The brightness class core does not update the initial status of the
device's brightness at register time. Do it by ourselves.
Signed-off-by: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Acked-by: Richard Purdie <rpurdie@xxxxxxxxx>
---
drivers/acpi/ibm_acpi.c | 10 +++++++++-
1 files changed, 9 insertions(+), 1 deletions(-)
diff --git a/drivers/acpi/ibm_acpi.c b/drivers/acpi/ibm_acpi.c
index 4cc534e..7c1b418 100644
--- a/drivers/acpi/ibm_acpi.c
+++ b/drivers/acpi/ibm_acpi.c
@@ -1711,6 +1711,12 @@ static struct backlight_ops ibm_backlight_data = {
static int brightness_init(void)
{
+ int b;
+
+ b = brightness_get(NULL);
+ if (b < 0)
+ return b;
+
ibm_backlight_device = backlight_device_register("ibm", NULL, NULL,
&ibm_backlight_data);
if (IS_ERR(ibm_backlight_device)) {
@@ -1718,7 +1724,9 @@ static int brightness_init(void)
return PTR_ERR(ibm_backlight_device);
}
- ibm_backlight_device->props.max_brightness = 7;
+ ibm_backlight_device->props.max_brightness = 7;
+ ibm_backlight_device->props.brightness = b;
+ backlight_update_status(ibm_backlight_device);
return 0;
}
--
1.4.4.4
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