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backlight: Allow properties to be passed at registration

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Values such as max_brightness should be set before backlights are
registered, but the current API doesn't allow that. Add a parameter to
backlight_device_register and update drivers to ensure that they
set this correctly.

Signed-off-by: Matthew Garrett <[email protected]>
Signed-off-by: Richard Purdie <[email protected]>
This commit is contained in:
Matthew Garrett 2010-02-17 16:39:44 -05:00 • committed by Richard Purdie
commit a19a6ee6ca
49 changed files with 271 additions and 151 deletions
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7
drivers/macintosh/via-pmu-backlight.c
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@ -144,6 +144,7 @@ void pmu_backlight_set_sleep(int sleep)
void __init pmu_backlight_init()
{
struct backlight_properties props;
struct backlight_device *bd;
char name[10];
int level, autosave;
@ -161,13 +162,15 @@ void __init pmu_backlight_init()
snprintf(name, sizeof(name), "pmubl");
bd = backlight_device_register(name, NULL, NULL, &pmu_backlight_data);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
bd = backlight_device_register(name, NULL, NULL, &pmu_backlight_data,
&props);
if (IS_ERR(bd)) {
printk(KERN_ERR "PMU Backlight registration failed\n");
return;
}
uses_pmu_bl = 1;
bd->props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
pmu_backlight_init_curve(0x7F, 0x46, 0x0E);
level = bd->props.max_brightness;