diff options
Diffstat (limited to 'drivers/pwm/core.c')
| -rw-r--r-- | drivers/pwm/core.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index f877e77d9184..5a7f6598c05f 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -20,6 +20,9 @@ #include <dt-bindings/pwm/pwm.h> +#define CREATE_TRACE_POINTS +#include <trace/events/pwm.h> + #define MAX_PWMS 1024 static DEFINE_MUTEX(pwm_lookup_lock); @@ -114,6 +117,11 @@ static int pwm_device_request(struct pwm_device *pwm, const char *label) } } + if (pwm->chip->ops->get_state) { + pwm->chip->ops->get_state(pwm->chip, pwm, &pwm->state); + trace_pwm_get(pwm, &pwm->state); + } + set_bit(PWMF_REQUESTED, &pwm->flags); pwm->label = label; @@ -283,9 +291,6 @@ int pwmchip_add_with_polarity(struct pwm_chip *chip, pwm->hwpwm = i; pwm->state.polarity = polarity; - if (chip->ops->get_state) - chip->ops->get_state(chip, pwm, &pwm->state); - radix_tree_insert(&pwm_tree, pwm->pwm, pwm); } @@ -472,6 +477,8 @@ int pwm_apply_state(struct pwm_device *pwm, const struct pwm_state *state) if (err) return err; + trace_pwm_apply(pwm, state); + pwm->state = *state; } else { /* |