diff options
Diffstat (limited to 'drivers/platform/cznic/turris-omnia-mcu.h')
| -rw-r--r-- | drivers/platform/cznic/turris-omnia-mcu.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/platform/cznic/turris-omnia-mcu.h b/drivers/platform/cznic/turris-omnia-mcu.h index 2a1c68ba9b7f..dc59f415f611 100644 --- a/drivers/platform/cznic/turris-omnia-mcu.h +++ b/drivers/platform/cznic/turris-omnia-mcu.h @@ -13,6 +13,7 @@ #include <linux/if_ether.h> #include <linux/mutex.h> #include <linux/types.h> +#include <linux/watchdog.h> #include <linux/workqueue.h> #include <asm/byteorder.h> #include <asm/unaligned.h> @@ -43,6 +44,9 @@ struct omnia_mcu { struct rtc_device *rtcdev; u32 rtc_alarm; bool front_button_poweron; + + /* MCU watchdog */ + struct watchdog_device wdt; }; int omnia_cmd_write_read(const struct i2c_client *client, @@ -55,6 +59,25 @@ static inline int omnia_cmd_write(const struct i2c_client *client, void *cmd, return omnia_cmd_write_read(client, cmd, len, NULL, 0); } +static inline int omnia_cmd_write_u8(const struct i2c_client *client, u8 cmd, + u8 val) +{ + u8 buf[2] = { cmd, val }; + + return omnia_cmd_write(client, buf, sizeof(buf)); +} + +static inline int omnia_cmd_write_u16(const struct i2c_client *client, u8 cmd, + u16 val) +{ + u8 buf[3]; + + buf[0] = cmd; + put_unaligned_le16(val, &buf[1]); + + return omnia_cmd_write(client, buf, sizeof(buf)); +} + static inline int omnia_cmd_write_u32(const struct i2c_client *client, u8 cmd, u32 val) { @@ -158,5 +181,6 @@ extern const struct attribute_group omnia_mcu_poweroff_group; int omnia_mcu_register_gpiochip(struct omnia_mcu *mcu); int omnia_mcu_register_sys_off_and_wakeup(struct omnia_mcu *mcu); +int omnia_mcu_register_watchdog(struct omnia_mcu *mcu); #endif /* __TURRIS_OMNIA_MCU_H */ |