arm: tegra: kai: Fill power rails details

Register PMU MAX77663 and provide detailed power rails information.

Change-Id: I28051b621b72c88519c57ba2485fa7cdb4e76c70

Signed-off-by: Johnny Qiu <joqiu@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: Icace4430f24c7e3ac62ed2ac359ace707cd11209
Reviewed-on: http://git-master/r/77298
Reviewed-by: Automatic_Commit_Validation_User

1 files changed, 471 insertions, 1 deletions

diff --git a/arch/arm/mach-tegra/board-kai-power.c b/arch/arm/mach-tegra/board-kai-power.c
index 43d7229100f0..6a65d0eb7b86 100644
--- a/arch/arm/mach-tegra/board-kai-power.c
+++ b/arch/arm/mach-tegra/board-kai-power.c
@@ -22,6 +22,8 @@
 #include <linux/platform_device.h>
 #include <linux/resource.h>
 #include <linux/regulator/machine.h>
+#include <linux/mfd/max77663-core.h>
+#include <linux/regulator/max77663-regulator.h>
 #include <linux/gpio.h>
 #include <linux/io.h>
 #include <linux/regulator/gpio-switch-regulator.h>
@@ -44,10 +46,470 @@
 #define PMC_CTRL		0x0
 #define PMC_CTRL_INTR_LOW	(1 << 17)
 
+static struct regulator_consumer_supply max77663_sd0_supply[] = {
+	REGULATOR_SUPPLY("vdd_cpu", NULL),
+};
+
+static struct regulator_consumer_supply max77663_sd1_supply[] = {
+	REGULATOR_SUPPLY("vdd_core", NULL),
+};
+
+static struct regulator_consumer_supply max77663_sd2_supply[] = {
+	REGULATOR_SUPPLY("vdd_gen1v8", NULL),
+	REGULATOR_SUPPLY("avdd_hdmi_pll", NULL),
+	REGULATOR_SUPPLY("avdd_usb_pll", NULL),
+	REGULATOR_SUPPLY("avdd_osc", NULL),
+	REGULATOR_SUPPLY("vddio_sys", NULL),
+	REGULATOR_SUPPLY("vddio_sdmmc", "sdhci-tegra.3"),
+	REGULATOR_SUPPLY("pwrdet_sdmmc4", NULL),
+	REGULATOR_SUPPLY("vddio_uart", NULL),
+	REGULATOR_SUPPLY("pwrdet_uart", NULL),
+	REGULATOR_SUPPLY("vddio_bb", NULL),
+	REGULATOR_SUPPLY("pwrdet_bb", NULL),
+	REGULATOR_SUPPLY("vddio_lcd_pmu", NULL),
+	REGULATOR_SUPPLY("pwrdet_lcd", NULL),
+	REGULATOR_SUPPLY("vddio_audio", NULL),
+	REGULATOR_SUPPLY("pwrdet_audio", NULL),
+	REGULATOR_SUPPLY("vddio_cam", NULL),
+	REGULATOR_SUPPLY("pwrdet_cam", NULL),
+	REGULATOR_SUPPLY("vddio_sdmmc", "sdhci-tegra.2"),
+	REGULATOR_SUPPLY("pwrdet_sdmmc3", NULL),
+	REGULATOR_SUPPLY("vddio_vi", NULL),
+	REGULATOR_SUPPLY("pwrdet_vi", NULL),
+	REGULATOR_SUPPLY("vcore_nand", NULL),
+	REGULATOR_SUPPLY("pwrdet_nand", NULL),
+};
+
+static struct regulator_consumer_supply max77663_sd3_supply[] = {
+	REGULATOR_SUPPLY("vdd_ddr3l_1v35", NULL),
+};
+
+static struct regulator_consumer_supply max77663_ldo0_supply[] = {
+	REGULATOR_SUPPLY("vdd_ddr_hs", NULL),
+};
+
+static struct regulator_consumer_supply max77663_ldo1_supply[] = {
+};
+
+static struct regulator_consumer_supply max77663_ldo2_supply[] = {
+	REGULATOR_SUPPLY("vdd_ddr_rx", NULL),
+};
+
+static struct regulator_consumer_supply max77663_ldo3_supply[] = {
+	REGULATOR_SUPPLY("vmmc", NULL),
+};
+
+static struct regulator_consumer_supply max77663_ldo4_supply[] = {
+	REGULATOR_SUPPLY("vdd_rtc", NULL),
+};
+
+static struct regulator_consumer_supply max77663_ldo5_supply[] = {
+	REGULATOR_SUPPLY("vdd_sensor_2v8", NULL),
+};
+
+static struct regulator_consumer_supply max77663_ldo6_supply[] = {
+	REGULATOR_SUPPLY("vddio_sdmmc", "sdhci-tegra.0"),
+	REGULATOR_SUPPLY("pwrdet_sdmmc1", NULL),
+};
+
+static struct regulator_consumer_supply max77663_ldo7_supply[] = {
+	REGULATOR_SUPPLY("avdd_dsi_csi", NULL),
+	REGULATOR_SUPPLY("pwrdet_mipi", NULL),
+};
+
+static struct regulator_consumer_supply max77663_ldo8_supply[] = {
+	REGULATOR_SUPPLY("avdd_plla_p_c_s", NULL),
+	REGULATOR_SUPPLY("avdd_pllm", NULL),
+	REGULATOR_SUPPLY("avdd_pllu_d", NULL),
+	REGULATOR_SUPPLY("avdd_pllu_d2", NULL),
+	REGULATOR_SUPPLY("avdd_pllx", NULL),
+};
+
+static struct max77663_regulator_fps_cfg max77663_fps_cfgs[] = {
+	{
+		.src = FPS_SRC_0,
+		.en_src = FPS_EN_SRC_EN0,
+		.time_period = FPS_TIME_PERIOD_DEF,
+	},
+	{
+		.src = FPS_SRC_1,
+		.en_src = FPS_EN_SRC_EN1,
+		.time_period = FPS_TIME_PERIOD_DEF,
+	},
+	{
+		.src = FPS_SRC_2,
+		.en_src = FPS_EN_SRC_EN0,
+		.time_period = FPS_TIME_PERIOD_DEF,
+	},
+};
+
+#define MAX77663_PDATA_INIT(_id, _min_uV, _max_uV, _supply_reg,		\
+			    _always_on, _boot_on, _apply_uV,		\
+			    _init_apply, _init_enable, _init_uV,	\
+			    _fps_src, _fps_pu_period, _fps_pd_period, _flags) \
+	static struct max77663_regulator_platform_data max77663_regulator_pdata_##_id = \
+	{								\
+		.init_data = {						\
+			.constraints = {				\
+				.min_uV = _min_uV,			\
+				.max_uV = _max_uV,			\
+				.valid_modes_mask = (REGULATOR_MODE_NORMAL |  \
+						     REGULATOR_MODE_STANDBY), \
+				.valid_ops_mask = (REGULATOR_CHANGE_MODE |    \
+						   REGULATOR_CHANGE_STATUS |  \
+						   REGULATOR_CHANGE_VOLTAGE), \
+				.always_on = _always_on,		\
+				.boot_on = _boot_on,			\
+				.apply_uV = _apply_uV,			\
+			},						\
+			.num_consumer_supplies =			\
+				ARRAY_SIZE(max77663_##_id##_supply),	\
+			.consumer_supplies = max77663_##_id##_supply,	\
+			.supply_regulator = _supply_reg,		\
+		},							\
+		.init_apply = _init_apply,				\
+		.init_enable = _init_enable,				\
+		.init_uV = _init_uV,					\
+		.fps_src = _fps_src,					\
+		.fps_pu_period = _fps_pu_period,			\
+		.fps_pd_period = _fps_pd_period,			\
+		.fps_cfgs = max77663_fps_cfgs,				\
+		.flags = _flags,					\
+	}
+
+MAX77663_PDATA_INIT(sd0,  600000, 3387500, NULL, 1, 0, 0,
+		    0, 0, -1, FPS_SRC_NONE, -1, -1, EN2_CTRL_SD0 | SD_FSRADE_DISABLE);
+
+MAX77663_PDATA_INIT(sd1,  800000, 1587500, NULL, 1, 0, 0,
+		    1, 1, -1, FPS_SRC_1, -1, -1, SD_FSRADE_DISABLE);
+
+MAX77663_PDATA_INIT(sd2,  600000, 3387500, NULL, 1, 0, 0,
+		    1, 1, -1, FPS_SRC_NONE, -1, -1, 0);
+
+MAX77663_PDATA_INIT(sd3,  600000, 3387500, NULL, 1, 0, 0,
+		    1, 1, -1, FPS_SRC_NONE, -1, -1, 0);
+
+MAX77663_PDATA_INIT(ldo0, 800000, 2350000, max77663_rails(sd3), 1, 0, 0,
+		    1, 1, -1, FPS_SRC_1, -1, -1, 0);
+
+MAX77663_PDATA_INIT(ldo1, 800000, 2350000, max77663_rails(sd3), 0, 0, 0,
+		    0, 0, -1, FPS_SRC_NONE, -1, -1, 0);
+
+MAX77663_PDATA_INIT(ldo2, 800000, 3950000, NULL, 1, 0, 0,
+		    1, 1, -1, FPS_SRC_1, -1, -1, 0);
+
+MAX77663_PDATA_INIT(ldo3, 800000, 3950000, NULL, 1, 0, 0,
+		    1, 1, -1, FPS_SRC_NONE, -1, -1, 0);
+
+MAX77663_PDATA_INIT(ldo4, 800000, 1587500, NULL, 0, 0, 0,
+		    1, 1, -1, FPS_SRC_NONE, -1, -1, 0);
+
+MAX77663_PDATA_INIT(ldo5, 800000, 2800000, NULL, 0, 0, 0,
+		    1, 1, -1, FPS_SRC_NONE, -1, -1, 0);
+
+MAX77663_PDATA_INIT(ldo6, 800000, 3950000, NULL, 0, 0, 0,
+		    0, 0, -1, FPS_SRC_NONE, -1, -1, 0);
+
+MAX77663_PDATA_INIT(ldo7, 800000, 3950000, max77663_rails(sd3), 0, 0, 0,
+		    0, 0, -1, FPS_SRC_NONE, -1, -1, 0);
+
+MAX77663_PDATA_INIT(ldo8, 800000, 3950000, max77663_rails(sd3), 0, 0, 0,
+		    1, 1, -1, FPS_SRC_1, -1, -1, 0);
+
+#define MAX77663_REG(_id, _data)					\
+	{								\
+		.name = "max77663-regulator",				\
+		.id = MAX77663_REGULATOR_ID_##_id,			\
+		.platform_data = &max77663_regulator_pdata_##_data,		\
+	}
+
+#define MAX77663_RTC()							\
+	{								\
+		.name = "max77663-rtc",					\
+		.id = 0,						\
+	}
+
+static struct mfd_cell max77663_subdevs[] = {
+	MAX77663_REG(SD0, sd0),
+	MAX77663_REG(SD1, sd1),
+	MAX77663_REG(SD2, sd2),
+	MAX77663_REG(SD3, sd3),
+	MAX77663_REG(LDO0, ldo0),
+	MAX77663_REG(LDO1, ldo1),
+	MAX77663_REG(LDO2, ldo2),
+	MAX77663_REG(LDO3, ldo3),
+	MAX77663_REG(LDO4, ldo4),
+	MAX77663_REG(LDO5, ldo5),
+	MAX77663_REG(LDO6, ldo6),
+	MAX77663_REG(LDO7, ldo7),
+	MAX77663_REG(LDO8, ldo8),
+	MAX77663_RTC(),
+};
+
+static struct max77663_gpio_config max77663_gpio_cfgs[] = {
+	{
+		.gpio = MAX77663_GPIO0,
+		.dir = GPIO_DIR_OUT,
+		.dout = GPIO_DOUT_LOW,
+		.out_drv = GPIO_OUT_DRV_PUSH_PULL,
+		.alternate = GPIO_ALT_DISABLE,
+	},
+	{
+		.gpio = MAX77663_GPIO1,
+		.dir = GPIO_DIR_OUT,
+		.dout = GPIO_DOUT_LOW,
+		.out_drv = GPIO_OUT_DRV_PUSH_PULL,
+		.alternate = GPIO_ALT_DISABLE,
+	},
+	{
+		.gpio = MAX77663_GPIO2,
+		.dir = GPIO_DIR_OUT,
+		.dout = GPIO_DOUT_HIGH,
+		.out_drv = GPIO_OUT_DRV_OPEN_DRAIN,
+		.alternate = GPIO_ALT_DISABLE,
+	},
+	{
+		.gpio = MAX77663_GPIO3,
+		.dir = GPIO_DIR_OUT,
+		.dout = GPIO_DOUT_HIGH,
+		.out_drv = GPIO_OUT_DRV_OPEN_DRAIN,
+		.alternate = GPIO_ALT_DISABLE,
+	},
+	{
+		.gpio = MAX77663_GPIO4,
+		.dir = GPIO_DIR_OUT,
+		.dout = GPIO_DOUT_HIGH,
+		.out_drv = GPIO_OUT_DRV_OPEN_DRAIN,
+		.alternate = GPIO_ALT_ENABLE,
+	},
+	{
+		.gpio = MAX77663_GPIO5,
+		.dir = GPIO_DIR_OUT,
+		.dout = GPIO_DOUT_LOW,
+		.out_drv = GPIO_OUT_DRV_PUSH_PULL,
+		.alternate = GPIO_ALT_DISABLE,
+	},
+	{
+		.gpio = MAX77663_GPIO6,
+		.dir = GPIO_DIR_IN,
+		.alternate = GPIO_ALT_DISABLE,
+	},
+	{
+		.gpio = MAX77663_GPIO7,
+		.dir = GPIO_DIR_OUT,
+		.dout = GPIO_DOUT_LOW,
+		.out_drv = GPIO_OUT_DRV_PUSH_PULL,
+		.alternate = GPIO_ALT_DISABLE,
+	},
+};
+
+static struct max77663_platform_data max7763_pdata = {
+	.irq_base	= MAX77663_IRQ_BASE,
+	.gpio_base	= MAX77663_GPIO_BASE,
+
+	.num_gpio_cfgs	= ARRAY_SIZE(max77663_gpio_cfgs),
+	.gpio_cfgs	= max77663_gpio_cfgs,
+
+	.num_subdevs	= ARRAY_SIZE(max77663_subdevs),
+	.sub_devices	= max77663_subdevs,
+};
+
+static struct i2c_board_info __initdata max77663_regulators[] = {
+	{
+		/* The I2C address was determined by OTP factory setting */
+		I2C_BOARD_INFO("max77663", 0x3c),
+		.irq		= INT_EXTERNAL_PMU,
+		.platform_data	= &max7763_pdata,
+	},
+};
+
+static int __init kai_max77663_regulator_init(void)
+{
+	void __iomem *pmc = IO_ADDRESS(TEGRA_PMC_BASE);
+	u32 pmc_ctrl;
+
+	/* configure the power management controller to trigger PMU
+	 * interrupts when low */
+	pmc_ctrl = readl(pmc + PMC_CTRL);
+	writel(pmc_ctrl | PMC_CTRL_INTR_LOW, pmc + PMC_CTRL);
+
+	i2c_register_board_info(4, max77663_regulators,
+				ARRAY_SIZE(max77663_regulators));
+
+	return 0;
+}
+
+static struct regulator_consumer_supply gpio_switch_en_3v3_sys_supply[] = {
+	REGULATOR_SUPPLY("vdd_3v3", NULL),
+	REGULATOR_SUPPLY("vdd_3v3_devices", NULL),
+	REGULATOR_SUPPLY("debug_cons", NULL),
+	REGULATOR_SUPPLY("pwrdet_pex_ctl", NULL),
+};
+static int gpio_switch_en_3v3_sys_voltages[] = { 3300};
+
+static struct regulator_consumer_supply gpio_switch_en_avdd_hdmi_usb_supply[] = {
+	REGULATOR_SUPPLY("avdd_hdmi", NULL),
+	REGULATOR_SUPPLY("avdd_usb", NULL),
+	REGULATOR_SUPPLY("vddio_gmi", NULL),
+};
+static int gpio_switch_en_avdd_hdmi_usb_voltages[] = { 3300};
+
+static struct regulator_consumer_supply gpio_switch_en_1v8_cam_supply[] = {
+	REGULATOR_SUPPLY("vdd_1v8_cam1", NULL),
+	REGULATOR_SUPPLY("vdd_1v8_cam2", NULL),
+	REGULATOR_SUPPLY("vdd_1v8_cam3", NULL),
+};
+static int gpio_switch_en_1v8_cam_voltages[] = { 1800};
+
+static struct regulator_consumer_supply gpio_switch_en_vddio_vid_supply[] = {
+	REGULATOR_SUPPLY("vdd_hdmi_con", NULL),
+};
+static int gpio_switch_en_vddio_vid_voltages[] = { 5000};
+
+static struct regulator_consumer_supply gpio_switch_en_3v3_modem_supply[] = {
+	REGULATOR_SUPPLY("vdd_mini_card", NULL),
+};
+static int gpio_switch_en_3v3_modem_voltages[] = { 3300};
+
+static struct regulator_consumer_supply gpio_switch_en_vdd_pnl_supply[] = {
+	REGULATOR_SUPPLY("vdd_lvds", NULL),
+	REGULATOR_SUPPLY("vdd_lcd_panel", NULL),
+	REGULATOR_SUPPLY("vdd_touch", NULL),
+	REGULATOR_SUPPLY("vddio_ts", NULL),
+};
+static int gpio_switch_en_vdd_pnl_voltages[] = { 3300};
+
+static struct regulator_consumer_supply gpio_switch_en_cam3_ldo_supply[] = {
+	REGULATOR_SUPPLY("vdd_cam3", NULL),
+};
+static int gpio_switch_en_cam3_ldo_voltages[] = { 3300};
+
+static struct regulator_consumer_supply gpio_switch_en_vdd_com_supply[] = {
+	REGULATOR_SUPPLY("vdd_com_bd", NULL),
+};
+static int gpio_switch_en_vdd_com_voltages[] = { 3300};
+
+static struct regulator_consumer_supply gpio_switch_en_vdd_sdmmc1_supply[] = {
+	REGULATOR_SUPPLY("vddio_sd_slot", "sdhci-tegra.0"),
+};
+static int gpio_switch_en_vdd_sdmmc1_voltages[] = { 3300};
+
+static struct regulator_consumer_supply gpio_switch_en_3v3_fuse_supply[] = {
+	REGULATOR_SUPPLY("vpp_fuse", NULL),
+};
+static int gpio_switch_en_3v3_fuse_voltages[] = { 3300};
+
+static struct regulator_consumer_supply gpio_switch_cdc_en_supply[] = {
+	REGULATOR_SUPPLY("cdc_en", NULL),
+};
+static int gpio_switch_cdc_en_voltages[] = { 1200};
+
+/* Macro for defining gpio switch regulator sub device data */
+#define GREG_INIT(_id, _var, _name, _input_supply, _always_on, _boot_on, \
+	_gpio_nr, _active_low, _init_state, _pg, _enable, _disable)	 \
+	static struct gpio_switch_regulator_subdev_data gpio_pdata_##_var =  \
+	{								\
+		.regulator_name	= "gpio-switch-"#_name,			\
+		.input_supply	= _input_supply,			\
+		.id		= _id,					\
+		.gpio_nr	= _gpio_nr,				\
+		.pin_group	= _pg,					\
+		.active_low	= _active_low,				\
+		.init_state	= _init_state,				\
+		.voltages	= gpio_switch_##_name##_voltages,	\
+		.n_voltages	= ARRAY_SIZE(gpio_switch_##_name##_voltages), \
+		.num_consumer_supplies =				\
+				ARRAY_SIZE(gpio_switch_##_name##_supply), \
+		.consumer_supplies = gpio_switch_##_name##_supply,	\
+		.constraints = {					\
+			.valid_modes_mask = (REGULATOR_MODE_NORMAL |	\
+					     REGULATOR_MODE_STANDBY),	\
+			.valid_ops_mask = (REGULATOR_CHANGE_MODE |	\
+					   REGULATOR_CHANGE_STATUS |	\
+					   REGULATOR_CHANGE_VOLTAGE),	\
+			.always_on = _always_on,			\
+			.boot_on = _boot_on,				\
+		},							\
+		.enable_rail = _enable,					\
+		.disable_rail = _disable,				\
+	}
+
+GREG_INIT(1, en_3v3_sys,	en_3v3_sys,		NULL,
+	1,	0,	MAX77663_GPIO_BASE + MAX77663_GPIO3,	false,	1,	0,	0,	0);
+GREG_INIT(2, en_avdd_hdmi_usb,	en_avdd_hdmi_usb,	"vdd_3v3_devices",
+	1,	0,	MAX77663_GPIO_BASE + MAX77663_GPIO2,	false,	1,	0,	0,	0);
+GREG_INIT(3, en_1v8_cam,	en_1v8_cam,		"vdd_gen1v8",
+	0,	0,	TEGRA_GPIO_PS0,				false,	0,	0,	0,	0);
+GREG_INIT(4, en_vddio_vid_oc,	en_vddio_vid,		NULL,
+	0,	0,	TEGRA_GPIO_PB2,				false,	0,	0,	0,	0);
+GREG_INIT(5, en_3v3_modem,	en_3v3_modem,		NULL,
+	0,	0,	TEGRA_GPIO_PP0,				false,	0,	0,	0,	0);
+GREG_INIT(6, en_vdd_pnl,	en_vdd_pnl,		"vdd_3v3_devices",
+	0,	0,	TEGRA_GPIO_PW1,				false,	0,	0,	0,	0);
+GREG_INIT(7, en_cam3_ldo,	en_cam3_ldo,		"vdd_3v3_devices",
+	0,	0,	TEGRA_GPIO_PR7,				false,	0,	0,	0,	0);
+GREG_INIT(8, en_vdd_com,	en_vdd_com,		"vdd_3v3_devices",
+	0,	0,	TEGRA_GPIO_PD0,				false,	0,	0,	0,	0);
+GREG_INIT(9,  en_vdd_sdmmc1,	en_vdd_sdmmc1,		"vdd_3v3_devices",
+	0,	0,	TEGRA_GPIO_PC6,				false,	0,	0,	0,	0);
+GREG_INIT(10, en_3v3_fuse,	en_3v3_fuse,		"vdd_3v3_devices",
+	0,	0,	TEGRA_GPIO_PC1,				false,	0,	0,	0,	0);
+GREG_INIT(11, cdc_en,		cdc_en,			"vddio_audio",
+	0,	1,	TEGRA_GPIO_PX2,				false,	0,	0,	0,	0);
+
+
+#define ADD_GPIO_REG(_name) &gpio_pdata_##_name
+
+#define E1565_GPIO_REG \
+	ADD_GPIO_REG(en_3v3_sys),		\
+	ADD_GPIO_REG(en_avdd_hdmi_usb),		\
+	ADD_GPIO_REG(en_1v8_cam),		\
+	ADD_GPIO_REG(en_vddio_vid_oc),		\
+	ADD_GPIO_REG(en_3v3_modem),		\
+	ADD_GPIO_REG(en_vdd_pnl),		\
+	ADD_GPIO_REG(en_cam3_ldo),		\
+	ADD_GPIO_REG(en_vdd_com),		\
+	ADD_GPIO_REG(en_vdd_sdmmc1),		\
+	ADD_GPIO_REG(en_3v3_fuse),		\
+	ADD_GPIO_REG(cdc_en),			\
+
+
+static struct gpio_switch_regulator_subdev_data *gswitch_subdevs[] = {
+	E1565_GPIO_REG
+};
+
+static struct gpio_switch_regulator_platform_data gswitch_pdata = {
+	.subdevs = gswitch_subdevs,
+	.num_subdevs = ARRAY_SIZE(gswitch_subdevs),
+};
+
+static struct platform_device gswitch_regulator_pdata = {
+	.name = "gpio-switch-regulator",
+	.id   = -1,
+	.dev  = {
+	     .platform_data = &gswitch_pdata,
+	},
+};
+
+static int __init kai_max77663_gpio_switch_regulator_init(void)
+{
+	int i;
+
+	for (i = 0; i < gswitch_pdata.num_subdevs; ++i) {
+		struct gpio_switch_regulator_subdev_data *gswitch_data =
+						gswitch_pdata.subdevs[i];
+		if (gswitch_data->gpio_nr <= TEGRA_NR_GPIOS)
+			tegra_gpio_enable(gswitch_data->gpio_nr);
+	}
+
+	return platform_device_register(&gswitch_regulator_pdata);
+}
+
 int __init kai_regulator_init(void)
 {
 	void __iomem *pmc = IO_ADDRESS(TEGRA_PMC_BASE);
 	u32 pmc_ctrl;
+	int ret;
 
 	/* configure the power management controller to trigger PMU
 	 * interrupts when low */
@@ -55,7 +517,11 @@ int __init kai_regulator_init(void)
 	pmc_ctrl = readl(pmc + PMC_CTRL);
 	writel(pmc_ctrl | PMC_CTRL_INTR_LOW, pmc + PMC_CTRL);
 
-	return 0;
+	ret = kai_max77663_regulator_init();
+	if (ret < 0)
+		return ret;
+
+	return kai_max77663_gpio_switch_regulator_init();
 }
 
 static void kai_board_suspend(int lp_state, enum suspend_stage stg)
@@ -91,7 +557,11 @@ int __init kai_suspend_init(void)
 
 static void kai_power_off(void)
 {
+	int ret;
 	pr_err("kai: Powering off the device\n");
+	ret = max77663_power_off();
+	if (ret)
+		pr_err("kai: failed to power off\n");
 
 	while (1)
 		;