diff mbox series

[v3,3/3] ARM: dts: exynos: Rename compatible string property from version to SoC specific

Message ID 20221111032337.79219-4-aakarsh.jain@samsung.com
State New
Headers
Series Addition of new compatible for Exynos3250. |

Commit Message

Aakarsh Jain Nov. 11, 2022, 3:23 a.m. UTC 
  commit "752d3a23d1f68de87e3c" which adds MFC codec device node
for exynos3250 SoC. Since exynos3250.dtsi and exynos5420.dtsi are
using same compatible string as "samsung,mfc-v7" but their
node properties are different.As both SoCs have MFC v7 hardware
module but with different clock hierarchy and complexity.
So renaming compatible string from version specific to SoC based.

Reviewed-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
Suggested-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Aakarsh Jain <aakarsh.jain@samsung.com>
---
 arch/arm/boot/dts/exynos3250.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Krzysztof Kozlowski Nov. 11, 2022, 8:10 a.m. UTC | #1 
On 11/11/2022 04:23, Aakarsh Jain wrote:
> commit "752d3a23d1f68de87e3c" which adds MFC codec device node
> for exynos3250 SoC. Since exynos3250.dtsi and exynos5420.dtsi are
> using same compatible string as "samsung,mfc-v7" but their
> node properties are different.As both SoCs have MFC v7 hardware
> module but with different clock hierarchy and complexity.
> So renaming compatible string from version specific to SoC based.
> 
> Reviewed-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
> Suggested-by: Alim Akhtar <alim.akhtar@samsung.com>
> Signed-off-by: Aakarsh Jain <aakarsh.jain@samsung.com>
> ---
>  arch/arm/boot/dts/exynos3250.dtsi | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi
> index 326b9e0ed8d3..98105c64f7d9 100644
> --- a/arch/arm/boot/dts/exynos3250.dtsi
> +++ b/arch/arm/boot/dts/exynos3250.dtsi
> @@ -485,7 +485,7 @@
>  		};
>  
>  		mfc: codec@13400000 {
> -			compatible = "samsung,mfc-v7";
> +			compatible = "samsung,exynos3250-mfc";

No improvements. Changeset is non-bisectable. I said it in v1, then in
v2. So now third time... Don't send a new version if you are not going
to fix it or resolve discussion.

In cover letter you said "Addressed review comments from Krzysztof
Kozlowski", so please explain me, how did you resolve my comments about
fallback for this patch and for bindings patch?

Best regards,
Krzysztof
Aakarsh Jain Nov. 11, 2022, 9:22 a.m. UTC | #2 
Hi Krzysztof,

> -----Original Message-----
> From: Krzysztof Kozlowski [mailto:krzysztof.kozlowski@linaro.org]
> Sent: 11 November 2022 13:41
> To: Aakarsh Jain <aakarsh.jain@samsung.com>; linux-arm-
> kernel@lists.infradead.org; linux-media@vger.kernel.org; linux-
> kernel@vger.kernel.org; devicetree@vger.kernel.org
> Cc: m.szyprowski@samsung.com; andrzej.hajda@intel.com;
> mchehab@kernel.org; hverkuil-cisco@xs4all.nl;
> ezequiel@vanguardiasur.com.ar; jernej.skrabec@gmail.com;
> benjamin.gaignard@collabora.com; krzysztof.kozlowski+dt@linaro.org;
> stanimir.varbanov@linaro.org; dillon.minfei@gmail.com;
> david.plowman@raspberrypi.com; mark.rutland@arm.com;
> robh+dt@kernel.org; krzk+dt@kernel.org; andi@etezian.org;
> alim.akhtar@samsung.com; aswani.reddy@samsung.com;
> pankaj.dubey@samsung.com; smitha.t@samsung.com
> Subject: Re: [Patch v3 3/3] ARM: dts: exynos: Rename compatible string
> property from version to SoC specific
> 
> On 11/11/2022 04:23, Aakarsh Jain wrote:
> > commit "752d3a23d1f68de87e3c" which adds MFC codec device node for
> > exynos3250 SoC. Since exynos3250.dtsi and exynos5420.dtsi are using
> > same compatible string as "samsung,mfc-v7" but their node properties
> > are different.As both SoCs have MFC v7 hardware module but with
> > different clock hierarchy and complexity.
> > So renaming compatible string from version specific to SoC based.
> >
> > Reviewed-by: Tommaso Merciai
> <tommaso.merciai@amarulasolutions.com>
> > Suggested-by: Alim Akhtar <alim.akhtar@samsung.com>
> > Signed-off-by: Aakarsh Jain <aakarsh.jain@samsung.com>
> > ---
> >  arch/arm/boot/dts/exynos3250.dtsi | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/arch/arm/boot/dts/exynos3250.dtsi
> > b/arch/arm/boot/dts/exynos3250.dtsi
> > index 326b9e0ed8d3..98105c64f7d9 100644
> > --- a/arch/arm/boot/dts/exynos3250.dtsi
> > +++ b/arch/arm/boot/dts/exynos3250.dtsi
> > @@ -485,7 +485,7 @@
> >  		};
> >
> >  		mfc: codec@13400000 {
> > -			compatible = "samsung,mfc-v7";
> > +			compatible = "samsung,exynos3250-mfc";
> 
> No improvements. Changeset is non-bisectable. I said it in v1, then in v2. So
> now third time... Don't send a new version if you are not going to fix it or
> resolve discussion.
> 
My bad, misunderstood, now I understood your concerns around bisectability.

I hope you mean the below:
------
diff --git a/Documentation/devicetree/bindings/media/s5p-mfc.txt b/Documentation/devicetree/bindings/media/s5p-mfc.txt
index cb166654fa81..734e53445eb5 100644
--- a/Documentation/devicetree/bindings/media/s5p-mfc.txt
+++ b/Documentation/devicetree/bindings/media/s5p-mfc.txt
@@ -10,7 +10,8 @@ Required properties:
   - compatible : value should be either one among the following
        (a) "samsung,mfc-v5" for MFC v5 present in Exynos4 SoCs
        (b) "samsung,mfc-v6" for MFC v6 present in Exynos5 SoCs
-       (c) "samsung,exynos3250-mfc" for MFC v7 present in Exynos3250 SoC
+       (c) "samsung,exynos3250-mfc","samsung,mfc-v7" for MFC v7
+            variant present in Exynos3250 SoC.
        (d) "samsung,mfc-v7" for MFC v7 present in Exynos5420 SoC
        (e) "samsung,mfc-v8" for MFC v8 present in Exynos5800 SoC
        (f) "samsung,exynos5433-mfc" for MFC v8 present in Exynos5433 SoC
diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi
index 98105c64f7d9..a2d6ee7fff08 100644
--- a/arch/arm/boot/dts/exynos3250.dtsi
+++ b/arch/arm/boot/dts/exynos3250.dtsi
@@ -485,7 +485,7 @@
                };

                mfc: codec@13400000 {
-                       compatible = "samsung,exynos3250-mfc";
+                       compatible = "samsung,exynos3250-mfc", "samsung,mfc-v7";
                        reg = <0x13400000 0x10000>;
                        interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>;
                        clock-names = "mfc", "sclk_mfc";
-----

Where mfc-v7 will be used as fallback for the older kernel which might use new dtb.

Let me know if this is not what you meant or am I still missing something?


> In cover letter you said "Addressed review comments from Krzysztof
> Kozlowski", so please explain me, how did you resolve my comments about
> fallback for this patch and for bindings patch?
> 
My bad, I just explained the misunderstanding above.

> Best regards,
> Krzysztof
Krzysztof Kozlowski Nov. 11, 2022, 9:47 a.m. UTC | #3 
On 11/11/2022 10:22, Aakarsh Jain wrote:
> Hi Krzysztof,
> 
>> -----Original Message-----
>> From: Krzysztof Kozlowski [mailto:krzysztof.kozlowski@linaro.org]
>> Sent: 11 November 2022 13:41
>> To: Aakarsh Jain <aakarsh.jain@samsung.com>; linux-arm-
>> kernel@lists.infradead.org; linux-media@vger.kernel.org; linux-
>> kernel@vger.kernel.org; devicetree@vger.kernel.org
>> Cc: m.szyprowski@samsung.com; andrzej.hajda@intel.com;
>> mchehab@kernel.org; hverkuil-cisco@xs4all.nl;
>> ezequiel@vanguardiasur.com.ar; jernej.skrabec@gmail.com;
>> benjamin.gaignard@collabora.com; krzysztof.kozlowski+dt@linaro.org;
>> stanimir.varbanov@linaro.org; dillon.minfei@gmail.com;
>> david.plowman@raspberrypi.com; mark.rutland@arm.com;
>> robh+dt@kernel.org; krzk+dt@kernel.org; andi@etezian.org;
>> alim.akhtar@samsung.com; aswani.reddy@samsung.com;
>> pankaj.dubey@samsung.com; smitha.t@samsung.com
>> Subject: Re: [Patch v3 3/3] ARM: dts: exynos: Rename compatible string
>> property from version to SoC specific
>>
>> On 11/11/2022 04:23, Aakarsh Jain wrote:
>>> commit "752d3a23d1f68de87e3c" which adds MFC codec device node for
>>> exynos3250 SoC. Since exynos3250.dtsi and exynos5420.dtsi are using
>>> same compatible string as "samsung,mfc-v7" but their node properties
>>> are different.As both SoCs have MFC v7 hardware module but with
>>> different clock hierarchy and complexity.
>>> So renaming compatible string from version specific to SoC based.
>>>
>>> Reviewed-by: Tommaso Merciai
>> <tommaso.merciai@amarulasolutions.com>
>>> Suggested-by: Alim Akhtar <alim.akhtar@samsung.com>
>>> Signed-off-by: Aakarsh Jain <aakarsh.jain@samsung.com>
>>> ---
>>>  arch/arm/boot/dts/exynos3250.dtsi | 2 +-
>>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/arch/arm/boot/dts/exynos3250.dtsi
>>> b/arch/arm/boot/dts/exynos3250.dtsi
>>> index 326b9e0ed8d3..98105c64f7d9 100644
>>> --- a/arch/arm/boot/dts/exynos3250.dtsi
>>> +++ b/arch/arm/boot/dts/exynos3250.dtsi
>>> @@ -485,7 +485,7 @@
>>>  		};
>>>
>>>  		mfc: codec@13400000 {
>>> -			compatible = "samsung,mfc-v7";
>>> +			compatible = "samsung,exynos3250-mfc";
>>
>> No improvements. Changeset is non-bisectable. I said it in v1, then in v2. So
>> now third time... Don't send a new version if you are not going to fix it or
>> resolve discussion.
>>
> My bad, misunderstood, now I understood your concerns around bisectability.
> 
> I hope you mean the below:
> ------
> diff --git a/Documentation/devicetree/bindings/media/s5p-mfc.txt b/Documentation/devicetree/bindings/media/s5p-mfc.txt
> index cb166654fa81..734e53445eb5 100644
> --- a/Documentation/devicetree/bindings/media/s5p-mfc.txt
> +++ b/Documentation/devicetree/bindings/media/s5p-mfc.txt
> @@ -10,7 +10,8 @@ Required properties:
>    - compatible : value should be either one among the following
>         (a) "samsung,mfc-v5" for MFC v5 present in Exynos4 SoCs
>         (b) "samsung,mfc-v6" for MFC v6 present in Exynos5 SoCs
> -       (c) "samsung,exynos3250-mfc" for MFC v7 present in Exynos3250 SoC
> +       (c) "samsung,exynos3250-mfc","samsung,mfc-v7" for MFC v7
> +            variant present in Exynos3250 SoC.
>         (d) "samsung,mfc-v7" for MFC v7 present in Exynos5420 SoC
>         (e) "samsung,mfc-v8" for MFC v8 present in Exynos5800 SoC
>         (f) "samsung,exynos5433-mfc" for MFC v8 present in Exynos5433 SoC
> diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi
> index 98105c64f7d9..a2d6ee7fff08 100644
> --- a/arch/arm/boot/dts/exynos3250.dtsi
> +++ b/arch/arm/boot/dts/exynos3250.dtsi
> @@ -485,7 +485,7 @@
>                 };
> 
>                 mfc: codec@13400000 {
> -                       compatible = "samsung,exynos3250-mfc";
> +                       compatible = "samsung,exynos3250-mfc", "samsung,mfc-v7";
>                         reg = <0x13400000 0x10000>;
>                         interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>;
>                         clock-names = "mfc", "sclk_mfc";
> -----
> 
> Where mfc-v7 will be used as fallback for the older kernel which might use new dtb.
> 
> Let me know if this is not what you meant or am I still missing something?

Yes, this is what I meant. Thanks.

Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi
index 326b9e0ed8d3..98105c64f7d9 100644
--- a/arch/arm/boot/dts/exynos3250.dtsi
+++ b/arch/arm/boot/dts/exynos3250.dtsi
@@ -485,7 +485,7 @@ 
 		};
 
 		mfc: codec@13400000 {
-			compatible = "samsung,mfc-v7";
+			compatible = "samsung,exynos3250-mfc";
 			reg = <0x13400000 0x10000>;
 			interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>;
 			clock-names = "mfc", "sclk_mfc";