[PATCH 3.12 036/101] drm/radeon: add missing crtc unlock when setting up the MC

From: Jiri Slaby
Date: Wed Dec 03 2014 - 06:27:46 EST


From: Alex Deucher <alexander.deucher@xxxxxxx>

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

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

commit f0d7bfb9407fccb6499ec01c33afe43512a439a2 upstream.

Need to unlock the crtc after updating the blanking state.

Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
drivers/gpu/drm/radeon/evergreen.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 9e726f2d2e75..20b00a0f42b4 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -2523,6 +2523,7 @@ void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *sav
WREG32(EVERGREEN_CRTC_UPDATE_LOCK + crtc_offsets[i], 1);
tmp |= EVERGREEN_CRTC_BLANK_DATA_EN;
WREG32(EVERGREEN_CRTC_BLANK_CONTROL + crtc_offsets[i], tmp);
+ WREG32(EVERGREEN_CRTC_UPDATE_LOCK + crtc_offsets[i], 0);
}
} else {
tmp = RREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[i]);
--
2.1.3

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