lkml.org 
[lkml]   [2022]   [Oct]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 5/5] pwm: jz4740: Use regmap_{set,clear}_bits
Date
Simplify a bit the code by using regmap_set_bits() and
regmap_clear_bits() instead of regmap_update_bits() when possible.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
drivers/pwm/pwm-jz4740.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/pwm/pwm-jz4740.c b/drivers/pwm/pwm-jz4740.c
index c0afc0c316a8..22fcdca66081 100644
--- a/drivers/pwm/pwm-jz4740.c
+++ b/drivers/pwm/pwm-jz4740.c
@@ -88,8 +88,7 @@ static int jz4740_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
struct jz4740_pwm_chip *jz = to_jz4740(chip);

/* Enable PWM output */
- regmap_update_bits(jz->map, TCU_REG_TCSRc(pwm->hwpwm),
- TCU_TCSR_PWM_EN, TCU_TCSR_PWM_EN);
+ regmap_set_bits(jz->map, TCU_REG_TCSRc(pwm->hwpwm), TCU_TCSR_PWM_EN);

/* Start counter */
regmap_write(jz->map, TCU_REG_TESR, BIT(pwm->hwpwm));
@@ -129,8 +128,7 @@ static void jz4740_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
* In TCU2 mode (channel 1/2 on JZ4750+), this must be done before the
* counter is stopped, while in TCU1 mode the order does not matter.
*/
- regmap_update_bits(jz->map, TCU_REG_TCSRc(pwm->hwpwm),
- TCU_TCSR_PWM_EN, 0);
+ regmap_clear_bits(jz->map, TCU_REG_TCSRc(pwm->hwpwm), TCU_TCSR_PWM_EN);

/* Stop counter */
regmap_write(jz->map, TCU_REG_TECR, BIT(pwm->hwpwm));
@@ -204,8 +202,8 @@ static int jz4740_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
regmap_write(jz4740->map, TCU_REG_TDFRc(pwm->hwpwm), period);

/* Set abrupt shutdown */
- regmap_update_bits(jz4740->map, TCU_REG_TCSRc(pwm->hwpwm),
- TCU_TCSR_PWM_SD, TCU_TCSR_PWM_SD);
+ regmap_set_bits(jz4740->map, TCU_REG_TCSRc(pwm->hwpwm),
+ TCU_TCSR_PWM_SD);

if (state->enabled) {
/*
--
2.35.1
\
 
 \ /
  Last update: 2022-10-25 01:33    [W:0.459 / U:0.372 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site