diff options
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv04_dac.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/gpu/drm/nouveau/nv04_dac.c b/drivers/gpu/drm/nouveau/nv04_dac.c index 8066c56afa34..bcc8090adb23 100644 --- a/drivers/gpu/drm/nouveau/nv04_dac.c +++ b/drivers/gpu/drm/nouveau/nv04_dac.c @@ -261,12 +261,11 @@ uint32_t nv17_dac_sample_load(struct drm_encoder *encoder) saved_routput = NVReadRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + regoffset); head = (saved_routput & 0x100) >> 8; -#if 0 - /* if there's a spare crtc, using it will minimise flicker for the case - * where the in-use crtc is in use by an off-chip tmds encoder */ - if (xf86_config->crtc[head]->enabled && !xf86_config->crtc[head ^ 1]->enabled) + + /* if there's a spare crtc, using it will minimise flicker */ + if (!(NVReadVgaCrtc(dev, head, NV_CIO_CRE_RPC1_INDEX) & 0xC0)) head ^= 1; -#endif + /* nv driver and nv31 use 0xfffffeee, nv34 and 6600 use 0xfffffece */ routput = (saved_routput & 0xfffffece) | head << 8; |