pwm: Make use of pwm_get_xxx() helpers where appropriate

Use the pwm_get_xxx() helpers instead of directly accessing the fields
in struct pwm_device. This will allow us to smoothly move to the atomic
update approach.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

5 files changed, 12 insertions, 9 deletions

diff --git a/drivers/pwm/pwm-atmel.c b/drivers/pwm/pwm-atmel.c
index b3b294de88e0..0e4bd4e8e582 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 (pwm_is_enabled(pwm) && (period_ns != pwm->period)) {
+        if (pwm_is_enabled(pwm) && (period_ns != pwm_get_period(pwm))) {
                 dev_err(chip->dev, "cannot change PWM period while enabled\n");
                 return -EBUSY;
         }
diff --git a/drivers/pwm/pwm-bcm-kona.c b/drivers/pwm/pwm-bcm-kona.c
index dfdcf88279ae..920cd1b5aa9d 100644
--- a/drivers/pwm/pwm-bcm-kona.c
+++ b/drivers/pwm/pwm-bcm-kona.c
@@ -194,7 +194,8 @@ static int kona_pwmc_enable(struct pwm_chip *chip, struct pwm_device *pwm)
                 return ret;
         }
 
-        ret = kona_pwmc_config(chip, pwm, pwm->duty_cycle, pwm->period);
+        ret = kona_pwmc_config(chip, pwm, pwm_get_duty_cycle(pwm),
+                               pwm_get_period(pwm));
         if (ret < 0) {
                 clk_disable_unprepare(kp->clk);
                 return ret;
diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c
index 008dc646225e..d600fd5cd4ba 100644
--- a/drivers/pwm/pwm-imx.c
+++ b/drivers/pwm/pwm-imx.c
@@ -129,7 +129,8 @@ static int imx_pwm_config_v2(struct pwm_chip *chip,
                 sr = readl(imx->mmio_base + MX3_PWMSR);
                 fifoav = sr & MX3_PWMSR_FIFOAV_MASK;
                 if (fifoav == MX3_PWMSR_FIFOAV_4WORDS) {
-                        period_ms = DIV_ROUND_UP(pwm->period, NSEC_PER_MSEC);
+                        period_ms = DIV_ROUND_UP(pwm_get_period(pwm),
+                                                 NSEC_PER_MSEC);
                         msleep(period_ms);
 
                         sr = readl(imx->mmio_base + MX3_PWMSR);
diff --git a/drivers/pwm/pwm-rockchip.c b/drivers/pwm/pwm-rockchip.c
index 9442df244101..7d9cc9049522 100644
--- a/drivers/pwm/pwm-rockchip.c
+++ b/drivers/pwm/pwm-rockchip.c
@@ -83,7 +83,7 @@ static void rockchip_pwm_set_enable_v2(struct pwm_chip *chip,
                           PWM_CONTINUOUS;
         u32 val;
 
-        if (pwm->polarity == PWM_POLARITY_INVERSED)
+        if (pwm_get_polarity(pwm) == PWM_POLARITY_INVERSED)
                 enable_conf |= PWM_DUTY_NEGATIVE | PWM_INACTIVE_POSITIVE;
         else
                 enable_conf |= PWM_DUTY_POSITIVE | PWM_INACTIVE_NEGATIVE;
diff --git a/drivers/pwm/sysfs.c b/drivers/pwm/sysfs.c
index eecf21d68108..ac0abecfbaa0 100644
--- a/drivers/pwm/sysfs.c
+++ b/drivers/pwm/sysfs.c
@@ -46,7 +46,7 @@ static ssize_t pwm_period_show(struct device *child,
 {
         const struct pwm_device *pwm = child_to_pwm_device(child);
 
-        return sprintf(buf, "%u\n", pwm->period);
+        return sprintf(buf, "%u\n", pwm_get_period(pwm));
 }
 
 static ssize_t pwm_period_store(struct device *child,
@@ -61,7 +61,7 @@ static ssize_t pwm_period_store(struct device *child,
         if (ret)
                 return ret;
 
-        ret = pwm_config(pwm, pwm->duty_cycle, val);
+        ret = pwm_config(pwm, pwm_get_duty_cycle(pwm), val);
 
         return ret ? : size;
 }
@@ -72,7 +72,7 @@ static ssize_t pwm_duty_cycle_show(struct device *child,
 {
         const struct pwm_device *pwm = child_to_pwm_device(child);
 
-        return sprintf(buf, "%u\n", pwm->duty_cycle);
+        return sprintf(buf, "%u\n", pwm_get_duty_cycle(pwm));
 }
 
 static ssize_t pwm_duty_cycle_store(struct device *child,
@@ -87,7 +87,7 @@ static ssize_t pwm_duty_cycle_store(struct device *child,
         if (ret)
                 return ret;
 
-        ret = pwm_config(pwm, val, pwm->period);
+        ret = pwm_config(pwm, val, pwm_get_period(pwm));
 
         return ret ? : size;
 }
@@ -134,7 +134,8 @@ static ssize_t pwm_polarity_show(struct device *child,
 {
         const struct pwm_device *pwm = child_to_pwm_device(child);
 
-        return sprintf(buf, "%s\n", pwm->polarity ? "inversed" : "normal");
+        return sprintf(buf, "%s\n",
+                       pwm_get_polarity(pwm) ? "inversed" : "normal");
 }
 
 static ssize_t pwm_polarity_store(struct device *child,