diff options
| author | Daniel Drake <drake@endlessm.com> | 2019-07-29 16:27:38 +0800 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-07-30 14:14:38 +0300 |
| commit | f1fc032192d2872caef69fb899e939bf7cc24fc7 (patch) | |
| tree | f0dd12efdac62823ad66572cca0d5728d1f2a581 /drivers/platform | |
| parent | 2889ffcfc2522d6d25e5bda704275064062bbb21 (diff) | |
| download | linux-f1fc032192d2872caef69fb899e939bf7cc24fc7.tar.gz linux-f1fc032192d2872caef69fb899e939bf7cc24fc7.tar.bz2 linux-f1fc032192d2872caef69fb899e939bf7cc24fc7.zip | |
platform/x86: asus-wmi: add a helper for device presence
Factor out the WLAN LED and lightbar LED presence checks into a
helper function, which will also be used by the upcoming CPU fan device
support.
Signed-off-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/asus-wmi.c | 31 |
1 files changed, 11 insertions, 20 deletions
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index fc2939ac1cfe..25f1e256c442 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -358,6 +358,14 @@ static int asus_wmi_get_devstate_simple(struct asus_wmi *asus, u32 dev_id) ASUS_WMI_DSTS_STATUS_BIT); } +static bool asus_wmi_dev_is_present(struct asus_wmi *asus, u32 dev_id) +{ + u32 retval; + int status = asus_wmi_get_devstate(asus, dev_id, &retval); + + return status == 0 && (retval & ASUS_WMI_DSTS_PRESENCE_BIT); +} + /* LEDs ***********************************************************************/ /* @@ -503,15 +511,6 @@ static int wlan_led_unknown_state(struct asus_wmi *asus) return result & ASUS_WMI_DSTS_UNKNOWN_BIT; } -static int wlan_led_presence(struct asus_wmi *asus) -{ - u32 result; - - asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result); - - return result & ASUS_WMI_DSTS_PRESENCE_BIT; -} - static void wlan_led_update(struct work_struct *work) { int ctrl_param; @@ -578,15 +577,6 @@ static enum led_brightness lightbar_led_get(struct led_classdev *led_cdev) return result & ASUS_WMI_DSTS_LIGHTBAR_MASK; } -static int lightbar_led_presence(struct asus_wmi *asus) -{ - u32 result; - - asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_LIGHTBAR, &result); - - return result & ASUS_WMI_DSTS_PRESENCE_BIT; -} - static void asus_wmi_led_exit(struct asus_wmi *asus) { if (!IS_ERR_OR_NULL(asus->kbd_led.dev)) @@ -637,7 +627,8 @@ static int asus_wmi_led_init(struct asus_wmi *asus) goto error; } - if (wlan_led_presence(asus) && (asus->driver->quirks->wapf > 0)) { + if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_WIRELESS_LED) + && (asus->driver->quirks->wapf > 0)) { INIT_WORK(&asus->wlan_led_work, wlan_led_update); asus->wlan_led.name = "asus::wlan"; @@ -654,7 +645,7 @@ static int asus_wmi_led_init(struct asus_wmi *asus) goto error; } - if (lightbar_led_presence(asus)) { + if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_LIGHTBAR)) { INIT_WORK(&asus->lightbar_led_work, lightbar_led_update); asus->lightbar_led.name = "asus::lightbar"; |