linux-kernel - Re: [PATCH] drm/msm/dpu: Set DPU_DATA_HCTL_EN for in INTF_SC7180

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Date:   Mon, 8 May 2023 14:26:35 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Marijn Suijten <marijn.suijten@...ainline.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Cc:     Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Kalyan Thota <quic_kalyant@...cinc.com>,
        Shubhashree Dhar <dhar@...eaurora.org>,
        Raviteja Tamatam <travitej@...eaurora.org>,
        Rob Clark <robdclark@...omium.org>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/msm/dpu: Set DPU_DATA_HCTL_EN for in INTF_SC7180_MASK

On 08/05/2023 13:57, Marijn Suijten wrote:
> On 2023-05-08 12:29:32, Konrad Dybcio wrote:
>> DPU5 and newer targets enable this unconditionally. Move it from the
>> SC7280 mask to the SC7180 one.
>>
>> Fixes: 7bdc0c4b8126 ("msm:disp:dpu1: add support for display for SC7180 target")
> 
> The flag only exists since 591e34a091d17 ("drm/msm/disp/dpu1: add
> support for display for SC7280 target"), and I don't know how bad it is
> if it was lacking when SC7180 was added?

I think 591e34a091d1 ("drm/msm/disp/dpu1: add support for display for 
SC7280 target") or 7e6ee55320f0 ("drm/msm/disp/dpu1: enable DATA_HCTL_EN 
for sc7280 target") would be more appropriate here.

With that in place:

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>


> 
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> 
> I wonder if this needs any Reported-by/Suggested-by, given that I found
> the DATA_COMPRESS discrepancy for your SM6375 patch (which was using
> SC7280 to have the HCTL mask) and Dmitry pointing out that HCTL needs to
> be in SC7180 entirely.
> 
> Fortunately none of this affects cmdmode :)
> 
> Reviewed-by: Marijn Suijten <marijn.suijten@...ainline.org>
> 
>> ---
>> Depends on:
>> https://lore.kernel.org/linux-arm-msm/20230405-add-dsc-support-v2-0-1072c70e9786@quicinc.com/
>> ---
>>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 7 +++++--
>>   1 file changed, 5 insertions(+), 2 deletions(-)
>>
>> 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 27420fc863d6..7ea8fd69d5fd 100644
>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
>> @@ -98,9 +98,12 @@
>>   #define INTF_SDM845_MASK (0)
>>   
>>   #define INTF_SC7180_MASK \
>> -	(BIT(DPU_INTF_INPUT_CTRL) | BIT(DPU_INTF_TE) | BIT(DPU_INTF_STATUS_SUPPORTED))
>> +	(BIT(DPU_INTF_INPUT_CTRL) | \
>> +	 BIT(DPU_INTF_TE) | \
>> +	 BIT(DPU_INTF_STATUS_SUPPORTED) | \
>> +	 BIT(DPU_DATA_HCTL_EN))
>>   
>> -#define INTF_SC7280_MASK INTF_SC7180_MASK | BIT(DPU_DATA_HCTL_EN) | BIT(DPU_INTF_DATA_COMPRESS)
>> +#define INTF_SC7280_MASK INTF_SC7180_MASK | BIT(DPU_INTF_DATA_COMPRESS)
>>   
>>   #define WB_SM8250_MASK (BIT(DPU_WB_LINE_MODE) | \
>>   			 BIT(DPU_WB_UBWC) | \
>>
>> ---
>> base-commit: c47189dee0decd9ecc1e65ae376ad6d4b0b7f1f2
>> change-id: 20230508-topic-hctl_en-3abb999a6c99
>>
>> Best regards,
>> -- 
>> Konrad Dybcio <konrad.dybcio@...aro.org>
>>

-- 
With best wishes
Dmitry