Re: [PATCH 2/2] drm/edid: Add alternate clock for SMPTE 4K

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On 12/11/2019 08:53, Wayne Lin wrote:
> [Why]
> In hdmi_mode_alternate_clock(), it adds an exception for VIC 4
> mode (4096x2160@24) due to there is no alternate clock defined for
> that mode in HDMI1.4b. But HDMI2.0 adds 23.98Hz for that mode.
> 
> [How]
> Remove the exception

Shouldn't it be only bypassed when the sink is HDMI2 ?

Neil

> 
> Signed-off-by: Wayne Lin <Wayne.Lin@xxxxxxx>
> ---
>  drivers/gpu/drm/drm_edid.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
> index fcd7ae29049d..ed2782c53a93 100644
> --- a/drivers/gpu/drm/drm_edid.c
> +++ b/drivers/gpu/drm/drm_edid.c
> @@ -3126,9 +3126,6 @@ static enum hdmi_picture_aspect drm_get_hdmi_aspect_ratio(const u8 video_code)
>  static unsigned int
>  hdmi_mode_alternate_clock(const struct drm_display_mode *hdmi_mode)
>  {
> -	if (hdmi_mode->vdisplay == 4096 && hdmi_mode->hdisplay == 2160)
> -		return hdmi_mode->clock;
> -
>  	return cea_mode_alternate_clock(hdmi_mode);
>  }
>  
> 

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