diff options
Diffstat (limited to 'src/radeon_display.c')
| -rw-r--r-- | src/radeon_display.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/radeon_display.c b/src/radeon_display.c index de44b389..58282ef5 100644 --- a/src/radeon_display.c +++ b/src/radeon_display.c @@ -1434,6 +1434,59 @@ static void RADEONDacPowerSet(ScrnInfoPtr pScrn, Bool IsOn, Bool IsPrimaryDAC) } } +/* disable all ouputs before enabling the ones we want */ +void RADEONDisableDisplays(ScrnInfoPtr pScrn) { + RADEONInfoPtr info = RADEONPTR(pScrn); + unsigned char * RADEONMMIO = info->MMIO; + unsigned long tmp, tmpPixclksCntl; + + + /* primary DAC */ + tmp = INREG(RADEON_CRTC_EXT_CNTL); + tmp &= ~RADEON_CRTC_CRT_ON; + OUTREG(RADEON_CRTC_EXT_CNTL, tmp); + RADEONDacPowerSet(pScrn, FALSE, TRUE); + + /* Secondary DAC */ + if (info->ChipFamily == CHIP_FAMILY_R200) { + tmp = INREG(RADEON_FP2_GEN_CNTL); + tmp &= ~(RADEON_FP2_ON | RADEON_FP2_DVO_EN); + OUTREG(RADEON_FP2_GEN_CNTL, tmp); + } else { + tmp = INREG(RADEON_CRTC2_GEN_CNTL); + tmp &= ~RADEON_CRTC2_CRT2_ON; + OUTREG(RADEON_CRTC2_GEN_CNTL, tmp); + } + RADEONDacPowerSet(pScrn, FALSE, FALSE); + + /* FP 1 */ + tmp = INREG(RADEON_FP_GEN_CNTL); + tmp &= ~(RADEON_FP_FPON | RADEON_FP_TMDS_EN); + OUTREG(RADEON_FP_GEN_CNTL, tmp); + + /* FP 2 */ + tmp = INREG(RADEON_FP2_GEN_CNTL); + tmp &= ~(RADEON_FP2_ON | RADEON_FP2_DVO_EN); + OUTREG(RADEON_FP2_GEN_CNTL, tmp); + + /* LVDS */ + tmpPixclksCntl = INPLL(pScrn, RADEON_PIXCLKS_CNTL); + if (info->IsMobility || info->IsIGP) { + /* Asic bug, when turning off LVDS_ON, we have to make sure + RADEON_PIXCLK_LVDS_ALWAYS_ON bit is off + */ + OUTPLLP(pScrn, RADEON_PIXCLKS_CNTL, 0, ~RADEON_PIXCLK_LVDS_ALWAYS_ONb); + } + tmp = INREG(RADEON_LVDS_GEN_CNTL); + tmp |= (RADEON_LVDS_ON | RADEON_LVDS_DISPLAY_DIS); + tmp &= ~(RADEON_LVDS_BLON); + OUTREG(RADEON_LVDS_GEN_CNTL, tmp); + if (info->IsMobility || info->IsIGP) { + OUTPLL(pScrn, RADEON_PIXCLKS_CNTL, tmpPixclksCntl); + } + +} + /* This is to be used enable/disable displays dynamically */ void RADEONEnableDisplay(ScrnInfoPtr pScrn, RADEONController* pCRTC, BOOL bEnable) { |