[PATCH] drm/mediatek: Fix warning about unhandled enum value

[CK Hu]

Hi, Sean:

On Wed, 2019-05-22 at 16:21 -0400, Sean Paul wrote:
> From: Sean Paul <seanpaul at chromium.org>
> 
> Fixes the following build warning:
> drivers/gpu/drm/mediatek/mtk_hdmi.c:327:2: warning: enumeration value ‘HDMI_INFOFRAME_TYPE_DRM’ not handled in switch [-Wswitch]
> 
> Introduced with the addition of HDMI_INFOFRAME_TYPE_DRM in the commit
> below, but the code really should have been future-proofed from the
> start.

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

> 
> Fixes: 2cdbfd66a829 ("drm: Enable HDR infoframe support")

I think "drm: Enable HDR infoframe support" exist only in drm-misc tree,
could you just merge this patch to "drm: Enable HDR infoframe support"?

Regards,
CK

> Cc: Uma Shankar <uma.shankar at intel.com>
> Cc: Shashank Sharma <shashank.sharma at intel.com>
> Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
> Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
> Cc: Maxime Ripard <maxime.ripard at bootlin.com>
> Cc: Sean Paul <sean at poorly.run>
> Cc: David Airlie <airlied at linux.ie>
> Cc: Daniel Vetter <daniel at ffwll.ch>
> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie at samsung.com>
> Cc: "Ville Syrjälä" <ville.syrjala at linux.intel.com>
> Cc: Hans Verkuil <hansverk at cisco.com>
> Cc: dri-devel at lists.freedesktop.org
> Cc: linux-fbdev at vger.kernel.org
> Signed-off-by: Sean Paul <seanpaul at chromium.org>
> ---
>  drivers/gpu/drm/mediatek/mtk_hdmi.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
> index e04e6c293d39..10cc9910f164 100644
> --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
> @@ -341,6 +341,9 @@ static void mtk_hdmi_hw_send_info_frame(struct mtk_hdmi *hdmi, u8 *buffer,
>  		ctrl_frame_en = VS_EN;
>  		ctrl_reg = GRL_ACP_ISRC_CTRL;
>  		break;
> +	default:
> +		dev_err(hdmi->dev, "Unknown infoframe type %d\n", frame_type);
> +		return;
>  	}
>  	mtk_hdmi_clear_bits(hdmi, ctrl_reg, ctrl_frame_en);
>  	mtk_hdmi_write(hdmi, GRL_INFOFRM_TYPE, frame_type);