linux-kernel - Re: [PATCH 2/2] drm/msm/disp/dpu1: add support for display on SM6115

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Date:   Wed, 23 Nov 2022 01:54:07 +0200
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Adam Skladowski <a39.skl@...il.com>
Cc:     phone-devel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht,
        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>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Kalyan Thota <quic_kalyant@...cinc.com>,
        Jessica Zhang <quic_jesszhan@...cinc.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>,
        Loic Poulain <loic.poulain@...aro.org>,
        Adam Skladowski <a_skl39@...tonmail.com>,
        Stephen Boyd <swboyd@...omium.org>,
        Jason Wang <wangborong@...rlc.com>,
        Vinod Polimera <quic_vpolimer@...cinc.com>,
        Vinod Koul <vkoul@...nel.org>,
        Douglas Anderson <dianders@...omium.org>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] drm/msm/disp/dpu1: add support for display on SM6115

On 20/11/2022 15:37, Adam Skladowski wrote:
> Add required display hw catalog changes for SM6115.
> 
> Signed-off-by: Adam Skladowski <a39.skl@...il.com>
> ---
>   .../gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c    | 87 +++++++++++++++++++
>   .../gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h    |  1 +
>   drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c       |  1 +
>   drivers/gpu/drm/msm/msm_mdss.c                |  5 ++
>   4 files changed, 94 insertions(+)
> 

[skipped]

> diff --git a/drivers/gpu/drm/msm/msm_mdss.c b/drivers/gpu/drm/msm/msm_mdss.c
> index 6a4549ef34d4..86b28add1fff 100644
> --- a/drivers/gpu/drm/msm/msm_mdss.c
> +++ b/drivers/gpu/drm/msm/msm_mdss.c
> @@ -280,6 +280,10 @@ static int msm_mdss_enable(struct msm_mdss *msm_mdss)
>   		/* UBWC_2_0 */
>   		msm_mdss_setup_ubwc_dec_20(msm_mdss, 0x1e);
>   		break;
> +	case DPU_HW_VER_630:
> +		/* UBWC_2_0 */
> +		msm_mdss_setup_ubwc_dec_20(msm_mdss, 0x11f);
> +		break;

According to the vendor dtsi the sm6115 is UBWC 1.0, not 2.0

Could you please doublecheck?

Looks good to me otherwise.

>   	case DPU_HW_VER_720:
>   		msm_mdss_setup_ubwc_dec_40(msm_mdss, UBWC_3_0, 6, 1, 1, 1);
>   		break;
> @@ -509,6 +513,7 @@ static const struct of_device_id mdss_dt_match[] = {
>   	{ .compatible = "qcom,sc7180-mdss" },
>   	{ .compatible = "qcom,sc7280-mdss" },
>   	{ .compatible = "qcom,sc8180x-mdss" },
> +	{ .compatible = "qcom,sm6115-mdss" },
>   	{ .compatible = "qcom,sm8150-mdss" },
>   	{ .compatible = "qcom,sm8250-mdss" },
>   	{}

-- 
With best wishes
Dmitry