diff options
Diffstat (limited to 'drivers/pwm/core.c')
| -rw-r--r-- | drivers/pwm/core.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index dfbfbc52176..4b66bf09ee5 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -30,10 +30,9 @@ #include <linux/debugfs.h> #include <linux/seq_file.h> -#define MAX_PWMS 1024 +#include <dt-bindings/pwm/pwm.h> -/* flags in the third cell of the DT PWM specifier */ -#define PWM_SPEC_POLARITY (1 << 0) +#define MAX_PWMS 1024 static DEFINE_MUTEX(pwm_lookup_lock); static LIST_HEAD(pwm_lookup_list); @@ -149,7 +148,7 @@ of_pwm_xlate_with_flags(struct pwm_chip *pc, const struct of_phandle_args *args) pwm_set_period(pwm, args->args[1]); - if (args->args[2] & PWM_SPEC_POLARITY) + if (args->args[2] & PWM_POLARITY_INVERTED) pwm_set_polarity(pwm, PWM_POLARITY_INVERSED); else pwm_set_polarity(pwm, PWM_POLARITY_NORMAL); @@ -662,10 +661,16 @@ struct pwm_device *pwm_get(struct device *dev, const char *con_id) } } + mutex_unlock(&pwm_lookup_lock); + if (chip) pwm = pwm_request_from_chip(chip, index, con_id ?: dev_id); + if (IS_ERR(pwm)) + return pwm; + + pwm_set_period(pwm, p->period); + pwm_set_polarity(pwm, p->polarity); - mutex_unlock(&pwm_lookup_lock); return pwm; } @@ -809,12 +814,12 @@ static void pwm_dbg_show(struct pwm_chip *chip, struct seq_file *s) seq_printf(s, " pwm-%-3d (%-20.20s):", i, pwm->label); if (test_bit(PWMF_REQUESTED, &pwm->flags)) - seq_printf(s, " requested"); + seq_puts(s, " requested"); if (test_bit(PWMF_ENABLED, &pwm->flags)) - seq_printf(s, " enabled"); + seq_puts(s, " enabled"); - seq_printf(s, "\n"); + seq_puts(s, "\n"); } } |