Re: [PATCH AUTOSEL 4.9 08/17] drm/edid: Add 6 bpc quirk for BOE panel.

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On Tue, Nov 13, 2018 at 12:52:14AM -0500, Sasha Levin wrote:
> From: "Lee, Shawn C" <shawn.c.lee@xxxxxxxxx>
> 
> [ Upstream commit 922dceff8dc1fb4dafc9af78139ba65671408103 ]
> 
> BOE panel (ID: 0x0771) that reports "DFP 1.x compliant TMDS".
> But it's 6bpc panel only instead of 8 bpc.
> 
> Add panel ID to edid quirk list and set 6 bpc as default to
> work around this issue.
> 
> Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
> Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
> Cc: Gustavo Padovan <gustavo@xxxxxxxxxxx>
> Cc: Cooper Chiou <cooper.chiou@xxxxxxxxx>
> Signed-off-by: Lee, Shawn C <shawn.c.lee@xxxxxxxxx>>
> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> Link: https://patchwork.freedesktop.org/patch/msgid/1540792173-7288-1-git-send-email-shawn.c.lee@xxxxxxxxx
> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

Given that I'm not a fan of AUTOSEL at all: This one here is correctly
cherry-picked for stable, ack.
-Daniel

> ---
>  drivers/gpu/drm/drm_edid.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
> index 83d2f43b5a2f..c93dcfedc219 100644
> --- a/drivers/gpu/drm/drm_edid.c
> +++ b/drivers/gpu/drm/drm_edid.c
> @@ -116,6 +116,9 @@ static const struct edid_quirk {
>  	/* SDC panel of Lenovo B50-80 reports 8 bpc, but is a 6 bpc panel */
>  	{ "SDC", 0x3652, EDID_QUIRK_FORCE_6BPC },
>  
> +	/* BOE model 0x0771 reports 8 bpc, but is a 6 bpc panel */
> +	{ "BOE", 0x0771, EDID_QUIRK_FORCE_6BPC },
> +
>  	/* Belinea 10 15 55 */
>  	{ "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 },
>  	{ "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 },
> -- 
> 2.17.1
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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