linux-kernel - Re: [PATCH v4 07/10] drm/msm/dsi: Remove custom DSI config handling

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Date:   Tue, 14 Mar 2023 14:05:22 +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 v4 07/10] drm/msm/dsi: Remove custom DSI config handling

On 2023-03-14 13:13:45, Konrad Dybcio wrote:
> Now that the only user is handled by common code, remove the option to
> specify custom handlers through match data.
> 
> This is effectively a revert of commit:
> 5ae15e76271 ("drm/msm/dsi: Allow to specify dsi config as pdata")
> 
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> Reviewed-by: Marijn Suijten <marijn.suijten@...ainline.org>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> ---
>  drivers/gpu/drm/msm/dsi/dsi.c      | 4 ++--
>  drivers/gpu/drm/msm/dsi/dsi_cfg.h  | 3 ---
>  drivers/gpu/drm/msm/dsi/dsi_host.c | 4 ----
>  3 files changed, 2 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/dsi/dsi.c b/drivers/gpu/drm/msm/dsi/dsi.c
> index f761973e4cba..baab79ab6e74 100644
> --- a/drivers/gpu/drm/msm/dsi/dsi.c
> +++ b/drivers/gpu/drm/msm/dsi/dsi.c
> @@ -172,10 +172,10 @@ static int dsi_dev_remove(struct platform_device *pdev)
>  }
>  
>  static const struct of_device_id dt_match[] = {
> -	{ .compatible = "qcom,mdss-dsi-ctrl", .data = NULL /* autodetect cfg */ },
> +	{ .compatible = "qcom,mdss-dsi-ctrl" },
>  
>  	/* Deprecated, don't use */
> -	{ .compatible = "qcom,dsi-ctrl-6g-qcm2290", .data = NULL },
> +	{ .compatible = "qcom,dsi-ctrl-6g-qcm2290" },
>  	{}
>  };
>  
> diff --git a/drivers/gpu/drm/msm/dsi/dsi_cfg.h b/drivers/gpu/drm/msm/dsi/dsi_cfg.h
> index 8772a3631ac1..91bdaf50bb1a 100644
> --- a/drivers/gpu/drm/msm/dsi/dsi_cfg.h
> +++ b/drivers/gpu/drm/msm/dsi/dsi_cfg.h
> @@ -65,8 +65,5 @@ struct msm_dsi_cfg_handler {
>  
>  const struct msm_dsi_cfg_handler *msm_dsi_cfg_get(u32 major, u32 minor);
>  
> -/* Non autodetect configs */
> -extern const struct msm_dsi_cfg_handler qcm2290_dsi_cfg_handler;
> -

Probably the wrong `fixup!` commit: this should have been part of patch
6 where the struct is removed, not patch 7 (this patch).

- Marijn

>  #endif /* __MSM_DSI_CFG_H__ */
>  
> diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
> index 9cfb9e91bfea..961689a255c4 100644
> --- a/drivers/gpu/drm/msm/dsi/dsi_host.c
> +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
> @@ -214,10 +214,6 @@ static const struct msm_dsi_cfg_handler *dsi_get_config(
>  	int ret;
>  	u32 major = 0, minor = 0;
>  
> -	cfg_hnd = device_get_match_data(dev);
> -	if (cfg_hnd)
> -		return cfg_hnd;
> -
>  	ahb_clk = msm_clk_get(msm_host->pdev, "iface");
>  	if (IS_ERR(ahb_clk)) {
>  		pr_err("%s: cannot get interface clock\n", __func__);
> 
> -- 
> 2.39.2
>