linux-kernel - Re: [PATCH v3 5/7] drm/msm/dp: delete EV_HPD_INIT

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Message-ID: <CAA8EJprKA=H0iFOPKiotqQB-b5r4NYdEDdudzJeDU0qBxMkF_A@mail.gmail.com>
Date:   Sat, 16 Sep 2023 04:09:48 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Kuogee Hsieh <quic_khsieh@...cinc.com>
Cc:     dri-devel@...ts.freedesktop.org, robdclark@...il.com,
        sean@...rly.run, swboyd@...omium.org, dianders@...omium.org,
        vkoul@...nel.org, daniel@...ll.ch, airlied@...il.com,
        agross@...nel.org, andersson@...nel.org, quic_abhinavk@...cinc.com,
        quic_jesszhan@...cinc.com, quic_sbillaka@...cinc.com,
        marijn.suijten@...ainline.org, freedreno@...ts.freedesktop.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 5/7] drm/msm/dp: delete EV_HPD_INIT_SETUP

On Sat, 16 Sept 2023 at 00:38, Kuogee Hsieh <quic_khsieh@...cinc.com> wrote:
>
> EV_HPD_INIT_SETUP flag is used to trigger the initialization of external
> DP host controller. Since external DP host controller initialization had
> been incorporated into pm_runtime_resume(), this flag become obsolete.

became

> Lets get rid of it.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>

>
> Changes in v3:
> -- drop EV_HPD_INIT_SETUP and msm_dp_irq_postinstall()

This is not a changelog of the patch. It is a short description of the
patch itself. Please describe changes.

>
> Signed-off-by: Kuogee Hsieh <quic_khsieh@...cinc.com>
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c |  4 ----
>  drivers/gpu/drm/msm/dp/dp_display.c     | 16 ----------------
>  drivers/gpu/drm/msm/msm_drv.h           |  5 -----
>  3 files changed, 25 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> index aa8499d..71d0670 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> @@ -870,7 +870,6 @@ static int dpu_irq_postinstall(struct msm_kms *kms)
>  {
>         struct msm_drm_private *priv;
>         struct dpu_kms *dpu_kms = to_dpu_kms(kms);
> -       int i;
>
>         if (!dpu_kms || !dpu_kms->dev)
>                 return -EINVAL;
> @@ -879,9 +878,6 @@ static int dpu_irq_postinstall(struct msm_kms *kms)
>         if (!priv)
>                 return -EINVAL;
>
> -       for (i = 0; i < ARRAY_SIZE(priv->dp); i++)
> -               msm_dp_irq_postinstall(priv->dp[i]);
> -
>         return 0;
>  }
>
> diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
> index e7af7f7..b6992202 100644
> --- a/drivers/gpu/drm/msm/dp/dp_display.c
> +++ b/drivers/gpu/drm/msm/dp/dp_display.c
> @@ -55,7 +55,6 @@ enum {
>  enum {
>         EV_NO_EVENT,
>         /* hpd events */
> -       EV_HPD_INIT_SETUP,
>         EV_HPD_PLUG_INT,
>         EV_IRQ_HPD_INT,
>         EV_HPD_UNPLUG_INT,
> @@ -1092,8 +1091,6 @@ static int hpd_event_thread(void *data)
>                 spin_unlock_irqrestore(&dp_priv->event_lock, flag);
>
>                 switch (todo->event_id) {
> -               case EV_HPD_INIT_SETUP:
> -                       break;
>                 case EV_HPD_PLUG_INT:
>                         dp_hpd_plug_handle(dp_priv, todo->data);
>                         break;
> @@ -1469,19 +1466,6 @@ void __exit msm_dp_unregister(void)
>         platform_driver_unregister(&dp_display_driver);
>  }
>
> -void msm_dp_irq_postinstall(struct msm_dp *dp_display)
> -{
> -       struct dp_display_private *dp;
> -
> -       if (!dp_display)
> -               return;
> -
> -       dp = container_of(dp_display, struct dp_display_private, dp_display);
> -
> -       if (!dp_display->is_edp)
> -               dp_add_event(dp, EV_HPD_INIT_SETUP, 0, 0);
> -}
> -
>  bool msm_dp_wide_bus_available(const struct msm_dp *dp_display)
>  {
>         struct dp_display_private *dp;
> diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
> index e13a8cb..ff8be59 100644
> --- a/drivers/gpu/drm/msm/msm_drv.h
> +++ b/drivers/gpu/drm/msm/msm_drv.h
> @@ -381,7 +381,6 @@ int __init msm_dp_register(void);
>  void __exit msm_dp_unregister(void);
>  int msm_dp_modeset_init(struct msm_dp *dp_display, struct drm_device *dev,
>                          struct drm_encoder *encoder);
> -void msm_dp_irq_postinstall(struct msm_dp *dp_display);
>  void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_display);
>
>  void msm_dp_debugfs_init(struct msm_dp *dp_display, struct drm_minor *minor);
> @@ -402,10 +401,6 @@ static inline int msm_dp_modeset_init(struct msm_dp *dp_display,
>         return -EINVAL;
>  }
>
> -static inline void msm_dp_irq_postinstall(struct msm_dp *dp_display)
> -{
> -}
> -
>  static inline void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_display)
>  {
>  }
> --
> 2.7.4
>


-- 
With best wishes
Dmitry