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authorMatthew Garrett <mjg@redhat.com>2010-02-17 16:39:44 -0500
committerRichard Purdie <rpurdie@linux.intel.com>2010-03-16 19:47:54 +0000
commita19a6ee6cad2b20292a774c2f56ba8039b0fac9c (patch)
tree631916ce6181336c5c28eb0cf5484c40c92986b6 /drivers/video/backlight/pwm_bl.c
parent57e148b6a975980944f4466ccb669b1d02dfc6a1 (diff)
downloadlinux-stericsson-a19a6ee6cad2b20292a774c2f56ba8039b0fac9c.tar.gz
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>
Diffstat (limited to 'drivers/video/backlight/pwm_bl.c')
-rw-r--r--drivers/video/backlight/pwm_bl.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index 9d2ec2a1cce8..b89eebc3f77d 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -65,6 +65,7 @@ static const struct backlight_ops pwm_backlight_ops = {
static int pwm_backlight_probe(struct platform_device *pdev)
{
+ struct backlight_properties props;
struct platform_pwm_backlight_data *data = pdev->dev.platform_data;
struct backlight_device *bl;
struct pwm_bl_data *pb;
@@ -100,15 +101,16 @@ static int pwm_backlight_probe(struct platform_device *pdev)
} else
dev_dbg(&pdev->dev, "got pwm for backlight\n");
- bl = backlight_device_register(dev_name(&pdev->dev), &pdev->dev,
- pb, &pwm_backlight_ops);
+ memset(&props, 0, sizeof(struct backlight_properties));
+ props.max_brightness = data->max_brightness;
+ bl = backlight_device_register(dev_name(&pdev->dev), &pdev->dev, pb,
+ &pwm_backlight_ops, &props);
if (IS_ERR(bl)) {
dev_err(&pdev->dev, "failed to register backlight\n");
ret = PTR_ERR(bl);
goto err_bl;
}
- bl->props.max_brightness = data->max_brightness;
bl->props.brightness = data->dft_brightness;
backlight_update_status(bl);