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From: Sven Van Asbroeck <thesven73@gmail.com>
To: thierry.reding@gmail.com
Cc: linux-pwm@vger.kernel.org, linux-kernel@vger.kernel.org,
	mika.westerberg@linux.intel.com,
	andriy.shevchenko@linux.intel.com
Subject: [PATCH v1] pwm: pca9685: clarify pca9685_set_sleep_mode() interface.
Date: Fri, 21 Apr 2017 09:19:02 -0400	[thread overview]
Message-ID: <1492780742-11251-1-git-send-email-thesven73@gmail.com> (raw)

The function
static void pca9685_set_sleep_mode(struct pca9685 *pca, int sleep)
takes the chip in and out of sleep mode, depending on the value of
sleep, which is interpreted as a boolean.

To clarify that 'int sleep' is a boolean and not a sleep delay,
change the function interface to:
static void pca9685_set_sleep_mode(struct pca9685 *pca, bool enable)

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sven Van Asbroeck <thesven73@gmail.com>
---
 drivers/pwm/pwm-pca9685.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/pwm/pwm-pca9685.c b/drivers/pwm/pwm-pca9685.c
index 5f55cfa..a7eaf962 100644
--- a/drivers/pwm/pwm-pca9685.c
+++ b/drivers/pwm/pwm-pca9685.c
@@ -241,11 +241,11 @@ static inline int pca9685_pwm_gpio_probe(struct pca9685 *pca)
 }
 #endif
 
-static void pca9685_set_sleep_mode(struct pca9685 *pca, int sleep)
+static void pca9685_set_sleep_mode(struct pca9685 *pca, bool enable)
 {
 	regmap_update_bits(pca->regmap, PCA9685_MODE1,
-			   MODE1_SLEEP, sleep ? MODE1_SLEEP : 0);
-	if (!sleep) {
+			   MODE1_SLEEP, enable ? MODE1_SLEEP : 0);
+	if (!enable) {
 		/* Wait 500us for the oscillator to be back up */
 		udelay(500);
 	}
@@ -272,13 +272,13 @@ static int pca9685_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 			 * state is guaranteed active here.
 			 */
 			/* Put chip into sleep mode */
-			pca9685_set_sleep_mode(pca, 1);
+			pca9685_set_sleep_mode(pca, true);
 
 			/* Change the chip-wide output frequency */
 			regmap_write(pca->regmap, PCA9685_PRESCALE, prescale);
 
 			/* Wake the chip up */
-			pca9685_set_sleep_mode(pca, 0);
+			pca9685_set_sleep_mode(pca, false);
 
 			pca->period_ns = period_ns;
 		} else {
@@ -534,7 +534,7 @@ static int pca9685_pwm_runtime_suspend(struct device *dev)
 	struct i2c_client *client = to_i2c_client(dev);
 	struct pca9685 *pca = i2c_get_clientdata(client);
 
-	pca9685_set_sleep_mode(pca, 1);
+	pca9685_set_sleep_mode(pca, true);
 	return 0;
 }
 
@@ -543,7 +543,7 @@ static int pca9685_pwm_runtime_resume(struct device *dev)
 	struct i2c_client *client = to_i2c_client(dev);
 	struct pca9685 *pca = i2c_get_clientdata(client);
 
-	pca9685_set_sleep_mode(pca, 0);
+	pca9685_set_sleep_mode(pca, false);
 	return 0;
 }
 #endif
-- 
1.9.1

             reply	other threads:[~2017-04-21 13:19 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-21 13:19 Sven Van Asbroeck [this message]
2017-04-21 14:48 ` [PATCH v1] pwm: pca9685: clarify pca9685_set_sleep_mode() interface Andy Shevchenko
2017-07-25 11:42 ` Thierry Reding

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