From 914b881f9452fd615cc597b434fd8c0e12a7dae2 Mon Sep 17 00:00:00 2001 From: Chanwoo Choi Date: Thu, 22 May 2014 14:06:33 +0900 Subject: extcon: sm5502: Add support new SM5502 extcon device driver This patch add new SM5502 MUIC(Micro-USB Interface Controller) device by using EXTCON subsystem. The extcon-sm5502 driver is capable of identifying the type of the external power source and attached accessory. An external power sources, such as Deticated Charger or a standard USB port, are able to charge the battery in the smart phone via the connector. Signed-off-by: Chanwoo Choi diff --git a/drivers/extcon/Kconfig b/drivers/extcon/Kconfig index 9125eba..6f2f472 100644 --- a/drivers/extcon/Kconfig +++ b/drivers/extcon/Kconfig @@ -70,4 +70,14 @@ config EXTCON_PALMAS Say Y here to enable support for USB peripheral and USB host detection by palmas usb. +config EXTCON_SM5502 + tristate "SM5502 EXTCON support" + select IRQ_DOMAIN + select REGMAP_I2C + select REGMAP_IRQ + help + If you say yes here you get support for the MUIC device of + Silicon Mitus SM5502. The SM5502 is a USB port accessory + detector and switch. + endif # MULTISTATE_SWITCH diff --git a/drivers/extcon/Makefile b/drivers/extcon/Makefile index e48abc6..b38546e 100644 --- a/drivers/extcon/Makefile +++ b/drivers/extcon/Makefile @@ -10,3 +10,4 @@ obj-$(CONFIG_EXTCON_MAX14577) += extcon-max14577.o obj-$(CONFIG_EXTCON_MAX77693) += extcon-max77693.o obj-$(CONFIG_EXTCON_MAX8997) += extcon-max8997.o obj-$(CONFIG_EXTCON_PALMAS) += extcon-palmas.o +obj-$(CONFIG_EXTCON_SM5502) += extcon-sm5502.o diff --git a/drivers/extcon/extcon-sm5502.c b/drivers/extcon/extcon-sm5502.c new file mode 100644 index 0000000..9f318c2 --- /dev/null +++ b/drivers/extcon/extcon-sm5502.c @@ -0,0 +1,620 @@ +/* + * extcon-sm5502.c - Silicon Mitus SM5502 extcon drvier to support USB switches + * + * Copyright (c) 2014 Samsung Electronics Co., Ltd + * Author: Chanwoo Choi + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +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; + + struct regmap_irq_chip_data *irq_data; + struct muic_irq *muic_irqs; + unsigned int num_muic_irqs; + int irq; + bool irq_attach; + bool irq_detach; + struct work_struct irq_work; + + struct reg_data *reg_data; + unsigned int num_reg_data; + + struct mutex mutex; +}; + +/* Default value of SM5502 register to bring up MUIC device. */ +static struct reg_data sm5502_reg_data[] = { + { + .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, + }, + { } +}; + +/* List of detectable cables */ +enum { + EXTCON_CABLE_USB = 0, + EXTCON_CABLE_USB_HOST, + EXTCON_CABLE_TA, + + EXTCON_CABLE_END, +}; + +static const char *sm5502_extcon_cable[] = { + [EXTCON_CABLE_USB] = "USB", + [EXTCON_CABLE_USB_HOST] = "USB-Host", + [EXTCON_CABLE_TA] = "TA", + NULL, +}; + +/* 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_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, + .mask_invert = false, + .num_regs = 2, + .irqs = sm5502_irqs, + .num_irqs = ARRAY_SIZE(sm5502_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, +}; + +/* 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 = -1, 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 &= SM5502_REG_ADC_MASK; + if (cable_type == SM5502_MUIC_ADC_GROUND) + return SM5502_MUIC_ADC_GROUND; + + switch (cable_type) { + case SM5502_MUIC_ADC_GROUND: + 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; + } + + 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; + case SM5502_REG_DEV_TYPE1_USB_OTG_MASK: + cable_type = SM5502_MUIC_ADC_OPEN_USB_OTG; + break; + default: + dev_dbg(info->dev, + "cannot identify the cable type: adc(0x%x) " + "dev_type1(0x%x)\n", adc, dev_type1); + 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; + const char **cable_names = info->edev->supported_cable; + unsigned int cable_type = SM5502_MUIC_ADC_GROUND; + unsigned int idx = 0; + + if (!cable_names) + return 0; + + /* Get the type of attached or detached cable */ + if (attached) + cable_type = sm5502_muic_get_cable_type(info); + else if (!attached) + cable_type = prev_cable_type; + prev_cable_type = cable_type; + + switch (cable_type) { + case SM5502_MUIC_ADC_OPEN_USB: + idx = EXTCON_CABLE_USB; + break; + case SM5502_MUIC_ADC_OPEN_TA: + idx = EXTCON_CABLE_TA; + break; + case SM5502_MUIC_ADC_OPEN_USB_OTG: + idx = EXTCON_CABLE_USB_HOST; + break; + default: + dev_dbg(info->dev, + "cannot handle this cable_type (0x%x)\n", cable_type); + return 0; + }; + + extcon_set_cable_state(info->edev, cable_names[idx], 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); + + return; +} + +/* + * 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 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->num_muic_irqs; i++) + if (irq == info->muic_irqs[i].virq) + irq_type = info->muic_irqs[i].irq; + + ret = sm5502_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_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, ®_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->num_reg_data; i++) { + unsigned int val = 0; + + if (!info->reg_data[i].invert) + val |= ~info->reg_data[i].val; + else + val = info->reg_data[i].val; + regmap_write(info->regmap, info->reg_data[i].reg, val); + } +} + +static int sm5022_muic_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + 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->muic_irqs = sm5502_muic_irqs; + info->num_muic_irqs = ARRAY_SIZE(sm5502_muic_irqs); + info->reg_data = sm5502_reg_data; + info->num_reg_data = ARRAY_SIZE(sm5502_reg_data); + + 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 = regmap_add_irq_chip(info->regmap, info->irq, irq_flags, 0, + &sm5502_muic_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->num_muic_irqs; i++) { + struct muic_irq *muic_irq = &info->muic_irqs[i]; + unsigned 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, + 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; + } + info->edev->name = np->name; + + /* 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; + } + + /* Initialize SM5502 device and print vendor id and version id */ + sm5502_init_dev_type(info); + + return 0; +} + +static int sm5502_muic_i2c_remove(struct i2c_client *i2c) +{ + struct sm5502_muic_info *info = i2c_get_clientdata(i2c); + + regmap_del_irq_chip(info->irq, info->irq_data); + + return 0; +} + +static struct of_device_id sm5502_dt_match[] = { + { .compatible = "siliconmitus,sm5502-muic" }, + { }, +}; + +#ifdef CONFIG_PM_SLEEP +static int sm5502_muic_suspend(struct device *dev) +{ + struct i2c_client *i2c = container_of(dev, struct 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 = container_of(dev, struct 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", TYPE_SM5502 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, sm5502_i2c_id); + +static struct i2c_driver sm5502_muic_i2c_driver = { + .driver = { + .name = "sm5502", + .owner = THIS_MODULE, + .pm = &sm5502_muic_pm_ops, + .of_match_table = sm5502_dt_match, + }, + .probe = sm5022_muic_i2c_probe, + .remove = sm5502_muic_i2c_remove, + .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 "); +MODULE_LICENSE("GPL"); diff --git a/include/linux/extcon/sm5502.h b/include/linux/extcon/sm5502.h new file mode 100644 index 0000000..17bd655 --- /dev/null +++ b/include/linux/extcon/sm5502.h @@ -0,0 +1,264 @@ +/* + * sm5502.h + * + * Copyright (c) 2014 Samsung Electronics Co., Ltd + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __LINUX_EXTCON_SM5502_H +#define __LINUX_EXTCON_SM5502_H + +enum sm5502_types { + TYPE_SM5502, +}; + +/* SM5502 registers */ +enum sm5502_reg { + SM5502_REG_DEVICE_ID = 0x01, + SM5502_REG_CONTROL, + SM5502_REG_INT1, + SM5502_REG_INT2, + SM5502_REG_INTMASK1, + SM5502_REG_INTMASK2, + SM5502_REG_ADC, + SM5502_REG_TIMING_SET1, + SM5502_REG_TIMING_SET2, + SM5502_REG_DEV_TYPE1, + SM5502_REG_DEV_TYPE2, + SM5502_REG_BUTTON1, + SM5502_REG_BUTTON2, + SM5502_REG_CAR_KIT_STATUS, + SM5502_REG_RSVD1, + SM5502_REG_RSVD2, + SM5502_REG_RSVD3, + SM5502_REG_RSVD4, + SM5502_REG_MANUAL_SW1, + SM5502_REG_MANUAL_SW2, + SM5502_REG_DEV_TYPE3, + SM5502_REG_RSVD5, + SM5502_REG_RSVD6, + SM5502_REG_RSVD7, + SM5502_REG_RSVD8, + SM5502_REG_RSVD9, + SM5502_REG_RESET, + SM5502_REG_RSVD10, + SM5502_REG_RESERVED_ID1, + SM5502_REG_RSVD11, + SM5502_REG_RSVD12, + SM5502_REG_RESERVED_ID2, + SM5502_REG_RSVD13, + SM5502_REG_OCP, + SM5502_REG_RSVD14, + SM5502_REG_RSVD15, + SM5502_REG_RSVD16, + SM5502_REG_RSVD17, + SM5502_REG_RSVD18, + SM5502_REG_RSVD19, + SM5502_REG_RSVD20, + SM5502_REG_RSVD21, + SM5502_REG_RSVD22, + SM5502_REG_RSVD23, + SM5502_REG_RSVD24, + SM5502_REG_RSVD25, + SM5502_REG_RSVD26, + SM5502_REG_RSVD27, + SM5502_REG_RSVD28, + SM5502_REG_RSVD29, + SM5502_REG_RSVD30, + SM5502_REG_RSVD31, + SM5502_REG_RSVD32, + SM5502_REG_RSVD33, + SM5502_REG_RSVD34, + SM5502_REG_RSVD35, + SM5502_REG_RSVD36, + SM5502_REG_RESERVED_ID3, + + SM5502_REG_END, +}; + +/* Define SM5502 MASK/SHIFT constant */ +#define SM5502_REG_DEVICE_ID_VENDOR_SHIFT 0 +#define SM5502_REG_DEVICE_ID_VERSION_SHIFT 3 +#define SM5502_REG_DEVICE_ID_VENDOR_MASK (0x3 << SM5502_REG_DEVICE_ID_VENDOR_SHIFT) +#define SM5502_REG_DEVICE_ID_VERSION_MASK (0x1f << SM5502_REG_DEVICE_ID_VERSION_SHIFT) + +#define SM5502_REG_CONTROL_MASK_INT_SHIFT 0 +#define SM5502_REG_CONTROL_WAIT_SHIFT 1 +#define SM5502_REG_CONTROL_MANUAL_SW_SHIFT 2 +#define SM5502_REG_CONTROL_RAW_DATA_SHIFT 3 +#define SM5502_REG_CONTROL_SW_OPEN_SHIFT 4 +#define SM5502_REG_CONTROL_MASK_INT_MASK (0x1 << SM5502_REG_CONTROL_MASK_INT_SHIFT) +#define SM5502_REG_CONTROL_WAIT_MASK (0x1 << SM5502_REG_CONTROL_WAIT_SHIFT) +#define SM5502_REG_CONTROL_MANUAL_SW_MASK (0x1 << SM5502_REG_CONTROL_MANUAL_SW_SHIFT) +#define SM5502_REG_CONTROL_RAW_DATA_MASK (0x1 << SM5502_REG_CONTROL_RAW_DATA_SHIFT) +#define SM5502_REG_CONTROL_SW_OPEN_MASK (0x1 << SM5502_REG_CONTROL_SW_OPEN_SHIFT) + +#define SM5502_REG_INTM1_ATTACH_SHIFT 0 +#define SM5502_REG_INTM1_DETACH_SHIFT 1 +#define SM5502_REG_INTM1_KP_SHIFT 2 +#define SM5502_REG_INTM1_LKP_SHIFT 3 +#define SM5502_REG_INTM1_LKR_SHIFT 4 +#define SM5502_REG_INTM1_OVP_EVENT_SHIFT 5 +#define SM5502_REG_INTM1_OCP_EVENT_SHIFT 6 +#define SM5502_REG_INTM1_OVP_OCP_DIS_SHIFT 7 +#define SM5502_REG_INTM1_ATTACH_MASK (0x1 << SM5502_REG_INTM1_ATTACH_SHIFT) +#define SM5502_REG_INTM1_DETACH_MASK (0x1 << SM5502_REG_INTM1_DETACH_SHIFT) +#define SM5502_REG_INTM1_KP_MASK (0x1 << SM5502_REG_INTM1_KP_SHIFT) +#define SM5502_REG_INTM1_LKP_MASK (0x1 << SM5502_REG_INTM1_LKP_SHIFT) +#define SM5502_REG_INTM1_LKR_MASK (0x1 << SM5502_REG_INTM1_LKR_SHIFT) +#define SM5502_REG_INTM1_OVP_EVENT_MASK (0x1 << SM5502_REG_INTM1_OVP_EVENT_SHIFT) +#define SM5502_REG_INTM1_OCP_EVENT_MASK (0x1 << SM5502_REG_INTM1_OCP_EVENT_SHIFT) +#define SM5502_REG_INTM1_OVP_OCP_DIS_MASK (0x1 << SM5502_REG_INTM1_OVP_OCP_DIS_SHIFT) + +#define SM5502_REG_INTM2_VBUS_DET_SHIFT 0 +#define SM5502_REG_INTM2_REV_ACCE_SHIFT 1 +#define SM5502_REG_INTM2_ADC_CHG_SHIFT 2 +#define SM5502_REG_INTM2_STUCK_KEY_SHIFT 3 +#define SM5502_REG_INTM2_STUCK_KEY_RCV_SHIFT 4 +#define SM5502_REG_INTM2_MHL_SHIFT 5 +#define SM5502_REG_INTM2_VBUS_DET_MASK (0x1 << SM5502_REG_INTM2_VBUS_DET_SHIFT) +#define SM5502_REG_INTM2_REV_ACCE_MASK (0x1 << SM5502_REG_INTM2_REV_ACCE_SHIFT) +#define SM5502_REG_INTM2_ADC_CHG_MASK (0x1 << SM5502_REG_INTM2_ADC_CHG_SHIFT) +#define SM5502_REG_INTM2_STUCK_KEY_MASK (0x1 << SM5502_REG_INTM2_STUCK_KEY_SHIFT) +#define SM5502_REG_INTM2_STUCK_KEY_RCV_MASK (0x1 << SM5502_REG_INTM2_STUCK_KEY_RCV_SHIFT) +#define SM5502_REG_INTM2_MHL_MASK (0x1 << SM5502_REG_INTM2_MHL_SHIFT) + +#define SM5502_REG_ADC_SHIFT 0 +#define SM5502_REG_ADC_MASK (0x1f << SM5502_REG_ADC_SHIFT) + +#define SM5502_REG_TIMING_SET1_KEY_PRESS_SHIFT 4 +#define SM5502_REG_TIMING_SET1_KEY_PRESS_MASK (0xf << SM5502_REG_TIMING_SET1_KEY_PRESS_SHIFT) +#define TIMING_KEY_PRESS_100MS 0x0 +#define TIMING_KEY_PRESS_200MS 0x1 +#define TIMING_KEY_PRESS_300MS 0x2 +#define TIMING_KEY_PRESS_400MS 0x3 +#define TIMING_KEY_PRESS_500MS 0x4 +#define TIMING_KEY_PRESS_600MS 0x5 +#define TIMING_KEY_PRESS_700MS 0x6 +#define TIMING_KEY_PRESS_800MS 0x7 +#define TIMING_KEY_PRESS_900MS 0x8 +#define TIMING_KEY_PRESS_1000MS 0x9 +#define SM5502_REG_TIMING_SET1_ADC_DET_SHIFT 0 +#define SM5502_REG_TIMING_SET1_ADC_DET_MASK (0xf << SM5502_REG_TIMING_SET1_ADC_DET_SHIFT) +#define TIMING_ADC_DET_50MS 0x0 +#define TIMING_ADC_DET_100MS 0x1 +#define TIMING_ADC_DET_150MS 0x2 +#define TIMING_ADC_DET_200MS 0x3 +#define TIMING_ADC_DET_300MS 0x4 +#define TIMING_ADC_DET_400MS 0x5 +#define TIMING_ADC_DET_500MS 0x6 +#define TIMING_ADC_DET_600MS 0x7 +#define TIMING_ADC_DET_700MS 0x8 +#define TIMING_ADC_DET_800MS 0x9 +#define TIMING_ADC_DET_900MS 0xA +#define TIMING_ADC_DET_1000MS 0xB + +#define SM5502_REG_TIMING_SET2_SW_WAIT_SHIFT 4 +#define SM5502_REG_TIMING_SET2_SW_WAIT_MASK (0xf << SM5502_REG_TIMING_SET2_SW_WAIT_SHIFT) +#define TIMING_SW_WAIT_10MS 0x0 +#define TIMING_SW_WAIT_30MS 0x1 +#define TIMING_SW_WAIT_50MS 0x2 +#define TIMING_SW_WAIT_70MS 0x3 +#define TIMING_SW_WAIT_90MS 0x4 +#define TIMING_SW_WAIT_110MS 0x5 +#define TIMING_SW_WAIT_130MS 0x6 +#define TIMING_SW_WAIT_150MS 0x7 +#define TIMING_SW_WAIT_170MS 0x8 +#define TIMING_SW_WAIT_190MS 0x9 +#define TIMING_SW_WAIT_210MS 0xA +#define SM5502_REG_TIMING_SET2_LONG_KEY_SHIFT 0 +#define SM5502_REG_TIMING_SET2_LONG_KEY_MASK (0xf << SM5502_REG_TIMING_SET2_LONG_KEY_SHIFT) +#define TIMING_LONG_KEY_300MS 0x0 +#define TIMING_LONG_KEY_400MS 0x1 +#define TIMING_LONG_KEY_500MS 0x2 +#define TIMING_LONG_KEY_600MS 0x3 +#define TIMING_LONG_KEY_700MS 0x4 +#define TIMING_LONG_KEY_800MS 0x5 +#define TIMING_LONG_KEY_900MS 0x6 +#define TIMING_LONG_KEY_1000MS 0x7 +#define TIMING_LONG_KEY_1100MS 0x8 +#define TIMING_LONG_KEY_1200MS 0x9 +#define TIMING_LONG_KEY_1300MS 0xA +#define TIMING_LONG_KEY_1400MS 0xB +#define TIMING_LONG_KEY_1500MS 0xC + +#define SM5502_REG_DEV_TYPE1_AUDIO_TYPE1_SHIFT 0 +#define SM5502_REG_DEV_TYPE1_AUDIO_TYPE2_SHIFT 1 +#define SM5502_REG_DEV_TYPE1_USB_SDP_SHIFT 2 +#define SM5502_REG_DEV_TYPE1_UART_SHIFT 3 +#define SM5502_REG_DEV_TYPE1_CAR_KIT_CHARGER_SHIFT 4 +#define SM5502_REG_DEV_TYPE1_USB_CHG_SHIFT 5 +#define SM5502_REG_DEV_TYPE1_DEDICATED_CHG_SHIFT 6 +#define SM5502_REG_DEV_TYPE1_USB_OTG_SHIFT 7 +#define SM5502_REG_DEV_TYPE1_AUDIO_TYPE1_MASK (0x1 << SM5502_REG_DEV_TYPE1_AUDIO_TYPE1_SHIFT) +#define SM5502_REG_DEV_TYPE1_AUDIO_TYPE1__MASK (0x1 << SM5502_REG_DEV_TYPE1_AUDIO_TYPE2_SHIFT) +#define SM5502_REG_DEV_TYPE1_USB_SDP_MASK (0x1 << SM5502_REG_DEV_TYPE1_USB_SDP_SHIFT) +#define SM5502_REG_DEV_TYPE1_UART_MASK (0x1 << SM5502_REG_DEV_TYPE1_UART_SHIFT) +#define SM5502_REG_DEV_TYPE1_CAR_KIT_CHARGER_MASK (0x1 << SM5502_REG_DEV_TYPE1_CAR_KIT_CHARGER_SHIFT) +#define SM5502_REG_DEV_TYPE1_USB_CHG_MASK (0x1 << SM5502_REG_DEV_TYPE1_USB_CHG_SHIFT) +#define SM5502_REG_DEV_TYPE1_DEDICATED_CHG_MASK (0x1 << SM5502_REG_DEV_TYPE1_DEDICATED_CHG_SHIFT) +#define SM5502_REG_DEV_TYPE1_USB_OTG_MASK (0x1 << SM5502_REG_DEV_TYPE1_USB_OTG_SHIFT) + +#define SM5502_REG_DEV_TYPE2_JIG_USB_ON_SHIFT 0 +#define SM5502_REG_DEV_TYPE2_JIG_USB_OFF_SHIFT 1 +#define SM5502_REG_DEV_TYPE2_JIG_UART_ON_SHIFT 2 +#define SM5502_REG_DEV_TYPE2_JIG_UART_OFF_SHIFT 3 +#define SM5502_REG_DEV_TYPE2_PPD_SHIFT 4 +#define SM5502_REG_DEV_TYPE2_TTY_SHIFT 5 +#define SM5502_REG_DEV_TYPE2_AV_CABLE_SHIFT 6 +#define SM5502_REG_DEV_TYPE2_JIG_USB_ON_MASK (0x1 << SM5502_REG_DEV_TYPE2_JIG_USB_ON_SHIFT) +#define SM5502_REG_DEV_TYPE2_JIG_USB_OFF_MASK (0x1 << SM5502_REG_DEV_TYPE2_JIG_USB_OFF_SHIFT) +#define SM5502_REG_DEV_TYPE2_JIG_UART_ON_MASK (0x1 << SM5502_REG_DEV_TYPE2_JIG_UART_ON_SHIFT) +#define SM5502_REG_DEV_TYPE2_JIG_UART_OFF_MASK (0x1 << SM5502_REG_DEV_TYPE2_JIG_UART_OFF_SHIFT) +#define SM5502_REG_DEV_TYPE2_PPD_MASK (0x1 << SM5502_REG_DEV_TYPE2_PPD_SHIFT) +#define SM5502_REG_DEV_TYPE2_TTY_MASK (0x1 << SM5502_REG_DEV_TYPE2_TTY_SHIFT) +#define SM5502_REG_DEV_TYPE2_AV_CABLE_MASK (0x1 << SM5502_REG_DEV_TYPE2_AV_CABLE_SHIFT) + +/* SM5502 Interrupts */ +enum sm5502_irq { + /* INT1 */ + SM5502_IRQ_INT1_ATTACH, + SM5502_IRQ_INT1_DETACH, + SM5502_IRQ_INT1_KP, + SM5502_IRQ_INT1_LKP, + SM5502_IRQ_INT1_LKR, + SM5502_IRQ_INT1_OVP_EVENT, + SM5502_IRQ_INT1_OCP_EVENT, + SM5502_IRQ_INT1_OVP_OCP_DIS, + + /* INT2 */ + SM5502_IRQ_INT2_VBUS_DET, + SM5502_IRQ_INT2_REV_ACCE, + SM5502_IRQ_INT2_ADC_CHG, + SM5502_IRQ_INT2_STUCK_KEY, + SM5502_IRQ_INT2_STUCK_KEY_RCV, + SM5502_IRQ_INT2_MHL, + + SM5502_IRQ_NUM, +}; + +#define SM5502_IRQ_INT1_ATTACH_MASK BIT(0) +#define SM5502_IRQ_INT1_DETACH_MASK BIT(1) +#define SM5502_IRQ_INT1_KP_MASK BIT(2) +#define SM5502_IRQ_INT1_LKP_MASK BIT(3) +#define SM5502_IRQ_INT1_LKR_MASK BIT(4) +#define SM5502_IRQ_INT1_OVP_EVENT_MASK BIT(5) +#define SM5502_IRQ_INT1_OCP_EVENT_MASK BIT(6) +#define SM5502_IRQ_INT1_OVP_OCP_DIS_MASK BIT(7) +#define SM5502_IRQ_INT2_VBUS_DET_MASK BIT(0) +#define SM5502_IRQ_INT2_REV_ACCE_MASK BIT(1) +#define SM5502_IRQ_INT2_ADC_CHG_MASK BIT(2) +#define SM5502_IRQ_INT2_STUCK_KEY_MASK BIT(3) +#define SM5502_IRQ_INT2_STUCK_KEY_RCV_MASK BIT(4) +#define SM5502_IRQ_INT2_MHL_MASK BIT(5) + +#endif /* __LINUX_EXTCON_SM5502_H */ -- cgit v0.10.2