mirror of https://gitee.com/openkylin/linux.git
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 <cw00.choi@samsung.com>
This commit is contained in:
Chanwoo Choi
parent
17271f608b
commit
914b881f94
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@ -70,4 +70,14 @@ config EXTCON_PALMAS
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Say Y here to enable support for USB peripheral and USB host
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detection by palmas usb.
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config EXTCON_SM5502
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tristate "SM5502 EXTCON support"
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select IRQ_DOMAIN
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select REGMAP_I2C
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select REGMAP_IRQ
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help
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If you say yes here you get support for the MUIC device of
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Silicon Mitus SM5502. The SM5502 is a USB port accessory
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detector and switch.
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endif # MULTISTATE_SWITCH
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@ -10,3 +10,4 @@ obj-$(CONFIG_EXTCON_MAX14577) += extcon-max14577.o
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obj-$(CONFIG_EXTCON_MAX77693) += extcon-max77693.o
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obj-$(CONFIG_EXTCON_MAX8997) += extcon-max8997.o
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obj-$(CONFIG_EXTCON_PALMAS) += extcon-palmas.o
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obj-$(CONFIG_EXTCON_SM5502) += extcon-sm5502.o
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@ -0,0 +1,620 @@
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/*
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* extcon-sm5502.c - Silicon Mitus SM5502 extcon drvier to support USB switches
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*
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* Copyright (c) 2014 Samsung Electronics Co., Ltd
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* Author: Chanwoo Choi <cw00.choi@samsung.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/err.h>
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#include <linux/i2c.h>
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#include <linux/input.h>
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#include <linux/interrupt.h>
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#include <linux/irqdomain.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/regmap.h>
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#include <linux/slab.h>
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#include <linux/extcon.h>
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#include <linux/extcon/sm5502.h>
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struct muic_irq {
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unsigned int irq;
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const char *name;
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unsigned int virq;
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};
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struct reg_data {
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u8 reg;
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unsigned int val;
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bool invert;
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};
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struct sm5502_muic_info {
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struct device *dev;
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struct extcon_dev *edev;
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struct i2c_client *i2c;
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struct regmap *regmap;
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struct regmap_irq_chip_data *irq_data;
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struct muic_irq *muic_irqs;
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unsigned int num_muic_irqs;
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int irq;
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bool irq_attach;
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bool irq_detach;
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struct work_struct irq_work;
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struct reg_data *reg_data;
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unsigned int num_reg_data;
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struct mutex mutex;
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};
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/* Default value of SM5502 register to bring up MUIC device. */
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static struct reg_data sm5502_reg_data[] = {
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{
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.reg = SM5502_REG_CONTROL,
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.val = SM5502_REG_CONTROL_MASK_INT_MASK,
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.invert = false,
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}, {
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.reg = SM5502_REG_INTMASK1,
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.val = SM5502_REG_INTM1_KP_MASK
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| SM5502_REG_INTM1_LKP_MASK
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| SM5502_REG_INTM1_LKR_MASK,
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.invert = true,
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}, {
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.reg = SM5502_REG_INTMASK2,
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.val = SM5502_REG_INTM2_VBUS_DET_MASK
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| SM5502_REG_INTM2_REV_ACCE_MASK
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| SM5502_REG_INTM2_ADC_CHG_MASK
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| SM5502_REG_INTM2_STUCK_KEY_MASK
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| SM5502_REG_INTM2_STUCK_KEY_RCV_MASK
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| SM5502_REG_INTM2_MHL_MASK,
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.invert = true,
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},
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{ }
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};
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/* List of detectable cables */
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enum {
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EXTCON_CABLE_USB = 0,
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EXTCON_CABLE_USB_HOST,
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EXTCON_CABLE_TA,
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EXTCON_CABLE_END,
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};
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static const char *sm5502_extcon_cable[] = {
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[EXTCON_CABLE_USB] = "USB",
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[EXTCON_CABLE_USB_HOST] = "USB-Host",
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[EXTCON_CABLE_TA] = "TA",
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NULL,
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};
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/* Define supported accessory type */
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enum sm5502_muic_acc_type {
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SM5502_MUIC_ADC_GROUND = 0x0,
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SM5502_MUIC_ADC_SEND_END_BUTTON,
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SM5502_MUIC_ADC_REMOTE_S1_BUTTON,
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SM5502_MUIC_ADC_REMOTE_S2_BUTTON,
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SM5502_MUIC_ADC_REMOTE_S3_BUTTON,
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SM5502_MUIC_ADC_REMOTE_S4_BUTTON,
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SM5502_MUIC_ADC_REMOTE_S5_BUTTON,
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SM5502_MUIC_ADC_REMOTE_S6_BUTTON,
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SM5502_MUIC_ADC_REMOTE_S7_BUTTON,
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SM5502_MUIC_ADC_REMOTE_S8_BUTTON,
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SM5502_MUIC_ADC_REMOTE_S9_BUTTON,
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SM5502_MUIC_ADC_REMOTE_S10_BUTTON,
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SM5502_MUIC_ADC_REMOTE_S11_BUTTON,
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SM5502_MUIC_ADC_REMOTE_S12_BUTTON,
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SM5502_MUIC_ADC_RESERVED_ACC_1,
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SM5502_MUIC_ADC_RESERVED_ACC_2,
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SM5502_MUIC_ADC_RESERVED_ACC_3,
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SM5502_MUIC_ADC_RESERVED_ACC_4,
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SM5502_MUIC_ADC_RESERVED_ACC_5,
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SM5502_MUIC_ADC_AUDIO_TYPE2,
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SM5502_MUIC_ADC_PHONE_POWERED_DEV,
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SM5502_MUIC_ADC_TTY_CONVERTER,
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SM5502_MUIC_ADC_UART_CABLE,
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SM5502_MUIC_ADC_TYPE1_CHARGER,
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SM5502_MUIC_ADC_FACTORY_MODE_BOOT_OFF_USB,
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SM5502_MUIC_ADC_FACTORY_MODE_BOOT_ON_USB,
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SM5502_MUIC_ADC_AUDIO_VIDEO_CABLE,
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SM5502_MUIC_ADC_TYPE2_CHARGER,
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SM5502_MUIC_ADC_FACTORY_MODE_BOOT_OFF_UART,
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SM5502_MUIC_ADC_FACTORY_MODE_BOOT_ON_UART,
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SM5502_MUIC_ADC_AUDIO_TYPE1,
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SM5502_MUIC_ADC_OPEN = 0x1f,
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/* The below accessories have same ADC value (0x1f or 0x1e).
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So, Device type1 is used to separate specific accessory. */
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/* |---------|--ADC| */
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/* | [7:5]|[4:0]| */
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SM5502_MUIC_ADC_AUDIO_TYPE1_FULL_REMOTE = 0x3e, /* | 001|11110| */
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SM5502_MUIC_ADC_AUDIO_TYPE1_SEND_END = 0x5e, /* | 010|11110| */
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/* |Dev Type1|--ADC| */
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SM5502_MUIC_ADC_OPEN_USB = 0x5f, /* | 010|11111| */
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SM5502_MUIC_ADC_OPEN_TA = 0xdf, /* | 110|11111| */
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SM5502_MUIC_ADC_OPEN_USB_OTG = 0xff, /* | 111|11111| */
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};
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/* List of supported interrupt for SM5502 */
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static struct muic_irq sm5502_muic_irqs[] = {
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{ SM5502_IRQ_INT1_ATTACH, "muic-attach" },
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{ SM5502_IRQ_INT1_DETACH, "muic-detach" },
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{ SM5502_IRQ_INT1_KP, "muic-kp" },
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{ SM5502_IRQ_INT1_LKP, "muic-lkp" },
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{ SM5502_IRQ_INT1_LKR, "muic-lkr" },
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{ SM5502_IRQ_INT1_OVP_EVENT, "muic-ovp-event" },
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{ SM5502_IRQ_INT1_OCP_EVENT, "muic-ocp-event" },
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{ SM5502_IRQ_INT1_OVP_OCP_DIS, "muic-ovp-ocp-dis" },
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{ SM5502_IRQ_INT2_VBUS_DET, "muic-vbus-det" },
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{ SM5502_IRQ_INT2_REV_ACCE, "muic-rev-acce" },
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{ SM5502_IRQ_INT2_ADC_CHG, "muic-adc-chg" },
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{ SM5502_IRQ_INT2_STUCK_KEY, "muic-stuck-key" },
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{ SM5502_IRQ_INT2_STUCK_KEY_RCV, "muic-stuck-key-rcv" },
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{ SM5502_IRQ_INT2_MHL, "muic-mhl" },
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};
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/* Define interrupt list of SM5502 to register regmap_irq */
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static const struct regmap_irq sm5502_irqs[] = {
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/* INT1 interrupts */
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{ .reg_offset = 0, .mask = SM5502_IRQ_INT1_ATTACH_MASK, },
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{ .reg_offset = 0, .mask = SM5502_IRQ_INT1_DETACH_MASK, },
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{ .reg_offset = 0, .mask = SM5502_IRQ_INT1_KP_MASK, },
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{ .reg_offset = 0, .mask = SM5502_IRQ_INT1_LKP_MASK, },
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{ .reg_offset = 0, .mask = SM5502_IRQ_INT1_LKR_MASK, },
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{ .reg_offset = 0, .mask = SM5502_IRQ_INT1_OVP_EVENT_MASK, },
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{ .reg_offset = 0, .mask = SM5502_IRQ_INT1_OCP_EVENT_MASK, },
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{ .reg_offset = 0, .mask = SM5502_IRQ_INT1_OVP_OCP_DIS_MASK, },
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/* INT2 interrupts */
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{ .reg_offset = 1, .mask = SM5502_IRQ_INT2_VBUS_DET_MASK,},
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{ .reg_offset = 1, .mask = SM5502_IRQ_INT2_REV_ACCE_MASK, },
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{ .reg_offset = 1, .mask = SM5502_IRQ_INT2_ADC_CHG_MASK, },
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{ .reg_offset = 1, .mask = SM5502_IRQ_INT2_STUCK_KEY_MASK, },
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{ .reg_offset = 1, .mask = SM5502_IRQ_INT2_STUCK_KEY_RCV_MASK, },
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{ .reg_offset = 1, .mask = SM5502_IRQ_INT2_MHL_MASK, },
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};
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static const struct regmap_irq_chip sm5502_muic_irq_chip = {
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.name = "sm5502",
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.status_base = SM5502_REG_INT1,
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.mask_base = SM5502_REG_INTMASK1,
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.mask_invert = false,
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.num_regs = 2,
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.irqs = sm5502_irqs,
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.num_irqs = ARRAY_SIZE(sm5502_irqs),
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};
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/* Define regmap configuration of SM5502 for I2C communication */
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static bool sm5502_muic_volatile_reg(struct device *dev, unsigned int reg)
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{
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switch (reg) {
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case SM5502_REG_INTMASK1:
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case SM5502_REG_INTMASK2:
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return true;
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default:
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break;
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}
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return false;
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}
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static const struct regmap_config sm5502_muic_regmap_config = {
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.reg_bits = 8,
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.val_bits = 8,
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.volatile_reg = sm5502_muic_volatile_reg,
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.max_register = SM5502_REG_END,
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};
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/* Return cable type of attached or detached accessories */
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static unsigned int sm5502_muic_get_cable_type(struct sm5502_muic_info *info)
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{
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unsigned int cable_type = -1, adc, dev_type1;
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int ret;
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/* Read ADC value according to external cable or button */
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ret = regmap_read(info->regmap, SM5502_REG_ADC, &adc);
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if (ret) {
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dev_err(info->dev, "failed to read ADC register\n");
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return ret;
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}
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/*
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* If ADC is SM5502_MUIC_ADC_GROUND(0x0), external cable hasn't
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* connected with to MUIC device.
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*/
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cable_type &= SM5502_REG_ADC_MASK;
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if (cable_type == SM5502_MUIC_ADC_GROUND)
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return SM5502_MUIC_ADC_GROUND;
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switch (cable_type) {
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case SM5502_MUIC_ADC_GROUND:
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case SM5502_MUIC_ADC_SEND_END_BUTTON:
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case SM5502_MUIC_ADC_REMOTE_S1_BUTTON:
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case SM5502_MUIC_ADC_REMOTE_S2_BUTTON:
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case SM5502_MUIC_ADC_REMOTE_S3_BUTTON:
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case SM5502_MUIC_ADC_REMOTE_S4_BUTTON:
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case SM5502_MUIC_ADC_REMOTE_S5_BUTTON:
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case SM5502_MUIC_ADC_REMOTE_S6_BUTTON:
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case SM5502_MUIC_ADC_REMOTE_S7_BUTTON:
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case SM5502_MUIC_ADC_REMOTE_S8_BUTTON:
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case SM5502_MUIC_ADC_REMOTE_S9_BUTTON:
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case SM5502_MUIC_ADC_REMOTE_S10_BUTTON:
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case SM5502_MUIC_ADC_REMOTE_S11_BUTTON:
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case SM5502_MUIC_ADC_REMOTE_S12_BUTTON:
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case SM5502_MUIC_ADC_RESERVED_ACC_1:
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case SM5502_MUIC_ADC_RESERVED_ACC_2:
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case SM5502_MUIC_ADC_RESERVED_ACC_3:
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case SM5502_MUIC_ADC_RESERVED_ACC_4:
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case SM5502_MUIC_ADC_RESERVED_ACC_5:
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case SM5502_MUIC_ADC_AUDIO_TYPE2:
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case SM5502_MUIC_ADC_PHONE_POWERED_DEV:
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case SM5502_MUIC_ADC_TTY_CONVERTER:
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case SM5502_MUIC_ADC_UART_CABLE:
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case SM5502_MUIC_ADC_TYPE1_CHARGER:
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case SM5502_MUIC_ADC_FACTORY_MODE_BOOT_OFF_USB:
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case SM5502_MUIC_ADC_FACTORY_MODE_BOOT_ON_USB:
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case SM5502_MUIC_ADC_AUDIO_VIDEO_CABLE:
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case SM5502_MUIC_ADC_TYPE2_CHARGER:
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case SM5502_MUIC_ADC_FACTORY_MODE_BOOT_OFF_UART:
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case SM5502_MUIC_ADC_FACTORY_MODE_BOOT_ON_UART:
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break;
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case SM5502_MUIC_ADC_AUDIO_TYPE1:
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/*
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* Check whether cable type is
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* SM5502_MUIC_ADC_AUDIO_TYPE1_FULL_REMOTE
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* or SM5502_MUIC_ADC_AUDIO_TYPE1_SEND_END
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* by using Button event.
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*/
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break;
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case SM5502_MUIC_ADC_OPEN:
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ret = regmap_read(info->regmap, SM5502_REG_DEV_TYPE1,
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&dev_type1);
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if (ret) {
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dev_err(info->dev, "failed to read DEV_TYPE1 reg\n");
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return ret;
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}
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switch (dev_type1) {
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case SM5502_REG_DEV_TYPE1_USB_SDP_MASK:
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cable_type = SM5502_MUIC_ADC_OPEN_USB;
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break;
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case SM5502_REG_DEV_TYPE1_DEDICATED_CHG_MASK:
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cable_type = SM5502_MUIC_ADC_OPEN_TA;
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break;
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case SM5502_REG_DEV_TYPE1_USB_OTG_MASK:
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cable_type = SM5502_MUIC_ADC_OPEN_USB_OTG;
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break;
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default:
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dev_dbg(info->dev,
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"cannot identify the cable type: adc(0x%x) "
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"dev_type1(0x%x)\n", adc, dev_type1);
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return -EINVAL;
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};
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break;
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default:
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dev_err(info->dev,
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"failed to identify the cable type: adc(0x%x)\n", adc);
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return -EINVAL;
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};
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return cable_type;
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}
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static int sm5502_muic_cable_handler(struct sm5502_muic_info *info,
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bool attached)
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{
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static unsigned int prev_cable_type = SM5502_MUIC_ADC_GROUND;
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const char **cable_names = info->edev->supported_cable;
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unsigned int cable_type = SM5502_MUIC_ADC_GROUND;
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unsigned int idx = 0;
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if (!cable_names)
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return 0;
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/* Get the type of attached or detached cable */
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if (attached)
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cable_type = sm5502_muic_get_cable_type(info);
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else if (!attached)
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cable_type = prev_cable_type;
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prev_cable_type = cable_type;
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switch (cable_type) {
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case SM5502_MUIC_ADC_OPEN_USB:
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idx = EXTCON_CABLE_USB;
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break;
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case SM5502_MUIC_ADC_OPEN_TA:
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idx = EXTCON_CABLE_TA;
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break;
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case SM5502_MUIC_ADC_OPEN_USB_OTG:
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idx = EXTCON_CABLE_USB_HOST;
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break;
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default:
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dev_dbg(info->dev,
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"cannot handle this cable_type (0x%x)\n", cable_type);
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return 0;
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};
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extcon_set_cable_state(info->edev, cable_names[idx], attached);
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return 0;
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}
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static void sm5502_muic_irq_work(struct work_struct *work)
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{
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struct sm5502_muic_info *info = container_of(work,
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struct sm5502_muic_info, irq_work);
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int ret = 0;
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if (!info->edev)
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return;
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mutex_lock(&info->mutex);
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/* Detect attached or detached cables */
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if (info->irq_attach) {
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ret = sm5502_muic_cable_handler(info, true);
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info->irq_attach = false;
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}
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if (info->irq_detach) {
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||||
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 <cw00.choi@samsung.com>");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
|
@ -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
|
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#define TIMING_ADC_DET_150MS 0x2
|
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#define TIMING_ADC_DET_200MS 0x3
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#define TIMING_ADC_DET_300MS 0x4
|
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#define TIMING_ADC_DET_400MS 0x5
|
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#define TIMING_ADC_DET_500MS 0x6
|
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#define TIMING_ADC_DET_600MS 0x7
|
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#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
|
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#define TIMING_SW_WAIT_70MS 0x3
|
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#define TIMING_SW_WAIT_90MS 0x4
|
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#define TIMING_SW_WAIT_110MS 0x5
|
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#define TIMING_SW_WAIT_130MS 0x6
|
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#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 */
|
||||
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Reference in New Issue