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/jornada720_bl.c b/drivers/video/backlight/jornada720_bl.c
index db9071f..2f177b3 100644
--- a/drivers/video/backlight/jornada720_bl.c
+++ b/drivers/video/backlight/jornada720_bl.c
@@ -101,10 +101,14 @@
static int jornada_bl_probe(struct platform_device *pdev)
{
+ struct backlight_properties props;
int ret;
struct backlight_device *bd;
- bd = backlight_device_register(S1D_DEVICENAME, &pdev->dev, NULL, &jornada_bl_ops);
+ memset(&props, 0, sizeof(struct backlight_properties));
+ props.max_brightness = BL_MAX_BRIGHT;
+ bd = backlight_device_register(S1D_DEVICENAME, &pdev->dev, NULL,
+ &jornada_bl_ops, &props);
if (IS_ERR(bd)) {
ret = PTR_ERR(bd);
@@ -117,7 +121,6 @@
/* note. make sure max brightness is set otherwise
you will get seemingly non-related errors when
trying to change brightness */
- bd->props.max_brightness = BL_MAX_BRIGHT;
jornada_bl_update_status(bd);
platform_set_drvdata(pdev, bd);