Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linuxgrafted

Pull I3C updates from Alexandre Belloni:
 "A new driver this cycle, for the AMD AXI I3C controller.

  There are also new features such as IBI wakeup support, SETAASA device
  discovery and ACPI support for the the DAA methods, meaning we can now
  communicate with the SPD devices on DDR5 modules.

  New driver:
   - AMD AXI I3C master controller

  Subsystem:
   - I3C Common Command Code (CCC) handling improvements, especially
     around GET CCCs
   - SETAASA device discovery support
   - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as
     well as I2C devices on I3C bus
   - IBI-based wakeup support

  Drivers:
   - dw: SETAASA support
   - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C
     controller support, PIO queue management support for HCI v1.2
   - renesas: improve suspend to RAM support, add runtime PM support"

* tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits)
  i3c: dw: reduce do_daa time if there's no client
  i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller
  i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2
  i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode
  i3c: dw: rename "pclk" to "apb" to match dt-binding
  i3c: dw: make struct dw_i3c_cmd smaller
  i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding
  i3c: renesas: Don't register devices when ENTDAA times out
  i3c: master: dw-i3c-master: fix OD timing for first broadcast
  i3c: mipi-i3c-hci: Advertise IBI wakeup capability
  i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev()
  i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI
  i3c: master: Reject IBI requests from non-IBI-capable devices
  i3c: master: Add helper to query bus wakeup requirements
  i3c: master: Report wakeup events for IBIs
  i3c: master: Support IBI-based wakeup capability
  i3c: master: Fix potential UAF in i3c_device_match()
  i3c: master: Fix potential UAF in i3c_device_uevent()
  i3c: Make dev->desc locking assumptions explicit
  i3c: master: Fix use-after-free of master->this
  ...

1 files changed, 855 insertions, 0 deletions

diff --git a/drivers/extcon/extcon-sm5502.c b/drivers/extcon/extcon-sm5502.c
new file mode 100644
index 000000000..c8c4b9ef7
--- /dev/null
+++ b/drivers/extcon/extcon-sm5502.c
@@ -0,0 +1,855 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * extcon-sm5502.c - Silicon Mitus SM5502 extcon drvier to support USB switches
+ *
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd
+ * Author: Chanwoo Choi <cw00.choi@samsung.com>
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/irqdomain.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/extcon-provider.h>
+
+#include "extcon-sm5502.h"
+
+#define	DELAY_MS_DEFAULT		17000	/* unit: millisecond */
+
+struct muic_irq {
+	unsigned int irq;
+	const char *name;
+	unsigned int virq;
+};
+
+struct reg_data {
+	u8 reg;
+	unsigned int val;
+	bool invert;
+};
+
+struct sm5502_muic_info {
+	struct device *dev;
+	struct extcon_dev *edev;
+
+	struct i2c_client *i2c;
+	struct regmap *regmap;
+
+	const struct sm5502_type *type;
+	struct regmap_irq_chip_data *irq_data;
+	int irq;
+	bool irq_attach;
+	bool irq_detach;
+	struct work_struct irq_work;
+
+	struct mutex mutex;
+
+	/*
+	 * Use delayed workqueue to detect cable state and then
+	 * notify cable state to notifiee/platform through uevent.
+	 * After completing the booting of platform, the extcon provider
+	 * driver should notify cable state to upper layer.
+	 */
+	struct delayed_work wq_detcable;
+};
+
+struct sm5502_type {
+	struct muic_irq *muic_irqs;
+	unsigned int num_muic_irqs;
+	const struct regmap_irq_chip *irq_chip;
+
+	struct reg_data *reg_data;
+	unsigned int num_reg_data;
+
+	unsigned int otg_dev_type1;
+	int (*parse_irq)(struct sm5502_muic_info *info, int irq_type);
+};
+
+/* Default value of SM5502 register to bring up MUIC device. */
+static struct reg_data sm5502_reg_data[] = {
+	{
+		.reg = SM5502_REG_RESET,
+		.val = SM5502_REG_RESET_MASK,
+		.invert = true,
+	}, {
+		.reg = SM5502_REG_CONTROL,
+		.val = SM5502_REG_CONTROL_MASK_INT_MASK,
+		.invert = false,
+	}, {
+		.reg = SM5502_REG_INTMASK1,
+		.val = SM5502_REG_INTM1_KP_MASK
+			| SM5502_REG_INTM1_LKP_MASK
+			| SM5502_REG_INTM1_LKR_MASK,
+		.invert = true,
+	}, {
+		.reg = SM5502_REG_INTMASK2,
+		.val = SM5502_REG_INTM2_VBUS_DET_MASK
+			| SM5502_REG_INTM2_REV_ACCE_MASK
+			| SM5502_REG_INTM2_ADC_CHG_MASK
+			| SM5502_REG_INTM2_STUCK_KEY_MASK
+			| SM5502_REG_INTM2_STUCK_KEY_RCV_MASK
+			| SM5502_REG_INTM2_MHL_MASK,
+		.invert = true,
+	},
+};
+
+/* Default value of SM5504 register to bring up MUIC device. */
+static struct reg_data sm5504_reg_data[] = {
+	{
+		.reg = SM5502_REG_RESET,
+		.val = SM5502_REG_RESET_MASK,
+		.invert = true,
+	}, {
+		.reg = SM5502_REG_INTMASK1,
+		.val = SM5504_REG_INTM1_ATTACH_MASK
+			| SM5504_REG_INTM1_DETACH_MASK,
+		.invert = false,
+	}, {
+		.reg = SM5502_REG_INTMASK2,
+		.val = SM5504_REG_INTM2_RID_CHG_MASK
+			| SM5504_REG_INTM2_UVLO_MASK
+			| SM5504_REG_INTM2_POR_MASK,
+		.invert = true,
+	}, {
+		.reg = SM5502_REG_CONTROL,
+		.val = SM5502_REG_CONTROL_MANUAL_SW_MASK
+			| SM5504_REG_CONTROL_CHGTYP_MASK
+			| SM5504_REG_CONTROL_USBCHDEN_MASK
+			| SM5504_REG_CONTROL_ADC_EN_MASK,
+		.invert = true,
+	},
+};
+
+/* List of detectable cables */
+static const unsigned int sm5502_extcon_cable[] = {
+	EXTCON_USB,
+	EXTCON_USB_HOST,
+	EXTCON_CHG_USB_SDP,
+	EXTCON_CHG_USB_DCP,
+	EXTCON_NONE,
+};
+
+/* Define supported accessory type */
+enum sm5502_muic_acc_type {
+	SM5502_MUIC_ADC_GROUND = 0x0,
+	SM5502_MUIC_ADC_SEND_END_BUTTON,
+	SM5502_MUIC_ADC_REMOTE_S1_BUTTON,
+	SM5502_MUIC_ADC_REMOTE_S2_BUTTON,
+	SM5502_MUIC_ADC_REMOTE_S3_BUTTON,
+	SM5502_MUIC_ADC_REMOTE_S4_BUTTON,
+	SM5502_MUIC_ADC_REMOTE_S5_BUTTON,
+	SM5502_MUIC_ADC_REMOTE_S6_BUTTON,
+	SM5502_MUIC_ADC_REMOTE_S7_BUTTON,
+	SM5502_MUIC_ADC_REMOTE_S8_BUTTON,
+	SM5502_MUIC_ADC_REMOTE_S9_BUTTON,
+	SM5502_MUIC_ADC_REMOTE_S10_BUTTON,
+	SM5502_MUIC_ADC_REMOTE_S11_BUTTON,
+	SM5502_MUIC_ADC_REMOTE_S12_BUTTON,
+	SM5502_MUIC_ADC_RESERVED_ACC_1,
+	SM5502_MUIC_ADC_RESERVED_ACC_2,
+	SM5502_MUIC_ADC_RESERVED_ACC_3,
+	SM5502_MUIC_ADC_RESERVED_ACC_4,
+	SM5502_MUIC_ADC_RESERVED_ACC_5,
+	SM5502_MUIC_ADC_AUDIO_TYPE2,
+	SM5502_MUIC_ADC_PHONE_POWERED_DEV,
+	SM5502_MUIC_ADC_TTY_CONVERTER,
+	SM5502_MUIC_ADC_UART_CABLE,
+	SM5502_MUIC_ADC_TYPE1_CHARGER,
+	SM5502_MUIC_ADC_FACTORY_MODE_BOOT_OFF_USB,
+	SM5502_MUIC_ADC_FACTORY_MODE_BOOT_ON_USB,
+	SM5502_MUIC_ADC_AUDIO_VIDEO_CABLE,
+	SM5502_MUIC_ADC_TYPE2_CHARGER,
+	SM5502_MUIC_ADC_FACTORY_MODE_BOOT_OFF_UART,
+	SM5502_MUIC_ADC_FACTORY_MODE_BOOT_ON_UART,
+	SM5502_MUIC_ADC_AUDIO_TYPE1,
+	SM5502_MUIC_ADC_OPEN = 0x1f,
+
+	/*
+	 * The below accessories have same ADC value (0x1f or 0x1e).
+	 * So, Device type1 is used to separate specific accessory.
+	 */
+							/* |---------|--ADC| */
+							/* |    [7:5]|[4:0]| */
+	SM5502_MUIC_ADC_AUDIO_TYPE1_FULL_REMOTE = 0x3e,	/* |      001|11110| */
+	SM5502_MUIC_ADC_AUDIO_TYPE1_SEND_END = 0x5e,	/* |      010|11110| */
+							/* |Dev Type1|--ADC| */
+	SM5502_MUIC_ADC_GROUND_USB_OTG = 0x80,		/* |      100|00000| */
+	SM5502_MUIC_ADC_OPEN_USB = 0x5f,		/* |      010|11111| */
+	SM5502_MUIC_ADC_OPEN_TA = 0xdf,			/* |      110|11111| */
+	SM5502_MUIC_ADC_OPEN_USB_OTG = 0xff,		/* |      111|11111| */
+};
+
+/* List of supported interrupt for SM5502 */
+static struct muic_irq sm5502_muic_irqs[] = {
+	{ SM5502_IRQ_INT1_ATTACH,	"muic-attach" },
+	{ SM5502_IRQ_INT1_DETACH,	"muic-detach" },
+	{ SM5502_IRQ_INT1_KP,		"muic-kp" },
+	{ SM5502_IRQ_INT1_LKP,		"muic-lkp" },
+	{ SM5502_IRQ_INT1_LKR,		"muic-lkr" },
+	{ SM5502_IRQ_INT1_OVP_EVENT,	"muic-ovp-event" },
+	{ SM5502_IRQ_INT1_OCP_EVENT,	"muic-ocp-event" },
+	{ SM5502_IRQ_INT1_OVP_OCP_DIS,	"muic-ovp-ocp-dis" },
+	{ SM5502_IRQ_INT2_VBUS_DET,	"muic-vbus-det" },
+	{ SM5502_IRQ_INT2_REV_ACCE,	"muic-rev-acce" },
+	{ SM5502_IRQ_INT2_ADC_CHG,	"muic-adc-chg" },
+	{ SM5502_IRQ_INT2_STUCK_KEY,	"muic-stuck-key" },
+	{ SM5502_IRQ_INT2_STUCK_KEY_RCV, "muic-stuck-key-rcv" },
+	{ SM5502_IRQ_INT2_MHL,		"muic-mhl" },
+};
+
+/* Define interrupt list of SM5502 to register regmap_irq */
+static const struct regmap_irq sm5502_irqs[] = {
+	/* INT1 interrupts */
+	{ .reg_offset = 0, .mask = SM5502_IRQ_INT1_ATTACH_MASK, },
+	{ .reg_offset = 0, .mask = SM5502_IRQ_INT1_DETACH_MASK, },
+	{ .reg_offset = 0, .mask = SM5502_IRQ_INT1_KP_MASK, },
+	{ .reg_offset = 0, .mask = SM5502_IRQ_INT1_LKP_MASK, },
+	{ .reg_offset = 0, .mask = SM5502_IRQ_INT1_LKR_MASK, },
+	{ .reg_offset = 0, .mask = SM5502_IRQ_INT1_OVP_EVENT_MASK, },
+	{ .reg_offset = 0, .mask = SM5502_IRQ_INT1_OCP_EVENT_MASK, },
+	{ .reg_offset = 0, .mask = SM5502_IRQ_INT1_OVP_OCP_DIS_MASK, },
+
+	/* INT2 interrupts */
+	{ .reg_offset = 1, .mask = SM5502_IRQ_INT2_VBUS_DET_MASK,},
+	{ .reg_offset = 1, .mask = SM5502_IRQ_INT2_REV_ACCE_MASK, },
+	{ .reg_offset = 1, .mask = SM5502_IRQ_INT2_ADC_CHG_MASK, },
+	{ .reg_offset = 1, .mask = SM5502_IRQ_INT2_STUCK_KEY_MASK, },
+	{ .reg_offset = 1, .mask = SM5502_IRQ_INT2_STUCK_KEY_RCV_MASK, },
+	{ .reg_offset = 1, .mask = SM5502_IRQ_INT2_MHL_MASK, },
+};
+
+static const struct regmap_irq_chip sm5502_muic_irq_chip = {
+	.name			= "sm5502",
+	.status_base		= SM5502_REG_INT1,
+	.mask_base		= SM5502_REG_INTMASK1,
+	.num_regs		= 2,
+	.irqs			= sm5502_irqs,
+	.num_irqs		= ARRAY_SIZE(sm5502_irqs),
+};
+
+/* List of supported interrupt for SM5504 */
+static struct muic_irq sm5504_muic_irqs[] = {
+	{ SM5504_IRQ_INT1_ATTACH,	"muic-attach" },
+	{ SM5504_IRQ_INT1_DETACH,	"muic-detach" },
+	{ SM5504_IRQ_INT1_CHG_DET,	"muic-chg-det" },
+	{ SM5504_IRQ_INT1_DCD_OUT,	"muic-dcd-out" },
+	{ SM5504_IRQ_INT1_OVP_EVENT,	"muic-ovp-event" },
+	{ SM5504_IRQ_INT1_CONNECT,	"muic-connect" },
+	{ SM5504_IRQ_INT1_ADC_CHG,	"muic-adc-chg" },
+	{ SM5504_IRQ_INT2_RID_CHG,	"muic-rid-chg" },
+	{ SM5504_IRQ_INT2_UVLO,		"muic-uvlo" },
+	{ SM5504_IRQ_INT2_POR,		"muic-por" },
+	{ SM5504_IRQ_INT2_OVP_FET,	"muic-ovp-fet" },
+	{ SM5504_IRQ_INT2_OCP_LATCH,	"muic-ocp-latch" },
+	{ SM5504_IRQ_INT2_OCP_EVENT,	"muic-ocp-event" },
+	{ SM5504_IRQ_INT2_OVP_OCP_EVENT, "muic-ovp-ocp-event" },
+};
+
+/* Define interrupt list of SM5504 to register regmap_irq */
+static const struct regmap_irq sm5504_irqs[] = {
+	/* INT1 interrupts */
+	{ .reg_offset = 0, .mask = SM5504_IRQ_INT1_ATTACH_MASK, },
+	{ .reg_offset = 0, .mask = SM5504_IRQ_INT1_DETACH_MASK, },
+	{ .reg_offset = 0, .mask = SM5504_IRQ_INT1_CHG_DET_MASK, },
+	{ .reg_offset = 0, .mask = SM5504_IRQ_INT1_DCD_OUT_MASK, },
+	{ .reg_offset = 0, .mask = SM5504_IRQ_INT1_OVP_MASK, },
+	{ .reg_offset = 0, .mask = SM5504_IRQ_INT1_CONNECT_MASK, },
+	{ .reg_offset = 0, .mask = SM5504_IRQ_INT1_ADC_CHG_MASK, },
+
+	/* INT2 interrupts */
+	{ .reg_offset = 1, .mask = SM5504_IRQ_INT2_RID_CHG_MASK,},
+	{ .reg_offset = 1, .mask = SM5504_IRQ_INT2_UVLO_MASK, },
+	{ .reg_offset = 1, .mask = SM5504_IRQ_INT2_POR_MASK, },
+	{ .reg_offset = 1, .mask = SM5504_IRQ_INT2_OVP_FET_MASK, },
+	{ .reg_offset = 1, .mask = SM5504_IRQ_INT2_OCP_LATCH_MASK, },
+	{ .reg_offset = 1, .mask = SM5504_IRQ_INT2_OCP_EVENT_MASK, },
+	{ .reg_offset = 1, .mask = SM5504_IRQ_INT2_OVP_OCP_EVENT_MASK, },
+};
+
+static const struct regmap_irq_chip sm5504_muic_irq_chip = {
+	.name			= "sm5504",
+	.status_base		= SM5502_REG_INT1,
+	.mask_base		= SM5502_REG_INTMASK1,
+	.num_regs		= 2,
+	.irqs			= sm5504_irqs,
+	.num_irqs		= ARRAY_SIZE(sm5504_irqs),
+};
+
+/* Define regmap configuration of SM5502 for I2C communication  */
+static bool sm5502_muic_volatile_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case SM5502_REG_INTMASK1:
+	case SM5502_REG_INTMASK2:
+		return true;
+	default:
+		break;
+	}
+	return false;
+}
+
+static const struct regmap_config sm5502_muic_regmap_config = {
+	.reg_bits	= 8,
+	.val_bits	= 8,
+	.volatile_reg	= sm5502_muic_volatile_reg,
+	.max_register	= SM5502_REG_END,
+};
+
+/* Change DM_CON/DP_CON/VBUSIN switch according to cable type */
+static int sm5502_muic_set_path(struct sm5502_muic_info *info,
+				unsigned int con_sw, unsigned int vbus_sw,
+				bool attached)
+{
+	int ret;
+
+	if (!attached) {
+		con_sw	= DM_DP_SWITCH_OPEN;
+		vbus_sw	= VBUSIN_SWITCH_OPEN;
+	}
+
+	switch (con_sw) {
+	case DM_DP_SWITCH_OPEN:
+	case DM_DP_SWITCH_USB:
+	case DM_DP_SWITCH_AUDIO:
+	case DM_DP_SWITCH_UART:
+		ret = regmap_update_bits(info->regmap, SM5502_REG_MANUAL_SW1,
+					 SM5502_REG_MANUAL_SW1_DP_MASK |
+					 SM5502_REG_MANUAL_SW1_DM_MASK,
+					 con_sw);
+		if (ret < 0) {
+			dev_err(info->dev,
+				"cannot update DM_CON/DP_CON switch\n");
+			return ret;
+		}
+		break;
+	default:
+		dev_err(info->dev, "Unknown DM_CON/DP_CON switch type (%d)\n",
+				con_sw);
+		return -EINVAL;
+	}
+
+	switch (vbus_sw) {
+	case VBUSIN_SWITCH_OPEN:
+	case VBUSIN_SWITCH_VBUSOUT:
+	case VBUSIN_SWITCH_MIC:
+	case VBUSIN_SWITCH_VBUSOUT_WITH_USB:
+		ret = regmap_update_bits(info->regmap, SM5502_REG_MANUAL_SW1,
+					 SM5502_REG_MANUAL_SW1_VBUSIN_MASK,
+					 vbus_sw);
+		if (ret < 0) {
+			dev_err(info->dev,
+				"cannot update VBUSIN switch\n");
+			return ret;
+		}
+		break;
+	default:
+		dev_err(info->dev, "Unknown VBUS switch type (%d)\n", vbus_sw);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/* Return cable type of attached or detached accessories */
+static unsigned int sm5502_muic_get_cable_type(struct sm5502_muic_info *info)
+{
+	unsigned int cable_type, adc, dev_type1;
+	int ret;
+
+	/* Read ADC value according to external cable or button */
+	ret = regmap_read(info->regmap, SM5502_REG_ADC, &adc);
+	if (ret) {
+		dev_err(info->dev, "failed to read ADC register\n");
+		return ret;
+	}
+
+	/*
+	 * If ADC is SM5502_MUIC_ADC_GROUND(0x0), external cable hasn't
+	 * connected with to MUIC device.
+	 */
+	cable_type = adc & SM5502_REG_ADC_MASK;
+
+	switch (cable_type) {
+	case SM5502_MUIC_ADC_GROUND:
+		ret = regmap_read(info->regmap, SM5502_REG_DEV_TYPE1,
+				  &dev_type1);
+		if (ret) {
+			dev_err(info->dev, "failed to read DEV_TYPE1 reg\n");
+			return ret;
+		}
+
+		if (dev_type1 == info->type->otg_dev_type1) {
+			cable_type = SM5502_MUIC_ADC_GROUND_USB_OTG;
+		} else {
+			dev_dbg(info->dev,
+				"cannot identify the cable type: adc(0x%x), dev_type1(0x%x)\n",
+				adc, dev_type1);
+			return -EINVAL;
+		}
+		break;
+	case SM5502_MUIC_ADC_SEND_END_BUTTON:
+	case SM5502_MUIC_ADC_REMOTE_S1_BUTTON:
+	case SM5502_MUIC_ADC_REMOTE_S2_BUTTON:
+	case SM5502_MUIC_ADC_REMOTE_S3_BUTTON:
+	case SM5502_MUIC_ADC_REMOTE_S4_BUTTON:
+	case SM5502_MUIC_ADC_REMOTE_S5_BUTTON:
+	case SM5502_MUIC_ADC_REMOTE_S6_BUTTON:
+	case SM5502_MUIC_ADC_REMOTE_S7_BUTTON:
+	case SM5502_MUIC_ADC_REMOTE_S8_BUTTON:
+	case SM5502_MUIC_ADC_REMOTE_S9_BUTTON:
+	case SM5502_MUIC_ADC_REMOTE_S10_BUTTON:
+	case SM5502_MUIC_ADC_REMOTE_S11_BUTTON:
+	case SM5502_MUIC_ADC_REMOTE_S12_BUTTON:
+	case SM5502_MUIC_ADC_RESERVED_ACC_1:
+	case SM5502_MUIC_ADC_RESERVED_ACC_2:
+	case SM5502_MUIC_ADC_RESERVED_ACC_3:
+	case SM5502_MUIC_ADC_RESERVED_ACC_4:
+	case SM5502_MUIC_ADC_RESERVED_ACC_5:
+	case SM5502_MUIC_ADC_AUDIO_TYPE2:
+	case SM5502_MUIC_ADC_PHONE_POWERED_DEV:
+	case SM5502_MUIC_ADC_TTY_CONVERTER:
+	case SM5502_MUIC_ADC_UART_CABLE:
+	case SM5502_MUIC_ADC_TYPE1_CHARGER:
+	case SM5502_MUIC_ADC_FACTORY_MODE_BOOT_OFF_USB:
+	case SM5502_MUIC_ADC_FACTORY_MODE_BOOT_ON_USB:
+	case SM5502_MUIC_ADC_AUDIO_VIDEO_CABLE:
+	case SM5502_MUIC_ADC_TYPE2_CHARGER:
+	case SM5502_MUIC_ADC_FACTORY_MODE_BOOT_OFF_UART:
+	case SM5502_MUIC_ADC_FACTORY_MODE_BOOT_ON_UART:
+		break;
+	case SM5502_MUIC_ADC_AUDIO_TYPE1:
+		/*
+		 * Check whether cable type is
+		 * SM5502_MUIC_ADC_AUDIO_TYPE1_FULL_REMOTE
+		 * or SM5502_MUIC_ADC_AUDIO_TYPE1_SEND_END
+		 * by using Button event.
+		 */
+		break;
+	case SM5502_MUIC_ADC_OPEN:
+		ret = regmap_read(info->regmap, SM5502_REG_DEV_TYPE1,
+				  &dev_type1);
+		if (ret) {
+			dev_err(info->dev, "failed to read DEV_TYPE1 reg\n");
+			return ret;
+		}
+
+		if (dev_type1 == info->type->otg_dev_type1) {
+			cable_type = SM5502_MUIC_ADC_OPEN_USB_OTG;
+			break;
+		}
+
+		switch (dev_type1) {
+		case SM5502_REG_DEV_TYPE1_USB_SDP_MASK:
+			cable_type = SM5502_MUIC_ADC_OPEN_USB;
+			break;
+		case SM5502_REG_DEV_TYPE1_DEDICATED_CHG_MASK:
+			cable_type = SM5502_MUIC_ADC_OPEN_TA;
+			break;
+		default:
+			dev_dbg(info->dev,
+				"cannot identify the cable type: adc(0x%x)\n",
+				adc);
+			return -EINVAL;
+		}
+		break;
+	default:
+		dev_err(info->dev,
+			"failed to identify the cable type: adc(0x%x)\n", adc);
+		return -EINVAL;
+	}
+
+	return cable_type;
+}
+
+static int sm5502_muic_cable_handler(struct sm5502_muic_info *info,
+				     bool attached)
+{
+	static unsigned int prev_cable_type = SM5502_MUIC_ADC_GROUND;
+	unsigned int cable_type = SM5502_MUIC_ADC_GROUND;
+	unsigned int con_sw = DM_DP_SWITCH_OPEN;
+	unsigned int vbus_sw = VBUSIN_SWITCH_OPEN;
+	unsigned int id;
+	int ret;
+
+	/* Get the type of attached or detached cable */
+	if (attached)
+		cable_type = sm5502_muic_get_cable_type(info);
+	else
+		cable_type = prev_cable_type;
+	prev_cable_type = cable_type;
+
+	switch (cable_type) {
+	case SM5502_MUIC_ADC_OPEN_USB:
+		id	= EXTCON_USB;
+		con_sw	= DM_DP_SWITCH_USB;
+		vbus_sw	= VBUSIN_SWITCH_VBUSOUT_WITH_USB;
+		break;
+	case SM5502_MUIC_ADC_OPEN_TA:
+		id	= EXTCON_CHG_USB_DCP;
+		con_sw	= DM_DP_SWITCH_OPEN;
+		vbus_sw	= VBUSIN_SWITCH_VBUSOUT;
+		break;
+	case SM5502_MUIC_ADC_GROUND_USB_OTG:
+	case SM5502_MUIC_ADC_OPEN_USB_OTG:
+		id	= EXTCON_USB_HOST;
+		con_sw	= DM_DP_SWITCH_USB;
+		vbus_sw	= VBUSIN_SWITCH_OPEN;
+		break;
+	default:
+		dev_dbg(info->dev,
+			"cannot handle this cable_type (0x%x)\n", cable_type);
+		return 0;
+	}
+
+	/* Change internal hardware path(DM_CON/DP_CON, VBUSIN) */
+	ret = sm5502_muic_set_path(info, con_sw, vbus_sw, attached);
+	if (ret < 0)
+		return ret;
+
+	/* Change the state of external accessory */
+	extcon_set_state_sync(info->edev, id, attached);
+	if (id == EXTCON_USB)
+		extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SDP,
+					attached);
+
+	return 0;
+}
+
+static void sm5502_muic_irq_work(struct work_struct *work)
+{
+	struct sm5502_muic_info *info = container_of(work,
+			struct sm5502_muic_info, irq_work);
+	int ret = 0;
+
+	if (!info->edev)
+		return;
+
+	mutex_lock(&info->mutex);
+
+	/* Detect attached or detached cables */
+	if (info->irq_attach) {
+		ret = sm5502_muic_cable_handler(info, true);
+		info->irq_attach = false;
+	}
+	if (info->irq_detach) {
+		ret = sm5502_muic_cable_handler(info, false);
+		info->irq_detach = false;
+	}
+
+	if (ret < 0)
+		dev_err(info->dev, "failed to handle MUIC interrupt\n");
+
+	mutex_unlock(&info->mutex);
+}
+
+/*
+ * Sets irq_attach or irq_detach in sm5502_muic_info and returns 0.
+ * Returns -ESRCH if irq_type does not match registered IRQ for this dev type.
+ */
+static int sm5502_parse_irq(struct sm5502_muic_info *info, int irq_type)
+{
+	switch (irq_type) {
+	case SM5502_IRQ_INT1_ATTACH:
+		info->irq_attach = true;
+		break;
+	case SM5502_IRQ_INT1_DETACH:
+		info->irq_detach = true;
+		break;
+	case SM5502_IRQ_INT1_KP:
+	case SM5502_IRQ_INT1_LKP:
+	case SM5502_IRQ_INT1_LKR:
+	case SM5502_IRQ_INT1_OVP_EVENT:
+	case SM5502_IRQ_INT1_OCP_EVENT:
+	case SM5502_IRQ_INT1_OVP_OCP_DIS:
+	case SM5502_IRQ_INT2_VBUS_DET:
+	case SM5502_IRQ_INT2_REV_ACCE:
+	case SM5502_IRQ_INT2_ADC_CHG:
+	case SM5502_IRQ_INT2_STUCK_KEY:
+	case SM5502_IRQ_INT2_STUCK_KEY_RCV:
+	case SM5502_IRQ_INT2_MHL:
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int sm5504_parse_irq(struct sm5502_muic_info *info, int irq_type)
+{
+	switch (irq_type) {
+	case SM5504_IRQ_INT1_ATTACH:
+		info->irq_attach = true;
+		break;
+	case SM5504_IRQ_INT1_DETACH:
+		info->irq_detach = true;
+		break;
+	case SM5504_IRQ_INT1_CHG_DET:
+	case SM5504_IRQ_INT1_DCD_OUT:
+	case SM5504_IRQ_INT1_OVP_EVENT:
+	case SM5504_IRQ_INT1_CONNECT:
+	case SM5504_IRQ_INT1_ADC_CHG:
+	case SM5504_IRQ_INT2_RID_CHG:
+	case SM5504_IRQ_INT2_UVLO:
+	case SM5504_IRQ_INT2_POR:
+	case SM5504_IRQ_INT2_OVP_FET:
+	case SM5504_IRQ_INT2_OCP_LATCH:
+	case SM5504_IRQ_INT2_OCP_EVENT:
+	case SM5504_IRQ_INT2_OVP_OCP_EVENT:
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static irqreturn_t sm5502_muic_irq_handler(int irq, void *data)
+{
+	struct sm5502_muic_info *info = data;
+	int i, irq_type = -1, ret;
+
+	for (i = 0; i < info->type->num_muic_irqs; i++)
+		if (irq == info->type->muic_irqs[i].virq)
+			irq_type = info->type->muic_irqs[i].irq;
+
+	ret = info->type->parse_irq(info, irq_type);
+	if (ret < 0) {
+		dev_warn(info->dev, "cannot handle is interrupt:%d\n",
+				    irq_type);
+		return IRQ_HANDLED;
+	}
+	schedule_work(&info->irq_work);
+
+	return IRQ_HANDLED;
+}
+
+static void sm5502_muic_detect_cable_wq(struct work_struct *work)
+{
+	struct sm5502_muic_info *info = container_of(to_delayed_work(work),
+				struct sm5502_muic_info, wq_detcable);
+	int ret;
+
+	/* Notify the state of connector cable or not  */
+	ret = sm5502_muic_cable_handler(info, true);
+	if (ret < 0)
+		dev_warn(info->dev, "failed to detect cable state\n");
+}
+
+static void sm5502_init_dev_type(struct sm5502_muic_info *info)
+{
+	unsigned int reg_data, vendor_id, version_id;
+	int i, ret;
+
+	/* To test I2C, Print version_id and vendor_id of SM5502 */
+	ret = regmap_read(info->regmap, SM5502_REG_DEVICE_ID, &reg_data);
+	if (ret) {
+		dev_err(info->dev,
+			"failed to read DEVICE_ID register: %d\n", ret);
+		return;
+	}
+
+	vendor_id = ((reg_data & SM5502_REG_DEVICE_ID_VENDOR_MASK) >>
+				SM5502_REG_DEVICE_ID_VENDOR_SHIFT);
+	version_id = ((reg_data & SM5502_REG_DEVICE_ID_VERSION_MASK) >>
+				SM5502_REG_DEVICE_ID_VERSION_SHIFT);
+
+	dev_info(info->dev, "Device type: version: 0x%x, vendor: 0x%x\n",
+			    version_id, vendor_id);
+
+	/* Initiazle the register of SM5502 device to bring-up */
+	for (i = 0; i < info->type->num_reg_data; i++) {
+		unsigned int val = 0;
+
+		if (!info->type->reg_data[i].invert)
+			val |= ~info->type->reg_data[i].val;
+		else
+			val = info->type->reg_data[i].val;
+		regmap_write(info->regmap, info->type->reg_data[i].reg, val);
+	}
+}
+
+static int sm5022_muic_i2c_probe(struct i2c_client *i2c)
+{
+	struct device_node *np = i2c->dev.of_node;
+	struct sm5502_muic_info *info;
+	int i, ret, irq_flags;
+
+	if (!np)
+		return -EINVAL;
+
+	info = devm_kzalloc(&i2c->dev, sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+	i2c_set_clientdata(i2c, info);
+
+	info->dev = &i2c->dev;
+	info->i2c = i2c;
+	info->irq = i2c->irq;
+	info->type = device_get_match_data(info->dev);
+	if (!info->type)
+		return -EINVAL;
+	if (!info->type->parse_irq) {
+		dev_err(info->dev, "parse_irq missing in struct sm5502_type\n");
+		return -EINVAL;
+	}
+
+	mutex_init(&info->mutex);
+
+	INIT_WORK(&info->irq_work, sm5502_muic_irq_work);
+
+	info->regmap = devm_regmap_init_i2c(i2c, &sm5502_muic_regmap_config);
+	if (IS_ERR(info->regmap)) {
+		ret = PTR_ERR(info->regmap);
+		dev_err(info->dev, "failed to allocate register map: %d\n",
+				   ret);
+		return ret;
+	}
+
+	/* Support irq domain for SM5502 MUIC device */
+	irq_flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT | IRQF_SHARED;
+	ret = devm_regmap_add_irq_chip(info->dev, info->regmap, info->irq,
+				       irq_flags, 0, info->type->irq_chip,
+				       &info->irq_data);
+	if (ret != 0) {
+		dev_err(info->dev, "failed to request IRQ %d: %d\n",
+				    info->irq, ret);
+		return ret;
+	}
+
+	for (i = 0; i < info->type->num_muic_irqs; i++) {
+		struct muic_irq *muic_irq = &info->type->muic_irqs[i];
+		int virq = 0;
+
+		virq = regmap_irq_get_virq(info->irq_data, muic_irq->irq);
+		if (virq <= 0)
+			return -EINVAL;
+		muic_irq->virq = virq;
+
+		ret = devm_request_threaded_irq(info->dev, virq, NULL,
+						sm5502_muic_irq_handler,
+						IRQF_NO_SUSPEND | IRQF_ONESHOT,
+						muic_irq->name, info);
+		if (ret) {
+			dev_err(info->dev,
+				"failed: irq request (IRQ: %d, error :%d)\n",
+				muic_irq->irq, ret);
+			return ret;
+		}
+	}
+
+	/* Allocate extcon device */
+	info->edev = devm_extcon_dev_allocate(info->dev, sm5502_extcon_cable);
+	if (IS_ERR(info->edev)) {
+		dev_err(info->dev, "failed to allocate memory for extcon\n");
+		return -ENOMEM;
+	}
+
+	/* Register extcon device */
+	ret = devm_extcon_dev_register(info->dev, info->edev);
+	if (ret) {
+		dev_err(info->dev, "failed to register extcon device\n");
+		return ret;
+	}
+
+	/*
+	 * Detect accessory after completing the initialization of platform
+	 *
+	 * - Use delayed workqueue to detect cable state and then
+	 * notify cable state to notifiee/platform through uevent.
+	 * After completing the booting of platform, the extcon provider
+	 * driver should notify cable state to upper layer.
+	 */
+	INIT_DELAYED_WORK(&info->wq_detcable, sm5502_muic_detect_cable_wq);
+	queue_delayed_work(system_power_efficient_wq, &info->wq_detcable,
+			msecs_to_jiffies(DELAY_MS_DEFAULT));
+
+	/* Initialize SM5502 device and print vendor id and version id */
+	sm5502_init_dev_type(info);
+
+	return 0;
+}
+
+static const struct sm5502_type sm5502_data = {
+	.muic_irqs = sm5502_muic_irqs,
+	.num_muic_irqs = ARRAY_SIZE(sm5502_muic_irqs),
+	.irq_chip = &sm5502_muic_irq_chip,
+	.reg_data = sm5502_reg_data,
+	.num_reg_data = ARRAY_SIZE(sm5502_reg_data),
+	.otg_dev_type1 = SM5502_REG_DEV_TYPE1_USB_OTG_MASK,
+	.parse_irq = sm5502_parse_irq,
+};
+
+static const struct sm5502_type sm5504_data = {
+	.muic_irqs = sm5504_muic_irqs,
+	.num_muic_irqs = ARRAY_SIZE(sm5504_muic_irqs),
+	.irq_chip = &sm5504_muic_irq_chip,
+	.reg_data = sm5504_reg_data,
+	.num_reg_data = ARRAY_SIZE(sm5504_reg_data),
+	.otg_dev_type1 = SM5504_REG_DEV_TYPE1_USB_OTG_MASK,
+	.parse_irq = sm5504_parse_irq,
+};
+
+static const struct of_device_id sm5502_dt_match[] = {
+	{ .compatible = "siliconmitus,sm5502-muic", .data = &sm5502_data },
+	{ .compatible = "siliconmitus,sm5504-muic", .data = &sm5504_data },
+	{ .compatible = "siliconmitus,sm5703-muic", .data = &sm5502_data },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, sm5502_dt_match);
+
+#ifdef CONFIG_PM_SLEEP
+static int sm5502_muic_suspend(struct device *dev)
+{
+	struct i2c_client *i2c = to_i2c_client(dev);
+	struct sm5502_muic_info *info = i2c_get_clientdata(i2c);
+
+	enable_irq_wake(info->irq);
+
+	return 0;
+}
+
+static int sm5502_muic_resume(struct device *dev)
+{
+	struct i2c_client *i2c = to_i2c_client(dev);
+	struct sm5502_muic_info *info = i2c_get_clientdata(i2c);
+
+	disable_irq_wake(info->irq);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(sm5502_muic_pm_ops,
+			 sm5502_muic_suspend, sm5502_muic_resume);
+
+static const struct i2c_device_id sm5502_i2c_id[] = {
+	{ "sm5502", (kernel_ulong_t)&sm5502_data },
+	{ "sm5504", (kernel_ulong_t)&sm5504_data },
+	{ "sm5703-muic", (kernel_ulong_t)&sm5502_data },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, sm5502_i2c_id);
+
+static struct i2c_driver sm5502_muic_i2c_driver = {
+	.driver		= {
+		.name	= "sm5502",
+		.pm	= &sm5502_muic_pm_ops,
+		.of_match_table = sm5502_dt_match,
+	},
+	.probe = sm5022_muic_i2c_probe,
+	.id_table = sm5502_i2c_id,
+};
+
+static int __init sm5502_muic_i2c_init(void)
+{
+	return i2c_add_driver(&sm5502_muic_i2c_driver);
+}
+subsys_initcall(sm5502_muic_i2c_init);
+
+MODULE_DESCRIPTION("Silicon Mitus SM5502 Extcon driver");
+MODULE_AUTHOR("Chanwoo Choi <cw00.choi@samsung.com>");
+MODULE_LICENSE("GPL");