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pwm: Add the pwm_is_enabled() helper

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Some PWM drivers are testing the PWMF_ENABLED flag. Create a helper
function to hide the logic behind enabled test. This will allow us to
smoothly move from the current approach to an atomic PWM update
approach.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
This commit is contained in:
Boris Brezillon
2015-07-01 10:21:47 +02:00
committed by Thierry Reding
parent d770e558e2
commit 5c31252c4a
13 changed files with 31 additions and 26 deletions
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2
drivers/pwm/pwm-imx.c
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@@ -114,7 +114,7 @@ static int imx_pwm_config_v2(struct pwm_chip *chip,
unsigned long long c;
unsigned long period_cycles, duty_cycles, prescale;
unsigned int period_ms;
bool enable = test_bit(PWMF_ENABLED, &pwm->flags);
bool enable = pwm_is_enabled(pwm);
int wait_count = 0, fifoav;
u32 cr, sr;