Here's the final version. I will request a pull from Len Brown to get it
into acpi-test, from where it will eventually reach mainline at Len's
discretion.
--
"One disk to rule them all, One disk to find them. One disk to bring
them all and in the darkness grind them. In the Land of Redmond
where the shadows lie." -- The Silicon Valley Tarot
Henrique Holschuh
From: Henrique de Moraes Holschuh <[email protected]>
ACPI: ibm-acpi: fix initial status of backlight device
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 <[email protected]>
Acked-by: Richard Purdie <[email protected]>
---
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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