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Subject[PATCH 7/8] pwm: ep93xx: Prepare clock before using it
Date
From: Alexander Sverdlin <alexander.sverdlin@gmail.com>

Use clk_prepare_enable()/clk_disable_unprepare() in preparation for switch
to Common Clock Framework.

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
drivers/pwm/pwm-ep93xx.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/pwm/pwm-ep93xx.c b/drivers/pwm/pwm-ep93xx.c
index 4ca70794ad96..8c0d4d69d9e6 100644
--- a/drivers/pwm/pwm-ep93xx.c
+++ b/drivers/pwm/pwm-ep93xx.c
@@ -74,7 +74,7 @@ static int ep93xx_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
* Configuration can be changed at any time.
*/
if (!pwm_is_enabled(pwm)) {
- ret = clk_enable(ep93xx_pwm->clk);
+ ret = clk_prepare_enable(ep93xx_pwm->clk);
if (ret)
return ret;
}
@@ -105,7 +105,7 @@ static int ep93xx_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
}

if (!pwm_is_enabled(pwm))
- clk_disable(ep93xx_pwm->clk);
+ clk_disable_unprepare(ep93xx_pwm->clk);

return ret;
}
@@ -120,7 +120,7 @@ static int ep93xx_pwm_polarity(struct pwm_chip *chip, struct pwm_device *pwm,
* The clock needs to be enabled to access the PWM registers.
* Polarity can only be changed when the PWM is disabled.
*/
- ret = clk_enable(ep93xx_pwm->clk);
+ ret = clk_prepare_enable(ep93xx_pwm->clk);
if (ret)
return ret;

@@ -129,7 +129,7 @@ static int ep93xx_pwm_polarity(struct pwm_chip *chip, struct pwm_device *pwm,
else
writew(0x0, ep93xx_pwm->base + EP93XX_PWMx_INVERT);

- clk_disable(ep93xx_pwm->clk);
+ clk_disable_unprepare(ep93xx_pwm->clk);

return 0;
}
@@ -139,7 +139,7 @@ static int ep93xx_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
struct ep93xx_pwm *ep93xx_pwm = to_ep93xx_pwm(chip);
int ret;

- ret = clk_enable(ep93xx_pwm->clk);
+ ret = clk_prepare_enable(ep93xx_pwm->clk);
if (ret)
return ret;

@@ -153,7 +153,7 @@ static void ep93xx_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
struct ep93xx_pwm *ep93xx_pwm = to_ep93xx_pwm(chip);

writew(0x0, ep93xx_pwm->base + EP93XX_PWMx_ENABLE);
- clk_disable(ep93xx_pwm->clk);
+ clk_disable_unprepare(ep93xx_pwm->clk);
}

static const struct pwm_ops ep93xx_pwm_ops = {
--
2.26.2
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