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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2020-02-10 22:22:38 +0100
committerThierry Reding <thierry.reding@gmail.com>2020-03-30 16:55:25 +0200
commitaad4e530c241cbe862aff445f13db9099c9980eb (patch)
tree21a99328da7768bcae210a7bc1a3ee6396bf351f /drivers/pwm
parent15d4dbd601591858611184f9ddeb5bf21569159c (diff)
downloadlinux-aad4e530c241cbe862aff445f13db9099c9980eb.tar.bz2
pwm: imx27: Simplify helper function to enable and disable clocks
pwm_imx27_clk_prepare_enable() took a pointer to a struct pwm_chip just to convert it to a struct pwm_imx27_chip pointer while all callers already have the latter. Ditto for pwm_imx27_clk_disable_unprepare(). Signed-off-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-imx27.c17
1 files changed, 7 insertions, 10 deletions
diff --git a/drivers/pwm/pwm-imx27.c b/drivers/pwm/pwm-imx27.c
index 7e5ed0152977..e04ae566bbf9 100644
--- a/drivers/pwm/pwm-imx27.c
+++ b/drivers/pwm/pwm-imx27.c
@@ -96,9 +96,8 @@ struct pwm_imx27_chip {
#define to_pwm_imx27_chip(chip) container_of(chip, struct pwm_imx27_chip, chip)
-static int pwm_imx27_clk_prepare_enable(struct pwm_chip *chip)
+static int pwm_imx27_clk_prepare_enable(struct pwm_imx27_chip *imx)
{
- struct pwm_imx27_chip *imx = to_pwm_imx27_chip(chip);
int ret;
ret = clk_prepare_enable(imx->clk_ipg);
@@ -114,10 +113,8 @@ static int pwm_imx27_clk_prepare_enable(struct pwm_chip *chip)
return 0;
}
-static void pwm_imx27_clk_disable_unprepare(struct pwm_chip *chip)
+static void pwm_imx27_clk_disable_unprepare(struct pwm_imx27_chip *imx)
{
- struct pwm_imx27_chip *imx = to_pwm_imx27_chip(chip);
-
clk_disable_unprepare(imx->clk_per);
clk_disable_unprepare(imx->clk_ipg);
}
@@ -130,7 +127,7 @@ static void pwm_imx27_get_state(struct pwm_chip *chip,
u64 tmp;
int ret;
- ret = pwm_imx27_clk_prepare_enable(chip);
+ ret = pwm_imx27_clk_prepare_enable(imx);
if (ret < 0)
return;
@@ -175,7 +172,7 @@ static void pwm_imx27_get_state(struct pwm_chip *chip,
state->duty_cycle = DIV_ROUND_CLOSEST_ULL(tmp, pwm_clk);
if (!state->enabled)
- pwm_imx27_clk_disable_unprepare(chip);
+ pwm_imx27_clk_disable_unprepare(imx);
}
static void pwm_imx27_sw_reset(struct pwm_chip *chip)
@@ -259,7 +256,7 @@ static int pwm_imx27_apply(struct pwm_chip *chip, struct pwm_device *pwm,
if (cstate.enabled) {
pwm_imx27_wait_fifo_slot(chip, pwm);
} else {
- ret = pwm_imx27_clk_prepare_enable(chip);
+ ret = pwm_imx27_clk_prepare_enable(imx);
if (ret)
return ret;
@@ -290,7 +287,7 @@ static int pwm_imx27_apply(struct pwm_chip *chip, struct pwm_device *pwm,
writel(cr, imx->mmio_base + MX3_PWMCR);
if (!state->enabled)
- pwm_imx27_clk_disable_unprepare(chip);
+ pwm_imx27_clk_disable_unprepare(imx);
return 0;
}
@@ -361,7 +358,7 @@ static int pwm_imx27_remove(struct platform_device *pdev)
imx = platform_get_drvdata(pdev);
- pwm_imx27_clk_disable_unprepare(&imx->chip);
+ pwm_imx27_clk_disable_unprepare(imx);
return pwmchip_remove(&imx->chip);
}