diff options
| author | Alex Deucher <alexdeucher@gmail.com> | 2010-01-04 11:05:44 -0500 |
|---|---|---|
| committer | Alex Deucher <alexdeucher@gmail.com> | 2010-01-11 12:46:20 -0500 |
| commit | 6065ca92763fef1a08185854fc07fb60259ca99e (patch) | |
| tree | d4209ddc2687bf07b02ad6a0e823a95ef54fb2fa | |
| parent | e8b9de06482ff792b8d7fa40ce3bc024caca62f6 (diff) | |
radeon: fix LVDS power sequence on Mac cards
Noticed by John R. Dunning. Fix taken from radeonfb.
I'm not sure if this sequence would be useful on any PC
laptops or not so make it mac specific for now.
| -rw-r--r-- | src/legacy_output.c | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/src/legacy_output.c b/src/legacy_output.c index 7134ee15..9123d589 100644 --- a/src/legacy_output.c +++ b/src/legacy_output.c @@ -912,6 +912,11 @@ legacy_output_dpms(xf86OutputPtr output, int mode) ErrorF("enable LVDS\n"); tmp = INREG(RADEON_LVDS_GEN_CNTL); tmp |= (RADEON_LVDS_ON | RADEON_LVDS_BLON | RADEON_LVDS_EN); +#if defined(__powerpc__) + /* not sure if this is needed on non-Macs */ + if (info->MacModel) + tmp |= RADEON_LVDS_BL_MOD_EN; +#endif tmp &= ~(RADEON_LVDS_DISPLAY_DIS); usleep (lvds->PanelPwrDly * 1000); OUTREG(RADEON_LVDS_GEN_CNTL, tmp); @@ -1001,10 +1006,24 @@ legacy_output_dpms(xf86OutputPtr output, int mode) */ OUTPLLP(pScrn, RADEON_PIXCLKS_CNTL, 0, ~RADEON_PIXCLK_LVDS_ALWAYS_ONb); } - tmp = INREG(RADEON_LVDS_GEN_CNTL); - tmp |= RADEON_LVDS_DISPLAY_DIS; - tmp &= ~(RADEON_LVDS_ON | RADEON_LVDS_BLON | RADEON_LVDS_EN); - OUTREG(RADEON_LVDS_GEN_CNTL, tmp); +#if defined(__powerpc__) + /* not sure if this is needed on non-Macs */ + if (info->MacModel) { + tmp = INREG(RADEON_LVDS_GEN_CNTL); + tmp |= RADEON_LVDS_DISPLAY_DIS; + tmp &= ~RADEON_LVDS_BL_MOD_EN; + OUTREG(RADEON_LVDS_GEN_CNTL, tmp); + usleep(100); + tmp &= ~(RADEON_LVDS_ON | RADEON_LVDS_EN); + OUTREG(RADEON_LVDS_GEN_CNTL, tmp); + } else +#endif + { + tmp = INREG(RADEON_LVDS_GEN_CNTL); + tmp |= RADEON_LVDS_DISPLAY_DIS; + tmp &= ~(RADEON_LVDS_ON | RADEON_LVDS_BLON | RADEON_LVDS_EN); + OUTREG(RADEON_LVDS_GEN_CNTL, tmp); + } save->lvds_gen_cntl |= RADEON_LVDS_DISPLAY_DIS; save->lvds_gen_cntl &= ~(RADEON_LVDS_ON | RADEON_LVDS_BLON | RADEON_LVDS_EN); if (info->IsMobility || info->IsIGP) { |