52 static int rk618_power_on(struct rk618 *rk618)  in rk618_power_on()  argument
57 	ret = regulator_enable(rk618->supply);  in rk618_power_on()
59 		dev_err(rk618->dev, "failed to enable supply: %d\n", ret);  in rk618_power_on()
63 	if (rk618->enable_gpio)  in rk618_power_on()
64 		gpiod_direction_output(rk618->enable_gpio, 1);  in rk618_power_on()
68 	ret = regmap_read(rk618->regmap, 0x0000, &reg);  in rk618_power_on()
70 		gpiod_direction_output(rk618->reset_gpio, 0);  in rk618_power_on()
72 		gpiod_direction_output(rk618->reset_gpio, 1);  in rk618_power_on()
74 		gpiod_direction_output(rk618->reset_gpio, 0);  in rk618_power_on()
80 static void rk618_power_off(struct rk618 *rk618)  in rk618_power_off()  argument
82 	gpiod_direction_output(rk618->reset_gpio, 1);  in rk618_power_off()
84 	if (rk618->enable_gpio)  in rk618_power_off()
85 		gpiod_direction_output(rk618->enable_gpio, 0);  in rk618_power_off()
87 	regulator_disable(rk618->supply);  in rk618_power_off()
104 	struct rk618 *rk618;  in rk618_probe()  local
107 	rk618 = devm_kzalloc(dev, sizeof(*rk618), GFP_KERNEL);  in rk618_probe()
108 	if (!rk618)  in rk618_probe()
111 	rk618->dev = dev;  in rk618_probe()
112 	rk618->client = client;  in rk618_probe()
113 	i2c_set_clientdata(client, rk618);  in rk618_probe()
115 	rk618->supply = devm_regulator_get(dev, "power");  in rk618_probe()
116 	if (IS_ERR(rk618->supply))  in rk618_probe()
117 		return PTR_ERR(rk618->supply);  in rk618_probe()
119 	rk618->enable_gpio = devm_gpiod_get_optional(dev, "enable", 0);  in rk618_probe()
120 	if (IS_ERR(rk618->enable_gpio)) {  in rk618_probe()
121 		ret = PTR_ERR(rk618->enable_gpio);  in rk618_probe()
126 	rk618->reset_gpio = devm_gpiod_get(dev, "reset", 0);  in rk618_probe()
127 	if (IS_ERR(rk618->reset_gpio)) {  in rk618_probe()
128 		ret = PTR_ERR(rk618->reset_gpio);  in rk618_probe()
133 	rk618->clkin = devm_clk_get(dev, "clkin");  in rk618_probe()
134 	if (IS_ERR(rk618->clkin)) {  in rk618_probe()
136 		return PTR_ERR(rk618->clkin);  in rk618_probe()
139 	ret = clk_prepare_enable(rk618->clkin);  in rk618_probe()
145 	rk618->regmap = devm_regmap_init_i2c(client, &rk618_regmap_config);  in rk618_probe()
146 	if (IS_ERR(rk618->regmap)) {  in rk618_probe()
147 		ret = PTR_ERR(rk618->regmap);  in rk618_probe()
152 	ret = rk618_power_on(rk618);  in rk618_probe()
166 	clk_disable_unprepare(rk618->clkin);  in rk618_probe()
172 	struct rk618 *rk618 = i2c_get_clientdata(client);  in rk618_remove()  local
174 	mfd_remove_devices(rk618->dev);  in rk618_remove()
175 	rk618_power_off(rk618);  in rk618_remove()
176 	clk_disable_unprepare(rk618->clkin);  in rk618_remove()
183 	struct rk618 *rk618 = i2c_get_clientdata(client);  in rk618_shutdown()  local
185 	rk618_power_off(rk618);  in rk618_shutdown()
186 	clk_disable_unprepare(rk618->clkin);  in rk618_shutdown()