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| 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 08:18:37 +0100 |
| commit | 0ea98e08aef3b500a8bbbb40cca226d3ba13098f (patch) | |
| tree | 8d61a46244de680f095b60cabdb28b632c6657f0 | |
| parent | 4b8b57d7e7031cb5a59f6fc08955dca2d095466c (diff) | |
| download | linux-stable-0ea98e08aef3b500a8bbbb40cca226d3ba13098f.tar.gz linux-stable-0ea98e08aef3b500a8bbbb40cca226d3ba13098f.tar.bz2 linux-stable-0ea98e08aef3b500a8bbbb40cca226d3ba13098f.zip | |
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>
| -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 63b5b6838e8b..ca1d507aa532 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -452,13 +452,7 @@ 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); } |