[PATCH 06/10] backlight/pwm-backlight: Remove struct backlight_ops.check_fb

Thomas Zimmermann
2024-02-12T16:26:52Z

The internal check_fb callback from struct pwm_bl_data is never
implemented. thus the driver's implementation of check_fb always
returns true, which is the backlight core's default if no
implementation has been set. So remove the code from the driver.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
---
drivers/video/backlight/pwm_bl.c | 12 ------------
include/linux/pwm_backlight.h | 1 -
2 files changed, 13 deletions(-)

diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index ffcebf6aa76a9..61d30bc98eea5 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -11,7 +11,6 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
-#include <linux/fb.h>
#include <linux/backlight.h>
#include <linux/err.h>
#include <linux/pwm.h>
@@ -34,7 +33,6 @@ struct pwm_bl_data {
int brightness);
void (*notify_after)(struct device *,
int brightness);
- int (*check_fb)(struct device *, struct fb_info *);
void (*exit)(struct device *);
};

@@ -129,17 +127,8 @@ static int pwm_backlight_update_status(struct backlight_device *bl)
return 0;
}

-static int pwm_backlight_check_fb(struct backlight_device *bl,
- struct fb_info *info)
-{
- struct pwm_bl_data *pb = bl_get_data(bl);
-
- return !pb->check_fb || pb->check_fb(pb->dev, info);
-}
-
static const struct backlight_ops pwm_backlight_ops = {
.update_status = pwm_backlight_update_status,
- .check_fb = pwm_backlight_check_fb,
};

#ifdef CONFIG_OF
@@ -482,7 +471,6 @@ static int pwm_backlight_probe(struct platform_device *pdev)

pb->notify = data->notify;
pb->notify_after = data->notify_after;
- pb->check_fb = data->check_fb;
pb->exit = data->exit;
pb->dev = &pdev->dev;
pb->enabled = false;
diff --git a/include/linux/pwm_backlight.h b/include/linux/pwm_backlight.h
index cdd2ac366bc72..0bf80e98d5b40 100644
--- a/include/linux/pwm_backlight.h
+++ b/include/linux/pwm_backlight.h
@@ -19,7 +19,6 @@ struct platform_pwm_backlight_data {
int (*notify)(struct device *dev, int brightness);
void (*notify_after)(struct device *dev, int brightness);
void (*exit)(struct device *dev);
- int (*check_fb)(struct device *dev, struct fb_info *info);
};

#endif
--
2.43.0