diff options
Diffstat (limited to 'acpi-video-Allow-forcing-native-backlight-on-non-win.patch')
| -rw-r--r-- | acpi-video-Allow-forcing-native-backlight-on-non-win.patch | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/acpi-video-Allow-forcing-native-backlight-on-non-win.patch b/acpi-video-Allow-forcing-native-backlight-on-non-win.patch deleted file mode 100644 index e28a8826d..000000000 --- a/acpi-video-Allow-forcing-native-backlight-on-non-win.patch +++ /dev/null @@ -1,76 +0,0 @@ -From: Aaron Lu <aaron.lu@intel.com> -Date: Wed, 11 Mar 2015 14:14:56 +0800 -Subject: [PATCH] acpi: video: Allow forcing native backlight on non win8 - machines - -The native backlight behavior (so not registering both the acpi-video -and the vendor backlight driver) can be useful on some non win8 machines -too, so change the behavior of the video.use_native_backlight=1 or 0 -kernel cmdline option to be: if user has set video.use_native_backlight=1 -or 0, use that no matter if it is a win8 system or not. Also, we will -put some known systems into the DMI table to make them either use native -backlight interface or not, and the use_native_backlight_dmi is used to -reflect that. - -Original-by: Hans de Goede <hdegoede@redhat.com> -Signed-off-by: Aaron Lu <aaron.lu@intel.com> -Acked-by: Hans de Goede <hdegoede@redhat.com> -Signed-off-by: Hans de Goede <hdegoede@redhat.com> ---- - drivers/acpi/video.c | 19 +++++++++++++------ - 1 file changed, 13 insertions(+), 6 deletions(-) - -diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c -index db70d550f526..70ea37bea84f 100644 ---- a/drivers/acpi/video.c -+++ b/drivers/acpi/video.c -@@ -82,9 +82,15 @@ module_param(allow_duplicates, bool, 0644); - * For Windows 8 systems: used to decide if video module - * should skip registering backlight interface of its own. - */ --static int use_native_backlight_param = -1; -+enum { -+ NATIVE_BACKLIGHT_NOT_SET = -1, -+ NATIVE_BACKLIGHT_OFF, -+ NATIVE_BACKLIGHT_ON, -+}; -+ -+static int use_native_backlight_param = NATIVE_BACKLIGHT_NOT_SET; - module_param_named(use_native_backlight, use_native_backlight_param, int, 0444); --static bool use_native_backlight_dmi = true; -+static int use_native_backlight_dmi = NATIVE_BACKLIGHT_NOT_SET; - - static int register_count; - static struct mutex video_list_lock; -@@ -237,15 +243,16 @@ static void acpi_video_switch_brightness(struct work_struct *work); - - static bool acpi_video_use_native_backlight(void) - { -- if (use_native_backlight_param != -1) -+ if (use_native_backlight_param != NATIVE_BACKLIGHT_NOT_SET) - return use_native_backlight_param; -- else -+ else if (use_native_backlight_dmi != NATIVE_BACKLIGHT_NOT_SET) - return use_native_backlight_dmi; -+ return acpi_osi_is_win8(); - } - - bool acpi_video_verify_backlight_support(void) - { -- if (acpi_osi_is_win8() && acpi_video_use_native_backlight() && -+ if (acpi_video_use_native_backlight() && - backlight_device_registered(BACKLIGHT_RAW)) - return false; - return acpi_video_backlight_support(); -@@ -414,7 +421,7 @@ static int __init video_set_bqc_offset(const struct dmi_system_id *d) - - static int __init video_disable_native_backlight(const struct dmi_system_id *d) - { -- use_native_backlight_dmi = false; -+ use_native_backlight_dmi = NATIVE_BACKLIGHT_OFF; - return 0; - } - --- -2.1.0 - |