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path: root/drivers/power/reset/gpio-restart.c
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Diffstat (limited to 'drivers/power/reset/gpio-restart.c')
-rw-r--r--drivers/power/reset/gpio-restart.c34
1 files changed, 9 insertions, 25 deletions
diff --git a/drivers/power/reset/gpio-restart.c b/drivers/power/reset/gpio-restart.c
index 3aa1976577..d1e177176f 100644
--- a/drivers/power/reset/gpio-restart.c
+++ b/drivers/power/reset/gpio-restart.c
@@ -17,17 +17,14 @@
struct gpio_restart {
struct gpio_desc *reset_gpio;
- struct notifier_block restart_handler;
u32 active_delay_ms;
u32 inactive_delay_ms;
u32 wait_delay_ms;
};
-static int gpio_restart_notify(struct notifier_block *this,
- unsigned long mode, void *cmd)
+static int gpio_restart_notify(struct sys_off_data *data)
{
- struct gpio_restart *gpio_restart =
- container_of(this, struct gpio_restart, restart_handler);
+ struct gpio_restart *gpio_restart = data->cb_data;
/* drive it active, also inactive->active edge */
gpiod_direction_output(gpio_restart->reset_gpio, 1);
@@ -52,6 +49,7 @@ static int gpio_restart_probe(struct platform_device *pdev)
{
struct gpio_restart *gpio_restart;
bool open_source = false;
+ int priority = 129;
u32 property;
int ret;
@@ -71,8 +69,6 @@ static int gpio_restart_probe(struct platform_device *pdev)
return ret;
}
- gpio_restart->restart_handler.notifier_call = gpio_restart_notify;
- gpio_restart->restart_handler.priority = 129;
gpio_restart->active_delay_ms = 100;
gpio_restart->inactive_delay_ms = 100;
gpio_restart->wait_delay_ms = 3000;
@@ -83,7 +79,7 @@ static int gpio_restart_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "Invalid priority property: %u\n",
property);
else
- gpio_restart->restart_handler.priority = property;
+ priority = property;
}
of_property_read_u32(pdev->dev.of_node, "active-delay",
@@ -93,9 +89,11 @@ static int gpio_restart_probe(struct platform_device *pdev)
of_property_read_u32(pdev->dev.of_node, "wait-delay",
&gpio_restart->wait_delay_ms);
- platform_set_drvdata(pdev, gpio_restart);
-
- ret = register_restart_handler(&gpio_restart->restart_handler);
+ ret = devm_register_sys_off_handler(&pdev->dev,
+ SYS_OFF_MODE_RESTART,
+ priority,
+ gpio_restart_notify,
+ gpio_restart);
if (ret) {
dev_err(&pdev->dev, "%s: cannot register restart handler, %d\n",
__func__, ret);
@@ -105,19 +103,6 @@ static int gpio_restart_probe(struct platform_device *pdev)
return 0;
}
-static void gpio_restart_remove(struct platform_device *pdev)
-{
- struct gpio_restart *gpio_restart = platform_get_drvdata(pdev);
- int ret;
-
- ret = unregister_restart_handler(&gpio_restart->restart_handler);
- if (ret) {
- dev_err(&pdev->dev,
- "%s: cannot unregister restart handler, %d\n",
- __func__, ret);
- }
-}
-
static const struct of_device_id of_gpio_restart_match[] = {
{ .compatible = "gpio-restart", },
{},
@@ -125,7 +110,6 @@ static const struct of_device_id of_gpio_restart_match[] = {
static struct platform_driver gpio_restart_driver = {
.probe = gpio_restart_probe,
- .remove_new = gpio_restart_remove,
.driver = {
.name = "restart-gpio",
.of_match_table = of_gpio_restart_match,