Re: [PATCH 15/45] drm/msm/dp: convert dp_display_set_mode() to use dp_panel argument

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On Thu, Dec 05, 2024 at 08:31:46PM -0800, Abhinav Kumar wrote:
> Convert dp_display_set_mode() to use the dp_panel passed to it
> as an argument rather than the cached one in dp_display_private.

Why?

> 
> Signed-off-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
> ---
>  drivers/gpu/drm/msm/dp/dp_display.c | 60 ++++++++++++++++++-------------------
>  1 file changed, 30 insertions(+), 30 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
> index b506159191184a2a2c83d0735260ac040a33be98..5fa6c003cf6c51eae77573549a555a00dc33f476 100644
> --- a/drivers/gpu/drm/msm/dp/dp_display.c
> +++ b/drivers/gpu/drm/msm/dp/dp_display.c
> @@ -798,16 +798,38 @@ static int msm_dp_init_sub_modules(struct msm_dp_display_private *dp)
>  }
>  
>  static int msm_dp_display_set_mode(struct msm_dp *msm_dp_display,
> -			       struct msm_dp_display_mode *mode)
> +				   const struct drm_display_mode *adjusted_mode,
> +				   struct msm_dp_panel *msm_dp_panel)
>  {
> -	struct msm_dp_display_private *dp;
> +	struct msm_dp_display_mode msm_dp_mode;
>  
> -	dp = container_of(msm_dp_display, struct msm_dp_display_private, msm_dp_display);
> +	memset(&msm_dp_mode, 0x0, sizeof(struct msm_dp_display_mode));
> +
> +	if (msm_dp_display_check_video_test(msm_dp_display))
> +		msm_dp_mode.bpp = msm_dp_display_get_test_bpp(msm_dp_display);
> +	else /* Default num_components per pixel = 3 */
> +		msm_dp_mode.bpp = msm_dp_panel->connector->display_info.bpc * 3;
> +
> +	if (!msm_dp_mode.bpp)
> +		msm_dp_mode.bpp = 24; /* Default bpp */
> +
> +	drm_mode_copy(&msm_dp_mode.drm_mode, adjusted_mode);
> +
> +	msm_dp_mode.v_active_low =
> +		!!(msm_dp_mode.drm_mode.flags & DRM_MODE_FLAG_NVSYNC);
> +
> +	msm_dp_mode.h_active_low =
> +		!!(msm_dp_mode.drm_mode.flags & DRM_MODE_FLAG_NHSYNC);
> +
> +	msm_dp_mode.out_fmt_is_yuv_420 =
> +		drm_mode_is_420_only(&msm_dp_display->connector->display_info, adjusted_mode) &&
> +		msm_dp_panel->vsc_sdp_supported;
> +
> +	drm_mode_copy(&msm_dp_panel->msm_dp_mode.drm_mode, &msm_dp_mode.drm_mode);
> +	msm_dp_panel->msm_dp_mode.bpp = msm_dp_mode.bpp;
> +	msm_dp_panel->msm_dp_mode.out_fmt_is_yuv_420 = msm_dp_mode.out_fmt_is_yuv_420;
> +	msm_dp_panel_init_panel_info(msm_dp_panel);
>  
> -	drm_mode_copy(&dp->panel->msm_dp_mode.drm_mode, &mode->drm_mode);
> -	dp->panel->msm_dp_mode.bpp = mode->bpp;
> -	dp->panel->msm_dp_mode.out_fmt_is_yuv_420 = mode->out_fmt_is_yuv_420;
> -	msm_dp_panel_init_panel_info(dp->panel);
>  	return 0;
>  }
>  
> @@ -1662,34 +1684,12 @@ void msm_dp_display_mode_set(struct msm_dp *dp,
>  {
>  	struct msm_dp_display_private *msm_dp_display;
>  	struct msm_dp_panel *msm_dp_panel;
> -	struct msm_dp_display_mode msm_dp_mode;
>  
>  	msm_dp_display = container_of(dp, struct msm_dp_display_private, msm_dp_display);
>  	msm_dp_panel = msm_dp_display->panel;
>  
> -	memset(&msm_dp_mode, 0x0, sizeof(struct msm_dp_display_mode));
> -
> -	if (msm_dp_display_check_video_test(dp))
> -		msm_dp_mode.bpp = msm_dp_display_get_test_bpp(dp);
> -	else /* Default num_components per pixel = 3 */
> -		msm_dp_mode.bpp = dp->connector->display_info.bpc * 3;
> -
> -	if (!msm_dp_mode.bpp)
> -		msm_dp_mode.bpp = 24; /* Default bpp */
> -
> -	drm_mode_copy(&msm_dp_mode.drm_mode, adjusted_mode);
> -
> -	msm_dp_mode.v_active_low =
> -		!!(msm_dp_mode.drm_mode.flags & DRM_MODE_FLAG_NVSYNC);
> -
> -	msm_dp_mode.h_active_low =
> -		!!(msm_dp_mode.drm_mode.flags & DRM_MODE_FLAG_NHSYNC);
> -
> -	msm_dp_mode.out_fmt_is_yuv_420 =
> -		drm_mode_is_420_only(&dp->connector->display_info, adjusted_mode) &&
> -		msm_dp_panel->vsc_sdp_supported;
>  
> -	msm_dp_display_set_mode(dp, &msm_dp_mode);
> +	msm_dp_display_set_mode(dp, adjusted_mode, msm_dp_panel);
>  
>  	/* populate wide_bus_support to different layers */
>  	msm_dp_display->ctrl->wide_bus_en =
> 
> -- 
> 2.34.1
> 

-- 
With best wishes
Dmitry




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