1 From: Thomas Renninger <trenn@suse.de>
2 Subject: [PATCH] msi-laptop: fingers off backlight if video.ko is serving this functionality
3 Patch-Mainline: queued for .28 in Len's/ak's ACPI tree
5 commit a8c338259a436627d2427d70dc31fac67b86b9e6
7 Signed-off-by: Thomas Renninger <trenn@suse.de>
8 Signed-off-by: Andi Kleen <ak@linux.intel.com>
10 drivers/misc/msi-laptop.c | 16 ++++++++++------
11 1 files changed, 10 insertions(+), 6 deletions(-)
13 diff --git a/drivers/misc/msi-laptop.c b/drivers/misc/msi-laptop.c
14 index de898c6..759763d 100644
15 --- a/drivers/misc/msi-laptop.c
16 +++ b/drivers/misc/msi-laptop.c
17 @@ -347,12 +347,16 @@ static int __init msi_init(void)
19 /* Register backlight stuff */
21 - msibl_device = backlight_device_register("msi-laptop-bl", NULL, NULL,
23 - if (IS_ERR(msibl_device))
24 - return PTR_ERR(msibl_device);
26 - msibl_device->props.max_brightness = MSI_LCD_LEVEL_MAX-1;
27 + if (acpi_video_backlight_support()) {
28 + printk(KERN_INFO "MSI: Brightness ignored, must be controlled "
29 + "by ACPI video driver\n");
31 + msibl_device = backlight_device_register("msi-laptop-bl", NULL,
33 + if (IS_ERR(msibl_device))
34 + return PTR_ERR(msibl_device);
35 + msibl_device->props.max_brightness = MSI_LCD_LEVEL_MAX-1;
38 ret = platform_driver_register(&msipf_driver);