linux-kernel - Re: [PATCH v3 05/10] drm/msm/dsi: dsi_cfg: Merge SC7180 config into SDM845

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Message-ID: <20230313235805.2ic4xewn2jf2ffir@SoMainline.org>
Date:   Tue, 14 Mar 2023 00:58:05 +0100
From:   Marijn Suijten <marijn.suijten@...ainline.org>
To:     Konrad Dybcio <konrad.dybcio@...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@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Krishna Manikandan <quic_mkrishn@...cinc.com>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh@...nel.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 v3 05/10] drm/msm/dsi: dsi_cfg: Merge SC7180 config into
 SDM845

On 2023-03-07 14:01:43, Konrad Dybcio wrote:
> The configs are identical, other than the number of *maximum* DSI
> hosts allowed. This isn't an issue, unless somebody deliberately
> tries to access the inexistent host by adding a dt node for it.
> 
> Remove the SC7180 struct and point the hw revision match to the
> SDM845's one. On a note, this could have been done back when
> 7180 support was introduced.

Maybe differences were expected, but then sdm845_dsi_cfg is used on many
other revisions.

> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Reviewed-by: Marijn Suijten <marijn.suijten@...ainline.org>

> ---
>  drivers/gpu/drm/msm/dsi/dsi_cfg.c | 15 ++-------------
>  1 file changed, 2 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/dsi/dsi_cfg.c b/drivers/gpu/drm/msm/dsi/dsi_cfg.c
> index d39521850018..6d4b2ce4b918 100644
> --- a/drivers/gpu/drm/msm/dsi/dsi_cfg.c
> +++ b/drivers/gpu/drm/msm/dsi/dsi_cfg.c
> @@ -169,7 +169,7 @@ static const struct msm_dsi_config sdm845_dsi_cfg = {
>  	.bus_clk_names = dsi_v2_4_clk_names,
>  	.num_bus_clks = ARRAY_SIZE(dsi_v2_4_clk_names),
>  	.io_start = {
> -		{ 0xae94000, 0xae96000 },
> +		{ 0xae94000, 0xae96000 }, /* SDM845 / SDM670 / SC7180 */
>  	},
>  };
>  
> @@ -188,17 +188,6 @@ static const struct msm_dsi_config sm8550_dsi_cfg = {
>  	},
>  };
>  
> -static const struct msm_dsi_config sc7180_dsi_cfg = {
> -	.io_offset = DSI_6G_REG_SHIFT,
> -	.regulator_data = dsi_v2_4_regulators,
> -	.num_regulators = ARRAY_SIZE(dsi_v2_4_regulators),
> -	.bus_clk_names = dsi_v2_4_clk_names,
> -	.num_bus_clks = ARRAY_SIZE(dsi_v2_4_clk_names),
> -	.io_start = {
> -		{ 0xae94000 },
> -	},
> -};
> -
>  static const struct regulator_bulk_data sc7280_dsi_regulators[] = {
>  	{ .supply = "vdda", .init_load_uA = 8350 },	/* 1.2 V */
>  };
> @@ -299,7 +288,7 @@ static const struct msm_dsi_cfg_handler dsi_cfg_handlers[] = {
>  	{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V2_4_0,
>  		&sdm845_dsi_cfg, &msm_dsi_6g_v2_host_ops},
>  	{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V2_4_1,
> -		&sc7180_dsi_cfg, &msm_dsi_6g_v2_host_ops},
> +		&sdm845_dsi_cfg, &msm_dsi_6g_v2_host_ops},
>  	{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V2_5_0,
>  		&sc7280_dsi_cfg, &msm_dsi_6g_v2_host_ops},
>  	{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V2_6_0,
> 
> -- 
> 2.39.2
>