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drm/radeon/kms: fix legacy crtc2 dpms
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noticed by Matthijs Kooijman on fdo bug 22140

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Alex Deucher authored and Dave Airlie committed Dec 4, 2009
1 parent 500b758 commit 8de2152
Showing 1 changed file with 3 additions and 4 deletions.
7 changes: 3 additions & 4 deletions drivers/gpu/drm/radeon/radeon_legacy_crtc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -292,8 +292,7 @@ void radeon_crtc_dpms(struct drm_crtc *crtc, int mode)
uint32_t mask;

if (radeon_crtc->crtc_id)
mask = (RADEON_CRTC2_EN |
RADEON_CRTC2_DISP_DIS |
mask = (RADEON_CRTC2_DISP_DIS |
RADEON_CRTC2_VSYNC_DIS |
RADEON_CRTC2_HSYNC_DIS |
RADEON_CRTC2_DISP_REQ_EN_B);
Expand All @@ -305,7 +304,7 @@ void radeon_crtc_dpms(struct drm_crtc *crtc, int mode)
switch (mode) {
case DRM_MODE_DPMS_ON:
if (radeon_crtc->crtc_id)
WREG32_P(RADEON_CRTC2_GEN_CNTL, RADEON_CRTC2_EN, ~mask);
WREG32_P(RADEON_CRTC2_GEN_CNTL, RADEON_CRTC2_EN, ~(RADEON_CRTC2_EN | mask));
else {
WREG32_P(RADEON_CRTC_GEN_CNTL, RADEON_CRTC_EN, ~(RADEON_CRTC_EN |
RADEON_CRTC_DISP_REQ_EN_B));
Expand All @@ -319,7 +318,7 @@ void radeon_crtc_dpms(struct drm_crtc *crtc, int mode)
case DRM_MODE_DPMS_OFF:
drm_vblank_pre_modeset(dev, radeon_crtc->crtc_id);
if (radeon_crtc->crtc_id)
WREG32_P(RADEON_CRTC2_GEN_CNTL, mask, ~mask);
WREG32_P(RADEON_CRTC2_GEN_CNTL, mask, ~(RADEON_CRTC2_EN | mask));
else {
WREG32_P(RADEON_CRTC_GEN_CNTL, RADEON_CRTC_DISP_REQ_EN_B, ~(RADEON_CRTC_EN |
RADEON_CRTC_DISP_REQ_EN_B));
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