[PATCH 1/7] drm/msm/dpu: enable PINGPONG TE operations only when supported by HW

[Dmitry Baryshkov]

On 27/07/2023 23:05, Marijn Suijten wrote:
> On 2023-07-27 19:20:58, Dmitry Baryshkov wrote:
>> The DPU_PINGPONG_TE bit is set for all PINGPONG blocks on DPU < 5.0.
>> Rather than checking for the flag, check for the presense of the
>> corresponding interrupt line.
>>
>> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
>> ---
>>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c
>> index 9298c166b213..912a3bdf8ad4 100644
>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c
>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c
>> @@ -296,7 +296,7 @@ struct dpu_hw_pingpong *dpu_hw_pingpong_init(const struct dpu_pingpong_cfg *cfg,
>>   	c->idx = cfg->id;
>>   	c->caps = cfg;
> 
> In hindsight, maybe there's one patch missing from this series.  You
> inlined _setup_intf_ops() later, but there's no patch inlining
> _setup_pingpong_ops() which looks to be required for applying this
> patch.

Yes, I missed it somehow.

> 
> - Marijn
> 
>>   
>> -	if (test_bit(DPU_PINGPONG_TE, &cfg->features)) {
>> +	if (cfg->intr_rdptr) {
>>   		c->ops.enable_tearcheck = dpu_hw_pp_enable_te;
>>   		c->ops.disable_tearcheck = dpu_hw_pp_disable_te;
>>   		c->ops.connect_external_te = dpu_hw_pp_connect_external_te;
>> -- 
>> 2.39.2
>>

-- 
With best wishes
Dmitry