/iris/iris_power.c
index dbca42df0910fd3c0fb253dbfabf1afa2c3d32ad..91aa21d4070ebcebbe2ed127a03e5e49b9a2bd5c 100644
--- a/drivers/media/platform/qcom/iris/iris_power.c
+++ b/drivers/media/platform/qcom/iris/iris_power.c
@@ -91,7 +91,7 @@ static int iris_set_clocks(struct iris_inst *inst)
}

core->power.clk_freq = freq;
- ret = dev_pm_opp_set_rate(core->dev, freq);
+ ret = iris_opp_set_rate(core->dev, freq);
mutex_unlock(&core->lock);

return ret;
diff --git a/drivers/media/platform/qcom/iris/iris_probe.c b/drivers/media/platform/qcom/iris/iris_probe.c
index 00e99be16e087c4098f930151fd76cd381d721ce..ad82a62f8b923d818ffe77c131d7eb6da8c34002 100644
--- a/drivers/media/platform/qcom/iris/iris_probe.c
+++ b/drivers/media/platform/qcom/iris/iris_probe.c
@@ -40,8 +40,6 @@ static int iris_init_icc(struct iris_core *core)

static int iris_init_power_domains(struct iris_core *core)
{
- const struct platform_clk_data *clk_tbl;
- u32 clk_cnt, i;
int ret;

struct dev_pm_domain_attach_data iris_pd_data = {
@@ -56,6 +54,11 @@ static int iris_init_power_domains(struct iris_core *core)
.pd_flags = PD_FLAG_DEV_LINK_ON | PD_FLAG_REQUIRED_OPP,
};

+ struct dev_pm_opp_config iris_opp_clk_data = {
+ .clk_names = core->iris_platform_data->opp_clk_tbl,
+ .config_clks = dev_pm_opp_config_clks_simple,
+ };
+
ret = devm_pm_domain_attach_list(core->dev, &iris_pd_data, &core->pmdomain_tbl);
if (ret < 0)
return ret;
@@ -64,16 +67,9 @@ static int iris_init_power_domains(struct iris_core *core)
if (ret < 0)
return ret;

- clk_tbl = core->iris_platform_data->clk_tbl;
- clk_cnt = core->iris_platform_data->clk_tbl_size;
-
- for (i = 0; i < clk_cnt; i++) {
- if (clk_tbl[i].clk_type == IRIS_HW_CLK) {
- ret = devm_pm_opp_set_clkname(core->dev, clk_tbl[i].clk_name);
- if (ret)
- return ret;
- }
- }
+ ret = devm_pm_opp_set_config(core->dev, &iris_opp_clk_data);
+ if (ret)
+ return ret;

return devm_pm_opp_of_add_table(core->dev);
}
diff --git a/drivers/media/platform/qcom/iris/iris_resources.c b/drivers/media/platform/qcom/iris/iris_resources.c
index cf32f268b703c1c042a9bcf146e444fff4f4990d..939f6617f2631503fa8cb3e874b9de6b2fbe7b76 100644
--- a/drivers/media/platform/qcom/iris/iris_resources.c
+++ b/drivers/media/platform/qcom/iris/iris_resources.c
@@ -4,6 +4,7 @@
*/

#include <linux/clk.h>
+#include <linux/devfreq.h>
#include <linux/interconnect.h>
#include <linux/pm_domain.h>
#include <linux/pm_opp.h>
@@ -58,11 +59,22 @@ int iris_unset_icc_bw(struct iris_core *core)
return icc_bulk_set_bw(core->icc_count, core->icc_tbl);
}

+int iris_opp_set_rate(struct device *dev, unsigned long freq)
+{
+ struct dev_pm_opp *opp __free(put_opp);
+
+ opp = devfreq_recommended_opp(dev, &freq, 0);
+ if (IS_ERR(opp))
+ return PTR_ERR(opp);
+
+ return dev_pm_opp_set_opp(dev, opp);
+}
+
int iris_enable_power_domains(struct iris_core *core, struct device *pd_dev)
{
int ret;

- ret = dev_pm_opp_set_rate(core->dev, ULONG_MAX);
+ ret = iris_opp_set_rate(core->dev, ULONG_MAX);
if (ret)
return ret;

@@ -77,7 +89,7 @@ int iris_disable_power_domains(struct iris_core *core, struct device *pd_dev)
{
int ret;

- ret = dev_pm_opp_set_rate(core->dev, 0);
+ ret = iris_opp_set_rate(core->dev, 0);
if (ret)
return ret;

diff --git a/drivers/media/platform/qcom/iris/iris_resources.h b/drivers/media/platform/qcom/iris/iris_resources.h
index f723dfe5bd81a9c9db22d53bde4e18743d771210..6bfbd2dc6db095ec05e53c894e048285f82446c6 100644
--- a/drivers/media/platform/qcom/iris/iris_resources.h
+++ b/drivers/media/platform/qcom/iris/iris_resources.h
@@ -8,6 +8,7 @@

struct iris_core;

+int iris_opp_set_rate(struct device *dev, unsigned long freq);
int iris_enable_power_domains(struct iris_core *core, struct device *pd_dev);
int iris_disable_power_domains(struct iris_core *core, struct device *pd_dev);
int iris_unset_icc_bw(struct iris_core *core);
diff --git a/drivers/media/platform/qcom/iris/iris_vpu_common.c b/drivers/media/platform/qcom/iris/iris_vpu_common.c
index bb98950e018fadf69ac4f41b3037f7fd6ac33c5b..bbd999a41236dca5cf5700e452a6fed69f4fc922 100644
--- a/drivers/media/platform/qcom/iris/iris_vpu_common.c
+++ b/drivers/media/platform/qcom/iris/iris_vpu_common.c
@@ -266,7 +266,7 @@ void iris_vpu_power_off_hw(struct iris_core *core)

void iris_vpu_power_off(struct iris_core *core)
{
- dev_pm_opp_set_rate(core->dev, 0);
+ iris_opp_set_rate(core->dev, 0);
core->iris_platform_data->vpu_ops->power_off_hw(core);
core->iris_platform_data->vpu_ops->power_off_controller(core);
iris_unset_icc_bw(core);
@@ -352,7 +352,7 @@ int iris_vpu_power_on(struct iris_core *core)
freq = core->power.clk_freq ? core->power.clk_freq :
(u32)ULONG_MAX;

- dev_pm_opp_set_rate(core->dev, freq);
+ iris_opp_set_rate(core->dev, freq);

core->iris_platform_data->set_preset_registers(core);

--
2.34.1