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Clear the backlight level when it's turned off. Also, reduce the delay times to

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less conservative values, also found in the radeonkms driver.

MFC after:	2 weeks
X-MFC-with:	r264205
This commit is contained in:
Justin Hibbits 2014-04-06 23:57:19 +00:00
parent 1c6ca154ca
commit be9b614d12
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=264207
1 changed files with 4 additions and 4 deletions
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8
sys/powerpc/powermac/atibl.c
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@ -235,21 +235,21 @@ atibl_setlevel(struct atibl_softc *sc, int newlevel)
lvds_gen_cntl |= (newlevel << RADEON_LVDS_BL_MOD_LEVEL_SHIFT) &
RADEON_LVDS_BL_MOD_LEVEL_MASK;
lvds_gen_cntl |= RADEON_LVDS_BL_MOD_EN;
DELAY(2000000);
DELAY(200000);
bus_write_4(sc->sc_memr, RADEON_LVDS_GEN_CNTL, lvds_gen_cntl);
} else {
pixclks_cntl = atibl_pll_rreg(sc, RADEON_PIXCLKS_CNTL);
atibl_pll_wreg(sc, RADEON_PIXCLKS_CNTL,
pixclks_cntl & ~RADEON_PIXCLK_LVDS_ALWAYS_ONb);
lvds_gen_cntl |= RADEON_LVDS_DISPLAY_DIS;
lvds_gen_cntl &= ~RADEON_LVDS_BL_MOD_EN;
lvds_gen_cntl &= ~(RADEON_LVDS_BL_MOD_EN | RADEON_LVDS_BL_MOD_LEVEL_MASK);
bus_write_4(sc->sc_memr, RADEON_LVDS_GEN_CNTL, lvds_gen_cntl);
lvds_gen_cntl &= ~(RADEON_LVDS_ON | RADEON_LVDS_EN);
DELAY(2000000);
DELAY(200000);
bus_write_4(sc->sc_memr, RADEON_LVDS_GEN_CNTL, lvds_gen_cntl);
atibl_pll_wreg(sc, RADEON_PIXCLKS_CNTL, pixclks_cntl);
DELAY(2000000);
DELAY(200000);
}
return (0);