Re: [PATCH v2 3/5] dt-bindings: Add documentation for GM20B GPU

Alexandre Courbot
2016-03-20T06:55:49Z

On Sat, Mar 19, 2016 at 5:47 AM, Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> wrote:
> On Tue, Mar 15, 2016 at 11:58:42AM +0900, Alexandre Courbot wrote:
>> GM20B's definition is mostly similar to GK20A's, but requires an
>> additional clock.
>>
>> Signed-off-by: Alexandre Courbot <acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
>> ---
>> .../devicetree/bindings/gpu/nvidia,gk20a.txt | 27 ++++++++++++++++++++--
>> 1 file changed, 25 insertions(+), 2 deletions(-)
>
> Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
>
> One nit below.
>
>>
>> diff --git a/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt b/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
>> index 1e3748337319..d9ad6b87fbbc 100644
>> --- a/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
>> +++ b/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
>> @@ -1,9 +1,10 @@
>> -NVIDIA GK20A Graphics Processing Unit
>> +NVIDIA Tegra Graphics Processing Units
>>
>> Required properties:
>> - compatible: "nvidia,<gpu>"
>> Currently recognized values:
>> - nvidia,gk20a
>> + - nvidia,gm20b
>> - reg: Physical base address and length of the controller's registers.
>> Must contain two entries:
>> - first entry for bar0
>> @@ -19,6 +20,9 @@ Required properties:
>> - clock-names: Must include the following entries:
>> - gpu
>> - pwr
>> +If the compatible string is "nvidia,gm20b", then the following clock
>> +is also required:
>> + - ref
>> - resets: Must contain an entry for each entry in reset-names.
>> See ../reset/reset.txt for details.
>> - reset-names: Must include the following entries:
>> @@ -27,7 +31,7 @@ Required properties:
>> Optional properties:
>> - iommus: A reference to the IOMMU. See ../iommu/iommu.txt for details.
>>
>> -Example:
>> +Example for GK20A:
>>
>> gpu@0,57000000 {
>> compatible = "nvidia,gk20a";
>> @@ -45,3 +49,22 @@ Example:
>> iommus = <&mc TEGRA_SWGROUP_GPU>;
>> status = "disabled";
>> };
>> +
>> +Example for GM20B:
>> +
>> + gpu@0,57000000 {
>
> Drop the comma and leading zero.

Even though this is how it appears in the actual DT?