diff options
| 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/aty128fb.c | |
| parent | 238576e12fef1d52751c6e08db2d0bdb0e248caf (diff) | |
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/aty128fb.c')
| -rw-r--r-- | drivers/video/aty/aty128fb.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c index 8726c366971..e86d7e0c982 100644 --- a/drivers/video/aty/aty128fb.c +++ b/drivers/video/aty/aty128fb.c @@ -357,6 +357,12 @@ static int default_lcd_on __devinitdata = 1; static int mtrr = 1; #endif +#ifdef CONFIG_PMAC_BACKLIGHT +static int backlight __devinitdata = 1; +#else +static int backlight __devinitdata = 0; +#endif + /* PLL constants */ struct aty128_constants { u32 ref_clk; @@ -1652,6 +1658,9 @@ static int __devinit aty128fb_setup(char *options) } else if (!strncmp(this_opt, "crt:", 4)) { default_crt_on = simple_strtoul(this_opt+4, NULL, 0); continue; + } else if (!strncmp(this_opt, "backlight:", 10)) { + backlight = simple_strtoul(this_opt+10, NULL, 0); + continue; } #ifdef CONFIG_MTRR if(!strncmp(this_opt, "nomtrr", 6)) { @@ -1985,7 +1994,8 @@ static int __devinit aty128_init(struct pci_dev *pdev, const struct pci_device_i par->lock_blank = 0; #ifdef CONFIG_FB_ATY128_BACKLIGHT - aty128_bl_init(par); + if (backlight) + aty128_bl_init(par); #endif if (register_framebuffer(info) < 0) |