From: ck.hu@mediatek.com (CK Hu)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] drm/mediatek: hdmi: Filter interlaced resolutions
Date: Tue, 24 Jan 2017 14:12:45 +0800 [thread overview]
Message-ID: <1485238365.30572.5.camel@mtksdaap41> (raw)
In-Reply-To: <1485234604-19889-1-git-send-email-bibby.hsieh@mediatek.com>
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)
next prev parent reply other threads:[~2017-01-24 6:12 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-24 5:10 [PATCH] drm/mediatek: hdmi: Filter interlaced resolutions Bibby Hsieh
2017-01-24 6:12 ` CK Hu [this message]
2017-05-23 9:28 ` CK Hu
2017-05-23 13:12 ` Daniel Vetter
2017-05-24 9:20 ` CK Hu
2017-05-24 12:24 ` Daniel Vetter
2017-05-25 3:38 ` CK Hu
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