diff options
| author | Jian-Hong Pan <jian-hong@endlessm.com> | 2019-12-30 11:30:45 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-17 21:47:03 +0300 |
| commit | d847154df490d018cb850dbc17b621260b10d1e3 (patch) | |
| tree | 13ef5ceb81959e4c431a9cbee6cca830a95b666f /drivers/platform/x86/asus-wmi.c | |
| parent | e61a25a897db10686e2e0fc34689b2c01365e352 (diff) | |
| download | linux-d847154df490d018cb850dbc17b621260b10d1e3.tar.xz | |
platform/x86: asus-wmi: Fix keyboard brightness cannot be set to 0
commit 176a7fca81c5090a7240664e3002c106d296bf31 upstream.
Some of ASUS laptops like UX431FL keyboard backlight cannot be set to
brightness 0. According to ASUS' information, the brightness should be
0x80 ~ 0x83. This patch fixes it by following the logic.
Fixes: e9809c0b9670 ("asus-wmi: add keyboard backlight support")
Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com>
Reviewed-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/platform/x86/asus-wmi.c')
| -rw-r--r-- | drivers/platform/x86/asus-wmi.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 22eac449d3a3..339b753ba447 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -463,13 +463,7 @@ static void kbd_led_update(struct work_struct *work) asus = container_of(work, struct asus_wmi, kbd_led_work); - /* - * bits 0-2: level - * bit 7: light on/off - */ - if (asus->kbd_led_wk > 0) - ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F); - + ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F); asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT, ctrl_param, NULL); led_classdev_notify_brightness_hw_changed(&asus->kbd_led, asus->kbd_led_wk); } |