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-rw-r--r--drivers/mfd/ab5500-core.c1439
1 files changed, 1439 insertions, 0 deletions
diff --git a/drivers/mfd/ab5500-core.c b/drivers/mfd/ab5500-core.c
new file mode 100644
index 00000000000..4175544b491
--- /dev/null
+++ b/drivers/mfd/ab5500-core.c
@@ -0,0 +1,1439 @@
+/*
+ * 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 <bengt.g.jonsson@stericsson.com>
+ * Author: Mattias Nilsson <mattias.i.nilsson@stericsson.com>
+ * Author: Mattias Wallin <mattias.wallin@stericsson.com>
+ * Author: Rickard Andersson <rickard.andersson@stericsson.com>
+ * Author: Karl Komierowski <karl.komierowski@stericsson.com>
+ * Author: Bibek Basu <bibek.basu@stericsson.com>
+ *
+ * TODO: Event handling with irq_chip. Waiting for PRCMU fw support.
+ */
+
+#include <linux/mutex.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/device.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/random.h>
+#include <linux/mfd/ab5500/ab5500.h>
+#include <linux/mfd/abx500.h>
+#include <linux/list.h>
+#include <linux/bitops.h>
+#include <linux/spinlock.h>
+#include <linux/mfd/core.h>
+#include <linux/version.h>
+#include <linux/mfd/db5500-prcmu.h>
+
+#include "ab5500-core.h"
+#include "ab5500-debugfs.h"
+
+#define AB5500_NUM_EVENT_REG 23
+#define AB5500_IT_LATCH0_REG 0x40
+#define AB5500_IT_MASK0_REG 0x60
+
+/*
+ * 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.
+ */
+int ab5500_get_register_interruptible_raw(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;
+}
+
+int ab5500_mask_and_set_register_interruptible_raw(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 ab5500_mask_and_set_register_interruptible_raw(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 ab5500_mask_and_set_register_interruptible_raw(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 ab5500_get_register_interruptible_raw(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,
+};
+
+/*
+ * 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 = ab5500_mask_and_set_register_interruptible_raw(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 = ab5500_get_register_interruptible_raw(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;
+
+ ab5500_get_register_interruptible_raw(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 <mattias.wallin@stericsson.com>");
+MODULE_DESCRIPTION("AB5500 core driver");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-29 16:23:48 +0000