On Tue, Nov 13, 2018 at 12:52:14AM -0500, Sasha Levin wrote:
> From: "Lee, Shawn C" <[email protected]>
>
> [ 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 <[email protected]>
> Cc: Maarten Lankhorst <[email protected]>
> Cc: Gustavo Padovan <[email protected]>
> Cc: Cooper Chiou <[email protected]>
> Signed-off-by: Lee, Shawn C <[email protected]>>
> Signed-off-by: Daniel Vetter <[email protected]>
> Link:
> https://patchwork.freedesktop.org/patch/msgid/[email protected]
> Signed-off-by: Sasha Levin <[email protected]>
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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