[PATCH v4 04/24] hwmon: pwm-fan: use pwm_get_xxx() helpers where appropriate

Boris Brezillon
2015-11-16T08:56:27Z

Use pwm_get_xxx() helpers instead of directly accessing the pwm->xxx field.
Doing that will ease adaptation of the PWM framework to support atomic
update.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---
Patch generated with the following coccinelle script:

--->8---
virtual patch

@@
struct pwm_device *p;
expression e;
@@
(
-(p)->polarity = e;
+pwm_set_polarity((p), e);
|
-(p)->polarity
+pwm_get_polarity((p))
|
-(p)->period = e;
+pwm_set_period((p), e);
|
-(p)->period
+pwm_get_period((p))
|
-(p)->duty_cycle = e;
+pwm_set_duty_cycle((p), e);
|
-(p)->duty_cycle
+pwm_get_duty_cycle((p))
)
--->8---
---
drivers/hwmon/pwm-fan.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/hwmon/pwm-fan.c b/drivers/hwmon/pwm-fan.c
index 3e23003..105b964 100644
--- a/drivers/hwmon/pwm-fan.c
+++ b/drivers/hwmon/pwm-fan.c
@@ -47,8 +47,8 @@ static int __set_pwm(struct pwm_fan_ctx *ctx, unsigned long pwm)
if (ctx->pwm_value == pwm)
goto exit_set_pwm_err;

- duty = DIV_ROUND_UP(pwm * (ctx->pwm->period - 1), MAX_PWM);
- ret = pwm_config(ctx->pwm, duty, ctx->pwm->period);
+ duty = DIV_ROUND_UP(pwm * (pwm_get_period((ctx->pwm)) - 1), MAX_PWM);
+ ret = pwm_config(ctx->pwm, duty, pwm_get_period((ctx->pwm)));
if (ret)
goto exit_set_pwm_err;

@@ -234,10 +234,10 @@ static int pwm_fan_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, ctx);

/* Set duty cycle to maximum allowed */
- duty_cycle = ctx->pwm->period - 1;
+ duty_cycle = pwm_get_period((ctx->pwm)) - 1;
ctx->pwm_value = MAX_PWM;

- ret = pwm_config(ctx->pwm, duty_cycle, ctx->pwm->period);
+ ret = pwm_config(ctx->pwm, duty_cycle, pwm_get_period((ctx->pwm)));
if (ret) {
dev_err(&pdev->dev, "Failed to configure PWM\n");
return ret;
@@ -309,8 +309,9 @@ static int pwm_fan_resume(struct device *dev)
if (ctx->pwm_value == 0)
return 0;

- duty = DIV_ROUND_UP(ctx->pwm_value * (ctx->pwm->period - 1), MAX_PWM);
- ret = pwm_config(ctx->pwm, duty, ctx->pwm->period);
+ duty = DIV_ROUND_UP(ctx->pwm_value * (pwm_get_period((ctx->pwm)) - 1),
+ MAX_PWM);
+ ret = pwm_config(ctx->pwm, duty, pwm_get_period((ctx->pwm)));
if (ret)
return ret;
return pwm_enable(ctx->pwm);
--
2.1.4