Patch "pwm: atmel-tcb: Unroll atmel_tcb_pwm_set_polarity() into only caller" has been added to the 6.1-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    pwm: atmel-tcb: Unroll atmel_tcb_pwm_set_polarity() into only caller

to the 6.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     pwm-atmel-tcb-unroll-atmel_tcb_pwm_set_polarity-into.patch
and it can be found in the queue-6.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit b2675c7e34631d461b0a06c0604fe7887e09a239
Author: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Date:   Wed Jul 19 21:20:12 2023 +0200

    pwm: atmel-tcb: Unroll atmel_tcb_pwm_set_polarity() into only caller
    
    [ Upstream commit 9a6ac822a2153d583b0da95b8693e954b5f4203a ]
    
    atmel_tcb_pwm_set_polarity() is only called once and effectively wraps
    an assignment only. Replace the function call by the respective
    assignment.
    
    Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
    Reviewed-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxx>
    Signed-off-by: Thierry Reding <thierry.reding@xxxxxxxxx>
    Stable-dep-of: 37f7707077f5 ("pwm: atmel-tcb: Fix race condition and convert to guards")
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/pwm/pwm-atmel-tcb.c b/drivers/pwm/pwm-atmel-tcb.c
index ae274bd7907dd..32a60d7f8ed2e 100644
--- a/drivers/pwm/pwm-atmel-tcb.c
+++ b/drivers/pwm/pwm-atmel-tcb.c
@@ -68,18 +68,6 @@ static inline struct atmel_tcb_pwm_chip *to_tcb_chip(struct pwm_chip *chip)
 	return container_of(chip, struct atmel_tcb_pwm_chip, chip);
 }
 
-static int atmel_tcb_pwm_set_polarity(struct pwm_chip *chip,
-				      struct pwm_device *pwm,
-				      enum pwm_polarity polarity)
-{
-	struct atmel_tcb_pwm_chip *tcbpwmc = to_tcb_chip(chip);
-	struct atmel_tcb_pwm_device *tcbpwm = &tcbpwmc->pwms[pwm->hwpwm];
-
-	tcbpwm->polarity = polarity;
-
-	return 0;
-}
-
 static int atmel_tcb_pwm_request(struct pwm_chip *chip,
 				 struct pwm_device *pwm)
 {
@@ -357,11 +345,12 @@ static int atmel_tcb_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 static int atmel_tcb_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
 			       const struct pwm_state *state)
 {
+	struct atmel_tcb_pwm_chip *tcbpwmc = to_tcb_chip(chip);
+	struct atmel_tcb_pwm_device *tcbpwm = &tcbpwmc->pwms[pwm->hwpwm];
 	int duty_cycle, period;
 	int ret;
 
-	/* This function only sets a flag in driver data */
-	atmel_tcb_pwm_set_polarity(chip, pwm, state->polarity);
+	tcbpwm->polarity = state->polarity;
 
 	if (!state->enabled) {
 		atmel_tcb_pwm_disable(chip, pwm);