38 struct mcu {  struct
45 static struct mcu *glob_mcu;  argument
51 	struct mcu *mcu = glob_mcu;  in shutdown_thread_fn()  local
54 		ret = i2c_smbus_read_byte_data(mcu->client, MCU_REG_CTRL);  in shutdown_thread_fn()
57 		mcu->reg_ctrl = ret;  in shutdown_thread_fn()
60 		if (mcu->reg_ctrl & MCU_CTRL_BTN) {  in shutdown_thread_fn()
61 			i2c_smbus_write_byte_data(mcu->client, MCU_REG_CTRL,  in shutdown_thread_fn()
62 						  mcu->reg_ctrl & ~MCU_CTRL_BTN);  in shutdown_thread_fn()
78 	struct mcu *mcu = glob_mcu;  in show_status()  local
80 	ret = i2c_smbus_read_byte_data(mcu->client, MCU_REG_CTRL);  in show_status()
83 	mcu->reg_ctrl = ret;  in show_status()
91 	struct mcu *mcu = glob_mcu;  in mcu_power_off()  local
94 	mutex_lock(&mcu->lock);  in mcu_power_off()
95 	i2c_smbus_write_byte_data(mcu->client, MCU_REG_CTRL,  in mcu_power_off()
96 				  mcu->reg_ctrl | MCU_CTRL_POFF);  in mcu_power_off()
97 	mutex_unlock(&mcu->lock);  in mcu_power_off()
102 	struct mcu *mcu = container_of(gc, struct mcu, gc);  in mcu_gpio_set()  local
105 	mutex_lock(&mcu->lock);  in mcu_gpio_set()
107 		mcu->reg_ctrl &= ~bit;  in mcu_gpio_set()
109 		mcu->reg_ctrl |= bit;  in mcu_gpio_set()
111 	i2c_smbus_write_byte_data(mcu->client, MCU_REG_CTRL, mcu->reg_ctrl);  in mcu_gpio_set()
112 	mutex_unlock(&mcu->lock);  in mcu_gpio_set()
121 static int mcu_gpiochip_add(struct mcu *mcu)  in mcu_gpiochip_add()  argument
124 	struct gpio_chip *gc = &mcu->gc;  in mcu_gpiochip_add()
142 static int mcu_gpiochip_remove(struct mcu *mcu)  in mcu_gpiochip_remove()  argument
144 	gpiochip_remove(&mcu->gc);  in mcu_gpiochip_remove()
150 	struct mcu *mcu;  in mcu_probe()  local
153 	mcu = kzalloc(sizeof(*mcu), GFP_KERNEL);  in mcu_probe()
154 	if (!mcu)  in mcu_probe()
157 	mutex_init(&mcu->lock);  in mcu_probe()
158 	mcu->client = client;  in mcu_probe()
159 	i2c_set_clientdata(client, mcu);  in mcu_probe()
161 	ret = i2c_smbus_read_byte_data(mcu->client, MCU_REG_CTRL);  in mcu_probe()
164 	mcu->reg_ctrl = ret;  in mcu_probe()
166 	ret = mcu_gpiochip_add(mcu);  in mcu_probe()
172 		glob_mcu = mcu;  in mcu_probe()
186 	kfree(mcu);  in mcu_probe()
192 	struct mcu *mcu = i2c_get_clientdata(client);  in mcu_remove()  local
199 	if (glob_mcu == mcu) {  in mcu_remove()
204 	ret = mcu_gpiochip_remove(mcu);  in mcu_remove()
207 	kfree(mcu);  in mcu_remove()