[PATCH v2 02/22] drm/msm/dpu: correct MERGE_3D length

Dmitry Baryshkov dmitry.baryshkov at linaro.org
Fri Jun 16 09:45:55 UTC 2023


On 16/06/2023 01:22, Marijn Suijten wrote:
> On 2023-06-13 03:09:41, Dmitry Baryshkov wrote:
>> Each MERGE_3D block has just two registers. Correct the block length
>> accordingly.
>>
>> Fixes: 4369c93cf36b ("drm/msm/dpu: initial support for merge3D hardware block")
>> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
> 
> Indeed, and that patch wasn't even introducing the register writes -
> this only happened in commit 9ffd0e8569937 ("drm/msm/dpu: setup merge
> modes in merge_3d block").

Yep. Vendor dts declares merge 3d block length to be 0x100, which I 
blindly copied.

> 
> Reviewed-by: Marijn Suijten <marijn.suijten at somainline.org>
> 
>> ---
>>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
>> index 36ba3f58dcdf..0de507d4d7b7 100644
>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
>> @@ -508,7 +508,7 @@ static const struct dpu_pingpong_sub_blks sc7280_pp_sblk = {
>>   #define MERGE_3D_BLK(_name, _id, _base) \
>>   	{\
>>   	.name = _name, .id = _id, \
>> -	.base = _base, .len = 0x100, \
>> +	.base = _base, .len = 0x8, \
>>   	.features = MERGE_3D_SM8150_MASK, \
>>   	.sblk = NULL \
>>   	}
>> -- 
>> 2.39.2
>>

-- 
With best wishes
Dmitry



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