linux-kernel - Re: [PATCH v5 7/7] drm/msm/dp: Add sc8180x DP controllers

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Message-ID: <ce19f893-d805-1285-4bc2-445853498006@linaro.org>
Date:   Thu, 25 Nov 2021 16:13:49 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Abhinav Kumar <abhinavk@...eaurora.org>,
        Kalyan Thota <kalyan_t@...eaurora.org>,
        Kuogee Hsieh <khsieh@...eaurora.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Stephen Boyd <swboyd@...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 v5 7/7] drm/msm/dp: Add sc8180x DP controllers

On 17/10/2021 01:18, Bjorn Andersson wrote:
> The sc8180x has 2 DP and 1 eDP controllers, add support for these to the
> DP driver.
> 
> Link: https://lore.kernel.org/linux-arm-msm/20210725042436.3967173-7-bjorn.andersson@linaro.org/
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>

It seems that SC8180x DPU support was never merged (because of 
hw_interrupt rework, because of hw_catalog TODOs and FIXMEs). Could you 
please post new iteration of that patchset, squashing this one into it?


> ---
> 
> Changes since v4:
> - Use the MSM_DP_CONTROLLER_n enums
> - const the msm_dp_desc array
> 
>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c |  6 +++---
>   drivers/gpu/drm/msm/dp/dp_display.c            | 11 +++++++++++
>   2 files changed, 14 insertions(+), 3 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 47d5d71eb5d3..0ac6a79e8af9 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
> @@ -918,13 +918,13 @@ static const struct dpu_intf_cfg sc7280_intf[] = {
>   };
>   
>   static const struct dpu_intf_cfg sc8180x_intf[] = {
> -	INTF_BLK("intf_0", INTF_0, 0x6A000, INTF_DP, 0, 24, INTF_SC8180X_MASK, MDP_SSPP_TOP0_INTR, 24, 25),
> +	INTF_BLK("intf_0", INTF_0, 0x6A000, INTF_DP, MSM_DP_CONTROLLER_0, 24, INTF_SC8180X_MASK, MDP_SSPP_TOP0_INTR, 24, 25),
>   	INTF_BLK("intf_1", INTF_1, 0x6A800, INTF_DSI, 0, 24, INTF_SC8180X_MASK, MDP_SSPP_TOP0_INTR, 26, 27),
>   	INTF_BLK("intf_2", INTF_2, 0x6B000, INTF_DSI, 1, 24, INTF_SC8180X_MASK, MDP_SSPP_TOP0_INTR, 28, 29),
>   	/* INTF_3 is for MST, wired to INTF_DP 0 and 1, use dummy index until this is supported */
>   	INTF_BLK("intf_3", INTF_3, 0x6B800, INTF_DP, 999, 24, INTF_SC8180X_MASK, MDP_SSPP_TOP0_INTR, 30, 31),
> -	INTF_BLK("intf_4", INTF_4, 0x6C000, INTF_DP, 1, 24, INTF_SC8180X_MASK, MDP_SSPP_TOP0_INTR, 20, 21),
> -	INTF_BLK("intf_5", INTF_5, 0x6C800, INTF_DP, 2, 24, INTF_SC8180X_MASK, MDP_SSPP_TOP0_INTR, 22, 23),
> +	INTF_BLK("intf_4", INTF_4, 0x6C000, INTF_DP, MSM_DP_CONTROLLER_1, 24, INTF_SC8180X_MASK, MDP_SSPP_TOP0_INTR, 20, 21),
> +	INTF_BLK("intf_5", INTF_5, 0x6C800, INTF_DP, MSM_DP_CONTROLLER_2, 24, INTF_SC8180X_MASK, MDP_SSPP_TOP0_INTR, 22, 23),
>   };
>   
>   /*************************************************************
> diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
> index d3c9d7273354..70dcd4e6d466 100644
> --- a/drivers/gpu/drm/msm/dp/dp_display.c
> +++ b/drivers/gpu/drm/msm/dp/dp_display.c
> @@ -135,8 +135,19 @@ static const struct msm_dp_config sc7180_dp_cfg = {
>   	.num_descs = 1,
>   };
>   
> +static const struct msm_dp_config sc8180x_dp_cfg = {
> +	.descs = (const struct msm_dp_desc[]) {
> +		[MSM_DP_CONTROLLER_0] = { .io_start = 0x0ae90000, .connector_type = DRM_MODE_CONNECTOR_DisplayPort },
> +		[MSM_DP_CONTROLLER_1] = { .io_start = 0x0ae98000, .connector_type = DRM_MODE_CONNECTOR_DisplayPort },
> +		[MSM_DP_CONTROLLER_2] = { .io_start = 0x0ae9a000, .connector_type = DRM_MODE_CONNECTOR_eDP },
> +	},
> +	.num_descs = 3,
> +};
> +
>   static const struct of_device_id dp_dt_match[] = {
>   	{ .compatible = "qcom,sc7180-dp", .data = &sc7180_dp_cfg },
> +	{ .compatible = "qcom,sc8180x-dp", .data = &sc8180x_dp_cfg },
> +	{ .compatible = "qcom,sc8180x-edp", .data = &sc8180x_dp_cfg },
>   	{}
>   };
>   
> 


-- 
With best wishes
Dmitry