diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2012-08-21 19:06:21 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-02 10:30:24 -0700 |
| commit | 5f566f0b27ebddb41b5bd42484047ae96d645704 (patch) | |
| tree | 8b76382b7304371282b10db9a44ee20fe8e49b98 /drivers | |
| parent | ea708eb2c1843004a41d0beeac724451202513ff (diff) | |
drm/radeon: don't disable plls that are in use by other crtcs
commit 4e58591c8961b3e31709313f75819f2eec06e322 upstream.
Some plls are shared for DP.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios_crtc.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index 71bd61c33b7..19f4082c618 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -1663,9 +1663,22 @@ static void atombios_crtc_disable(struct drm_crtc *crtc) struct drm_device *dev = crtc->dev; struct radeon_device *rdev = dev->dev_private; struct radeon_atom_ss ss; + int i; atombios_crtc_dpms(crtc, DRM_MODE_DPMS_OFF); + for (i = 0; i < rdev->num_crtc; i++) { + if (rdev->mode_info.crtcs[i] && + rdev->mode_info.crtcs[i]->enabled && + i != radeon_crtc->crtc_id && + radeon_crtc->pll_id == rdev->mode_info.crtcs[i]->pll_id) { + /* one other crtc is using this pll don't turn + * off the pll + */ + goto done; + } + } + switch (radeon_crtc->pll_id) { case ATOM_PPLL1: case ATOM_PPLL2: @@ -1682,6 +1695,7 @@ static void atombios_crtc_disable(struct drm_crtc *crtc) default: break; } +done: radeon_crtc->pll_id = -1; } |