From: Alex Deucher <alexander.deuc...@amd.com>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit 642528355c694f5ed68f6bff9ff520326a249f99 upstream.

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.deuc...@amd.com>
Signed-off-by: Jiri Slaby <jsl...@suse.cz>
---
 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 7bb7074a131f..583345636d4b 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -1910,8 +1910,11 @@ 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:
-- 
2.0.0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to