diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 97527614141bf4a406528503d404ad8efd64695f..f9f205cb1f115a92617fca64002f028d1856faab 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -614,6 +614,7 @@ config ACPI_TOSHIBA depends on INPUT depends on RFKILL || RFKILL = n depends on SERIO_I8042 || SERIO_I8042 = n + depends on ACPI_VIDEO || ACPI_VIDEO = n select INPUT_POLLDEV select INPUT_SPARSEKMAP ---help--- diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index f624dd56051f303965d5677dabcc848347f75514..9956b9902bb40aaeb59e724b60579e56a495795e 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -49,7 +49,9 @@ #include #include #include +#include #include +#include MODULE_AUTHOR("John Belmonte"); MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver"); @@ -263,6 +265,14 @@ static const struct key_entry toshiba_acpi_alt_keymap[] = { { KE_END, 0 }, }; +/* + * List of models which have a broken acpi-video backlight interface and thus + * need to use the toshiba (vendor) interface instead. + */ +static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = { + {} +}; + /* * Utility */ @@ -2624,6 +2634,20 @@ static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev) ret = get_tr_backlight_status(dev, &enabled); dev->tr_backlight_supported = !ret; + /* + * Tell acpi-video-detect code to prefer vendor backlight on all + * systems with transflective backlight and on dmi matched systems. + */ + if (dev->tr_backlight_supported || + dmi_check_system(toshiba_vendor_backlight_dmi)) + acpi_video_dmi_promote_vendor(); + + if (acpi_video_backlight_support()) + return 0; + + /* acpi-video may have loaded before we called dmi_promote_vendor() */ + acpi_video_unregister_backlight(); + memset(&props, 0, sizeof(props)); props.type = BACKLIGHT_PLATFORM; props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;