mfd: New AB8500 driver
Add a new driver to support the AB8500 Power Management chip, replacing
the current AB4500. The new driver replaces the old one, instead of an
incremental modification, because this is a substantial overhaul
including:
- Split of the driver into -core and -spi portions, to allow another
interface layer to be added
- Addition of interrupt support
- Switch to MFD core API for handling subdevices
- Simplification of the APIs to remove a redundant block parameter
- Rename of the APIs and macros from ab4500_* to ab8500_*
- Rename of the files from ab4500* to ab8500*
- Change of the driver name from ab4500 to ab8500
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/include/linux/mfd/ab4500.h b/include/linux/mfd/ab4500.h
deleted file mode 100644
index a42a703..0000000
--- a/include/linux/mfd/ab4500.h
+++ /dev/null
@@ -1,262 +0,0 @@
-/*
- * Copyright (C) 2009 ST-Ericsson
- *
- * Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2, as
- * published by the Free Software Foundation.
- *
- * AB4500 device core funtions, for client access
- */
-#ifndef MFD_AB4500_H
-#define MFD_AB4500_H
-
-#include <linux/device.h>
-
-/*
- * AB4500 bank addresses
- */
-#define AB4500_SYS_CTRL1_BLOCK 0x1
-#define AB4500_SYS_CTRL2_BLOCK 0x2
-#define AB4500_REGU_CTRL1 0x3
-#define AB4500_REGU_CTRL2 0x4
-#define AB4500_USB 0x5
-#define AB4500_TVOUT 0x6
-#define AB4500_DBI 0x7
-#define AB4500_ECI_AV_ACC 0x8
-#define AB4500_RESERVED 0x9
-#define AB4500_GPADC 0xA
-#define AB4500_CHARGER 0xB
-#define AB4500_GAS_GAUGE 0xC
-#define AB4500_AUDIO 0xD
-#define AB4500_INTERRUPT 0xE
-#define AB4500_RTC 0xF
-#define AB4500_MISC 0x10
-#define AB4500_DEBUG 0x12
-#define AB4500_PROD_TEST 0x13
-#define AB4500_OTP_EMUL 0x15
-
-/*
- * System control 1 register offsets.
- * Bank = 0x01
- */
-#define AB4500_TURNON_STAT_REG 0x0100
-#define AB4500_RESET_STAT_REG 0x0101
-#define AB4500_PONKEY1_PRESS_STAT_REG 0x0102
-
-#define AB4500_FSM_STAT1_REG 0x0140
-#define AB4500_FSM_STAT2_REG 0x0141
-#define AB4500_SYSCLK_REQ_STAT_REG 0x0142
-#define AB4500_USB_STAT1_REG 0x0143
-#define AB4500_USB_STAT2_REG 0x0144
-#define AB4500_STATUS_SPARE1_REG 0x0145
-#define AB4500_STATUS_SPARE2_REG 0x0146
-
-#define AB4500_CTRL1_REG 0x0180
-#define AB4500_CTRL2_REG 0x0181
-
-/*
- * System control 2 register offsets.
- * bank = 0x02
- */
-#define AB4500_CTRL3_REG 0x0200
-#define AB4500_MAIN_WDOG_CTRL_REG 0x0201
-#define AB4500_MAIN_WDOG_TIMER_REG 0x0202
-#define AB4500_LOW_BAT_REG 0x0203
-#define AB4500_BATT_OK_REG 0x0204
-#define AB4500_SYSCLK_TIMER_REG 0x0205
-#define AB4500_SMPSCLK_CTRL_REG 0x0206
-#define AB4500_SMPSCLK_SEL1_REG 0x0207
-#define AB4500_SMPSCLK_SEL2_REG 0x0208
-#define AB4500_SMPSCLK_SEL3_REG 0x0209
-#define AB4500_SYSULPCLK_CONF_REG 0x020A
-#define AB4500_SYSULPCLK_CTRL1_REG 0x020B
-#define AB4500_SYSCLK_CTRL_REG 0x020C
-#define AB4500_SYSCLK_REQ1_VALID_REG 0x020D
-#define AB4500_SYSCLK_REQ_VALID_REG 0x020E
-#define AB4500_SYSCTRL_SPARE_REG 0x020F
-#define AB4500_PAD_CONF_REG 0x0210
-
-/*
- * Regu control1 register offsets
- * Bank = 0x03
- */
-#define AB4500_REGU_SERIAL_CTRL1_REG 0x0300
-#define AB4500_REGU_SERIAL_CTRL2_REG 0x0301
-#define AB4500_REGU_SERIAL_CTRL3_REG 0x0302
-#define AB4500_REGU_REQ_CTRL1_REG 0x0303
-#define AB4500_REGU_REQ_CTRL2_REG 0x0304
-#define AB4500_REGU_REQ_CTRL3_REG 0x0305
-#define AB4500_REGU_REQ_CTRL4_REG 0x0306
-#define AB4500_REGU_MISC1_REG 0x0380
-#define AB4500_REGU_OTGSUPPLY_CTRL_REG 0x0381
-#define AB4500_REGU_VUSB_CTRL_REG 0x0382
-#define AB4500_REGU_VAUDIO_SUPPLY_REG 0x0383
-#define AB4500_REGU_CTRL1_SPARE_REG 0x0384
-
-/*
- * Regu control2 Vmod register offsets
- */
-#define AB4500_REGU_VMOD_REGU_REG 0x0440
-#define AB4500_REGU_VMOD_SEL1_REG 0x0441
-#define AB4500_REGU_VMOD_SEL2_REG 0x0442
-#define AB4500_REGU_CTRL_DISCH_REG 0x0443
-#define AB4500_REGU_CTRL_DISCH2_REG 0x0444
-
-/*
- * USB/ULPI register offsets
- * Bank : 0x5
- */
-#define AB4500_USB_LINE_STAT_REG 0x0580
-#define AB4500_USB_LINE_CTRL1_REG 0x0581
-#define AB4500_USB_LINE_CTRL2_REG 0x0582
-#define AB4500_USB_LINE_CTRL3_REG 0x0583
-#define AB4500_USB_LINE_CTRL4_REG 0x0584
-#define AB4500_USB_LINE_CTRL5_REG 0x0585
-#define AB4500_USB_OTG_CTRL_REG 0x0587
-#define AB4500_USB_OTG_STAT_REG 0x0588
-#define AB4500_USB_OTG_STAT_REG 0x0588
-#define AB4500_USB_CTRL_SPARE_REG 0x0589
-#define AB4500_USB_PHY_CTRL_REG 0x058A
-
-/*
- * TVOUT / CTRL register offsets
- * Bank : 0x06
- */
-#define AB4500_TVOUT_CTRL_REG 0x0680
-
-/*
- * DBI register offsets
- * Bank : 0x07
- */
-#define AB4500_DBI_REG1_REG 0x0700
-#define AB4500_DBI_REG2_REG 0x0701
-
-/*
- * ECI regsiter offsets
- * Bank : 0x08
- */
-#define AB4500_ECI_CTRL_REG 0x0800
-#define AB4500_ECI_HOOKLEVEL_REG 0x0801
-#define AB4500_ECI_DATAOUT_REG 0x0802
-#define AB4500_ECI_DATAIN_REG 0x0803
-
-/*
- * AV Connector register offsets
- * Bank : 0x08
- */
-#define AB4500_AV_CONN_REG 0x0840
-
-/*
- * Accessory detection register offsets
- * Bank : 0x08
- */
-#define AB4500_ACC_DET_DB1_REG 0x0880
-#define AB4500_ACC_DET_DB2_REG 0x0881
-
-/*
- * GPADC register offsets
- * Bank : 0x0A
- */
-#define AB4500_GPADC_CTRL1_REG 0x0A00
-#define AB4500_GPADC_CTRL2_REG 0x0A01
-#define AB4500_GPADC_CTRL3_REG 0x0A02
-#define AB4500_GPADC_AUTO_TIMER_REG 0x0A03
-#define AB4500_GPADC_STAT_REG 0x0A04
-#define AB4500_GPADC_MANDATAL_REG 0x0A05
-#define AB4500_GPADC_MANDATAH_REG 0x0A06
-#define AB4500_GPADC_AUTODATAL_REG 0x0A07
-#define AB4500_GPADC_AUTODATAH_REG 0x0A08
-#define AB4500_GPADC_MUX_CTRL_REG 0x0A09
-
-/*
- * Charger / status register offfsets
- * Bank : 0x0B
- */
-#define AB4500_CH_STATUS1_REG 0x0B00
-#define AB4500_CH_STATUS2_REG 0x0B01
-#define AB4500_CH_USBCH_STAT1_REG 0x0B02
-#define AB4500_CH_USBCH_STAT2_REG 0x0B03
-#define AB4500_CH_FSM_STAT_REG 0x0B04
-#define AB4500_CH_STAT_REG 0x0B05
-
-/*
- * Charger / control register offfsets
- * Bank : 0x0B
- */
-#define AB4500_CH_VOLT_LVL_REG 0x0B40
-
-/*
- * Charger / main control register offfsets
- * Bank : 0x0B
- */
-#define AB4500_MCH_CTRL1 0x0B80
-#define AB4500_MCH_CTRL2 0x0B81
-#define AB4500_MCH_IPT_CURLVL_REG 0x0B82
-#define AB4500_CH_WD_REG 0x0B83
-
-/*
- * Charger / USB control register offsets
- * Bank : 0x0B
- */
-#define AB4500_USBCH_CTRL1_REG 0x0BC0
-#define AB4500_USBCH_CTRL2_REG 0x0BC1
-#define AB4500_USBCH_IPT_CRNTLVL_REG 0x0BC2
-
-/*
- * RTC bank register offsets
- * Bank : 0xF
- */
-#define AB4500_RTC_SOFF_STAT_REG 0x0F00
-#define AB4500_RTC_CC_CONF_REG 0x0F01
-#define AB4500_RTC_READ_REQ_REG 0x0F02
-#define AB4500_RTC_WATCH_TSECMID_REG 0x0F03
-#define AB4500_RTC_WATCH_TSECHI_REG 0x0F04
-#define AB4500_RTC_WATCH_TMIN_LOW_REG 0x0F05
-#define AB4500_RTC_WATCH_TMIN_MID_REG 0x0F06
-#define AB4500_RTC_WATCH_TMIN_HI_REG 0x0F07
-#define AB4500_RTC_ALRM_MIN_LOW_REG 0x0F08
-#define AB4500_RTC_ALRM_MIN_MID_REG 0x0F09
-#define AB4500_RTC_ALRM_MIN_HI_REG 0x0F0A
-#define AB4500_RTC_STAT_REG 0x0F0B
-#define AB4500_RTC_BKUP_CHG_REG 0x0F0C
-#define AB4500_RTC_FORCE_BKUP_REG 0x0F0D
-#define AB4500_RTC_CALIB_REG 0x0F0E
-#define AB4500_RTC_SWITCH_STAT_REG 0x0F0F
-
-/*
- * PWM Out generators
- * Bank: 0x10
- */
-#define AB4500_PWM_OUT_CTRL1_REG 0x1060
-#define AB4500_PWM_OUT_CTRL2_REG 0x1061
-#define AB4500_PWM_OUT_CTRL3_REG 0x1062
-#define AB4500_PWM_OUT_CTRL4_REG 0x1063
-#define AB4500_PWM_OUT_CTRL5_REG 0x1064
-#define AB4500_PWM_OUT_CTRL6_REG 0x1065
-#define AB4500_PWM_OUT_CTRL7_REG 0x1066
-
-#define AB4500_I2C_PAD_CTRL_REG 0x1067
-#define AB4500_REV_REG 0x1080
-
-/**
- * struct ab4500
- * @spi: spi device structure
- * @tx_buf: transmit buffer
- * @rx_buf: receive buffer
- * @lock: sync primitive
- */
-struct ab4500 {
- struct spi_device *spi;
- unsigned long tx_buf[4];
- unsigned long rx_buf[4];
- struct mutex lock;
-};
-
-int ab4500_write(struct ab4500 *ab4500, unsigned char block,
- unsigned long addr, unsigned char data);
-int ab4500_read(struct ab4500 *ab4500, unsigned char block,
- unsigned long addr);
-
-#endif /* MFD_AB4500_H */
diff --git a/include/linux/mfd/ab8500.h b/include/linux/mfd/ab8500.h
new file mode 100644
index 0000000..b63ff3b
--- /dev/null
+++ b/include/linux/mfd/ab8500.h
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * License Terms: GNU General Public License v2
+ * Author: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
+ */
+#ifndef MFD_AB8500_H
+#define MFD_AB8500_H
+
+#include <linux/device.h>
+
+/*
+ * Interrupts
+ */
+
+#define AB8500_INT_MAIN_EXT_CH_NOT_OK 0
+#define AB8500_INT_UN_PLUG_TV_DET 1
+#define AB8500_INT_PLUG_TV_DET 2
+#define AB8500_INT_TEMP_WARM 3
+#define AB8500_INT_PON_KEY2DB_F 4
+#define AB8500_INT_PON_KEY2DB_R 5
+#define AB8500_INT_PON_KEY1DB_F 6
+#define AB8500_INT_PON_KEY1DB_R 7
+#define AB8500_INT_BATT_OVV 8
+#define AB8500_INT_MAIN_CH_UNPLUG_DET 10
+#define AB8500_INT_MAIN_CH_PLUG_DET 11
+#define AB8500_INT_USB_ID_DET_F 12
+#define AB8500_INT_USB_ID_DET_R 13
+#define AB8500_INT_VBUS_DET_F 14
+#define AB8500_INT_VBUS_DET_R 15
+#define AB8500_INT_VBUS_CH_DROP_END 16
+#define AB8500_INT_RTC_60S 17
+#define AB8500_INT_RTC_ALARM 18
+#define AB8500_INT_BAT_CTRL_INDB 20
+#define AB8500_INT_CH_WD_EXP 21
+#define AB8500_INT_VBUS_OVV 22
+#define AB8500_INT_MAIN_CH_DROP_END 23
+#define AB8500_INT_CCN_CONV_ACC 24
+#define AB8500_INT_INT_AUD 25
+#define AB8500_INT_CCEOC 26
+#define AB8500_INT_CC_INT_CALIB 27
+#define AB8500_INT_LOW_BAT_F 28
+#define AB8500_INT_LOW_BAT_R 29
+#define AB8500_INT_BUP_CHG_NOT_OK 30
+#define AB8500_INT_BUP_CHG_OK 31
+#define AB8500_INT_GP_HW_ADC_CONV_END 32
+#define AB8500_INT_ACC_DETECT_1DB_F 33
+#define AB8500_INT_ACC_DETECT_1DB_R 34
+#define AB8500_INT_ACC_DETECT_22DB_F 35
+#define AB8500_INT_ACC_DETECT_22DB_R 36
+#define AB8500_INT_ACC_DETECT_21DB_F 37
+#define AB8500_INT_ACC_DETECT_21DB_R 38
+#define AB8500_INT_GP_SW_ADC_CONV_END 39
+#define AB8500_INT_BTEMP_LOW 72
+#define AB8500_INT_BTEMP_LOW_MEDIUM 73
+#define AB8500_INT_BTEMP_MEDIUM_HIGH 74
+#define AB8500_INT_BTEMP_HIGH 75
+#define AB8500_INT_USB_CHARGER_NOT_OK 81
+#define AB8500_INT_ID_WAKEUP_R 82
+#define AB8500_INT_ID_DET_R1R 84
+#define AB8500_INT_ID_DET_R2R 85
+#define AB8500_INT_ID_DET_R3R 86
+#define AB8500_INT_ID_DET_R4R 87
+#define AB8500_INT_ID_WAKEUP_F 88
+#define AB8500_INT_ID_DET_R1F 90
+#define AB8500_INT_ID_DET_R2F 91
+#define AB8500_INT_ID_DET_R3F 92
+#define AB8500_INT_ID_DET_R4F 93
+#define AB8500_INT_USB_CHG_DET_DONE 94
+#define AB8500_INT_USB_CH_TH_PROT_F 96
+#define AB8500_INT_USB_CH_TH_PROP_R 97
+#define AB8500_INT_MAIN_CH_TH_PROP_F 98
+#define AB8500_INT_MAIN_CH_TH_PROT_R 99
+#define AB8500_INT_USB_CHARGER_NOT_OKF 103
+
+#define AB8500_NR_IRQS 104
+#define AB8500_NUM_IRQ_REGS 13
+
+/**
+ * struct ab8500 - ab8500 internal structure
+ * @dev: parent device
+ * @lock: read/write operations lock
+ * @irq_lock: genirq bus lock
+ * @revision: chip revision
+ * @irq: irq line
+ * @write: register write
+ * @read: register read
+ * @rx_buf: rx buf for SPI
+ * @tx_buf: tx buf for SPI
+ * @mask: cache of IRQ regs for bus lock
+ * @oldmask: cache of previous IRQ regs for bus lock
+ */
+struct ab8500 {
+ struct device *dev;
+ struct mutex lock;
+ struct mutex irq_lock;
+ int revision;
+ int irq_base;
+ int irq;
+
+ int (*write) (struct ab8500 *a8500, u16 addr, u8 data);
+ int (*read) (struct ab8500 *a8500, u16 addr);
+
+ unsigned long tx_buf[4];
+ unsigned long rx_buf[4];
+
+ u8 mask[AB8500_NUM_IRQ_REGS];
+ u8 oldmask[AB8500_NUM_IRQ_REGS];
+};
+
+/**
+ * struct ab8500_platform_data - AB8500 platform data
+ * @irq_base: start of AB8500 IRQs, AB8500_NR_IRQS will be used
+ * @init: board-specific initialization after detection of ab8500
+ */
+struct ab8500_platform_data {
+ int irq_base;
+ void (*init) (struct ab8500 *);
+};
+
+extern int ab8500_write(struct ab8500 *a8500, u16 addr, u8 data);
+extern int ab8500_read(struct ab8500 *a8500, u16 addr);
+extern int ab8500_set_bits(struct ab8500 *a8500, u16 addr, u8 mask, u8 data);
+
+extern int __devinit ab8500_init(struct ab8500 *ab8500);
+extern int __devexit ab8500_exit(struct ab8500 *ab8500);
+
+#endif /* MFD_AB8500_H */