Apple laptops with hybrid graphics have a device named gmux that is used for switching between GPUs and backlight control. On many models this is the only reliable method for controlling the backlight. This series adds initial support for the gmux device, along with anciallary support for disabling apple_bl when the gmux device is detected. Initially only backlight control is supported. Changes since v3: - Rename apple_bl_register_count to apple_bl_registered and make it static. - Add stubs for apple_bl register/unregister functions and drop APPLE_GMUX's dependency on BACKLIGHT_APPLE. Thanks, Seth Seth Forshee (2): apple_bl: Add register/unregister functions platform/x86: Add driver for Apple gmux device drivers/platform/x86/Kconfig | 10 ++ drivers/platform/x86/Makefile | 1 + drivers/platform/x86/apple-gmux.c | 242 ++++++++++++++++++++++++++++++++++++ drivers/video/backlight/apple_bl.c | 23 +++- include/linux/apple_bl.h | 26 ++++ 5 files changed, 300 insertions(+), 2 deletions(-) create mode 100644 drivers/platform/x86/apple-gmux.c create mode 100644 include/linux/apple_bl.h -- To unsubscribe from this list: send the line "unsubscribe platform-driver-x86" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
