Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1565495

Re: [PATCH] drm/mediatek: hdmi: Filter interlaced resolutions

From CK Hu <ck.hu@mediatek.com>
Newsgroups linux.kernel
Subject Re: [PATCH] drm/mediatek: hdmi: Filter interlaced resolutions
Date 2017-01-24 07:20 +0100
Message-ID <t32Cu-Fq-13@gated-at.bofh.it> (permalink)
References <t31Gq-8u2-13@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


Hi, Bibby:

On Tue, 2017-01-24 at 13:10 +0800, Bibby Hsieh wrote:
> Current Mediatek DRM driver does not support interlaced mode, and
> will hang if such resolution is used: Filter those to prevent
> kernel hangs, until the DRM driver is fixed properly.
> 
> Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>

Acked-by: CK Hu <ck.hu@mediatek.com>

> ---
>  drivers/gpu/drm/mediatek/mtk_hdmi.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
> index 0e8c4d9..e33678d 100644
> --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
> @@ -1244,6 +1244,8 @@ static int mtk_hdmi_conn_mode_valid(struct drm_connector *conn,
>  			return MODE_BAD;
>  	}
>  
> +	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
> +		return MODE_NO_INTERLACE;
>  	if (mode->clock < 27000)
>  		return MODE_CLOCK_LOW;
>  	if (mode->clock > 297000)

Back to linux.kernel | Previous | NextPrevious in thread | Find similar | Unroll thread


Thread

[PATCH] drm/mediatek: hdmi: Filter interlaced resolutions Bibby Hsieh <bibby.hsieh@mediatek.com> - 2017-01-24 06:20 +0100
  Re: [PATCH] drm/mediatek: hdmi: Filter interlaced resolutions CK Hu <ck.hu@mediatek.com> - 2017-01-24 07:20 +0100

csiph-web