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| author | Alexander Sverdlin <alexander.sverdlin@gmail.com> | 2021-06-14 01:30:41 +0200 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2021-06-30 19:12:20 +0200 |
| commit | b235f8a39fc3ee09c804bf711c3039f92d867549 (patch) | |
| tree | ab1bb9f1145ac35e60d35e8f87224baab9601172 /drivers/pwm | |
| parent | 72cce47fe8f8dec55de8cd4574c574dec5195252 (diff) | |
| download | linux-stable-b235f8a39fc3ee09c804bf711c3039f92d867549.tar.gz linux-stable-b235f8a39fc3ee09c804bf711c3039f92d867549.tar.bz2 linux-stable-b235f8a39fc3ee09c804bf711c3039f92d867549.zip | |
pwm: ep93xx: Prepare clock before using it
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>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-ep93xx.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/pwm/pwm-ep93xx.c b/drivers/pwm/pwm-ep93xx.c index 3354b734f28f..70fa2957f9d3 100644 --- a/drivers/pwm/pwm-ep93xx.c +++ b/drivers/pwm/pwm-ep93xx.c @@ -68,7 +68,7 @@ static int ep93xx_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, if (state->polarity != pwm->state.polarity) { if (enabled) { writew(0x0, ep93xx_pwm->base + EP93XX_PWMx_ENABLE); - clk_disable(ep93xx_pwm->clk); + clk_disable_unprepare(ep93xx_pwm->clk); enabled = false; } @@ -76,7 +76,7 @@ static int ep93xx_pwm_apply(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; @@ -85,13 +85,13 @@ static int ep93xx_pwm_apply(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); } if (!state->enabled) { if (enabled) { writew(0x0, ep93xx_pwm->base + EP93XX_PWMx_ENABLE); - clk_disable(ep93xx_pwm->clk); + clk_disable_unprepare(ep93xx_pwm->clk); } return 0; @@ -111,7 +111,7 @@ static int ep93xx_pwm_apply(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; } @@ -142,14 +142,14 @@ static int ep93xx_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, } if (!pwm_is_enabled(pwm)) - clk_disable(ep93xx_pwm->clk); + clk_disable_unprepare(ep93xx_pwm->clk); if (ret) return ret; } if (!enabled) { - ret = clk_enable(ep93xx_pwm->clk); + ret = clk_prepare_enable(ep93xx_pwm->clk); if (ret) return ret; |