Commit 8b238de5 authored by Oleg Dzhimiev's avatar Oleg Dzhimiev
Browse files

mutex for gpio_10389_control

parent 5b0dfc76

src/drivers/elphel/elphel393-pwr.c

+5 −3
Original line number Diff line number Diff line
@@ -63,6 +63,7 @@ 
#define REF_VAR_STEP_TENTH_MV  125

#define DEAFULT_TIMEOUT        300 /* number of retries testing pgood before giving up */



static DEFINE_MUTEX(gpio_10389_lock);



struct pwr_gpio_t {

	const char * label;
@@ -653,7 +654,7 @@ int gpio_10389_ctrl(struct device *dev, int value){ 
	int val = 0;

	//lock here

	//doesn't work

	//mutex_lock(&dev->mutex);

	mutex_lock(&gpio_10389_lock);

	for(i=16;i<20;i++){

		if ((value>>(i-8))&0x1){

			val = (value>>(i-16))&0x1;
@@ -665,12 +666,13 @@ int gpio_10389_ctrl(struct device *dev, int value){ 
	}

	//unlock somewhere here

	//doesn't work

	//mutex_unlock(&dev->mutex);

	mutex_unlock(&gpio_10389_lock);

	return 0;

}



int gpio_10389_control(int value){

	return gpio_10389_ctrl(shutdown_dev,value);

	gpio_10389_ctrl(shutdown_dev,value);

	return 0;

}

EXPORT_SYMBOL_GPL(gpio_10389_control);