[v2,1/6] auxdisplay: ht16k33: Replace use of fb_blank with backlight helper

Commit Message

Thomas Zimmermann March 19, 2024, 9:37 a.m. UTC

Replace the use of struct backlight_properties.fb_blank with a call
to backlight_get_brightness(). The helper implements similar logic
as the driver's function. It also accounts for BL_CORE_SUSPENDED for
drivers that set BL_CORE_SUSPENDRESUME. Ht16k33 doesn't use this, so
there's no change in behaviour here.

Signed-off-by: Thomas Zimmermann <[e-mail]>
Cc: Robin van der Gracht <[e-mail]>
Cc: Miguel Ojeda <[e-mail]>
Reviewed-by: Sam Ravnborg <[e-mail]>
Reviewed-by: Geert Uytterhoeven <[e-mail]>
Reviewed-by: Miguel Ojeda <[e-mail]>
Reviewed-by: Robin van der Gracht <[e-mail]>
Reviewed-by: Dan Carpenter <[e-mail]>

---

v2:
- update commit-message style according to subsystem (Lee)
- declare local var as const (Miguel)
- clarify BL_CORE_SUSPENDED (Miguel)
- fix grammar in commit message (Dan)
---
 drivers/auxdisplay/ht16k33.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

Patch

diff --git a/drivers/auxdisplay/ht16k33.c b/drivers/auxdisplay/ht16k33.c
index a90430b7d07ba..9081a5797c552 100644
--- a/drivers/auxdisplay/ht16k33.c
+++ b/drivers/auxdisplay/ht16k33.c
@@ -314,14 +314,9 @@  static int ht16k33_initialize(struct ht16k33_priv *priv)
 
 static int ht16k33_bl_update_status(struct backlight_device *bl)
 {
-	int brightness = bl->props.brightness;
+	const int brightness = backlight_get_brightness(bl);
 	struct ht16k33_priv *priv = bl_get_data(bl);
 
-	if (bl->props.power != FB_BLANK_UNBLANK ||
-	    bl->props.fb_blank != FB_BLANK_UNBLANK ||
-	    bl->props.state & BL_CORE_FBBLANK)
-		brightness = 0;
-
 	return ht16k33_brightness_set(priv, brightness);
 }