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authorMatthew Garrett <mjg@redhat.com>2010-02-17 22:39:44 +0100
committerRichard Purdie <rpurdie@linux.intel.com>2010-03-16 20:47:54 +0100
commita19a6ee6cad2b20292a774c2f56ba8039b0fac9c (patch)
tree631916ce6181336c5c28eb0cf5484c40c92986b6 /drivers/video/backlight/wm831x_bl.c
parentbacklight: Add backlight_device parameter to check_fb (diff)
downloadlinux-a19a6ee6cad2b20292a774c2f56ba8039b0fac9c.tar.xz
linux-a19a6ee6cad2b20292a774c2f56ba8039b0fac9c.zip
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/wm831x_bl.c')
-rw-r--r--drivers/video/backlight/wm831x_bl.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/video/backlight/wm831x_bl.c b/drivers/video/backlight/wm831x_bl.c
index e32add37a203..a4312709fb1b 100644
--- a/drivers/video/backlight/wm831x_bl.c
+++ b/drivers/video/backlight/wm831x_bl.c
@@ -125,6 +125,7 @@ static int wm831x_backlight_probe(struct platform_device *pdev)
struct wm831x_backlight_pdata *pdata;
struct wm831x_backlight_data *data;
struct backlight_device *bl;
+ struct backlight_properties props;
int ret, i, max_isel, isink_reg, dcdc_cfg;
/* We need platform data */
@@ -191,15 +192,15 @@ static int wm831x_backlight_probe(struct platform_device *pdev)
data->current_brightness = 0;
data->isink_reg = isink_reg;
- bl = backlight_device_register("wm831x", &pdev->dev,
- data, &wm831x_backlight_ops);
+ props.max_brightness = max_isel;
+ bl = backlight_device_register("wm831x", &pdev->dev, data,
+ &wm831x_backlight_ops, &props);
if (IS_ERR(bl)) {
dev_err(&pdev->dev, "failed to register backlight\n");
kfree(data);
return PTR_ERR(bl);
}
- bl->props.max_brightness = max_isel;
bl->props.brightness = max_isel;
platform_set_drvdata(pdev, bl);