Subject: linux-next: build failure after merge of the pwm tree

From: Stephen Rothwell <[email-masked]>
Date: Thu, 21 Dec 2023 16:58:05 +1100

Hi all,

After merging the backlight tree, today's linux-next build (x86_64
allmodconfig) failed like this:

drivers/video/backlight/mp3309c.c: In function 'mp3309c_bl_update_status':
drivers/video/backlight/mp3309c.c:134:23: error: implicit declaration of function 'pwm_apply_state'; did you mean 'pwm_apply_args'? [-Werror=implicit-function-declaration]
  134 |                 ret = pwm_apply_state(chip->pwmd, &pwmstate);
      |                       ^~~~~~~~~~~~~~~
      |                       pwm_apply_args

Caused by commit

  c748a6d77c06 ("pwm: Rename pwm_apply_state() to pwm_apply_might_sleep()")

interacting with commit

  2e914516a58c ("backlight: mp3309c: Add support for MPS MP3309C")

from the backlight tree.

I have appplied the following merge fix patch.

From: Stephen Rothwell <[email-masked]>
Date: Thu, 21 Dec 2023 16:13:37 +1100
Subject: [PATCH] fix up for "backlight: mp3309c: Add support for MPS MP3309C"

from the backlight tree interacting with commit

  c748a6d77c06 ("pwm: Rename pwm_apply_state() to pwm_apply_might_sleep()")

from the pwm tree.

Signed-off-by: Stephen Rothwell <[email-masked]>
---
 drivers/video/backlight/mp3309c.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/backlight/mp3309c.c b/drivers/video/backlight/mp3309c.c
index 34d71259fac1..b0d9aef6942b 100644
--- a/drivers/video/backlight/mp3309c.c
+++ b/drivers/video/backlight/mp3309c.c
@@ -131,7 +131,7 @@ static int mp3309c_bl_update_status(struct backlight_device *bl)
 					    chip->pdata->levels[brightness],
 					    chip->pdata->levels[chip->pdata->max_brightness]);
 		pwmstate.enabled = true;
-		ret = pwm_apply_state(chip->pwmd, &pwmstate);
+		ret = pwm_apply_might_sleep(chip->pwmd, &pwmstate);
 		if (ret)
 			return ret;
 
@@ -393,7 +393,7 @@ static int mp3309c_probe(struct i2c_client *client)
 					    chip->pdata->default_brightness,
 					    chip->pdata->max_brightness);
 		pwmstate.enabled = true;
-		ret = pwm_apply_state(chip->pwmd, &pwmstate);
+		ret = pwm_apply_might_sleep(chip->pwmd, &pwmstate);
 		if (ret)
 			return dev_err_probe(chip->dev, ret,
 					     "error setting pwm device\n");
-- 
2.43.0

-- 
Cheers,
Stephen Rothwell