#include <linux/acpi.h>
#include <linux/bitops.h>
#include <linux/delay.h>
-#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/jiffies.h>
struct nvmem_device *nvmem;
- struct gpio_desc *wp_gpio;
-
/*
* Some chips tie up multiple I2C addresses; dummy devices reserve
* them for us, and we'll use them with SMBus calls.
* from this host, but not from other I2C masters.
*/
mutex_lock(&at24->lock);
- gpiod_set_value_cansleep(at24->wp_gpio, 0);
while (count) {
ret = at24_regmap_write(at24, buf, off, count);
if (ret < 0) {
- gpiod_set_value_cansleep(at24->wp_gpio, 1);
mutex_unlock(&at24->lock);
pm_runtime_put(dev);
return ret;
count -= ret;
}
- gpiod_set_value_cansleep(at24->wp_gpio, 1);
mutex_unlock(&at24->lock);
pm_runtime_put(dev);
at24->client[0].client = client;
at24->client[0].regmap = regmap;
- at24->wp_gpio = devm_gpiod_get_optional(dev, "wp", GPIOD_OUT_HIGH);
- if (IS_ERR(at24->wp_gpio))
- return PTR_ERR(at24->wp_gpio);
writable = !(flags & AT24_FLAG_READONLY);
if (writable) {