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authorBen Skeggs <bskeggs@redhat.com>2010-01-22 03:57:01 +0300
committerBen Skeggs <bskeggs@redhat.com>2010-01-25 03:35:33 +0300
commit162265367a96d381f07066581d65e52627b08618 (patch)
treed39acdcba8c392355f95a9a9e39a0ba84ae1f3a8 /drivers
parent0107bae01add219e1a146f2b412d64a7f1946028 (diff)
downloadlinux-162265367a96d381f07066581d65e52627b08618.tar.xz
drm/nv50: prevent switching off SOR when in use for DVI-over-DP
Another hack because of us exposing each encoder block's function as an encoder rather than exposing a single encoder that deals with them all. A proper fix will come, it's just rather invasive so this hack will do until then. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/nouveau/nv50_sor.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_sor.c b/drivers/gpu/drm/nouveau/nv50_sor.c
index e395c16d30f5..ecf1936b8224 100644
--- a/drivers/gpu/drm/nouveau/nv50_sor.c
+++ b/drivers/gpu/drm/nouveau/nv50_sor.c
@@ -90,11 +90,24 @@ nv50_sor_dpms(struct drm_encoder *encoder, int mode)
{
struct drm_device *dev = encoder->dev;
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
+ struct drm_encoder *enc;
uint32_t val;
int or = nv_encoder->or;
NV_DEBUG_KMS(dev, "or %d mode %d\n", or, mode);
+ nv_encoder->last_dpms = mode;
+ list_for_each_entry(enc, &dev->mode_config.encoder_list, head) {
+ struct nouveau_encoder *nvenc = nouveau_encoder(enc);
+
+ if (nvenc == nv_encoder ||
+ nvenc->dcb->or != nv_encoder->dcb->or)
+ continue;
+
+ if (nvenc->last_dpms == DRM_MODE_DPMS_ON)
+ return;
+ }
+
/* wait for it to be done */
if (!nv_wait(NV50_PDISPLAY_SOR_DPMS_CTRL(or),
NV50_PDISPLAY_SOR_DPMS_CTRL_PENDING, 0)) {