@@ -32,6 +32,7 @@ struct ecap_context {
};
struct ecap_pwm_chip {
+ struct device *parent;
unsigned int clk_rate;
void __iomem *mmio_base;
struct ecap_context ctx;
@@ -69,7 +70,7 @@ static int ecap_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
duty_cycles = (u32)c;
}
- pm_runtime_get_sync(chip->dev);
+ pm_runtime_get_sync(pc->parent);
value = readw(pc->mmio_base + ECCTL2);
@@ -99,7 +100,7 @@ static int ecap_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
writew(value, pc->mmio_base + ECCTL2);
}
- pm_runtime_put_sync(chip->dev);
+ pm_runtime_put_sync(pc->parent);
return 0;
}
@@ -110,7 +111,7 @@ static int ecap_pwm_set_polarity(struct pwm_chip *chip, struct pwm_device *pwm,
struct ecap_pwm_chip *pc = to_ecap_pwm_chip(chip);
u16 value;
- pm_runtime_get_sync(chip->dev);
+ pm_runtime_get_sync(pc->parent);
value = readw(pc->mmio_base + ECCTL2);
@@ -123,7 +124,7 @@ static int ecap_pwm_set_polarity(struct pwm_chip *chip, struct pwm_device *pwm,
writew(value, pc->mmio_base + ECCTL2);
- pm_runtime_put_sync(chip->dev);
+ pm_runtime_put_sync(pc->parent);
return 0;
}
@@ -134,7 +135,7 @@ static int ecap_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
u16 value;
/* Leave clock enabled on enabling PWM */
- pm_runtime_get_sync(chip->dev);
+ pm_runtime_get_sync(pc->parent);
/*
* Enable 'Free run Time stamp counter mode' to start counter
@@ -161,7 +162,7 @@ static void ecap_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
writew(value, pc->mmio_base + ECCTL2);
/* Disable clock on PWM disable */
- pm_runtime_put_sync(chip->dev);
+ pm_runtime_put_sync(pc->parent);
}
static int ecap_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
@@ -239,6 +240,7 @@ static int ecap_pwm_probe(struct platform_device *pdev)
return PTR_ERR(clk);
}
+ pc->parent = &pdev->dev;
pc->clk_rate = clk_get_rate(clk);
if (!pc->clk_rate) {
dev_err(&pdev->dev, "failed to get clock rate\n");
@@ -273,11 +275,11 @@ static void ecap_pwm_save_context(struct pwm_chip *chip)
{
struct ecap_pwm_chip *pc = to_ecap_pwm_chip(chip);
- pm_runtime_get_sync(chip->dev);
+ pm_runtime_get_sync(pc->parent);
pc->ctx.ecctl2 = readw(pc->mmio_base + ECCTL2);
pc->ctx.cap4 = readl(pc->mmio_base + CAP4);
pc->ctx.cap3 = readl(pc->mmio_base + CAP3);
- pm_runtime_put_sync(chip->dev);
+ pm_runtime_put_sync(pc->parent);
}
static void ecap_pwm_restore_context(struct pwm_chip *chip)
struct pwm_chip::dev is about to change. To not have to touch this driver in the same commit as struct pwm_chip::dev, store a pointer to the parent device in driver data. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/pwm/pwm-tiecap.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-)