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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 <mjg@redhat.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
This commit is contained in:
Matthew Garrett
2010-02-17 16:39:44 -05:00
committed by Richard Purdie
parent 57e148b6a9
commit a19a6ee6ca
49 changed files with 271 additions and 151 deletions
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11
drivers/platform/x86/compal-laptop.c
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@@ -291,12 +291,15 @@ static int __init compal_init(void)
/* Register backlight stuff */
if (!acpi_video_backlight_support()) {
compalbl_device = backlight_device_register("compal-laptop", NULL, NULL,
&compalbl_ops);
struct backlight_properties props;
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = COMPAL_LCD_LEVEL_MAX - 1;
compalbl_device = backlight_device_register("compal-laptop",
NULL, NULL,
&compalbl_ops,
&props);
if (IS_ERR(compalbl_device))
return PTR_ERR(compalbl_device);
compalbl_device->props.max_brightness = COMPAL_LCD_LEVEL_MAX-1;
}
ret = platform_driver_register(&compal_driver);