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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/platform/x86/sony-laptop.c
parent57e148b6a975980944f4466ccb669b1d02dfc6a1 (diff)
downloadlinux-2.6.34-ux500-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/platform/x86/sony-laptop.c')
-rw-r--r--drivers/platform/x86/sony-laptop.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index 5a3d8514c66..6553b91caaa 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -1291,9 +1291,13 @@ static int sony_nc_add(struct acpi_device *device)
"controlled by ACPI video driver\n");
} else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
&handle))) {
+ struct backlight_properties props;
+ memset(&props, 0, sizeof(struct backlight_properties));
+ props.max_brightness = SONY_MAX_BRIGHTNESS - 1;
sony_backlight_device = backlight_device_register("sony", NULL,
NULL,
- &sony_backlight_ops);
+ &sony_backlight_ops,
+ &props);
if (IS_ERR(sony_backlight_device)) {
printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
@@ -1302,8 +1306,6 @@ static int sony_nc_add(struct acpi_device *device)
sony_backlight_device->props.brightness =
sony_backlight_get_brightness
(sony_backlight_device);
- sony_backlight_device->props.max_brightness =
- SONY_MAX_BRIGHTNESS - 1;
}
}