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-rw-r--r--drivers/gpu/drm/radeon/atombios_crtc.c14
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 f4d4505..961d366 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -1682,9 +1682,22 @@ 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:
@@ -1701,6 +1714,7 @@ static void atombios_crtc_disable(struct drm_crtc *crtc)
default:
break;
}
+done:
radeon_crtc->pll_id = -1;
}
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