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/hp680_bl.c b/drivers/video/backlight/hp680_bl.c
index f7cc528..267d23f 100644
--- a/drivers/video/backlight/hp680_bl.c
+++ b/drivers/video/backlight/hp680_bl.c
@@ -105,16 +105,18 @@
static int __devinit hp680bl_probe(struct platform_device *pdev)
{
+ struct backlight_properties props;
struct backlight_device *bd;
- bd = backlight_device_register ("hp680-bl", &pdev->dev, NULL,
- &hp680bl_ops);
+ memset(&props, 0, sizeof(struct backlight_properties));
+ props.max_brightness = HP680_MAX_INTENSITY;
+ bd = backlight_device_register("hp680-bl", &pdev->dev, NULL,
+ &hp680bl_ops, &props);
if (IS_ERR(bd))
return PTR_ERR(bd);
platform_set_drvdata(pdev, bd);
- bd->props.max_brightness = HP680_MAX_INTENSITY;
bd->props.brightness = HP680_DEFAULT_INTENSITY;
hp680bl_send_intensity(bd);