linux-kernel - Re: [PATCH 3/3] drm/msm/dpu: Introduce SC8280XP

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Date:   Wed, 10 Aug 2022 23:28:02 -0500
From:   Steev Klimaszewski <steev@...i.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.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 3/3] drm/msm/dpu: Introduce SC8280XP

Hi Bjorn,


On Wed, Aug 10, 2022 at 10:58 PM Bjorn Andersson
<bjorn.andersson@...aro.org> wrote:
>
> The Qualcomm SC8280XP platform contains DPU version 8.0.0, has 9
> interfaces, 2 DSI controllers and 4 DisplayPort controllers. Extend the
> necessary definitions and describe the DPU in the SC8280XP.
>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> ---
>
> Note that MSM_DP_CONTROLLER_3 is also defined in the DP series and as such a
> trivial conflict will occur when merging the latter of the two series.
>
>  .../gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c    | 211 ++++++++++++++++++
>  .../gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h    |   1 +
>  .../gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c |  18 ++
>  .../gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h |   3 +
>  drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h   |   2 +
>  drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c       |   1 +
>  drivers/gpu/drm/msm/msm_drv.h                 |   1 +
>  drivers/gpu/drm/msm/msm_mdss.c                |   2 +
>  8 files changed, 239 insertions(+)
>
<snip>
>
> diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
> index b3689a2d27d7..5978c6e26a1e 100644
> --- a/drivers/gpu/drm/msm/msm_drv.h
> +++ b/drivers/gpu/drm/msm/msm_drv.h
> @@ -55,6 +55,7 @@ enum msm_dp_controller {
>         MSM_DP_CONTROLLER_0,
>         MSM_DP_CONTROLLER_1,
>         MSM_DP_CONTROLLER_2,
> +       MSM_DP_CONTROLLER_3,
>         MSM_DP_CONTROLLER_COUNT,
>  };
>
This seems to also be part of
https://lore.kernel.org/r/20220810040745.3582985-6-bjorn.andersson@linaro.org
(but only th msm_drv.h hunk

>
> diff --git a/drivers/gpu/drm/msm/msm_mdss.c b/drivers/gpu/drm/msm/msm_mdss.c
> index e13c5c12b775..7c391fab6263 100644
> --- a/drivers/gpu/drm/msm/msm_mdss.c
> +++ b/drivers/gpu/drm/msm/msm_mdss.c
> @@ -208,6 +208,7 @@ static int msm_mdss_enable(struct msm_mdss *msm_mdss)
>                 writel_relaxed(0x420, msm_mdss->mmio + UBWC_STATIC);
>                 break;
>         case DPU_HW_VER_600:
> +       case DPU_HW_VER_800:
>                 /* TODO: 0x102e for LP_DDR4 */
>                 writel_relaxed(0x103e, msm_mdss->mmio + UBWC_STATIC);
>                 writel_relaxed(2, msm_mdss->mmio + UBWC_CTRL_2);
> @@ -445,6 +446,7 @@ static const struct of_device_id mdss_dt_match[] = {
>         { .compatible = "qcom,sc7180-mdss" },
>         { .compatible = "qcom,sc7280-mdss" },
>         { .compatible = "qcom,sc8180x-mdss" },
> +       { .compatible = "qcom,sc8280xp-mdss" },
>         { .compatible = "qcom,sm8150-mdss" },
>         { .compatible = "qcom,sm8250-mdss" },
>         {}
> --
> 2.35.1
>
-- steev