diff options
| author | AceLan Kao <acelan.kao@canonical.com> | 2012-06-13 07:32:06 (GMT) |
|---|---|---|
| committer | Matthew Garrett <mjg@redhat.com> | 2012-07-28 04:11:49 (GMT) |
| commit | 272c77d55672ef92eda9d5e24a5a7ac62df9c431 (patch) | |
| tree | 8c960ccb629eb89e638810a96195573313d617d1 /drivers | |
| parent | e052067df00592b1b62d1d438191b931f2009cbb (diff) | |
| download | linux-272c77d55672ef92eda9d5e24a5a7ac62df9c431.tar.xz | |
asus-wmi: control backlight power through WMI, not ACPI
BugLink: https://bugs.launchpad.net/bugs/1000146
Some h/w that can adjust screen brightness through ACPI functions, but
can't turn on/off the backlight power correctly. So, we list those h/w in
quirks and try to turn on/off the backlight power through WMI.
Signed-off-by: AceLan Kao <acelan.kao@canonical.com>
Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/platform/x86/asus-wmi.c | 9 | ||||
| -rw-r--r-- | drivers/platform/x86/asus-wmi.h | 1 | ||||
| -rw-r--r-- | drivers/platform/x86/eeepc-wmi.c | 25 |
3 files changed, 34 insertions, 1 deletions
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 556cbb4..486f836 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -47,6 +47,9 @@ #include <linux/thermal.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> +#ifdef CONFIG_ACPI_VIDEO +#include <acpi/video.h> +#endif #include "asus-wmi.h" @@ -1676,7 +1679,13 @@ static int asus_wmi_add(struct platform_device *pdev) if (err) goto fail_rfkill; + if (asus->driver->quirks->wmi_backlight_power) + acpi_video_dmi_promote_vendor(); if (!acpi_video_backlight_support()) { +#ifdef CONFIG_ACPI_VIDEO + pr_info("Disabling ACPI video driver\n"); + acpi_video_unregister(); +#endif err = asus_wmi_backlight_init(asus); if (err && err != -ENODEV) goto fail_backlight; diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h index d43b667..9c1da8b 100644 --- a/drivers/platform/x86/asus-wmi.h +++ b/drivers/platform/x86/asus-wmi.h @@ -39,6 +39,7 @@ struct quirk_entry { bool hotplug_wireless; bool scalar_panel_brightness; bool store_backlight_power; + bool wmi_backlight_power; int wapf; }; diff --git a/drivers/platform/x86/eeepc-wmi.c b/drivers/platform/x86/eeepc-wmi.c index 6567613..5838332 100644 --- a/drivers/platform/x86/eeepc-wmi.c +++ b/drivers/platform/x86/eeepc-wmi.c @@ -79,7 +79,7 @@ static const struct key_entry eeepc_wmi_keymap[] = { { KE_KEY, 0xe1, { KEY_F14 } }, /* Change Resolution */ { KE_KEY, HOME_PRESS, { KEY_CONFIG } }, /* Home/Express gate key */ { KE_KEY, 0xe8, { KEY_SCREENLOCK } }, - { KE_KEY, 0xe9, { KEY_BRIGHTNESS_ZERO } }, + { KE_KEY, 0xe9, { KEY_DISPLAYTOGGLE } }, { KE_KEY, 0xeb, { KEY_CAMERA_ZOOMOUT } }, { KE_KEY, 0xec, { KEY_CAMERA_UP } }, { KE_KEY, 0xed, { KEY_CAMERA_DOWN } }, @@ -107,6 +107,11 @@ static struct quirk_entry quirk_asus_et2012_type3 = { .store_backlight_power = true, }; +static struct quirk_entry quirk_asus_x101ch = { + /* We need this when ACPI function doesn't do this well */ + .wmi_backlight_power = true, +}; + static struct quirk_entry *quirks; static void et2012_quirks(void) @@ -157,6 +162,24 @@ static struct dmi_system_id asus_quirks[] = { }, .driver_data = &quirk_asus_unknown, }, + { + .callback = dmi_matched, + .ident = "ASUSTeK Computer INC. X101CH", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "X101CH"), + }, + .driver_data = &quirk_asus_x101ch, + }, + { + .callback = dmi_matched, + .ident = "ASUSTeK Computer INC. 1015CX", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "1015CX"), + }, + .driver_data = &quirk_asus_x101ch, + }, {}, }; |