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pwm: pca9685: clarify pca9685_set_sleep_mode() interface.

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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>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
This commit is contained in:
Sven Van Asbroeck 2017-04-21 09:19:02 -04:00 committed by Thierry Reding
parent 36af66a790
commit 0829326ab2
1 changed files with 7 additions and 7 deletions
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14
drivers/pwm/pwm-pca9685.c
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@ -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