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path: root/drivers/pwm
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Diffstat (limited to 'drivers/pwm')
-rw-r--r--drivers/pwm/pwm-tiehrpwm.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c
index 48a485c2e422..aa4c5586f53b 100644
--- a/drivers/pwm/pwm-tiehrpwm.c
+++ b/drivers/pwm/pwm-tiehrpwm.c
@@ -359,7 +359,7 @@ static int ehrpwm_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
configure_polarity(pc, pwm->hwpwm);
/* Enable TBCLK before enabling PWM device */
- ret = clk_prepare_enable(pc->tbclk);
+ ret = clk_enable(pc->tbclk);
if (ret) {
pr_err("Failed to enable TBCLK for %s\n",
dev_name(pc->chip.dev));
@@ -395,7 +395,7 @@ 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_unprepare(pc->tbclk);
+ clk_disable(pc->tbclk);
/* Stop Time base counter */
ehrpwm_modify(pc->mmio_base, TBCTL, TBCTL_RUN_MASK, TBCTL_STOP_NEXT);
@@ -482,6 +482,12 @@ static int ehrpwm_pwm_probe(struct platform_device *pdev)
return PTR_ERR(pc->tbclk);
}
+ ret = clk_prepare(pc->tbclk);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "clk_prepare() failed: %d\n", ret);
+ return ret;
+ }
+
ret = pwmchip_add(&pc->chip);
if (ret < 0) {
dev_err(&pdev->dev, "pwmchip_add() failed: %d\n", ret);
@@ -508,6 +514,7 @@ pwmss_clk_failure:
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
pwmchip_remove(&pc->chip);
+ clk_unprepare(pc->tbclk);
return ret;
}
@@ -515,6 +522,8 @@ static int ehrpwm_pwm_remove(struct platform_device *pdev)
{
struct ehrpwm_pwm_chip *pc = platform_get_drvdata(pdev);
+ clk_unprepare(pc->tbclk);
+
pm_runtime_get_sync(&pdev->dev);
/*
* Due to hardware misbehaviour, acknowledge of the stop_req