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drm/nv17-nv40: Avoid using active CRTCs for load detection.

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Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Francisco Jerez 2010-07-03 12:47:14 +02:00 committed by Ben Skeggs
parent 044129212e
commit be8860ac0c
1 changed files with 4 additions and 5 deletions
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9
drivers/gpu/drm/nouveau/nv04_dac.c
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@ -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;