Re: [PATCH] ARM: dts: exynos: Add MFC memory banks for Peach boards

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On 05/06/2016 03:44 PM, Javier Martinez Canillas wrote:
> Hello Krzysztof,
> 
> On 04/28/2016 03:21 PM, Javier Martinez Canillas wrote:
>> The MFC nodes with the memory regions reserved for memory allocations
>> are missing in the Exynos5420 Peach Pit and Exynos5800 Peach Pi DTS.
>>
>> This causes the s5p-mfc driver probe to fail with the following error:
>>
>> [    4.140647] s5p_mfc_alloc_memdevs:1072: Failed to declare coherent memory for MFC device
>> [    4.216163] s5p-mfc: probe of 11000000.codec failed with error -12
>>
>> Add the missing nodes so the driver probes and the {en,de}coder video
>> nodes are registered correctly:
>>
>> [    4.096277] s5p-mfc 11000000.codec: decoder registered as /dev/video4
>> [    4.102282] s5p-mfc 11000000.codec: encoder registered as /dev/video5
>>
>> Signed-off-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
>>
>> ---
>>
>>  arch/arm/boot/dts/exynos5420-peach-pit.dts | 5 +++++
>>  arch/arm/boot/dts/exynos5800-peach-pi.dts  | 5 +++++
>>  2 files changed, 10 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts
>> index b644858231b6..f9d2e4f1a0e0 100644
>> --- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
>> +++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
>> @@ -694,6 +694,11 @@
>>  	status = "okay";
>>  };
>>  
>> +&mfc {
>> +	samsung,mfc-r = <0x43000000 0x800000>;
>> +	samsung,mfc-l = <0x51000000 0x800000>;
>> +};
>> +
>>  &mmc_0 {
>>  	status = "okay";
>>  	num-slots = <1>;
>> diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
>> index 6ba9aec15485..62ceb89e073f 100644
>> --- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
>> +++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
>> @@ -669,6 +669,11 @@
>>  	status = "okay";
>>  };
>>  
>> +&mfc {
>> +	samsung,mfc-r = <0x43000000 0x800000>;
>> +	samsung,mfc-l = <0x51000000 0x800000>;
>> +};
>> +
>>  &mmc_0 {
>>  	status = "okay";
>>  	num-slots = <1>;
>>
> 
> Any comments about this patch?

What is up with the rush now (a week for ping)? As I understand, this
was broken for very long time on these boards (since adding DT support
in 2012?).

Best regards,
Krzysztof

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