[PATCH] remoteproc: qcom: select QCOM_SMP2P for all qcom pils

[PATCH] remoteproc: qcom: select QCOM_SMP2P for all qcom pils

[srinivas.kandagatla]

From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

All Qualcomm PIL drivers require SMP2P module to get a functional PIL,
Currently user has to explicitly select SMP2P module, after looking
at failure logs.

Fix this by selecting SMP2P as part of dependency of pil kconfig itself.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
 drivers/remoteproc/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
index 8891a8e50f12..052c9e20abb6 100644
--- a/drivers/remoteproc/Kconfig
+++ b/drivers/remoteproc/Kconfig
@@ -87,6 +87,7 @@ config QCOM_ADSP_PIL
 	select QCOM_MDT_LOADER
 	select QCOM_RPROC_COMMON
 	select QCOM_SCM
+	select QCOM_SMP2P
 	help
 	  Say y here to support the TrustZone based Peripherial Image Loader
 	  for the Qualcomm ADSP remote processors.
@@ -102,6 +103,7 @@ config QCOM_Q6V5_PIL
 	select MFD_SYSCON
 	select QCOM_RPROC_COMMON
 	select QCOM_SCM
+	select QCOM_SMP2P
 	help
 	  Say y here to support the Qualcomm Peripherial Image Loader for the
 	  Hexagon V5 based remote processors.
@@ -114,6 +116,7 @@ config QCOM_WCNSS_PIL
 	select QCOM_MDT_LOADER
 	select QCOM_RPROC_COMMON
 	select QCOM_SCM
+	select QCOM_SMP2P
 	help
 	  Say y here to support the Peripheral Image Loader for the Qualcomm
 	  Wireless Connectivity Subsystem.
-- 
2.11.0

Re: [PATCH] remoteproc: qcom: select QCOM_SMP2P for all qcom pils

[Bjorn Andersson]

On Wed 13 Sep 09:04 PDT 2017, srinivas.kandagatla@linaro.org wrote:

> From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
> 
> All Qualcomm PIL drivers require SMP2P module to get a functional PIL,
> Currently user has to explicitly select SMP2P module, after looking
> at failure logs.
> 
> Fix this by selecting SMP2P as part of dependency of pil kconfig itself.
> 

The Kconfig should describe dependencies needed by the code, not by the
system.

I agree with you that this leads to wasted time trying figure out if
we're missing drivers/modules in the kernel, but I think that needs to
be solved in a more generic way.

> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
> ---
>  drivers/remoteproc/Kconfig | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
> index 8891a8e50f12..052c9e20abb6 100644
> --- a/drivers/remoteproc/Kconfig
> +++ b/drivers/remoteproc/Kconfig
> @@ -87,6 +87,7 @@ config QCOM_ADSP_PIL
>  	select QCOM_MDT_LOADER
>  	select QCOM_RPROC_COMMON
>  	select QCOM_SCM
> +	select QCOM_SMP2P

NB. QCOM_SMP2P is a user-selectable config option, so you are not
allowed to "select" it, only "depends on" it.

Regards,
Bjorn

Re: [PATCH] remoteproc: qcom: select QCOM_SMP2P for all qcom pils

[Srinivas Kandagatla]

On 14/09/17 17:57, Bjorn Andersson wrote:
> On Wed 13 Sep 09:04 PDT 2017, srinivas.kandagatla@linaro.org wrote:
> 
>> From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
>>
>> All Qualcomm PIL drivers require SMP2P module to get a functional PIL,
>> Currently user has to explicitly select SMP2P module, after looking
>> at failure logs.
>>
>> Fix this by selecting SMP2P as part of dependency of pil kconfig itself.
>>
> 
> The Kconfig should describe dependencies needed by the code, not by the
> system.

I partially agree with this! As I did not realize that that there are 
more than one SMEM_STATE drivers.


The driver bindings clearly marks "qcom,smem-states" and 
"qcom,smem-state-names" as required properties, so it makes the driver 
dependent on SMEM_STATE.

But SMEM_STATE is only selected from SMP2P Kconfig.

Indirectly/directly the driver is dependent on the SMEM_STATE drivers.


> 
> I agree with you that this leads to wasted time trying figure out if
> we're missing drivers/modules in the kernel, but I think that needs to
> be solved in a more generic way.
> 
>> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
>> ---
>>   drivers/remoteproc/Kconfig | 3 +++
>>   1 file changed, 3 insertions(+)
>>
>> diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
>> index 8891a8e50f12..052c9e20abb6 100644
>> --- a/drivers/remoteproc/Kconfig
>> +++ b/drivers/remoteproc/Kconfig
>> @@ -87,6 +87,7 @@ config QCOM_ADSP_PIL
>>   	select QCOM_MDT_LOADER
>>   	select QCOM_RPROC_COMMON
>>   	select QCOM_SCM
>> +	select QCOM_SMP2P

I agree, instead of select, we should mark these configs with a

depends on QCOM_SMEM_STATE


so that the final pil kconfigs are only selected with right dependencies 
are in place.
Does that sound okay?


thanks,
srini

> 
> NB. QCOM_SMP2P is a user-selectable config option, so you are not
> allowed to "select" it, only "depends on" it.
> 
> Regards,
> Bjorn
>