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-rw-r--r--drivers/pwm/core.c4
-rw-r--r--drivers/pwm/pwm-atmel-tcb.c2
-rw-r--r--drivers/pwm/pwm-atmel.c6
-rw-r--r--drivers/pwm/pwm-bcm-kona.c4
-rw-r--r--drivers/pwm/pwm-ep93xx.c4
-rw-r--r--drivers/pwm/pwm-imx.c2
-rw-r--r--drivers/pwm/pwm-mxs.c4
-rw-r--r--drivers/pwm/pwm-renesas-tpu.c2
-rw-r--r--drivers/pwm/pwm-tegra.c6
-rw-r--r--drivers/pwm/pwm-tiecap.c10
-rw-r--r--drivers/pwm/pwm-tiehrpwm.c6
-rw-r--r--drivers/pwm/sysfs.c2
-rw-r--r--include/linux/pwm.h5
13 files changed, 31 insertions, 26 deletions
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index 3a7769fe53de..f7c11d2dec37 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -455,7 +455,7 @@ int pwm_set_polarity(struct pwm_device *pwm, enum pwm_polarity polarity)
if (!pwm->chip->ops->set_polarity)
return -ENOSYS;
- if (test_bit(PWMF_ENABLED, &pwm->flags))
+ if (pwm_is_enabled(pwm))
return -EBUSY;
err = pwm->chip->ops->set_polarity(pwm->chip, pwm, polarity);
@@ -853,7 +853,7 @@ static void pwm_dbg_show(struct pwm_chip *chip, struct seq_file *s)
if (test_bit(PWMF_REQUESTED, &pwm->flags))
seq_puts(s, " requested");
- if (test_bit(PWMF_ENABLED, &pwm->flags))
+ if (pwm_is_enabled(pwm))
seq_puts(s, " enabled");
seq_puts(s, "\n");
diff --git a/drivers/pwm/pwm-atmel-tcb.c b/drivers/pwm/pwm-atmel-tcb.c
index d14e0677c92d..6da01b3bf6f4 100644
--- a/drivers/pwm/pwm-atmel-tcb.c
+++ b/drivers/pwm/pwm-atmel-tcb.c
@@ -347,7 +347,7 @@ static int atmel_tcb_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
tcbpwm->duty = duty;
/* If the PWM is enabled, call enable to apply the new conf */
- if (test_bit(PWMF_ENABLED, &pwm->flags))
+ if (pwm_is_enabled(pwm))
atmel_tcb_pwm_enable(chip, pwm);
return 0;
diff --git a/drivers/pwm/pwm-atmel.c b/drivers/pwm/pwm-atmel.c
index a947c9095d9d..b3b294de88e0 100644
--- a/drivers/pwm/pwm-atmel.c
+++ b/drivers/pwm/pwm-atmel.c
@@ -114,7 +114,7 @@ static int atmel_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
u32 val;
int ret;
- if (test_bit(PWMF_ENABLED, &pwm->flags) && (period_ns != pwm->period)) {
+ if (pwm_is_enabled(pwm) && (period_ns != pwm->period)) {
dev_err(chip->dev, "cannot change PWM period while enabled\n");
return -EBUSY;
}
@@ -176,7 +176,7 @@ static void atmel_pwm_config_v1(struct pwm_chip *chip, struct pwm_device *pwm,
* If the PWM channel is enabled, only update CDTY by using the update
* register, it needs to set bit 10 of CMR to 0
*/
- if (test_bit(PWMF_ENABLED, &pwm->flags))
+ if (pwm_is_enabled(pwm))
return;
/*
* If the PWM channel is disabled, write value to duty and period
@@ -191,7 +191,7 @@ static void atmel_pwm_config_v2(struct pwm_chip *chip, struct pwm_device *pwm,
{
struct atmel_pwm_chip *atmel_pwm = to_atmel_pwm_chip(chip);
- if (test_bit(PWMF_ENABLED, &pwm->flags)) {
+ if (pwm_is_enabled(pwm)) {
/*
* If the PWM channel is enabled, using the duty update register
* to update the value.
diff --git a/drivers/pwm/pwm-bcm-kona.c b/drivers/pwm/pwm-bcm-kona.c
index 7af8fea2dc5b..dfdcf88279ae 100644
--- a/drivers/pwm/pwm-bcm-kona.c
+++ b/drivers/pwm/pwm-bcm-kona.c
@@ -134,7 +134,7 @@ static int kona_pwmc_config(struct pwm_chip *chip, struct pwm_device *pwm,
}
/* If the PWM channel is enabled, write the settings to the HW */
- if (test_bit(PWMF_ENABLED, &pwm->flags)) {
+ if (pwm_is_enabled(pwm)) {
value = readl(kp->base + PRESCALE_OFFSET);
value &= ~PRESCALE_MASK(chan);
value |= prescale << PRESCALE_SHIFT(chan);
@@ -287,7 +287,7 @@ static int kona_pwmc_remove(struct platform_device *pdev)
unsigned int chan;
for (chan = 0; chan < kp->chip.npwm; chan++)
- if (test_bit(PWMF_ENABLED, &kp->chip.pwms[chan].flags))
+ if (pwm_is_enabled(&kp->chip.pwms[chan]))
clk_disable_unprepare(kp->clk);
return pwmchip_remove(&kp->chip);
diff --git a/drivers/pwm/pwm-ep93xx.c b/drivers/pwm/pwm-ep93xx.c
index e593e9c45c51..bbf10ae02f0e 100644
--- a/drivers/pwm/pwm-ep93xx.c
+++ b/drivers/pwm/pwm-ep93xx.c
@@ -82,7 +82,7 @@ static int ep93xx_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
* The clock needs to be enabled to access the PWM registers.
* Configuration can be changed at any time.
*/
- if (!test_bit(PWMF_ENABLED, &pwm->flags)) {
+ if (!pwm_is_enabled(pwm)) {
ret = clk_enable(ep93xx_pwm->clk);
if (ret)
return ret;
@@ -113,7 +113,7 @@ static int ep93xx_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
ret = -EINVAL;
}
- if (!test_bit(PWMF_ENABLED, &pwm->flags))
+ if (!pwm_is_enabled(pwm))
clk_disable(ep93xx_pwm->clk);
return ret;
diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c
index 66d6f0c5c421..008dc646225e 100644
--- a/drivers/pwm/pwm-imx.c
+++ b/drivers/pwm/pwm-imx.c
@@ -114,7 +114,7 @@ static int imx_pwm_config_v2(struct pwm_chip *chip,
unsigned long long c;
unsigned long period_cycles, duty_cycles, prescale;
unsigned int period_ms;
- bool enable = test_bit(PWMF_ENABLED, &pwm->flags);
+ bool enable = pwm_is_enabled(pwm);
int wait_count = 0, fifoav;
u32 cr, sr;
diff --git a/drivers/pwm/pwm-mxs.c b/drivers/pwm/pwm-mxs.c
index b430811e14f5..9a596324ebef 100644
--- a/drivers/pwm/pwm-mxs.c
+++ b/drivers/pwm/pwm-mxs.c
@@ -77,7 +77,7 @@ static int mxs_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
* If the PWM channel is disabled, make sure to turn on the clock
* before writing the register. Otherwise, keep it enabled.
*/
- if (!test_bit(PWMF_ENABLED, &pwm->flags)) {
+ if (!pwm_is_enabled(pwm)) {
ret = clk_prepare_enable(mxs->clk);
if (ret)
return ret;
@@ -92,7 +92,7 @@ static int mxs_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
/*
* If the PWM is not enabled, turn the clock off again to save power.
*/
- if (!test_bit(PWMF_ENABLED, &pwm->flags))
+ if (!pwm_is_enabled(pwm))
clk_disable_unprepare(mxs->clk);
return 0;
diff --git a/drivers/pwm/pwm-renesas-tpu.c b/drivers/pwm/pwm-renesas-tpu.c
index ee63f9e9d0fb..075c1a764ba2 100644
--- a/drivers/pwm/pwm-renesas-tpu.c
+++ b/drivers/pwm/pwm-renesas-tpu.c
@@ -301,7 +301,7 @@ static int tpu_pwm_config(struct pwm_chip *chip, struct pwm_device *_pwm,
pwm->duty = duty;
/* If the channel is disabled we're done. */
- if (!test_bit(PWMF_ENABLED, &_pwm->flags))
+ if (!pwm_is_enabled(_pwm))
return 0;
if (duty_only && pwm->timer_on) {
diff --git a/drivers/pwm/pwm-tegra.c b/drivers/pwm/pwm-tegra.c
index cabd7d8e05cc..d4de0607b502 100644
--- a/drivers/pwm/pwm-tegra.c
+++ b/drivers/pwm/pwm-tegra.c
@@ -112,7 +112,7 @@ static int tegra_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
* If the PWM channel is disabled, make sure to turn on the clock
* before writing the register. Otherwise, keep it enabled.
*/
- if (!test_bit(PWMF_ENABLED, &pwm->flags)) {
+ if (!pwm_is_enabled(pwm)) {
err = clk_prepare_enable(pc->clk);
if (err < 0)
return err;
@@ -124,7 +124,7 @@ static int tegra_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
/*
* If the PWM is not enabled, turn the clock off again to save power.
*/
- if (!test_bit(PWMF_ENABLED, &pwm->flags))
+ if (!pwm_is_enabled(pwm))
clk_disable_unprepare(pc->clk);
return 0;
@@ -214,7 +214,7 @@ static int tegra_pwm_remove(struct platform_device *pdev)
for (i = 0; i < NUM_PWM; i++) {
struct pwm_device *pwm = &pc->chip.pwms[i];
- if (!test_bit(PWMF_ENABLED, &pwm->flags))
+ if (!pwm_is_enabled(pwm))
if (clk_prepare_enable(pc->clk) < 0)
continue;
diff --git a/drivers/pwm/pwm-tiecap.c b/drivers/pwm/pwm-tiecap.c
index e557befdf4e6..616af764a276 100644
--- a/drivers/pwm/pwm-tiecap.c
+++ b/drivers/pwm/pwm-tiecap.c
@@ -97,7 +97,7 @@ static int ecap_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
writew(reg_val, pc->mmio_base + ECCTL2);
- if (!test_bit(PWMF_ENABLED, &pwm->flags)) {
+ if (!pwm_is_enabled(pwm)) {
/* Update active registers if not running */
writel(duty_cycles, pc->mmio_base + CAP2);
writel(period_cycles, pc->mmio_base + CAP1);
@@ -111,7 +111,7 @@ static int ecap_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
writel(period_cycles, pc->mmio_base + CAP3);
}
- if (!test_bit(PWMF_ENABLED, &pwm->flags)) {
+ if (!pwm_is_enabled(pwm)) {
reg_val = readw(pc->mmio_base + ECCTL2);
/* Disable APWM mode to put APWM output Low */
reg_val &= ~ECCTL2_APWM_MODE;
@@ -179,7 +179,7 @@ static void ecap_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
static void ecap_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
{
- if (test_bit(PWMF_ENABLED, &pwm->flags)) {
+ if (pwm_is_enabled(pwm)) {
dev_warn(chip->dev, "Removing PWM device without disabling\n");
pm_runtime_put_sync(chip->dev);
}
@@ -306,7 +306,7 @@ static int ecap_pwm_suspend(struct device *dev)
ecap_pwm_save_context(pc);
/* Disable explicitly if PWM is running */
- if (test_bit(PWMF_ENABLED, &pwm->flags))
+ if (pwm_is_enabled(pwm))
pm_runtime_put_sync(dev);
return 0;
@@ -318,7 +318,7 @@ static int ecap_pwm_resume(struct device *dev)
struct pwm_device *pwm = pc->chip.pwms;
/* Enable explicitly if PWM was running */
- if (test_bit(PWMF_ENABLED, &pwm->flags))
+ if (pwm_is_enabled(pwm))
pm_runtime_get_sync(dev);
ecap_pwm_restore_context(pc);
diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c
index 694b3cf7694b..6a41e66015b6 100644
--- a/drivers/pwm/pwm-tiehrpwm.c
+++ b/drivers/pwm/pwm-tiehrpwm.c
@@ -407,7 +407,7 @@ static void ehrpwm_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
{
struct ehrpwm_pwm_chip *pc = to_ehrpwm_pwm_chip(chip);
- if (test_bit(PWMF_ENABLED, &pwm->flags)) {
+ if (pwm_is_enabled(pwm)) {
dev_warn(chip->dev, "Removing PWM device without disabling\n");
pm_runtime_put_sync(chip->dev);
}
@@ -565,7 +565,7 @@ static int ehrpwm_pwm_suspend(struct device *dev)
for (i = 0; i < pc->chip.npwm; i++) {
struct pwm_device *pwm = &pc->chip.pwms[i];
- if (!test_bit(PWMF_ENABLED, &pwm->flags))
+ if (!pwm_is_enabled(pwm))
continue;
/* Disable explicitly if PWM is running */
@@ -582,7 +582,7 @@ static int ehrpwm_pwm_resume(struct device *dev)
for (i = 0; i < pc->chip.npwm; i++) {
struct pwm_device *pwm = &pc->chip.pwms[i];
- if (!test_bit(PWMF_ENABLED, &pwm->flags))
+ if (!pwm_is_enabled(pwm))
continue;
/* Enable explicitly if PWM was running */
diff --git a/drivers/pwm/sysfs.c b/drivers/pwm/sysfs.c
index 4bd0c639e16d..eecf21d68108 100644
--- a/drivers/pwm/sysfs.c
+++ b/drivers/pwm/sysfs.c
@@ -97,7 +97,7 @@ static ssize_t pwm_enable_show(struct device *child,
char *buf)
{
const struct pwm_device *pwm = child_to_pwm_device(child);
- int enabled = test_bit(PWMF_ENABLED, &pwm->flags);
+ int enabled = pwm_is_enabled(pwm);
return sprintf(buf, "%d\n", enabled);
}
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index 36262d08a9da..ec34f4d9a9ee 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -92,6 +92,11 @@ struct pwm_device {
enum pwm_polarity polarity;
};
+static inline bool pwm_is_enabled(const struct pwm_device *pwm)
+{
+ return test_bit(PWMF_ENABLED, &pwm->flags);
+}
+
static inline void pwm_set_period(struct pwm_device *pwm, unsigned int period)
{
if (pwm)
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