diff options
| -rw-r--r-- | drivers/pwm/pwm-twl.c | 62 |
1 files changed, 54 insertions, 8 deletions
diff --git a/drivers/pwm/pwm-twl.c b/drivers/pwm/pwm-twl.c index 203194f2c92e..86567add79db 100644 --- a/drivers/pwm/pwm-twl.c +++ b/drivers/pwm/pwm-twl.c @@ -58,9 +58,9 @@ static inline struct twl_pwm_chip *to_twl(struct pwm_chip *chip) } static int twl_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, - int duty_ns, int period_ns) + u64 duty_ns, u64 period_ns) { - int duty_cycle = DIV_ROUND_UP(duty_ns * TWL_PWM_MAX, period_ns) + 1; + int duty_cycle = DIV64_U64_ROUND_UP(duty_ns * TWL_PWM_MAX, period_ns) + 1; u8 pwm_config[2] = { 1, 0 }; int base, ret; @@ -279,19 +279,65 @@ out: mutex_unlock(&twl->mutex); } +static int twl4030_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, + const struct pwm_state *state) +{ + int err; + + if (state->polarity != PWM_POLARITY_NORMAL) + return -EINVAL; + + if (!state->enabled) { + if (pwm->state.enabled) + twl4030_pwm_disable(chip, pwm); + + return 0; + } + + err = twl_pwm_config(pwm->chip, pwm, state->duty_cycle, state->period); + if (err) + return err; + + if (!pwm->state.enabled) + err = twl4030_pwm_enable(chip, pwm); + + return err; +} + +static int twl6030_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, + const struct pwm_state *state) +{ + int err; + + if (state->polarity != PWM_POLARITY_NORMAL) + return -EINVAL; + + if (!state->enabled) { + if (pwm->state.enabled) + twl6030_pwm_disable(chip, pwm); + + return 0; + } + + err = twl_pwm_config(pwm->chip, pwm, state->duty_cycle, state->period); + if (err) + return err; + + if (!pwm->state.enabled) + err = twl6030_pwm_enable(chip, pwm); + + return err; +} + static const struct pwm_ops twl4030_pwm_ops = { - .config = twl_pwm_config, - .enable = twl4030_pwm_enable, - .disable = twl4030_pwm_disable, + .apply = twl4030_pwm_apply, .request = twl4030_pwm_request, .free = twl4030_pwm_free, .owner = THIS_MODULE, }; static const struct pwm_ops twl6030_pwm_ops = { - .config = twl_pwm_config, - .enable = twl6030_pwm_enable, - .disable = twl6030_pwm_disable, + .apply = twl6030_pwm_apply, .owner = THIS_MODULE, }; |