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| author | Richard Purdie <rpurdie@rpsys.net> | 2007-03-03 17:43:52 +0000 |
|---|---|---|
| committer | Richard Purdie <rpurdie@rpsys.net> | 2007-03-05 08:49:38 +0000 |
| commit | 202d4e602555e68c2bc71775228876b0356785c8 (patch) | |
| tree | e47c4013016e21a231b9d2873a2d75aa2750c5fe /drivers/video/aty/atyfb_base.c | |
| parent | 238576e12fef1d52751c6e08db2d0bdb0e248caf (diff) | |
| download | blackbird-op-linux-202d4e602555e68c2bc71775228876b0356785c8.tar.gz blackbird-op-linux-202d4e602555e68c2bc71775228876b0356785c8.zip | |
backlight: Allow enable/disable of fb backlights, fixing regressions
Enabling the backlight by default appears to cause problems for many
users. This patch disables backlight controls unless explicitly
enabled by users via a module parameter. Since PMAC users are known
to work, default to enabled in that case.
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Diffstat (limited to 'drivers/video/aty/atyfb_base.c')
| -rw-r--r-- | drivers/video/aty/atyfb_base.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c index a7e0062233f2..00a51835fd82 100644 --- a/drivers/video/aty/atyfb_base.c +++ b/drivers/video/aty/atyfb_base.c @@ -308,6 +308,12 @@ static int xclk; static int comp_sync __devinitdata = -1; static char *mode; +#ifdef CONFIG_PMAC_BACKLIGHT +static int backlight __devinitdata = 1; +#else +static int backlight __devinitdata = 0; +#endif + #ifdef CONFIG_PPC static int default_vmode __devinitdata = VMODE_CHOOSE; static int default_cmode __devinitdata = CMODE_CHOOSE; @@ -2575,7 +2581,7 @@ static int __devinit aty_init(struct fb_info *info) | (USE_F32KHZ | TRISTATE_MEM_EN), par); } else #endif - if (M64_HAS(MOBIL_BUS)) { + if (M64_HAS(MOBIL_BUS) && backlight) { #ifdef CONFIG_FB_ATY_BACKLIGHT aty_bl_init (par); #endif @@ -3757,6 +3763,8 @@ static int __init atyfb_setup(char *options) xclk = simple_strtoul(this_opt+5, NULL, 0); else if (!strncmp(this_opt, "comp_sync:", 10)) comp_sync = simple_strtoul(this_opt+10, NULL, 0); + else if (!strncmp(this_opt, "backlight:", 10)) + backlight = simple_strtoul(this_opt+10, NULL, 0); #ifdef CONFIG_PPC else if (!strncmp(this_opt, "vmode:", 6)) { unsigned int vmode = |
