Attachment 99983 Details for Bug 73911 – fix

[patch] fix

0001-drm-radeon-atom-fix-dithering-on-certain-panels.patch (text/plain), 1.38 KB, created by Alex Deucher on 2014-05-27 20:44:15 UTC

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Creator: Alex Deucher

Created: 2014-05-27 20:44:15 UTC

Size: 1.38 KB

patch

obsolete

>From d8b8c19de47cbda1551b536f212bf22b2da970e6 Mon Sep 17 00:00:00 2001
>From: Alex Deucher <alexander.deucher@amd.com>
>Date: Tue, 27 May 2014 16:40:51 -0400
>Subject: [PATCH] drm/radeon/atom: fix dithering on certain panels
>
>We need to specify the encoder mode as LVDS for eDP
>when using the Crtc_Source atom table in order to properly
>set up the FMT hardware.
>
>bug:
>https://bugs.freedesktop.org/show_bug.cgi?id=73911
>
>Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
>Cc: stable@vger.kernel.org
>---
> drivers/gpu/drm/radeon/atombios_encoders.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
>diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
>index e6eb509..2b29084 100644
>--- a/drivers/gpu/drm/radeon/atombios_encoders.c
>+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
>@@ -1884,8 +1884,11 @@ atombios_set_encoder_crtc_source(struct drm_encoder *encoder)
> 					args.v2.ucEncodeMode = ATOM_ENCODER_MODE_CRT;
> 				else
> 					args.v2.ucEncodeMode = atombios_get_encoder_mode(encoder);
>-			} else
>+			} else if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
>+				args.v2.ucEncodeMode = ATOM_ENCODER_MODE_LVDS;
>+			} else {
> 				args.v2.ucEncodeMode = atombios_get_encoder_mode(encoder);
>+			}
> 			switch (radeon_encoder->encoder_id) {
> 			case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
> 			case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
>-- 
>1.8.3.1
>

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Attachments on bug 73911: 92587 | 92588 | 92590 | 92591 | 92592 | 93321 | 96751 | 99983

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