[PATCH] ARM: dts: add interrupt-names property to get interrupt resource by name

Vikas Sajjan vikas.sajjan at linaro.org
Fri Mar 15 15:04:38 EST 2013


Hi,

On 13 March 2013 20:09, Rob Herring <robherring2 at gmail.com> wrote:
> The subject is completely misleading. Make it clear what the scope of
> this patch is.
>
> On 03/13/2013 06:26 AM, Vikas Sajjan wrote:
>> The FIMD driver expects the "vsync" interrupt to be mentioned as the 1st
>> parameter in the FIMD DT node. So to meet this expectation of the driver,
>> the FIMD DT node was forced to be made by keeping "vsync" as the 1st
>> parameter.
>>
>> this resolves the above mentioned "hack" by introducing
>> "interrupt-names", so that FIMD driver can get the interrupt resource by
>> name as discussed at
>> http://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg16211.html
>
> I fail to see what the hack is. The order of interrupt properties must
> be defined by the binding. interrupt-names is auxiliary data and must
> not be required by an OS.
>
>> patch is dependent on https://patchwork.kernel.org/patch/2184981/
>
> Why the split? These should be combined.
Sure, I shall ask Leela to merge this patch with
https://patchwork.kernel.org/patch/2184981/
and resend.

>
>>
>> Signed-off-by: Vikas Sajjan <vikas.sajjan at linaro.org>
>> ---
>>  arch/arm/boot/dts/exynos5250.dtsi |    3 ++-
>>  1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
>> index 0ee4706..76c8911 100644
>> --- a/arch/arm/boot/dts/exynos5250.dtsi
>> +++ b/arch/arm/boot/dts/exynos5250.dtsi
>> @@ -588,6 +588,7 @@
>>               compatible = "samsung,exynos5-fimd";
>>               interrupt-parent = <&combiner>;
>>               reg = <0x14400000 0x40000>;
>> -             interrupts = <18 5>, <18 4>, <18 6>;
>> +             interrupt-names = "fifo", "vsync", "lcd_sys";
>> +             interrupts = <18 4>, <18 5>, <18 6>;
>
> There should be some documentation describing the order of the interrupts.
>
> Rob
>



-- 
Thanks and Regards
 Vikas Sajjan


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