diff options
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-tiehrpwm.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c index 72a6dd4..4fcafbf 100644 --- a/drivers/pwm/pwm-tiehrpwm.c +++ b/drivers/pwm/pwm-tiehrpwm.c @@ -318,6 +318,7 @@ static int ehrpwm_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm) { struct ehrpwm_pwm_chip *pc = to_ehrpwm_pwm_chip(chip); unsigned short aqcsfrc_val, aqcsfrc_mask; + int ret; /* Leave clock enabled on enabling PWM */ pm_runtime_get_sync(chip->dev); @@ -341,7 +342,12 @@ static int ehrpwm_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm) configure_polarity(pc, pwm->hwpwm); /* Enable TBCLK before enabling PWM device */ - clk_enable(pc->tbclk); + ret = clk_prepare_enable(pc->tbclk); + if (ret) { + pr_err("Failed to enable TBCLK for %s\n", + dev_name(pc->chip.dev)); + return ret; + } /* Enable time counter for free_run */ ehrpwm_modify(pc->mmio_base, TBCTL, TBCTL_RUN_MASK, TBCTL_FREE_RUN); @@ -372,7 +378,7 @@ static void ehrpwm_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm) ehrpwm_modify(pc->mmio_base, AQCSFRC, aqcsfrc_mask, aqcsfrc_val); /* Disabling TBCLK on PWM disable */ - clk_disable(pc->tbclk); + clk_disable_unprepare(pc->tbclk); /* Stop Time base counter */ ehrpwm_modify(pc->mmio_base, TBCTL, TBCTL_RUN_MASK, TBCTL_STOP_NEXT); |