diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index b01fbe27822d..8594de8b86a0 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -563,6 +563,15 @@ config EZX_PCAP This enables the PCAP ASIC present on EZX Phones. This is needed for MMC, TouchScreen, Sound, USB, etc.. +config AB5500_CORE + bool "ST-Ericsson AB5500 Mixed Signal Power Management chip" + depends on ABX500_CORE && MFD_DB5500_PRCMU + select MFD_CORE + help + Select this option to enable access to AB5500 power management + chip. This connects to the db5500 chip via the I2C bus via PRCMU. + This chip embeds various other multimedia funtionalities as well. + config AB8500_CORE bool "ST-Ericsson AB8500 Mixed Signal Power Management chip" depends on GENERIC_HARDIRQS && ABX500_CORE diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 7d53a7c530c8..457fed8474cf 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -80,6 +80,7 @@ obj-$(CONFIG_ABX500_CORE) += abx500-core.o obj-$(CONFIG_AB3100_CORE) += ab3100-core.o obj-$(CONFIG_AB3100_OTP) += ab3100-otp.o obj-$(CONFIG_AB3550_CORE) += ab3550-core.o +obj-$(CONFIG_AB5500_CORE) += ab5500-core.o obj-$(CONFIG_AB8500_CORE) += ab8500-core.o ab8500-sysctrl.o obj-$(CONFIG_AB8500_DEBUG) += ab8500-debugfs.o obj-$(CONFIG_AB8500_GPADC) += ab8500-gpadc.o diff --git a/drivers/mfd/ab5500-core.c b/drivers/mfd/ab5500-core.c new file mode 100644 index 000000000000..afec0f2ede42 --- /dev/null +++ b/drivers/mfd/ab5500-core.c @@ -0,0 +1,2312 @@ +/* + * Copyright (C) 2007-2011 ST-Ericsson + * License terms: GNU General Public License (GPL) version 2 + * Low-level core for exclusive access to the AB5500 IC on the I2C bus + * and some basic chip-configuration. + * Author: Bengt Jonsson + * Author: Mattias Nilsson + * Author: Mattias Wallin + * Author: Rickard Andersson + * Author: Karl Komierowski + * Author: Bibek Basu + * + * TODO: Event handling with irq_chip. Waiting for PRCMU fw support. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define AB5500_NUM_EVENT_REG 23 +#define AB5500_IT_LATCH0_REG 0x40 +#define AB5500_IT_MASK0_REG 0x60 + +/* Read/write operation values. */ +#define AB5500_PERM_RD (0x01) +#define AB5500_PERM_WR (0x02) + +/* Read/write permissions. */ +#define AB5500_PERM_RO (AB5500_PERM_RD) +#define AB5500_PERM_RW (AB5500_PERM_RD | AB5500_PERM_WR) + +#define AB5500_MASK_BASE (0x60) +#define AB5500_MASK_END (0x79) +#define AB5500_CHIP_ID (0x20) + +/** + * struct ab5500_bank + * @slave_addr: I2C slave_addr found in AB5500 specification + * @name: Documentation name of the bank. For reference + */ +struct ab5500_bank { + u8 slave_addr; + const char *name; +}; + +static const struct ab5500_bank bankinfo[AB5500_NUM_BANKS] = { + [AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP] = { + AB5500_ADDR_VIT_IO_I2C_CLK_TST_OTP, "VIT_IO_I2C_CLK_TST_OTP"}, + [AB5500_BANK_VDDDIG_IO_I2C_CLK_TST] = { + AB5500_ADDR_VDDDIG_IO_I2C_CLK_TST, "VDDDIG_IO_I2C_CLK_TST"}, + [AB5500_BANK_VDENC] = {AB5500_ADDR_VDENC, "VDENC"}, + [AB5500_BANK_SIM_USBSIM] = {AB5500_ADDR_SIM_USBSIM, "SIM_USBSIM"}, + [AB5500_BANK_LED] = {AB5500_ADDR_LED, "LED"}, + [AB5500_BANK_ADC] = {AB5500_ADDR_ADC, "ADC"}, + [AB5500_BANK_RTC] = {AB5500_ADDR_RTC, "RTC"}, + [AB5500_BANK_STARTUP] = {AB5500_ADDR_STARTUP, "STARTUP"}, + [AB5500_BANK_DBI_ECI] = {AB5500_ADDR_DBI_ECI, "DBI-ECI"}, + [AB5500_BANK_CHG] = {AB5500_ADDR_CHG, "CHG"}, + [AB5500_BANK_FG_BATTCOM_ACC] = { + AB5500_ADDR_FG_BATTCOM_ACC, "FG_BATCOM_ACC"}, + [AB5500_BANK_USB] = {AB5500_ADDR_USB, "USB"}, + [AB5500_BANK_IT] = {AB5500_ADDR_IT, "IT"}, + [AB5500_BANK_VIBRA] = {AB5500_ADDR_VIBRA, "VIBRA"}, + [AB5500_BANK_AUDIO_HEADSETUSB] = { + AB5500_ADDR_AUDIO_HEADSETUSB, "AUDIO_HEADSETUSB"}, +}; + +/** + * struct ab5500_reg_range + * @first: the first address of the range + * @last: the last address of the range + * @perm: access permissions for the range + */ +struct ab5500_reg_range { + u8 first; + u8 last; + u8 perm; +}; + +/** + * struct ab5500_i2c_ranges + * @count: the number of ranges in the list + * @range: the list of register ranges + */ +struct ab5500_i2c_ranges { + u8 nranges; + u8 bankid; + const struct ab5500_reg_range *range; +}; + +/** + * struct ab5500_i2c_banks + * @count: the number of ranges in the list + * @range: the list of register ranges + */ +struct ab5500_i2c_banks { + u8 nbanks; + const struct ab5500_i2c_ranges *bank; +}; + +/* + * Permissible register ranges for reading and writing per device and bank. + * + * The ranges must be listed in increasing address order, and no overlaps are + * allowed. It is assumed that write permission implies read permission + * (i.e. only RO and RW permissions should be used). Ranges with write + * permission must not be split up. + */ + +#define NO_RANGE {.count = 0, .range = NULL,} +static struct ab5500_i2c_banks ab5500_bank_ranges[AB5500_NUM_DEVICES] = { + [AB5500_DEVID_USB] = { + .nbanks = 1, + .bank = (struct ab5500_i2c_ranges []) { + { + .bankid = AB5500_BANK_USB, + .nranges = 12, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x01, + .last = 0x01, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x80, + .last = 0x83, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x87, + .last = 0x8A, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x8B, + .last = 0x8B, + .perm = AB5500_PERM_RO, + }, + { + .first = 0x91, + .last = 0x92, + .perm = AB5500_PERM_RO, + }, + { + .first = 0x93, + .last = 0x93, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x94, + .last = 0x94, + .perm = AB5500_PERM_RO, + }, + { + .first = 0xA8, + .last = 0xB0, + .perm = AB5500_PERM_RO, + }, + { + .first = 0xB2, + .last = 0xB2, + .perm = AB5500_PERM_RO, + }, + { + .first = 0xB4, + .last = 0xBC, + .perm = AB5500_PERM_RO, + }, + { + .first = 0xBF, + .last = 0xBF, + .perm = AB5500_PERM_RO, + }, + { + .first = 0xC1, + .last = 0xC5, + .perm = AB5500_PERM_RO, + }, + }, + }, + }, + }, + [AB5500_DEVID_ADC] = { + .nbanks = 1, + .bank = (struct ab5500_i2c_ranges []) { + { + .bankid = AB5500_BANK_ADC, + .nranges = 6, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x1F, + .last = 0x22, + .perm = AB5500_PERM_RO, + }, + { + .first = 0x23, + .last = 0x24, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x26, + .last = 0x2D, + .perm = AB5500_PERM_RO, + }, + { + .first = 0x2F, + .last = 0x34, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x37, + .last = 0x57, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x58, + .last = 0x58, + .perm = AB5500_PERM_RO, + }, + }, + }, + }, + }, + [AB5500_DEVID_LEDS] = { + .nbanks = 1, + .bank = (struct ab5500_i2c_ranges []) { + { + .bankid = AB5500_BANK_LED, + .nranges = 1, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x00, + .last = 0x0C, + .perm = AB5500_PERM_RW, + }, + }, + }, + }, + }, + [AB5500_DEVID_VIDEO] = { + .nbanks = 1, + .bank = (struct ab5500_i2c_ranges []) { + { + .bankid = AB5500_BANK_VDENC, + .nranges = 12, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x00, + .last = 0x08, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x09, + .last = 0x09, + .perm = AB5500_PERM_RO, + }, + { + .first = 0x0A, + .last = 0x12, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x15, + .last = 0x19, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x1B, + .last = 0x21, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x27, + .last = 0x2C, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x41, + .last = 0x41, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x45, + .last = 0x5B, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x5D, + .last = 0x5D, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x69, + .last = 0x69, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x6C, + .last = 0x6D, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x80, + .last = 0x81, + .perm = AB5500_PERM_RW, + }, + }, + }, + }, + }, + [AB5500_DEVID_REGULATORS] = { + .nbanks = 2, + .bank = (struct ab5500_i2c_ranges []) { + { + .bankid = AB5500_BANK_STARTUP, + .nranges = 12, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x00, + .last = 0x01, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x1F, + .last = 0x1F, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x2E, + .last = 0x2E, + .perm = AB5500_PERM_RO, + }, + { + .first = 0x2F, + .last = 0x30, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x50, + .last = 0x51, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x60, + .last = 0x61, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x66, + .last = 0x8A, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x8C, + .last = 0x96, + .perm = AB5500_PERM_RW, + }, + { + .first = 0xAA, + .last = 0xB4, + .perm = AB5500_PERM_RW, + }, + { + .first = 0xB7, + .last = 0xBF, + .perm = AB5500_PERM_RW, + }, + { + .first = 0xC1, + .last = 0xCA, + .perm = AB5500_PERM_RW, + }, + { + .first = 0xD3, + .last = 0xE0, + .perm = AB5500_PERM_RW, + }, + }, + }, + { + .bankid = AB5500_BANK_SIM_USBSIM, + .nranges = 1, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x13, + .last = 0x19, + .perm = AB5500_PERM_RW, + }, + }, + }, + }, + }, + [AB5500_DEVID_SIM] = { + .nbanks = 1, + .bank = (struct ab5500_i2c_ranges []) { + { + .bankid = AB5500_BANK_SIM_USBSIM, + .nranges = 1, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x13, + .last = 0x19, + .perm = AB5500_PERM_RW, + }, + }, + }, + }, + }, + [AB5500_DEVID_RTC] = { + .nbanks = 1, + .bank = (struct ab5500_i2c_ranges []) { + { + .bankid = AB5500_BANK_RTC, + .nranges = 2, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x00, + .last = 0x04, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x06, + .last = 0x0C, + .perm = AB5500_PERM_RW, + }, + }, + }, + }, + }, + [AB5500_DEVID_CHARGER] = { + .nbanks = 1, + .bank = (struct ab5500_i2c_ranges []) { + { + .bankid = AB5500_BANK_CHG, + .nranges = 2, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x11, + .last = 0x11, + .perm = AB5500_PERM_RO, + }, + { + .first = 0x12, + .last = 0x1B, + .perm = AB5500_PERM_RW, + }, + }, + }, + }, + }, + [AB5500_DEVID_FUELGAUGE] = { + .nbanks = 1, + .bank = (struct ab5500_i2c_ranges []) { + { + .bankid = AB5500_BANK_FG_BATTCOM_ACC, + .nranges = 2, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x00, + .last = 0x0B, + .perm = AB5500_PERM_RO, + }, + { + .first = 0x0C, + .last = 0x10, + .perm = AB5500_PERM_RW, + }, + }, + }, + }, + }, + [AB5500_DEVID_VIBRATOR] = { + .nbanks = 1, + .bank = (struct ab5500_i2c_ranges []) { + { + .bankid = AB5500_BANK_VIBRA, + .nranges = 2, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x10, + .last = 0x13, + .perm = AB5500_PERM_RW, + }, + { + .first = 0xFE, + .last = 0xFE, + .perm = AB5500_PERM_RW, + }, + }, + }, + }, + }, + [AB5500_DEVID_CODEC] = { + .nbanks = 1, + .bank = (struct ab5500_i2c_ranges []) { + { + .bankid = AB5500_BANK_AUDIO_HEADSETUSB, + .nranges = 2, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x00, + .last = 0x48, + .perm = AB5500_PERM_RW, + }, + { + .first = 0xEB, + .last = 0xFB, + .perm = AB5500_PERM_RW, + }, + }, + }, + }, + }, + [AB5500_DEVID_POWER] = { + .nbanks = 2, + .bank = (struct ab5500_i2c_ranges []) { + { + .bankid = AB5500_BANK_STARTUP, + .nranges = 1, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x30, + .last = 0x30, + .perm = AB5500_PERM_RW, + }, + }, + }, + { + .bankid = AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP, + .nranges = 1, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x01, + .last = 0x01, + .perm = AB5500_PERM_RW, + }, + }, + }, + }, + }, +}; + +#define AB5500_IRQ(bank, bit) ((bank) * 8 + (bit)) + +/* I appologize for the resource names beeing a mix of upper case + * and lower case but I want them to be exact as the documentation */ +static struct mfd_cell ab5500_devs[AB5500_NUM_DEVICES] = { + [AB5500_DEVID_LEDS] = { + .name = "ab5500-leds", + .id = AB5500_DEVID_LEDS, + }, + [AB5500_DEVID_POWER] = { + .name = "ab5500-power", + .id = AB5500_DEVID_POWER, + }, + [AB5500_DEVID_REGULATORS] = { + .name = "ab5500-regulator", + .id = AB5500_DEVID_REGULATORS, + }, + [AB5500_DEVID_SIM] = { + .name = "ab5500-sim", + .id = AB5500_DEVID_SIM, + .num_resources = 1, + .resources = (struct resource[]) { + { + .name = "SIMOFF", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(2, 0), /*rising*/ + .end = AB5500_IRQ(2, 1), /*falling*/ + }, + }, + }, + [AB5500_DEVID_RTC] = { + .name = "ab5500-rtc", + .id = AB5500_DEVID_RTC, + .num_resources = 1, + .resources = (struct resource[]) { + { + .name = "RTC_Alarm", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(1, 7), + .end = AB5500_IRQ(1, 7), + } + }, + }, + [AB5500_DEVID_CHARGER] = { + .name = "ab5500-charger", + .id = AB5500_DEVID_CHARGER, + }, + [AB5500_DEVID_ADC] = { + .name = "ab5500-adc", + .id = AB5500_DEVID_ADC, + .num_resources = 10, + .resources = (struct resource[]) { + { + .name = "TRIGGER-0", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(0, 0), + .end = AB5500_IRQ(0, 0), + }, + { + .name = "TRIGGER-1", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(0, 1), + .end = AB5500_IRQ(0, 1), + }, + { + .name = "TRIGGER-2", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(0, 2), + .end = AB5500_IRQ(0, 2), + }, + { + .name = "TRIGGER-3", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(0, 3), + .end = AB5500_IRQ(0, 3), + }, + { + .name = "TRIGGER-4", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(0, 4), + .end = AB5500_IRQ(0, 4), + }, + { + .name = "TRIGGER-5", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(0, 5), + .end = AB5500_IRQ(0, 5), + }, + { + .name = "TRIGGER-6", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(0, 6), + .end = AB5500_IRQ(0, 6), + }, + { + .name = "TRIGGER-7", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(0, 7), + .end = AB5500_IRQ(0, 7), + }, + { + .name = "TRIGGER-VBAT", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(0, 8), + .end = AB5500_IRQ(0, 8), + }, + { + .name = "TRIGGER-VBAT-TXON", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(0, 9), + .end = AB5500_IRQ(0, 9), + }, + }, + }, + [AB5500_DEVID_FUELGAUGE] = { + .name = "ab5500-fuelgauge", + .id = AB5500_DEVID_FUELGAUGE, + .num_resources = 6, + .resources = (struct resource[]) { + { + .name = "Batt_attach", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(7, 5), + .end = AB5500_IRQ(7, 5), + }, + { + .name = "Batt_removal", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(7, 6), + .end = AB5500_IRQ(7, 6), + }, + { + .name = "UART_framing", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(7, 7), + .end = AB5500_IRQ(7, 7), + }, + { + .name = "UART_overrun", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(8, 0), + .end = AB5500_IRQ(8, 0), + }, + { + .name = "UART_Rdy_RX", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(8, 1), + .end = AB5500_IRQ(8, 1), + }, + { + .name = "UART_Rdy_TX", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(8, 2), + .end = AB5500_IRQ(8, 2), + }, + }, + }, + [AB5500_DEVID_VIBRATOR] = { + .name = "ab5500-vibrator", + .id = AB5500_DEVID_VIBRATOR, + }, + [AB5500_DEVID_CODEC] = { + .name = "ab5500-codec", + .id = AB5500_DEVID_CODEC, + .num_resources = 3, + .resources = (struct resource[]) { + { + .name = "audio_spkr1_ovc", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(9, 5), + .end = AB5500_IRQ(9, 5), + }, + { + .name = "audio_plllocked", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(9, 6), + .end = AB5500_IRQ(9, 6), + }, + { + .name = "audio_spkr2_ovc", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(17, 4), + .end = AB5500_IRQ(17, 4), + }, + }, + }, + [AB5500_DEVID_USB] = { + .name = "ab5500-usb", + .id = AB5500_DEVID_USB, + .num_resources = 36, + .resources = (struct resource[]) { + { + .name = "Link_Update", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(22, 1), + .end = AB5500_IRQ(22, 1), + }, + { + .name = "DCIO", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(8, 3), + .end = AB5500_IRQ(8, 4), + }, + { + .name = "VBUS_R", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(8, 5), + .end = AB5500_IRQ(8, 5), + }, + { + .name = "VBUS_F", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(8, 6), + .end = AB5500_IRQ(8, 6), + }, + { + .name = "CHGstate_10_PCVBUSchg", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(8, 7), + .end = AB5500_IRQ(8, 7), + }, + { + .name = "DCIOreverse_ovc", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(9, 0), + .end = AB5500_IRQ(9, 0), + }, + { + .name = "USBCharDetDone", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(9, 1), + .end = AB5500_IRQ(9, 1), + }, + { + .name = "DCIO_no_limit", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(9, 2), + .end = AB5500_IRQ(9, 2), + }, + { + .name = "USB_suspend", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(9, 3), + .end = AB5500_IRQ(9, 3), + }, + { + .name = "DCIOreverse_fwdcurrent", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(9, 4), + .end = AB5500_IRQ(9, 4), + }, + { + .name = "Vbus_Imeasmax_change", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(9, 5), + .end = AB5500_IRQ(9, 6), + }, + { + .name = "OVV", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(14, 5), + .end = AB5500_IRQ(14, 5), + }, + { + .name = "USBcharging_NOTok", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(15, 3), + .end = AB5500_IRQ(15, 3), + }, + { + .name = "usb_adp_sensoroff", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(15, 6), + .end = AB5500_IRQ(15, 6), + }, + { + .name = "usb_adp_probeplug", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(15, 7), + .end = AB5500_IRQ(15, 7), + }, + { + .name = "usb_adp_sinkerror", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(16, 0), + .end = AB5500_IRQ(16, 6), + }, + { + .name = "usb_adp_sourceerror", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(16, 1), + .end = AB5500_IRQ(16, 1), + }, + { + .name = "usb_idgnd_r", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(16, 2), + .end = AB5500_IRQ(16, 2), + }, + { + .name = "usb_idgnd_f", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(16, 3), + .end = AB5500_IRQ(16, 3), + }, + { + .name = "usb_iddetR1", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(16, 4), + .end = AB5500_IRQ(16, 5), + }, + { + .name = "usb_iddetR2", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(16, 6), + .end = AB5500_IRQ(16, 7), + }, + { + .name = "usb_iddetR3", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(17, 0), + .end = AB5500_IRQ(17, 1), + }, + { + .name = "usb_iddetR4", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(17, 2), + .end = AB5500_IRQ(17, 3), + }, + { + .name = "CharTempWindowOk", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(17, 7), + .end = AB5500_IRQ(18, 0), + }, + { + .name = "USB_SprDetect", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(18, 1), + .end = AB5500_IRQ(18, 1), + }, + { + .name = "usb_adp_probe_unplug", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(18, 2), + .end = AB5500_IRQ(18, 2), + }, + { + .name = "VBUSChDrop", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(18, 3), + .end = AB5500_IRQ(18, 4), + }, + { + .name = "dcio_char_rec_done", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(18, 5), + .end = AB5500_IRQ(18, 5), + }, + { + .name = "Charging_stopped_by_temp", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(18, 6), + .end = AB5500_IRQ(18, 6), + }, + { + .name = "CHGstate_11_SafeModeVBUS", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(21, 1), + .end = AB5500_IRQ(21, 2), + }, + { + .name = "CHGstate_12_comletedVBUS", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(21, 2), + .end = AB5500_IRQ(21, 2), + }, + { + .name = "CHGstate_13_completedVBUS", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(21, 3), + .end = AB5500_IRQ(21, 3), + }, + { + .name = "CHGstate_14_FullChgDCIO", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(21, 4), + .end = AB5500_IRQ(21, 4), + }, + { + .name = "CHGstate_15_SafeModeDCIO", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(21, 5), + .end = AB5500_IRQ(21, 5), + }, + { + .name = "CHGstate_16_OFFsuspendDCIO", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(21, 6), + .end = AB5500_IRQ(21, 6), + }, + { + .name = "CHGstate_17_completedDCIO", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(21, 7), + .end = AB5500_IRQ(21, 7), + }, + }, + }, + [AB5500_DEVID_OTP] = { + .name = "ab5500-otp", + .id = AB5500_DEVID_OTP, + }, + [AB5500_DEVID_VIDEO] = { + .name = "ab5500-video", + .id = AB5500_DEVID_VIDEO, + .num_resources = 1, + .resources = (struct resource[]) { + { + .name = "plugTVdet", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(22, 2), + .end = AB5500_IRQ(22, 2), + }, + }, + }, + [AB5500_DEVID_DBIECI] = { + .name = "ab5500-dbieci", + .id = AB5500_DEVID_DBIECI, + .num_resources = 10, + .resources = (struct resource[]) { + { + .name = "COLL", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(14, 0), + .end = AB5500_IRQ(14, 0), + }, + { + .name = "RESERR", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(14, 1), + .end = AB5500_IRQ(14, 1), + }, + { + .name = "FRAERR", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(14, 2), + .end = AB5500_IRQ(14, 2), + }, + { + .name = "COMERR", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(14, 3), + .end = AB5500_IRQ(14, 3), + }, + { + .name = "BSI_indicator", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(14, 4), + .end = AB5500_IRQ(14, 4), + }, + { + .name = "SPDSET", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(14, 6), + .end = AB5500_IRQ(14, 6), + }, + { + .name = "DSENT", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(14, 7), + .end = AB5500_IRQ(14, 7), + }, + { + .name = "DREC", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(15, 0), + .end = AB5500_IRQ(15, 0), + }, + { + .name = "ACCINT", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(15, 1), + .end = AB5500_IRQ(15, 1), + }, + { + .name = "NOPINT", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(15, 2), + .end = AB5500_IRQ(15, 2), + }, + }, + }, + [AB5500_DEVID_ONSWA] = { + .name = "ab5500-onswa", + .id = AB5500_DEVID_ONSWA, + .num_resources = 2, + .resources = (struct resource[]) { + { + .name = "ONSWAn_rising", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(1, 3), + .end = AB5500_IRQ(1, 3), + }, + { + .name = "ONSWAn_falling", + .flags = IORESOURCE_IRQ, + .start = AB5500_IRQ(1, 4), + .end = AB5500_IRQ(1, 4), + }, + }, + }, +}; + +/* + * Functionality for getting/setting register values. + */ +static int get_register_interruptible(struct ab5500 *ab, u8 bank, u8 reg, + u8 *value) +{ + int err; + + if (bank >= AB5500_NUM_BANKS) + return -EINVAL; + + err = mutex_lock_interruptible(&ab->access_mutex); + if (err) + return err; + err = db5500_prcmu_abb_read(bankinfo[bank].slave_addr, reg, value, 1); + + mutex_unlock(&ab->access_mutex); + return err; +} + +static int get_register_page_interruptible(struct ab5500 *ab, u8 bank, + u8 first_reg, u8 *regvals, u8 numregs) +{ + int err; + + if (bank >= AB5500_NUM_BANKS) + return -EINVAL; + + err = mutex_lock_interruptible(&ab->access_mutex); + if (err) + return err; + + while (numregs) { + /* The hardware limit for get page is 4 */ + u8 curnum = min_t(u8, numregs, 4u); + + err = db5500_prcmu_abb_read(bankinfo[bank].slave_addr, + first_reg, regvals, curnum); + if (err) + goto out; + + numregs -= curnum; + first_reg += curnum; + regvals += curnum; + } + +out: + mutex_unlock(&ab->access_mutex); + return err; +} + +static int mask_and_set_register_interruptible(struct ab5500 *ab, u8 bank, + u8 reg, u8 bitmask, u8 bitvalues) +{ + int err = 0; + + if (bank >= AB5500_NUM_BANKS) + return -EINVAL; + + if (bitmask) { + u8 buf; + + err = mutex_lock_interruptible(&ab->access_mutex); + if (err) + return err; + + if (bitmask == 0xFF) /* No need to read in this case. */ + buf = bitvalues; + else { /* Read and modify the register value. */ + err = db5500_prcmu_abb_read(bankinfo[bank].slave_addr, + reg, &buf, 1); + if (err) + return err; + + buf = ((~bitmask & buf) | (bitmask & bitvalues)); + } + /* Write the new value. */ + err = db5500_prcmu_abb_write(bankinfo[bank].slave_addr, reg, + &buf, 1); + + mutex_unlock(&ab->access_mutex); + } + return err; +} + +static int +set_register_interruptible(struct ab5500 *ab, u8 bank, u8 reg, u8 value) +{ + return mask_and_set_register_interruptible(ab, bank, reg, 0xff, value); +} + +/* + * Read/write permission checking functions. + */ +static const struct ab5500_i2c_ranges *get_bankref(u8 devid, u8 bank) +{ + u8 i; + + if (devid < AB5500_NUM_DEVICES) { + for (i = 0; i < ab5500_bank_ranges[devid].nbanks; i++) { + if (ab5500_bank_ranges[devid].bank[i].bankid == bank) + return &ab5500_bank_ranges[devid].bank[i]; + } + } + return NULL; +} + +static bool page_write_allowed(u8 devid, u8 bank, u8 first_reg, u8 last_reg) +{ + u8 i; /* range loop index */ + const struct ab5500_i2c_ranges *bankref; + + bankref = get_bankref(devid, bank); + if (bankref == NULL || last_reg < first_reg) + return false; + + for (i = 0; i < bankref->nranges; i++) { + if (first_reg < bankref->range[i].first) + break; + if ((last_reg <= bankref->range[i].last) && + (bankref->range[i].perm & AB5500_PERM_WR)) + return true; + } + return false; +} + +static bool reg_write_allowed(u8 devid, u8 bank, u8 reg) +{ + return page_write_allowed(devid, bank, reg, reg); +} + +static bool page_read_allowed(u8 devid, u8 bank, u8 first_reg, u8 last_reg) +{ + u8 i; + const struct ab5500_i2c_ranges *bankref; + + bankref = get_bankref(devid, bank); + if (bankref == NULL || last_reg < first_reg) + return false; + + + /* Find the range (if it exists in the list) that includes first_reg. */ + for (i = 0; i < bankref->nranges; i++) { + if (first_reg < bankref->range[i].first) + return false; + if (first_reg <= bankref->range[i].last) + break; + } + /* Make sure that the entire range up to and including last_reg is + * readable. This may span several of the ranges in the list. + */ + while ((i < bankref->nranges) && + (bankref->range[i].perm & AB5500_PERM_RD)) { + if (last_reg <= bankref->range[i].last) + return true; + if ((++i >= bankref->nranges) || + (bankref->range[i].first != + (bankref->range[i - 1].last + 1))) { + break; + } + } + return false; +} + +static bool reg_read_allowed(u8 devid, u8 bank, u8 reg) +{ + return page_read_allowed(devid, bank, reg, reg); +} + + +/* + * The exported register access functionality. + */ +static int ab5500_get_chip_id(struct device *dev) +{ + struct ab5500 *ab = dev_get_drvdata(dev->parent); + + return (int)ab->chip_id; +} + +static int ab5500_mask_and_set_register_interruptible(struct device *dev, + u8 bank, u8 reg, u8 bitmask, u8 bitvalues) +{ + struct ab5500 *ab; + struct platform_device *pdev = to_platform_device(dev); + + if ((AB5500_NUM_BANKS <= bank) || + !reg_write_allowed(pdev->id, bank, reg)) + return -EINVAL; + + ab = dev_get_drvdata(dev->parent); + return mask_and_set_register_interruptible(ab, bank, reg, + bitmask, bitvalues); +} + +static int ab5500_set_register_interruptible(struct device *dev, u8 bank, + u8 reg, u8 value) +{ + return ab5500_mask_and_set_register_interruptible(dev, bank, reg, 0xFF, + value); +} + +static int ab5500_get_register_interruptible(struct device *dev, u8 bank, + u8 reg, u8 *value) +{ + struct ab5500 *ab; + struct platform_device *pdev = to_platform_device(dev); + + if ((AB5500_NUM_BANKS <= bank) || + !reg_read_allowed(pdev->id, bank, reg)) + return -EINVAL; + + ab = dev_get_drvdata(dev->parent); + return get_register_interruptible(ab, bank, reg, value); +} + +static int ab5500_get_register_page_interruptible(struct device *dev, u8 bank, + u8 first_reg, u8 *regvals, u8 numregs) +{ + struct ab5500 *ab; + struct platform_device *pdev = to_platform_device(dev); + + if ((AB5500_NUM_BANKS <= bank) || + !page_read_allowed(pdev->id, bank, + first_reg, (first_reg + numregs - 1))) + return -EINVAL; + + ab = dev_get_drvdata(dev->parent); + return get_register_page_interruptible(ab, bank, first_reg, regvals, + numregs); +} + +static int +ab5500_event_registers_startup_state_get(struct device *dev, u8 *event) +{ + struct ab5500 *ab; + + ab = dev_get_drvdata(dev->parent); + if (!ab->startup_events_read) + return -EAGAIN; /* Try again later */ + + memcpy(event, ab->startup_events, AB5500_NUM_EVENT_REG); + return 0; +} + +static struct abx500_ops ab5500_ops = { + .get_chip_id = ab5500_get_chip_id, + .get_register = ab5500_get_register_interruptible, + .set_register = ab5500_set_register_interruptible, + .get_register_page = ab5500_get_register_page_interruptible, + .set_register_page = NULL, + .mask_and_set_register = ab5500_mask_and_set_register_interruptible, + .event_registers_startup_state_get = + ab5500_event_registers_startup_state_get, + .startup_irq_enabled = NULL, +}; + +#ifdef CONFIG_DEBUG_FS +static struct ab5500_i2c_ranges ab5500_reg_ranges[AB5500_NUM_BANKS] = { + [AB5500_BANK_LED] = { + .bankid = AB5500_BANK_LED, + .nranges = 1, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x00, + .last = 0x0C, + .perm = AB5500_PERM_RW, + }, + }, + }, + [AB5500_BANK_ADC] = { + .bankid = AB5500_BANK_ADC, + .nranges = 6, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x1F, + .last = 0x22, + .perm = AB5500_PERM_RO, + }, + { + .first = 0x23, + .last = 0x24, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x26, + .last = 0x2D, + .perm = AB5500_PERM_RO, + }, + { + .first = 0x2F, + .last = 0x34, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x37, + .last = 0x57, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x58, + .last = 0x58, + .perm = AB5500_PERM_RO, + }, + }, + }, + [AB5500_BANK_RTC] = { + .bankid = AB5500_BANK_RTC, + .nranges = 2, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x00, + .last = 0x04, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x06, + .last = 0x0C, + .perm = AB5500_PERM_RW, + }, + }, + }, + [AB5500_BANK_STARTUP] = { + .bankid = AB5500_BANK_STARTUP, + .nranges = 12, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x00, + .last = 0x01, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x1F, + .last = 0x1F, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x2E, + .last = 0x2E, + .perm = AB5500_PERM_RO, + }, + { + .first = 0x2F, + .last = 0x30, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x50, + .last = 0x51, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x60, + .last = 0x61, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x66, + .last = 0x8A, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x8C, + .last = 0x96, + .perm = AB5500_PERM_RW, + }, + { + .first = 0xAA, + .last = 0xB4, + .perm = AB5500_PERM_RW, + }, + { + .first = 0xB7, + .last = 0xBF, + .perm = AB5500_PERM_RW, + }, + { + .first = 0xC1, + .last = 0xCA, + .perm = AB5500_PERM_RW, + }, + { + .first = 0xD3, + .last = 0xE0, + .perm = AB5500_PERM_RW, + }, + }, + }, + [AB5500_BANK_DBI_ECI] = { + .bankid = AB5500_BANK_DBI_ECI, + .nranges = 3, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x00, + .last = 0x07, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x10, + .last = 0x10, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x13, + .last = 0x13, + .perm = AB5500_PERM_RW, + }, + }, + }, + [AB5500_BANK_CHG] = { + .bankid = AB5500_BANK_CHG, + .nranges = 2, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x11, + .last = 0x11, + .perm = AB5500_PERM_RO, + }, + { + .first = 0x12, + .last = 0x1B, + .perm = AB5500_PERM_RW, + }, + }, + }, + [AB5500_BANK_FG_BATTCOM_ACC] = { + .bankid = AB5500_BANK_FG_BATTCOM_ACC, + .nranges = 2, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x00, + .last = 0x0B, + .perm = AB5500_PERM_RO, + }, + { + .first = 0x0C, + .last = 0x10, + .perm = AB5500_PERM_RW, + }, + }, + }, + [AB5500_BANK_USB] = { + .bankid = AB5500_BANK_USB, + .nranges = 12, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x01, + .last = 0x01, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x80, + .last = 0x83, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x87, + .last = 0x8A, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x8B, + .last = 0x8B, + .perm = AB5500_PERM_RO, + }, + { + .first = 0x91, + .last = 0x92, + .perm = AB5500_PERM_RO, + }, + { + .first = 0x93, + .last = 0x93, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x94, + .last = 0x94, + .perm = AB5500_PERM_RO, + }, + { + .first = 0xA8, + .last = 0xB0, + .perm = AB5500_PERM_RO, + }, + { + .first = 0xB2, + .last = 0xB2, + .perm = AB5500_PERM_RO, + }, + { + .first = 0xB4, + .last = 0xBC, + .perm = AB5500_PERM_RO, + }, + { + .first = 0xBF, + .last = 0xBF, + .perm = AB5500_PERM_RO, + }, + { + .first = 0xC1, + .last = 0xC5, + .perm = AB5500_PERM_RO, + }, + }, + }, + [AB5500_BANK_IT] = { + .bankid = AB5500_BANK_IT, + .nranges = 4, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x00, + .last = 0x02, + .perm = AB5500_PERM_RO, + }, + { + .first = 0x20, + .last = 0x36, + .perm = AB5500_PERM_RO, + }, + { + .first = 0x40, + .last = 0x56, + .perm = AB5500_PERM_RO, + }, + { + .first = 0x60, + .last = 0x76, + .perm = AB5500_PERM_RO, + }, + }, + }, + [AB5500_BANK_VDDDIG_IO_I2C_CLK_TST] = { + .bankid = AB5500_BANK_VDDDIG_IO_I2C_CLK_TST, + .nranges = 7, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x02, + .last = 0x02, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x12, + .last = 0x12, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x30, + .last = 0x34, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x40, + .last = 0x44, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x50, + .last = 0x54, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x60, + .last = 0x64, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x70, + .last = 0x74, + .perm = AB5500_PERM_RW, + }, + }, + }, + [AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP] = { + .bankid = AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP, + .nranges = 13, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x01, + .last = 0x01, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x02, + .last = 0x02, + .perm = AB5500_PERM_RO, + }, + { + .first = 0x0D, + .last = 0x0F, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x1C, + .last = 0x1C, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x1E, + .last = 0x1E, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x20, + .last = 0x21, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x25, + .last = 0x25, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x28, + .last = 0x2A, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x30, + .last = 0x33, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x40, + .last = 0x43, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x50, + .last = 0x53, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x60, + .last = 0x63, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x70, + .last = 0x73, + .perm = AB5500_PERM_RW, + }, + }, + }, + [AB5500_BANK_VIBRA] = { + .bankid = AB5500_BANK_VIBRA, + .nranges = 2, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x10, + .last = 0x13, + .perm = AB5500_PERM_RW, + }, + { + .first = 0xFE, + .last = 0xFE, + .perm = AB5500_PERM_RW, + }, + }, + }, + [AB5500_BANK_AUDIO_HEADSETUSB] = { + .bankid = AB5500_BANK_AUDIO_HEADSETUSB, + .nranges = 2, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x00, + .last = 0x48, + .perm = AB5500_PERM_RW, + }, + { + .first = 0xEB, + .last = 0xFB, + .perm = AB5500_PERM_RW, + }, + }, + }, + [AB5500_BANK_SIM_USBSIM] = { + .bankid = AB5500_BANK_SIM_USBSIM, + .nranges = 1, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x13, + .last = 0x19, + .perm = AB5500_PERM_RW, + }, + }, + }, + [AB5500_BANK_VDENC] = { + .bankid = AB5500_BANK_VDENC, + .nranges = 12, + .range = (struct ab5500_reg_range[]) { + { + .first = 0x00, + .last = 0x08, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x09, + .last = 0x09, + .perm = AB5500_PERM_RO, + }, + { + .first = 0x0A, + .last = 0x12, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x15, + .last = 0x19, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x1B, + .last = 0x21, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x27, + .last = 0x2C, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x41, + .last = 0x41, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x45, + .last = 0x5B, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x5D, + .last = 0x5D, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x69, + .last = 0x69, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x6C, + .last = 0x6D, + .perm = AB5500_PERM_RW, + }, + { + .first = 0x80, + .last = 0x81, + .perm = AB5500_PERM_RW, + }, + }, + }, +}; +static int ab5500_registers_print(struct seq_file *s, void *p) +{ + struct ab5500 *ab = s->private; + unsigned int i; + u8 bank = (u8)ab->debug_bank; + + seq_printf(s, "ab5500 register values:\n"); + for (bank = 0; bank < AB5500_NUM_BANKS; bank++) { + seq_printf(s, " bank %u, %s (0x%x):\n", bank, + bankinfo[bank].name, + bankinfo[bank].slave_addr); + for (i = 0; i < ab5500_reg_ranges[bank].nranges; i++) { + u8 reg; + int err; + + for (reg = ab5500_reg_ranges[bank].range[i].first; + reg <= ab5500_reg_ranges[bank].range[i].last; + reg++) { + u8 value; + + err = get_register_interruptible(ab, bank, reg, + &value); + if (err < 0) { + dev_err(ab->dev, "get_reg failed %d" + "bank 0x%x reg 0x%x\n", + err, bank, reg); + return err; + } + + err = seq_printf(s, "[%d/0x%02X]: 0x%02X\n", + bank, reg, value); + if (err < 0) { + dev_err(ab->dev, + "seq_printf overflow\n"); + /* + * Error is not returned here since + * the output is wanted in any case + */ + return 0; + } + } + } + } + return 0; +} + +static int ab5500_registers_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab5500_registers_print, inode->i_private); +} + +static const struct file_operations ab5500_registers_fops = { + .open = ab5500_registers_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab5500_bank_print(struct seq_file *s, void *p) +{ + struct ab5500 *ab = s->private; + + seq_printf(s, "%d\n", ab->debug_bank); + return 0; +} + +static int ab5500_bank_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab5500_bank_print, inode->i_private); +} + +static ssize_t ab5500_bank_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ab5500 *ab = ((struct seq_file *)(file->private_data))->private; + char buf[32]; + int buf_size; + unsigned long user_bank; + int err; + + /* Get userspace string and assure termination */ + buf_size = min(count, (sizeof(buf) - 1)); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + buf[buf_size] = 0; + + err = strict_strtoul(buf, 0, &user_bank); + if (err) + return -EINVAL; + + if (user_bank >= AB5500_NUM_BANKS) { + dev_err(ab->dev, + "debugfs error input > number of banks\n"); + return -EINVAL; + } + + ab->debug_bank = user_bank; + + return buf_size; +} + +static int ab5500_address_print(struct seq_file *s, void *p) +{ + struct ab5500 *ab = s->private; + + seq_printf(s, "0x%02X\n", ab->debug_address); + return 0; +} + +static int ab5500_address_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab5500_address_print, inode->i_private); +} + +static ssize_t ab5500_address_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ab5500 *ab = ((struct seq_file *)(file->private_data))->private; + char buf[32]; + int buf_size; + unsigned long user_address; + int err; + + /* Get userspace string and assure termination */ + buf_size = min(count, (sizeof(buf) - 1)); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + buf[buf_size] = 0; + + err = strict_strtoul(buf, 0, &user_address); + if (err) + return -EINVAL; + if (user_address > 0xff) { + dev_err(ab->dev, + "debugfs error input > 0xff\n"); + return -EINVAL; + } + ab->debug_address = user_address; + return buf_size; +} + +static int ab5500_val_print(struct seq_file *s, void *p) +{ + struct ab5500 *ab = s->private; + int err; + u8 regvalue; + + err = get_register_interruptible(ab, (u8)ab->debug_bank, + (u8)ab->debug_address, ®value); + if (err) { + dev_err(ab->dev, "get_reg failed %d, bank 0x%x" + ", reg 0x%x\n", err, ab->debug_bank, + ab->debug_address); + return -EINVAL; + } + seq_printf(s, "0x%02X\n", regvalue); + + return 0; +} + +static int ab5500_val_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab5500_val_print, inode->i_private); +} + +static ssize_t ab5500_val_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ab5500 *ab = ((struct seq_file *)(file->private_data))->private; + char buf[32]; + int buf_size; + unsigned long user_val; + int err; + u8 regvalue; + + /* Get userspace string and assure termination */ + buf_size = min(count, (sizeof(buf)-1)); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + buf[buf_size] = 0; + + err = strict_strtoul(buf, 0, &user_val); + if (err) + return -EINVAL; + if (user_val > 0xff) { + dev_err(ab->dev, + "debugfs error input > 0xff\n"); + return -EINVAL; + } + err = mask_and_set_register_interruptible( + ab, (u8)ab->debug_bank, + (u8)ab->debug_address, 0xFF, (u8)user_val); + if (err) + return -EINVAL; + + get_register_interruptible(ab, (u8)ab->debug_bank, + (u8)ab->debug_address, ®value); + if (err) + return -EINVAL; + + return buf_size; +} + +static const struct file_operations ab5500_bank_fops = { + .open = ab5500_bank_open, + .write = ab5500_bank_write, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static const struct file_operations ab5500_address_fops = { + .open = ab5500_address_open, + .write = ab5500_address_write, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static const struct file_operations ab5500_val_fops = { + .open = ab5500_val_open, + .write = ab5500_val_write, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static struct dentry *ab5500_dir; +static struct dentry *ab5500_reg_file; +static struct dentry *ab5500_bank_file; +static struct dentry *ab5500_address_file; +static struct dentry *ab5500_val_file; + +static inline void ab5500_setup_debugfs(struct ab5500 *ab) +{ + ab->debug_bank = AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP; + ab->debug_address = AB5500_CHIP_ID; + + ab5500_dir = debugfs_create_dir("ab5500", NULL); + if (!ab5500_dir) + goto exit_no_debugfs; + + ab5500_reg_file = debugfs_create_file("all-bank-registers", + S_IRUGO, ab5500_dir, ab, &ab5500_registers_fops); + if (!ab5500_reg_file) + goto exit_destroy_dir; + + ab5500_bank_file = debugfs_create_file("register-bank", + (S_IRUGO | S_IWUGO), ab5500_dir, ab, &ab5500_bank_fops); + if (!ab5500_bank_file) + goto exit_destroy_reg; + + ab5500_address_file = debugfs_create_file("register-address", + (S_IRUGO | S_IWUGO), ab5500_dir, ab, &ab5500_address_fops); + if (!ab5500_address_file) + goto exit_destroy_bank; + + ab5500_val_file = debugfs_create_file("register-value", + (S_IRUGO | S_IWUGO), ab5500_dir, ab, &ab5500_val_fops); + if (!ab5500_val_file) + goto exit_destroy_address; + + return; + +exit_destroy_address: + debugfs_remove(ab5500_address_file); +exit_destroy_bank: + debugfs_remove(ab5500_bank_file); +exit_destroy_reg: + debugfs_remove(ab5500_reg_file); +exit_destroy_dir: + debugfs_remove(ab5500_dir); +exit_no_debugfs: + dev_err(ab->dev, "failed to create debugfs entries.\n"); + return; +} + +static inline void ab5500_remove_debugfs(void) +{ + debugfs_remove(ab5500_val_file); + debugfs_remove(ab5500_address_file); + debugfs_remove(ab5500_bank_file); + debugfs_remove(ab5500_reg_file); + debugfs_remove(ab5500_dir); +} + +#else /* !CONFIG_DEBUG_FS */ +static inline void ab5500_setup_debugfs(struct ab5500 *ab) +{ +} +static inline void ab5500_remove_debugfs(void) +{ +} +#endif + +/* + * ab5500_setup : Basic set-up, datastructure creation/destruction + * and I2C interface.This sets up a default config + * in the AB5500 chip so that it will work as expected. + * @ab : Pointer to ab5500 structure + * @settings : Pointer to struct abx500_init_settings + * @size : Size of init data + */ +static int __init ab5500_setup(struct ab5500 *ab, + struct abx500_init_settings *settings, unsigned int size) +{ + int err = 0; + int i; + + for (i = 0; i < size; i++) { + err = mask_and_set_register_interruptible(ab, + settings[i].bank, + settings[i].reg, + 0xFF, settings[i].setting); + if (err) + goto exit_no_setup; + + /* If event mask register update the event mask in ab5500 */ + if ((settings[i].bank == AB5500_BANK_IT) && + (AB5500_MASK_BASE <= settings[i].reg) && + (settings[i].reg <= AB5500_MASK_END)) { + ab->mask[settings[i].reg - AB5500_MASK_BASE] = + settings[i].setting; + } + } +exit_no_setup: + return err; +} + +struct ab_family_id { + u8 id; + char *name; +}; + +static const struct ab_family_id ids[] __initdata = { + /* AB5500 */ + { + .id = AB5500_1_0, + .name = "1.0" + }, + { + .id = AB5500_1_1, + .name = "1.1" + }, + /* Terminator */ + { + .id = 0x00, + } +}; + +static int __init ab5500_probe(struct platform_device *pdev) +{ + struct ab5500 *ab; + struct ab5500_platform_data *ab5500_plf_data = + pdev->dev.platform_data; + int err; + int i; + + ab = kzalloc(sizeof(struct ab5500), GFP_KERNEL); + if (!ab) { + dev_err(&pdev->dev, + "could not allocate ab5500 device\n"); + return -ENOMEM; + } + + /* Initialize data structure */ + mutex_init(&ab->access_mutex); + mutex_init(&ab->irq_lock); + ab->dev = &pdev->dev; + + platform_set_drvdata(pdev, ab); + + /* Read chip ID register */ + err = get_register_interruptible(ab, AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP, + AB5500_CHIP_ID, &ab->chip_id); + if (err) { + dev_err(&pdev->dev, "could not communicate with the analog " + "baseband chip\n"); + goto exit_no_detect; + } + + for (i = 0; ids[i].id != 0x0; i++) { + if (ids[i].id == ab->chip_id) { + snprintf(&ab->chip_name[0], sizeof(ab->chip_name) - 1, + "AB5500 %s", ids[i].name); + break; + } + } + if (ids[i].id == 0x0) { + dev_err(&pdev->dev, "unknown analog baseband chip id: 0x%x\n", + ab->chip_id); + dev_err(&pdev->dev, "driver not started!\n"); + goto exit_no_detect; + } + + /* Clear and mask all interrupts */ + for (i = 0; i < AB5500_NUM_IRQ_REGS; i++) { + u8 latchreg = AB5500_IT_LATCH0_REG + i; + u8 maskreg = AB5500_IT_MASK0_REG + i; + u8 val; + + get_register_interruptible(ab, AB5500_BANK_IT, latchreg, &val); + set_register_interruptible(ab, AB5500_BANK_IT, maskreg, 0xff); + ab->mask[i] = ab->oldmask[i] = 0xff; + } + + err = abx500_register_ops(&pdev->dev, &ab5500_ops); + if (err) { + dev_err(&pdev->dev, "ab5500_register ops error\n"); + goto exit_no_detect; + } + + /* Set up and register the platform devices. */ + for (i = 0; i < AB5500_NUM_DEVICES; i++) { + ab5500_devs[i].platform_data = ab5500_plf_data->dev_data[i]; + ab5500_devs[i].pdata_size = + sizeof(ab5500_plf_data->dev_data[i]); + } + + err = mfd_add_devices(&pdev->dev, 0, ab5500_devs, + ARRAY_SIZE(ab5500_devs), NULL, + ab5500_plf_data->irq.base); + if (err) { + dev_err(&pdev->dev, "ab5500_mfd_add_device error\n"); + goto exit_no_detect; + } + + err = ab5500_setup(ab, ab5500_plf_data->init_settings, + ab5500_plf_data->init_settings_sz); + if (err) { + dev_err(&pdev->dev, "ab5500_setup error\n"); + goto exit_no_detect; + } + + ab5500_setup_debugfs(ab); + + dev_info(&pdev->dev, "detected AB chip: %s\n", &ab->chip_name[0]); + return 0; + +exit_no_detect: + kfree(ab); + return err; +} + +static int __exit ab5500_remove(struct platform_device *pdev) +{ + struct ab5500 *ab = platform_get_drvdata(pdev); + + ab5500_remove_debugfs(); + mfd_remove_devices(&pdev->dev); + kfree(ab); + return 0; +} + +static struct platform_driver ab5500_driver = { + .driver = { + .name = "ab5500-core", + .owner = THIS_MODULE, + }, + .remove = __exit_p(ab5500_remove), +}; + +static int __init ab5500_core_init(void) +{ + return platform_driver_probe(&ab5500_driver, ab5500_probe); +} + +static void __exit ab5500_core_exit(void) +{ + platform_driver_unregister(&ab5500_driver); +} + +subsys_initcall(ab5500_core_init); +module_exit(ab5500_core_exit); + +MODULE_AUTHOR("Mattias Wallin "); +MODULE_DESCRIPTION("AB5500 core driver"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/mfd/ab5500/ab5500.h b/include/linux/mfd/ab5500/ab5500.h new file mode 100644 index 000000000000..a720051ae933 --- /dev/null +++ b/include/linux/mfd/ab5500/ab5500.h @@ -0,0 +1,140 @@ +/* + * Copyright (C) ST-Ericsson 2011 + * + * License Terms: GNU General Public License v2 + */ +#ifndef MFD_AB5500_H +#define MFD_AB5500_H + +#include + +enum ab5500_devid { + AB5500_DEVID_ADC, + AB5500_DEVID_LEDS, + AB5500_DEVID_POWER, + AB5500_DEVID_REGULATORS, + AB5500_DEVID_SIM, + AB5500_DEVID_RTC, + AB5500_DEVID_CHARGER, + AB5500_DEVID_FUELGAUGE, + AB5500_DEVID_VIBRATOR, + AB5500_DEVID_CODEC, + AB5500_DEVID_USB, + AB5500_DEVID_OTP, + AB5500_DEVID_VIDEO, + AB5500_DEVID_DBIECI, + AB5500_DEVID_ONSWA, + AB5500_NUM_DEVICES, +}; + +enum ab5500_banks { + AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP = 0, + AB5500_BANK_VDDDIG_IO_I2C_CLK_TST = 1, + AB5500_BANK_VDENC = 2, + AB5500_BANK_SIM_USBSIM = 3, + AB5500_BANK_LED = 4, + AB5500_BANK_ADC = 5, + AB5500_BANK_RTC = 6, + AB5500_BANK_STARTUP = 7, + AB5500_BANK_DBI_ECI = 8, + AB5500_BANK_CHG = 9, + AB5500_BANK_FG_BATTCOM_ACC = 10, + AB5500_BANK_USB = 11, + AB5500_BANK_IT = 12, + AB5500_BANK_VIBRA = 13, + AB5500_BANK_AUDIO_HEADSETUSB = 14, + AB5500_NUM_BANKS = 15, +}; + +enum ab5500_banks_addr { + AB5500_ADDR_VIT_IO_I2C_CLK_TST_OTP = 0x4A, + AB5500_ADDR_VDDDIG_IO_I2C_CLK_TST = 0x4B, + AB5500_ADDR_VDENC = 0x06, + AB5500_ADDR_SIM_USBSIM = 0x04, + AB5500_ADDR_LED = 0x10, + AB5500_ADDR_ADC = 0x0A, + AB5500_ADDR_RTC = 0x0F, + AB5500_ADDR_STARTUP = 0x03, + AB5500_ADDR_DBI_ECI = 0x07, + AB5500_ADDR_CHG = 0x0B, + AB5500_ADDR_FG_BATTCOM_ACC = 0x0C, + AB5500_ADDR_USB = 0x05, + AB5500_ADDR_IT = 0x0E, + AB5500_ADDR_VIBRA = 0x02, + AB5500_ADDR_AUDIO_HEADSETUSB = 0x0D, +}; + +/* + * Interrupt register offsets + * Bank : 0x0E + */ +#define AB5500_IT_SOURCE0_REG 0x20 +#define AB5500_IT_SOURCE1_REG 0x21 +#define AB5500_IT_SOURCE2_REG 0x22 +#define AB5500_IT_SOURCE3_REG 0x23 +#define AB5500_IT_SOURCE4_REG 0x24 +#define AB5500_IT_SOURCE5_REG 0x25 +#define AB5500_IT_SOURCE6_REG 0x26 +#define AB5500_IT_SOURCE7_REG 0x27 +#define AB5500_IT_SOURCE8_REG 0x28 +#define AB5500_IT_SOURCE9_REG 0x29 +#define AB5500_IT_SOURCE10_REG 0x2A +#define AB5500_IT_SOURCE11_REG 0x2B +#define AB5500_IT_SOURCE12_REG 0x2C +#define AB5500_IT_SOURCE13_REG 0x2D +#define AB5500_IT_SOURCE14_REG 0x2E +#define AB5500_IT_SOURCE15_REG 0x2F +#define AB5500_IT_SOURCE16_REG 0x30 +#define AB5500_IT_SOURCE17_REG 0x31 +#define AB5500_IT_SOURCE18_REG 0x32 +#define AB5500_IT_SOURCE19_REG 0x33 +#define AB5500_IT_SOURCE20_REG 0x34 +#define AB5500_IT_SOURCE21_REG 0x35 +#define AB5500_IT_SOURCE22_REG 0x36 +#define AB5500_IT_SOURCE23_REG 0x37 + +#define AB5500_NUM_IRQ_REGS 23 + +/** + * struct ab5500 + * @access_mutex: lock out concurrent accesses to the AB registers + * @dev: a pointer to the device struct for this chip driver + * @ab5500_irq: the analog baseband irq + * @irq_base: the platform configuration irq base for subdevices + * @chip_name: name of this chip variant + * @chip_id: 8 bit chip ID for this chip variant + * @irq_lock: a lock to protect the mask + * @abb_events: a local bit mask of the prcmu wakeup events + * @event_mask: a local copy of the mask event registers + * @last_event_mask: a copy of the last event_mask written to hardware + * @startup_events: a copy of the first reading of the event registers + * @startup_events_read: whether the first events have been read + */ +struct ab5500 { + struct mutex access_mutex; + struct device *dev; + unsigned int ab5500_irq; + unsigned int irq_base; + char chip_name[32]; + u8 chip_id; + struct mutex irq_lock; + u32 abb_events; + u8 mask[AB5500_NUM_IRQ_REGS]; + u8 oldmask[AB5500_NUM_IRQ_REGS]; + u8 startup_events[AB5500_NUM_IRQ_REGS]; + bool startup_events_read; +#ifdef CONFIG_DEBUG_FS + unsigned int debug_bank; + unsigned int debug_address; +#endif +}; + +struct ab5500_platform_data { + struct {unsigned int base; unsigned int count; } irq; + void *dev_data[AB5500_NUM_DEVICES]; + struct abx500_init_settings *init_settings; + unsigned int init_settings_sz; + bool pm_power_off; +}; + +#endif /* MFD_AB5500_H */ diff --git a/include/linux/mfd/abx500.h b/include/linux/mfd/abx500.h index 896b5e47f16e..79ec2c7b5fab 100644 --- a/include/linux/mfd/abx500.h +++ b/include/linux/mfd/abx500.h @@ -31,8 +31,8 @@ #define AB3100_R2B 0xc8 #define AB3550_P1A 0x10 #define AB5500_1_0 0x20 -#define AB5500_2_0 0x21 -#define AB5500_2_1 0x22 +#define AB5500_1_1 0x21 +#define AB5500_2_0 0x24 /* AB8500 CIDs*/ #define AB8500_CUTEARLY 0x00