[PATCH 2/4] platform/x86: apple-gmux: Use backlight helper

[Stephen Kitt <steve@sk2.org>]

Instead of retrieving the backlight brightness in struct
backlight_properties manually, and then checking whether the backlight
should be on at all, use backlight_get_brightness() which does all
this and insulates this from future changes.

Signed-off-by: Stephen Kitt <steve@sk2.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Mark Gross <markgross@kernel.org>
Cc: platform-driver-x86@vger.kernel.org
---
 drivers/platform/x86/apple-gmux.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c
index 57553f9b4d1d..ffe98a18440b 100644
--- a/drivers/platform/x86/apple-gmux.c
+++ b/drivers/platform/x86/apple-gmux.c
@@ -291,10 +291,7 @@ static int gmux_get_brightness(struct backlight_device *bd)
 static int gmux_update_status(struct backlight_device *bd)
 {
 	struct apple_gmux_data *gmux_data = bl_get_data(bd);
-	u32 brightness = bd->props.brightness;
-
-	if (bd->props.state & BL_CORE_SUSPENDED)
-		return 0;
+	u32 brightness = backlight_get_brightness(bd);
 
 	gmux_write32(gmux_data, GMUX_PORT_BRIGHTNESS, brightness);
 
-- 
2.30.2