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/omap1_bl.c b/drivers/video/backlight/omap1_bl.c
index a3a7f89..333d28e 100644
--- a/drivers/video/backlight/omap1_bl.c
+++ b/drivers/video/backlight/omap1_bl.c
@@ -132,6 +132,7 @@
static int omapbl_probe(struct platform_device *pdev)
{
+ struct backlight_properties props;
struct backlight_device *dev;
struct omap_backlight *bl;
struct omap_backlight_config *pdata = pdev->dev.platform_data;
@@ -143,7 +144,10 @@
if (unlikely(!bl))
return -ENOMEM;
- dev = backlight_device_register("omap-bl", &pdev->dev, bl, &omapbl_ops);
+ memset(&props, 0, sizeof(struct backlight_properties));
+ props.max_brightness = OMAPBL_MAX_INTENSITY;
+ dev = backlight_device_register("omap-bl", &pdev->dev, bl, &omapbl_ops,
+ &props);
if (IS_ERR(dev)) {
kfree(bl);
return PTR_ERR(dev);
@@ -160,7 +164,6 @@
omap_cfg_reg(PWL); /* Conflicts with UART3 */
dev->props.fb_blank = FB_BLANK_UNBLANK;
- dev->props.max_brightness = OMAPBL_MAX_INTENSITY;
dev->props.brightness = pdata->default_intensity;
omapbl_update_status(dev);