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authorBoris Brezillon <boris.brezillon@free-electrons.com>2016-04-14 21:17:39 +0200
committerThierry Reding <thierry.reding@gmail.com>2016-05-17 14:48:02 +0200
commit09a7e4a3d9fcb95ade2cb02167e85fbeb8315ce0 (patch)
treeae68e6ab54506c65b510d83aeda3c94906a7faca /include/linux/pwm.h
parent43a276b003ed2e03de9d94b02a1ba49c1849b931 (diff)
pwm: Move the enabled/disabled info into pwm_state
Prepare the transition to PWM atomic update by moving the enabled and disabled state into the pwm_state struct. This way we can easily update the whole PWM state by copying the new state in the ->state field. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'include/linux/pwm.h')
-rw-r--r--include/linux/pwm.h11
1 files changed, 8 insertions, 3 deletions
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index 51d4005418f9..150563a806d6 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -94,8 +94,7 @@ struct pwm_args {
enum {
PWMF_REQUESTED = 1 << 0,
- PWMF_ENABLED = 1 << 1,
- PWMF_EXPORTED = 1 << 2,
+ PWMF_EXPORTED = 1 << 1,
};
/*
@@ -103,11 +102,13 @@ enum {
* @period: PWM period (in nanoseconds)
* @duty_cycle: PWM duty cycle (in nanoseconds)
* @polarity: PWM polarity
+ * @enabled: PWM enabled status
*/
struct pwm_state {
unsigned int period;
unsigned int duty_cycle;
enum pwm_polarity polarity;
+ bool enabled;
};
/**
@@ -146,7 +147,11 @@ static inline void pwm_get_state(const struct pwm_device *pwm,
static inline bool pwm_is_enabled(const struct pwm_device *pwm)
{
- return test_bit(PWMF_ENABLED, &pwm->flags);
+ struct pwm_state state;
+
+ pwm_get_state(pwm, &state);
+
+ return state.enabled;
}
static inline void pwm_set_period(struct pwm_device *pwm, unsigned int period)