pwm: fsl-ftm: Use regmap_clear_bits and regmap_set_bits where applicable

Found using coccinelle and the following semantic patch:

@@
expression map, reg, bits;
@@

- regmap_update_bits(map, reg, bits, bits)
+ regmap_set_bits(map, reg, bits)

@@
expression map, reg, bits;
@@

- regmap_update_bits(map, reg, bits, 0)
+ regmap_clear_bits(map, reg, bits)

Link: https://lore.kernel.org/r/20221115111347.3705732-2-u.kleine-koenig@pengutronix.deSigned-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

drivers/pwm/pwm-fsl-ftm.c

@@ -65,13 +65,12 @@ static void ftm_clear_write_protection(struct fsl_pwm_chip *fpc)
 
 	regmap_read(fpc->regmap, FTM_FMS, &val);
 	if (val & FTM_FMS_WPEN)
-		regmap_update_bits(fpc->regmap, FTM_MODE, FTM_MODE_WPDIS,
-				   FTM_MODE_WPDIS);
+		regmap_set_bits(fpc->regmap, FTM_MODE, FTM_MODE_WPDIS);
 }
 
 static void ftm_set_write_protection(struct fsl_pwm_chip *fpc)
 {
-	regmap_update_bits(fpc->regmap, FTM_FMS, FTM_FMS_WPEN, FTM_FMS_WPEN);
+	regmap_set_bits(fpc->regmap, FTM_FMS, FTM_FMS_WPEN);
 }
 
 static bool fsl_pwm_periodcfg_are_equal(const struct fsl_pwm_periodcfg *a,
@@ -94,8 +93,7 @@ static int fsl_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
 	ret = clk_prepare_enable(fpc->ipg_clk);
 	if (!ret && fpc->soc->has_enable_bits) {
 		mutex_lock(&fpc->lock);
-		regmap_update_bits(fpc->regmap, FTM_SC, BIT(pwm->hwpwm + 16),
-				   BIT(pwm->hwpwm + 16));
+		regmap_set_bits(fpc->regmap, FTM_SC, BIT(pwm->hwpwm + 16));
 		mutex_unlock(&fpc->lock);
 	}
 
@@ -108,8 +106,7 @@ static void fsl_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
 
 	if (fpc->soc->has_enable_bits) {
 		mutex_lock(&fpc->lock);
-		regmap_update_bits(fpc->regmap, FTM_SC, BIT(pwm->hwpwm + 16),
-				   0);
+		regmap_clear_bits(fpc->regmap, FTM_SC, BIT(pwm->hwpwm + 16));
 		mutex_unlock(&fpc->lock);
 	}
 
@@ -317,8 +314,8 @@ static int fsl_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
 
 	if (!newstate->enabled) {
 		if (oldstate->enabled) {
-			regmap_update_bits(fpc->regmap, FTM_OUTMASK,
-					   BIT(pwm->hwpwm), BIT(pwm->hwpwm));
+			regmap_set_bits(fpc->regmap, FTM_OUTMASK,
+					BIT(pwm->hwpwm));
 			clk_disable_unprepare(fpc->clk[FSL_PWM_CLK_CNTEN]);
 			clk_disable_unprepare(fpc->clk[fpc->period.clk_select]);
 		}
@@ -342,8 +339,7 @@ static int fsl_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
 			goto end_mutex;
 		}
 
-		regmap_update_bits(fpc->regmap, FTM_OUTMASK, BIT(pwm->hwpwm),
-				   0);
+		regmap_clear_bits(fpc->regmap, FTM_OUTMASK, BIT(pwm->hwpwm));
 	}
 
 end_mutex: