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Revert "ACPI / video: Always call acpi_video_init_brightness() on init" 

Revert commit c04c697 (ACPI / video: Always call acpi_video_init_brightness()
on init), because it breaks eDP backlight at 1920x1080 on Acer Aspire S3
for Trevor Bortins.

References: https://bugs.freedesktop.org/show_bug.cgi?id=68355
Reported-and-bisected-by: Trevor Bortins <enabfluw@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Rafael J. Wysocki 2013-08-22 23:31:38 +02:00
parent b36f4be3de
commit 168cf0eca4
1 changed files with 3 additions and 8 deletions
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11
drivers/acpi/video.c
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@ -908,9 +908,6 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
device->cap._DDC = 1;
}
if (acpi_video_init_brightness(device))
return;
if (acpi_video_backlight_support()) {
struct backlight_properties props;
struct pci_dev *pdev;
@ -920,6 +917,9 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
static int count = 0;
char *name;
result = acpi_video_init_brightness(device);
if (result)
return;
name = kasprintf(GFP_KERNEL, "acpi_video%d", count);
if (!name)
return;
@ -979,11 +979,6 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
if (result)
printk(KERN_ERR PREFIX "Create sysfs link\n");
} else {
/* Remove the brightness object. */
kfree(device->brightness->levels);
kfree(device->brightness);
device->brightness = NULL;
}
}