backlight: Allow properties to be passed at registration
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>
diff --git a/drivers/video/backlight/adx_bl.c b/drivers/video/backlight/adx_bl.c
index a683dd1..b0624b9 100644
--- a/drivers/video/backlight/adx_bl.c
+++ b/drivers/video/backlight/adx_bl.c
@@ -70,6 +70,7 @@
static int __devinit adx_backlight_probe(struct platform_device *pdev)
{
+ struct backlight_properties props;
struct backlight_device *bldev;
struct resource *res;
struct adxbl *bl;
@@ -101,14 +102,15 @@
goto out;
}
- bldev = backlight_device_register(dev_name(&pdev->dev), &pdev->dev, bl,
- &adx_backlight_ops);
+ memset(&props, 0, sizeof(struct backlight_properties));
+ props.max_brightness = 0xff;
+ bldev = backlight_device_register(dev_name(&pdev->dev), &pdev->dev,
+ bl, &adx_backlight_ops, &props);
if (!bldev) {
ret = -ENOMEM;
goto out;
}
- bldev->props.max_brightness = 0xff;
bldev->props.brightness = 0xff;
bldev->props.power = FB_BLANK_UNBLANK;