diff options
| author | Jian-Hong Pan <jian-hong@endlessm.com> | 2019-12-30 16:30:45 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-23 08:19:35 +0100 |
| commit | 5765dbab0411388b47c6e7ffb3dbe872eace8fe8 (patch) | |
| tree | 8a7ff6b0b16ce1ca34c6b3f53362fe109276e966 /drivers/platform/x86 | |
| parent | 78171dcb0efae1901f8d2abf10ee35bc014436b9 (diff) | |
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')
| -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 aede41a92cac..4ae758c3d8ba 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -461,13 +461,7 @@ 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); } |