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 21:45:47 +0300 |
| commit | c2d4a986f979d4004be7f5a3460bc0f0b8f41c02 (patch) | |
| tree | 8b839d560e46ca3457c5542a1f6eea3de1df4481 /drivers/platform/x86/asus-wmi.c | |
| parent | c301a4e96501e6f8333145efbda2aeb1ec0ba4fe (diff) | |
| download | linux-c2d4a986f979d4004be7f5a3460bc0f0b8f41c02.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 1c1999600717..af26ca49996d 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -457,13 +457,7 @@ 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); } |