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pwm: rcar: Use PM Runtime to control module clock 

Runtime PM API (pm_runtime_get_sync/pm_runtime_put) should be used
to control module clock instead of clk_prepare_enable and
clk_disable_unprepare.

Signed-off-by: Hien Dang <hien.dang.eb@renesas.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
hifive-unleashed-5.1
Hien Dang 2018-03-13 17:18:17 +09:00 committed by Thierry Reding
parent aa7c49328b
commit f2e6142cdc
1 changed files with 2 additions and 6 deletions
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8
drivers/pwm/pwm-rcar.c
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@ -134,16 +134,12 @@ static int rcar_pwm_set_counter(struct rcar_pwm_chip *rp, int div, int duty_ns,
static int rcar_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
{
struct rcar_pwm_chip *rp = to_rcar_pwm_chip(chip);
return clk_prepare_enable(rp->clk);
return pm_runtime_get_sync(chip->dev);
}
static void rcar_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
{
struct rcar_pwm_chip *rp = to_rcar_pwm_chip(chip);
clk_disable_unprepare(rp->clk);
pm_runtime_put(chip->dev);
}
static int rcar_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,