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hwmon: (gpio-fan) Get rid of the gpio alarm struct

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There is no point in storing the GPIO alarm settings in their
own struct so merge this into the main state container.

Convert the variables from "unsigned" to "unsigned int" to
make checkpatch happy.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Linus Walleij 2017-09-26 01:09:09 +02:00 committed by Guenter Roeck
parent b5482f7e6c
commit c9933cb16f
1 changed files with 12 additions and 26 deletions
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38
drivers/hwmon/gpio-fan.c
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@ -35,11 +35,6 @@
#include <linux/of_gpio.h>
#include <linux/thermal.h>
struct gpio_fan_alarm {
unsigned int gpio;
unsigned int active_low;
};
struct gpio_fan_speed {
int rpm;
int ctrl_val;
@ -60,7 +55,8 @@ struct gpio_fan_data {
int resume_speed;
#endif
bool pwm_enable;
struct gpio_fan_alarm *alarm;
unsigned int alarm_gpio;
unsigned int alarm_gpio_active_low;
struct work_struct alarm_work;
};
@ -90,10 +86,9 @@ static ssize_t fan1_alarm_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct gpio_fan_data *fan_data = dev_get_drvdata(dev);
struct gpio_fan_alarm *alarm = fan_data->alarm;
int value = gpio_get_value_cansleep(alarm->gpio);
int value = gpio_get_value_cansleep(fan_data->alarm_gpio);
if (alarm->active_low)
if (fan_data->alarm_gpio_active_low)
value = !value;
return sprintf(buf, "%d\n", value);
@ -106,13 +101,12 @@ static int fan_alarm_init(struct gpio_fan_data *fan_data)
int err;
int alarm_irq;
struct device *dev = fan_data->dev;
struct gpio_fan_alarm *alarm = fan_data->alarm;
err = devm_gpio_request(dev, alarm->gpio, "GPIO fan alarm");
err = devm_gpio_request(dev, fan_data->alarm_gpio, "GPIO fan alarm");
if (err)
return err;
err = gpio_direction_input(alarm->gpio);
err = gpio_direction_input(fan_data->alarm_gpio);
if (err)
return err;
@ -120,7 +114,7 @@ static int fan_alarm_init(struct gpio_fan_data *fan_data)
* If the alarm GPIO don't support interrupts, just leave
* without initializing the fail notification support.
*/
alarm_irq = gpio_to_irq(alarm->gpio);
alarm_irq = gpio_to_irq(fan_data->alarm_gpio);
if (alarm_irq < 0)
return 0;
@ -335,7 +329,7 @@ static umode_t gpio_fan_is_visible(struct kobject *kobj,
struct device *dev = container_of(kobj, struct device, kobj);
struct gpio_fan_data *data = dev_get_drvdata(dev);
if (index == 0 && !data->alarm)
if (index == 0 && !data->alarm_gpio)
return 0;
if (index > 0 && !data->ctrl)
return 0;
@ -450,28 +444,20 @@ static int gpio_fan_get_of_data(struct gpio_fan_data *fan_data)
/* Alarm GPIO if one exists */
if (of_gpio_named_count(np, "alarm-gpios") > 0) {
struct gpio_fan_alarm *alarm;
int val;
enum of_gpio_flags flags;
alarm = devm_kzalloc(dev, sizeof(struct gpio_fan_alarm),
GFP_KERNEL);
if (!alarm)
return -ENOMEM;
val = of_get_named_gpio_flags(np, "alarm-gpios", 0, &flags);
if (val < 0)
return val;
alarm->gpio = val;
alarm->active_low = flags & OF_GPIO_ACTIVE_LOW;
fan_data->alarm = alarm;
fan_data->alarm_gpio = val;
fan_data->alarm_gpio_active_low = flags & OF_GPIO_ACTIVE_LOW;
}
/* Fill GPIO pin array */
fan_data->num_ctrl = of_gpio_count(np);
if (fan_data->num_ctrl <= 0) {
if (fan_data->alarm)
if (fan_data->alarm_gpio)
return 0;
dev_err(dev, "DT properties empty / missing");
return -ENODEV;
@ -556,7 +542,7 @@ static int gpio_fan_probe(struct platform_device *pdev)
mutex_init(&fan_data->lock);
/* Configure alarm GPIO if available. */
if (fan_data->alarm) {
if (fan_data->alarm_gpio) {
err = fan_alarm_init(fan_data);
if (err)
return err;