dell-wmi: Use acpi_video_handles_brightness_key_presses()

Use the new acpi_video_handles_brightness_key_presses function to check
if we should report brightness key-presses.

This makes the code both easier to read and makes it properly report
key-presses when acpi-video is not reporting them for reasons other
then the backlight type being vendor.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c
index f2d77fe..cb8a9c2 100644 (file)
--- a/drivers/platform/x86/dell-wmi.c
+++ b/drivers/platform/x86/dell-wmi.c
@@ -43,8 +43,6 @@ MODULE_LICENSE("GPL");
 
 #define DELL_EVENT_GUID "9DBB5994-A997-11DA-B012-B622A1EF5492"
 
-static int acpi_video;
-
 MODULE_ALIAS("wmi:"DELL_EVENT_GUID);
 
 /*
@@ -159,7 +157,8 @@ static void dell_wmi_process_key(int reported_key)
 
        /* Don't report brightness notifications that will also come via ACPI */
        if ((key->keycode == KEY_BRIGHTNESSUP ||
-            key->keycode == KEY_BRIGHTNESSDOWN) && acpi_video)
+            key->keycode == KEY_BRIGHTNESSDOWN) &&
+           acpi_video_handles_brightness_key_presses())
                return;
 
        sparse_keymap_report_entry(dell_wmi_input_dev, key, 1, true);
@@ -398,7 +397,6 @@ static int __init dell_wmi_init(void)
        }
 
        dmi_walk(find_hk_type, NULL);
-       acpi_video = acpi_video_get_backlight_type() != acpi_backlight_vendor;
 
        err = dell_wmi_input_setup();
        if (err)