diff options
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/Kconfig | 66 | ||||
| -rw-r--r-- | drivers/mfd/Makefile | 7 | ||||
| -rw-r--r-- | drivers/mfd/da903x.c | 16 | ||||
| -rw-r--r-- | drivers/mfd/dm355evm_msp.c | 420 | ||||
| -rw-r--r-- | drivers/mfd/menelaus.c | 1285 | ||||
| -rw-r--r-- | drivers/mfd/mfd-core.c | 1 | ||||
| -rw-r--r-- | drivers/mfd/tps65010.c | 1072 | ||||
| -rw-r--r-- | drivers/mfd/twl4030-core.c | 472 | ||||
| -rw-r--r-- | drivers/mfd/twl4030-irq.c | 30 | ||||
| -rw-r--r-- | drivers/mfd/wm8350-core.c | 266 | ||||
| -rw-r--r-- | drivers/mfd/wm8350-i2c.c | 4 | ||||
| -rw-r--r-- | drivers/mfd/wm8350-regmap.c | 2100 | ||||
| -rw-r--r-- | drivers/mfd/wm8400-core.c | 31 |
13 files changed, 5491 insertions, 279 deletions
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 257277394f8c..416f9e7286ba 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -34,6 +34,14 @@ config MFD_ASIC3 This driver supports the ASIC3 multifunction chip found on many PDAs (mainly iPAQ and HTC based ones) +config MFD_DM355EVM_MSP + bool "DaVinci DM355 EVM microcontroller" + depends on I2C && MACH_DAVINCI_DM355_EVM + help + This driver supports the MSP430 microcontroller used on these + boards. MSP430 firmware manages resets and power sequencing, + inputs from buttons and the IR remote, LEDs, an RTC, and more. + config HTC_EGPIO bool "HTC EGPIO support" depends on GENERIC_HARDIRQS && GPIOLIB && ARM @@ -61,9 +69,32 @@ config UCB1400_CORE To compile this driver as a module, choose M here: the module will be called ucb1400_core. +config TPS65010 + tristate "TPS6501x Power Management chips" + depends on I2C && GPIOLIB + default y if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_OSK + help + If you say yes here you get support for the TPS6501x series of + Power Management chips. These include voltage regulators, + lithium ion/polymer battery charging, and other features that + are often used in portable devices like cell phones and cameras. + + This driver can also be built as a module. If so, the module + will be called tps65010. + +config MENELAUS + bool "Texas Instruments TWL92330/Menelaus PM chip" + depends on I2C=y && ARCH_OMAP24XX + help + If you say yes here you get support for the Texas Instruments + TWL92330/Menelaus Power Management chip. This include voltage + regulators, Dual slot memory card tranceivers, real-time clock + and other features that are often used in portable devices like + cell phones and PDAs. + config TWL4030_CORE bool "Texas Instruments TWL4030/TPS659x0 Support" - depends on I2C=y && GENERIC_HARDIRQS && (ARCH_OMAP2 || ARCH_OMAP3) + depends on I2C=y && GENERIC_HARDIRQS help Say yes here if you have TWL4030 family chip on your board. This core driver provides register access and IRQ handling @@ -116,6 +147,7 @@ config PMIC_DA903X config MFD_WM8400 tristate "Support Wolfson Microelectronics WM8400" + select MFD_CORE depends on I2C help Support for the Wolfson Microelecronics WM8400 PMIC and audio @@ -142,6 +174,38 @@ config MFD_WM8350_CONFIG_MODE_3 bool depends on MFD_WM8350 +config MFD_WM8351_CONFIG_MODE_0 + bool + depends on MFD_WM8350 + +config MFD_WM8351_CONFIG_MODE_1 + bool + depends on MFD_WM8350 + +config MFD_WM8351_CONFIG_MODE_2 + bool + depends on MFD_WM8350 + +config MFD_WM8351_CONFIG_MODE_3 + bool + depends on MFD_WM8350 + +config MFD_WM8352_CONFIG_MODE_0 + bool + depends on MFD_WM8350 + +config MFD_WM8352_CONFIG_MODE_1 + bool + depends on MFD_WM8350 + +config MFD_WM8352_CONFIG_MODE_2 + bool + depends on MFD_WM8350 + +config MFD_WM8352_CONFIG_MODE_3 + bool + depends on MFD_WM8350 + config MFD_WM8350_I2C tristate "Support Wolfson Microelectronics WM8350 with I2C" select MFD_WM8350 diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 9a5ad8af9116..0c9418b36c26 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -8,6 +8,8 @@ obj-$(CONFIG_MFD_ASIC3) += asic3.o obj-$(CONFIG_HTC_EGPIO) += htc-egpio.o obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o +obj-$(CONFIG_MFD_DM355EVM_MSP) += dm355evm_msp.o + obj-$(CONFIG_MFD_T7L66XB) += t7l66xb.o obj-$(CONFIG_MFD_TC6387XB) += tc6387xb.o obj-$(CONFIG_MFD_TC6393XB) += tc6393xb.o @@ -17,6 +19,9 @@ wm8350-objs := wm8350-core.o wm8350-regmap.o wm8350-gpio.o obj-$(CONFIG_MFD_WM8350) += wm8350.o obj-$(CONFIG_MFD_WM8350_I2C) += wm8350-i2c.o +obj-$(CONFIG_TPS65010) += tps65010.o +obj-$(CONFIG_MENELAUS) += menelaus.o + obj-$(CONFIG_TWL4030_CORE) += twl4030-core.o twl4030-irq.o obj-$(CONFIG_MFD_CORE) += mfd-core.o @@ -31,4 +36,4 @@ obj-$(CONFIG_MCP_UCB1200) += ucb1x00-assabet.o endif obj-$(CONFIG_UCB1400_CORE) += ucb1400_core.o -obj-$(CONFIG_PMIC_DA903X) += da903x.o
\ No newline at end of file +obj-$(CONFIG_PMIC_DA903X) += da903x.o diff --git a/drivers/mfd/da903x.c b/drivers/mfd/da903x.c index 0b5bd85dfcec..99f8dcfe3d98 100644 --- a/drivers/mfd/da903x.c +++ b/drivers/mfd/da903x.c @@ -151,12 +151,24 @@ int da903x_write(struct device *dev, int reg, uint8_t val) } EXPORT_SYMBOL_GPL(da903x_write); +int da903x_writes(struct device *dev, int reg, int len, uint8_t *val) +{ + return __da903x_writes(to_i2c_client(dev), reg, len, val); +} +EXPORT_SYMBOL_GPL(da903x_writes); + int da903x_read(struct device *dev, int reg, uint8_t *val) { return __da903x_read(to_i2c_client(dev), reg, val); } EXPORT_SYMBOL_GPL(da903x_read); +int da903x_reads(struct device *dev, int reg, int len, uint8_t *val) +{ + return __da903x_reads(to_i2c_client(dev), reg, len, val); +} +EXPORT_SYMBOL_GPL(da903x_reads); + int da903x_set_bits(struct device *dev, int reg, uint8_t bit_mask) { struct da903x_chip *chip = dev_get_drvdata(dev); @@ -435,13 +447,13 @@ static const struct i2c_device_id da903x_id_table[] = { }; MODULE_DEVICE_TABLE(i2c, da903x_id_table); -static int __devexit __remove_subdev(struct device *dev, void *unused) +static int __remove_subdev(struct device *dev, void *unused) { platform_device_unregister(to_platform_device(dev)); return 0; } -static int __devexit da903x_remove_subdevs(struct da903x_chip *chip) +static int da903x_remove_subdevs(struct da903x_chip *chip) { return device_for_each_child(chip->dev, NULL, __remove_subdev); } diff --git a/drivers/mfd/dm355evm_msp.c b/drivers/mfd/dm355evm_msp.c new file mode 100644 index 000000000000..4214b3f72426 --- /dev/null +++ b/drivers/mfd/dm355evm_msp.c @@ -0,0 +1,420 @@ +/* + * dm355evm_msp.c - driver for MSP430 firmware on DM355EVM board + * + * Copyright (C) 2008 David Brownell + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/init.h> +#include <linux/mutex.h> +#include <linux/platform_device.h> +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/gpio.h> +#include <linux/leds.h> +#include <linux/i2c.h> +#include <linux/i2c/dm355evm_msp.h> + + +/* + * The DM355 is a DaVinci chip with video support but no C64+ DSP. Its + * EVM board has an MSP430 programmed with firmware for various board + * support functions. This driver exposes some of them directly, and + * supports other drivers (e.g. RTC, input) for more complex access. + * + * Because this firmware is entirely board-specific, this file embeds + * knowledge that would be passed as platform_data in a generic driver. + * + * This driver was tested with firmware revision A4. + */ + +#if defined(CONFIG_KEYBOARD_DM355EVM) \ + || defined(CONFIG_KEYBOARD_DM355EVM_MODULE) +#define msp_has_keyboard() true +#else +#define msp_has_keyboard() false +#endif + +#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE) +#define msp_has_leds() true +#else +#define msp_has_leds() false +#endif + +#if defined(CONFIG_RTC_DRV_DM355EVM) || defined(CONFIG_RTC_DRV_DM355EVM_MODULE) +#define msp_has_rtc() true +#else +#define msp_has_rtc() false +#endif + +#if defined(CONFIG_VIDEO_TVP514X) || defined(CONFIG_VIDEO_TVP514X_MODULE) +#define msp_has_tvp() true +#else +#define msp_has_tvp() false +#endif + + +/*----------------------------------------------------------------------*/ + +/* REVISIT for paranoia's sake, retry reads/writes on error */ + +static struct i2c_client *msp430; + +/** + * dm355evm_msp_write - Writes a register in dm355evm_msp + * @value: the value to be written + * @reg: register address + * + * Returns result of operation - 0 is success, else negative errno + */ +int dm355evm_msp_write(u8 value, u8 reg) +{ + return i2c_smbus_write_byte_data(msp430, reg, value); +} +EXPORT_SYMBOL(dm355evm_msp_write); + +/** + * dm355evm_msp_read - Reads a register from dm355evm_msp + * @reg: register address + * + * Returns result of operation - value, or negative errno + */ +int dm355evm_msp_read(u8 reg) +{ + return i2c_smbus_read_byte_data(msp430, reg); +} +EXPORT_SYMBOL(dm355evm_msp_read); + +/*----------------------------------------------------------------------*/ + +/* + * Many of the msp430 pins are just used as fixed-direction GPIOs. + * We could export a few more of them this way, if we wanted. + */ +#define MSP_GPIO(bit,reg) ((DM355EVM_MSP_ ## reg) << 3 | (bit)) + +static const u8 msp_gpios[] = { + /* eight leds */ + MSP_GPIO(0, LED), MSP_GPIO(1, LED), + MSP_GPIO(2, LED), MSP_GPIO(3, LED), + MSP_GPIO(4, LED), MSP_GPIO(5, LED), + MSP_GPIO(6, LED), MSP_GPIO(7, LED), + /* SW6 and the NTSC/nPAL jumper */ + MSP_GPIO(0, SWITCH1), MSP_GPIO(1, SWITCH1), + MSP_GPIO(2, SWITCH1), MSP_GPIO(3, SWITCH1), + MSP_GPIO(4, SWITCH1), +}; + +#define MSP_GPIO_REG(offset) (msp_gpios[(offset)] >> 3) +#define MSP_GPIO_MASK(offset) BIT(msp_gpios[(offset)] & 0x07) + +static int msp_gpio_in(struct gpio_chip *chip, unsigned offset) +{ + switch (MSP_GPIO_REG(offset)) { + case DM355EVM_MSP_SWITCH1: + case DM355EVM_MSP_SWITCH2: + case DM355EVM_MSP_SDMMC: + return 0; + default: + return -EINVAL; + } +} + +static u8 msp_led_cache; + +static int msp_gpio_get(struct gpio_chip *chip, unsigned offset) +{ + int reg, status; + + reg = MSP_GPIO_REG(offset); + status = dm355evm_msp_read(reg); + if (status < 0) + return status; + if (reg == DM355EVM_MSP_LED) + msp_led_cache = status; + return status & MSP_GPIO_MASK(offset); +} + +static int msp_gpio_out(struct gpio_chip *chip, unsigned offset, int value) +{ + int mask, bits; + + /* NOTE: there are some other signals that could be + * packaged as output GPIOs, but they aren't as useful + * as the LEDs ... so for now we don't. + */ + if (MSP_GPIO_REG(offset) != DM355EVM_MSP_LED) + return -EINVAL; + + mask = MSP_GPIO_MASK(offset); + bits = msp_led_cache; + + bits &= ~mask; + if (value) + bits |= mask; + msp_led_cache = bits; + + return dm355evm_msp_write(bits, DM355EVM_MSP_LED); +} + +static void msp_gpio_set(struct gpio_chip *chip, unsigned offset, int value) +{ + msp_gpio_out(chip, offset, value); +} + +static struct gpio_chip dm355evm_msp_gpio = { + .label = "dm355evm_msp", + .owner = THIS_MODULE, + .direction_input = msp_gpio_in, + .get = msp_gpio_get, + .direction_output = msp_gpio_out, + .set = msp_gpio_set, + .base = -EINVAL, /* dynamic assignment */ + .ngpio = ARRAY_SIZE(msp_gpios), + .can_sleep = true, +}; + +/*----------------------------------------------------------------------*/ + +static struct device *add_child(struct i2c_client *client, const char *name, + void *pdata, unsigned pdata_len, + bool can_wakeup, int irq) +{ + struct platform_device *pdev; + int status; + + pdev = platform_device_alloc(name, -1); + if (!pdev) { + dev_dbg(&client->dev, "can't alloc dev\n"); + status = -ENOMEM; + goto err; + } + + device_init_wakeup(&pdev->dev, can_wakeup); + pdev->dev.parent = &client->dev; + + if (pdata) { + status = platform_device_add_data(pdev, pdata, pdata_len); + if (status < 0) { + dev_dbg(&pdev->dev, "can't add platform_data\n"); + goto err; + } + } + + if (irq) { + struct resource r = { + .start = irq, + .flags = IORESOURCE_IRQ, + }; + + status = platform_device_add_resources(pdev, &r, 1); + if (status < 0) { + dev_dbg(&pdev->dev, "can't add irq\n"); + goto err; + } + } + + status = platform_device_add(pdev); + +err: + if (status < 0) { + platform_device_put(pdev); + dev_err(&client->dev, "can't add %s dev\n", name); + return ERR_PTR(status); + } + return &pdev->dev; +} + +static int add_children(struct i2c_client *client) +{ + static const struct { + int offset; + char *label; + } config_inputs[] = { + /* 8 == right after the LEDs */ + { 8 + 0, "sw6_1", }, + { 8 + 1, "sw6_2", }, + { 8 + 2, "sw6_3", }, + { 8 + 3, "sw6_4", }, + { 8 + 4, "NTSC/nPAL", }, + }; + + struct device *child; + int status; + int i; + + /* GPIO-ish stuff */ + dm355evm_msp_gpio.dev = &client->dev; + status = gpiochip_add(&dm355evm_msp_gpio); + if (status < 0) + return status; + + /* LED output */ + if (msp_has_leds()) { +#define GPIO_LED(l) .name = l, .active_low = true + static struct gpio_led evm_leds[] = { + { GPIO_LED("dm355evm::ds14"), + .default_trigger = "heartbeat", }, + { GPIO_LED("dm355evm::ds15"), + .default_trigger = "mmc0", }, + { GPIO_LED("dm355evm::ds16"), + /* could also be a CE-ATA drive */ + .default_trigger = "mmc1", }, + { GPIO_LED("dm355evm::ds17"), + .default_trigger = "nand-disk", }, + { GPIO_LED("dm355evm::ds18"), }, + { GPIO_LED("dm355evm::ds19"), }, + { GPIO_LED("dm355evm::ds20"), }, + { GPIO_LED("dm355evm::ds21"), }, + }; +#undef GPIO_LED + + struct gpio_led_platform_data evm_led_data = { + .num_leds = ARRAY_SIZE(evm_leds), + .leds = evm_leds, + }; + + for (i = 0; i < ARRAY_SIZE(evm_leds); i++) + evm_leds[i].gpio = i + dm355evm_msp_gpio.base; + + /* NOTE: these are the only fully programmable LEDs + * on the board, since GPIO-61/ds22 (and many signals + * going to DC7) must be used for AEMIF address lines + * unless the top 1 GB of NAND is unused... + */ + child = add_child(client, "leds-gpio", + &evm_led_data, sizeof(evm_led_data), + false, 0); + if (IS_ERR(child)) + return PTR_ERR(child); + } + + /* configuration inputs */ + for (i = 0; i < ARRAY_SIZE(config_inputs); i++) { + int gpio = dm355evm_msp_gpio.base + config_inputs[i].offset; + + gpio_request(gpio, config_inputs[i].label); + gpio_direction_input(gpio); + + /* make it easy for userspace to see these */ + gpio_export(gpio, false); + } + + /* RTC is a 32 bit counter, no alarm */ + if (msp_has_rtc()) { + child = add_child(client, "rtc-dm355evm", + NULL, 0, false, 0); + if (IS_ERR(child)) + return PTR_ERR(child); + } + + /* input from buttons and IR remote (uses the IRQ) */ + if (msp_has_keyboard()) { + child = add_child(client, "dm355evm_keys", + NULL, 0, true, client->irq); + if (IS_ERR(child)) + return PTR_ERR(child); + } + + return 0; +} + +/*----------------------------------------------------------------------*/ + +static void dm355evm_command(unsigned command) +{ + int status; + + status = dm355evm_msp_write(command, DM355EVM_MSP_COMMAND); + if (status < 0) + dev_err(&msp430->dev, "command %d failure %d\n", + command, status); +} + +static void dm355evm_power_off(void) +{ + dm355evm_command(MSP_COMMAND_POWEROFF); +} + +static int dm355evm_msp_remove(struct i2c_client *client) +{ + pm_power_off = NULL; + msp430 = NULL; + return 0; +} + +static int +dm355evm_msp_probe(struct i2c_client *client, const struct i2c_device_id *id) +{ + int status; + const char *video = msp_has_tvp() ? "TVP5146" : "imager"; + + if (msp430) + return -EBUSY; + msp430 = client; + + /* display revision status; doubles as sanity check */ + status = dm355evm_msp_read(DM355EVM_MSP_FIRMREV); + if (status < 0) + goto fail; + dev_info(&client->dev, "firmware v.%02X, %s as video-in\n", + status, video); + + /* mux video input: either tvp5146 or some external imager */ + status = dm355evm_msp_write(msp_has_tvp() ? 0 : MSP_VIDEO_IMAGER, + DM355EVM_MSP_VIDEO_IN); + if (status < 0) + dev_warn(&client->dev, "error %d muxing %s as video-in\n", + status, video); + + /* init LED cache, and turn off the LEDs */ + msp_led_cache = 0xff; + dm355evm_msp_write(msp_led_cache, DM355EVM_MSP_LED); + + /* export capabilities we support */ + status = add_children(client); + if (status < 0) + goto fail; + + /* PM hookup */ + pm_power_off = dm355evm_power_off; + + return 0; + +fail: + /* FIXME remove children ... */ + dm355evm_msp_remove(client); + return status; +} + +static const struct i2c_device_id dm355evm_msp_ids[] = { + { "dm355evm_msp", 0 }, + { /* end of list */ }, +}; +MODULE_DEVICE_TABLE(i2c, dm355evm_msp_ids); + +static struct i2c_driver dm355evm_msp_driver = { + .driver.name = "dm355evm_msp", + .id_table = dm355evm_msp_ids, + .probe = dm355evm_msp_probe, + .remove = dm355evm_msp_remove, +}; + +static int __init dm355evm_msp_init(void) +{ + return i2c_add_driver(&dm355evm_msp_driver); +} +subsys_initcall(dm355evm_msp_init); + +static void __exit dm355evm_msp_exit(void) +{ + i2c_del_driver(&dm355evm_msp_driver); +} +module_exit(dm355evm_msp_exit); + +MODULE_DESCRIPTION("Interface to MSP430 firmware on DM355EVM"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mfd/menelaus.c b/drivers/mfd/menelaus.c new file mode 100644 index 000000000000..4b364bae6b3e --- /dev/null +++ b/drivers/mfd/menelaus.c @@ -0,0 +1,1285 @@ +/* + * Copyright (C) 2004 Texas Instruments, Inc. + * + * Some parts based tps65010.c: + * Copyright (C) 2004 Texas Instruments and + * Copyright (C) 2004-2005 David Brownell + * + * Some parts based on tlv320aic24.c: + * Copyright (C) by Kai Svahn <kai.svahn@nokia.com> + * + * Changes for interrupt handling and clean-up by + * Tony Lindgren <tony@atomide.com> and Imre Deak <imre.deak@nokia.com> + * Cleanup and generalized support for voltage setting by + * Juha Yrjola + * Added support for controlling VCORE and regulator sleep states, + * Amit Kucheria <amit.kucheria@nokia.com> + * Copyright (C) 2005, 2006 Nokia Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/interrupt.h> +#include <linux/sched.h> +#include <linux/mutex.h> +#include <linux/workqueue.h> +#include <linux/delay.h> +#include <linux/rtc.h> +#include <linux/bcd.h> + +#include <asm/mach/irq.h> + +#include <mach/gpio.h> +#include <mach/menelaus.h> + +#define DRIVER_NAME "menelaus" + +#define MENELAUS_I2C_ADDRESS 0x72 + +#define MENELAUS_REV 0x01 +#define MENELAUS_VCORE_CTRL1 0x02 +#define MENELAUS_VCORE_CTRL2 0x03 +#define MENELAUS_VCORE_CTRL3 0x04 +#define MENELAUS_VCORE_CTRL4 0x05 +#define MENELAUS_VCORE_CTRL5 0x06 +#define MENELAUS_DCDC_CTRL1 0x07 +#define MENELAUS_DCDC_CTRL2 0x08 +#define MENELAUS_DCDC_CTRL3 0x09 +#define MENELAUS_LDO_CTRL1 0x0A +#define MENELAUS_LDO_CTRL2 0x0B +#define MENELAUS_LDO_CTRL3 0x0C +#define MENELAUS_LDO_CTRL4 0x0D +#define MENELAUS_LDO_CTRL5 0x0E +#define MENELAUS_LDO_CTRL6 0x0F +#define MENELAUS_LDO_CTRL7 0x10 +#define MENELAUS_LDO_CTRL8 0x11 +#define MENELAUS_SLEEP_CTRL1 0x12 +#define MENELAUS_SLEEP_CTRL2 0x13 +#define MENELAUS_DEVICE_OFF 0x14 +#define MENELAUS_OSC_CTRL 0x15 +#define MENELAUS_DETECT_CTRL 0x16 +#define MENELAUS_INT_MASK1 0x17 +#define MENELAUS_INT_MASK2 0x18 +#define MENELAUS_INT_STATUS1 0x19 +#define MENELAUS_INT_STATUS2 0x1A +#define MENELAUS_INT_ACK1 0x1B +#define MENELAUS_INT_ACK2 0x1C +#define MENELAUS_GPIO_CTRL 0x1D +#define MENELAUS_GPIO_IN 0x1E +#define MENELAUS_GPIO_OUT 0x1F +#define MENELAUS_BBSMS 0x20 +#define MENELAUS_RTC_CTRL 0x21 +#define MENELAUS_RTC_UPDATE 0x22 +#define MENELAUS_RTC_SEC 0x23 +#define MENELAUS_RTC_MIN 0x24 +#define MENELAUS_RTC_HR 0x25 +#define MENELAUS_RTC_DAY 0x26 +#define MENELAUS_RTC_MON 0x27 +#define MENELAUS_RTC_YR 0x28 +#define MENELAUS_RTC_WKDAY 0x29 +#define MENELAUS_RTC_AL_SEC 0x2A +#define MENELAUS_RTC_AL_MIN 0x2B +#define MENELAUS_RTC_AL_HR 0x2C +#define MENELAUS_RTC_AL_DAY 0x2D +#define MENELAUS_RTC_AL_MON 0x2E +#define MENELAUS_RTC_AL_YR 0x2F +#define MENELAUS_RTC_COMP_MSB 0x30 +#define MENELAUS_RTC_COMP_LSB 0x31 +#define MENELAUS_S1_PULL_EN 0x32 +#define MENELAUS_S1_PULL_DIR 0x33 +#define MENELAUS_S2_PULL_EN 0x34 +#define MENELAUS_S2_PULL_DIR 0x35 +#define MENELAUS_MCT_CTRL1 0x36 +#define MENELAUS_MCT_CTRL2 0x37 +#define MENELAUS_MCT_CTRL3 0x38 +#define MENELAUS_MCT_PIN_ST 0x39 +#define MENELAUS_DEBOUNCE1 0x3A + +#define IH_MENELAUS_IRQS 12 +#define MENELAUS_MMC_S1CD_IRQ 0 /* MMC slot 1 card change */ +#define MENELAUS_MMC_S2CD_IRQ 1 /* MMC slot 2 card change */ +#define MENELAUS_MMC_S1D1_IRQ 2 /* MMC DAT1 low in slot 1 */ +#define MENELAUS_MMC_S2D1_IRQ 3 /* MMC DAT1 low in slot 2 */ +#define MENELAUS_LOWBAT_IRQ 4 /* Low battery */ +#define MENELAUS_HOTDIE_IRQ 5 /* Hot die detect */ +#define MENELAUS_UVLO_IRQ 6 /* UVLO detect */ +#define MENELAUS_TSHUT_IRQ 7 /* Thermal shutdown */ +#define MENELAUS_RTCTMR_IRQ 8 /* RTC timer */ +#define MENELAUS_RTCALM_IRQ 9 /* RTC alarm */ +#define MENELAUS_RTCERR_IRQ 10 /* RTC error */ +#define MENELAUS_PSHBTN_IRQ 11 /* Push button */ +#define MENELAUS_RESERVED12_IRQ 12 /* Reserved */ +#define MENELAUS_RESERVED13_IRQ 13 /* Reserved */ +#define MENELAUS_RESERVED14_IRQ 14 /* Reserved */ +#define MENELAUS_RESERVED15_IRQ 15 /* Reserved */ + +static void menelaus_work(struct work_struct *_menelaus); + +struct menelaus_chip { + struct mutex lock; + struct i2c_client *client; + struct work_struct work; +#ifdef CONFIG_RTC_DRV_TWL92330 + struct rtc_device *rtc; + u8 rtc_control; + unsigned uie:1; +#endif + unsigned vcore_hw_mode:1; + u8 mask1, mask2; + void (*handlers[16])(struct menelaus_chip *); + void (*mmc_callback)(void *data, u8 mask); + void *mmc_callback_data; +}; + +static struct menelaus_chip *the_menelaus; + +static int menelaus_write_reg(int reg, u8 value) +{ + int val = i2c_smbus_write_byte_data(the_menelaus->client, reg, value); + + if (val < 0) { + pr_err(DRIVER_NAME ": write error"); + return val; + } + + return 0; +} + +static int menelaus_read_reg(int reg) +{ + int val = i2c_smbus_read_byte_data(the_menelaus->client, reg); + + if (val < 0) + pr_err(DRIVER_NAME ": read error"); + + return val; +} + +static int menelaus_enable_irq(int irq) +{ + if (irq > 7) { + irq -= 8; + the_menelaus->mask2 &= ~(1 << irq); + return menelaus_write_reg(MENELAUS_INT_MASK2, + the_menelaus->mask2); + } else { + the_menelaus->mask1 &= ~(1 << irq); + return menelaus_write_reg(MENELAUS_INT_MASK1, + the_menelaus->mask1); + } +} + +static int menelaus_disable_irq(int irq) +{ + if (irq > 7) { + irq -= 8; + the_menelaus->mask2 |= (1 << irq); + return menelaus_write_reg(MENELAUS_INT_MASK2, + the_menelaus->mask2); + } else { + the_menelaus->mask1 |= (1 << irq); + return menelaus_write_reg(MENELAUS_INT_MASK1, + the_menelaus->mask1); + } +} + +static int menelaus_ack_irq(int irq) +{ + if (irq > 7) + return menelaus_write_reg(MENELAUS_INT_ACK2, 1 << (irq - 8)); + else + return menelaus_write_reg(MENELAUS_INT_ACK1, 1 << irq); +} + +/* Adds a handler for an interrupt. Does not run in interrupt context */ +static int menelaus_add_irq_work(int irq, + void (*handler)(struct menelaus_chip *)) +{ + int ret = 0; + + mutex_lock(&the_menelaus->lock); + the_menelaus->handlers[irq] = handler; + ret = menelaus_enable_irq(irq); + mutex_unlock(&the_menelaus->lock); + + return ret; +} + +/* Removes handler for an interrupt */ +static int menelaus_remove_irq_work(int irq) +{ + int ret = 0; + + mutex_lock(&the_menelaus->lock); + ret = menelaus_disable_irq(irq); + the_menelaus->handlers[irq] = NULL; + mutex_unlock(&the_menelaus->lock); + + return ret; +} + +/* + * Gets scheduled when a card detect interrupt happens. Note that in some cases + * this line is wired to card cover switch rather than the card detect switch + * in each slot. In this case the cards are not seen by menelaus. + * FIXME: Add handling for D1 too + */ +static void menelaus_mmc_cd_work(struct menelaus_chip *menelaus_hw) +{ + int reg; + unsigned char card_mask = 0; + + reg = menelaus_read_reg(MENELAUS_MCT_PIN_ST); + if (reg < 0) + return; + + if (!(reg & 0x1)) + card_mask |= (1 << 0); + + if (!(reg & 0x2)) + card_mask |= (1 << 1); + + if (menelaus_hw->mmc_callback) + menelaus_hw->mmc_callback(menelaus_hw->mmc_callback_data, + card_mask); +} + +/* + * Toggles the MMC slots between open-drain and push-pull mode. + */ +int menelaus_set_mmc_opendrain(int slot, int enable) +{ + int ret, val; + + if (slot != 1 && slot != 2) + return -EINVAL; + mutex_lock(&the_menelaus->lock); + ret = menelaus_read_reg(MENELAUS_MCT_CTRL1); + if (ret < 0) { + mutex_unlock(&the_menelaus->lock); + return ret; + } + val = ret; + if (slot == 1) { + if (enable) + val |= 1 << 2; + else + val &= ~(1 << 2); + } else { + if (enable) + val |= 1 << 3; + else + val &= ~(1 << 3); + } + ret = menelaus_write_reg(MENELAUS_MCT_CTRL1, val); + mutex_unlock(&the_menelaus->lock); + + return ret; +} +EXPORT_SYMBOL(menelaus_set_mmc_opendrain); + +int menelaus_set_slot_sel(int enable) +{ + int ret; + + mutex_lock(&the_menelaus->lock); + ret = menelaus_read_reg(MENELAUS_GPIO_CTRL); + if (ret < 0) + goto out; + ret |= 0x02; + if (enable) + ret |= 1 << 5; + else + ret &= ~(1 << 5); + ret = menelaus_write_reg(MENELAUS_GPIO_CTRL, ret); +out: + mutex_unlock(&the_menelaus->lock); + return ret; +} +EXPORT_SYMBOL(menelaus_set_slot_sel); + +int menelaus_set_mmc_slot(int slot, int enable, int power, int cd_en) +{ + int ret, val; + + if (slot != 1 && slot != 2) + return -EINVAL; + if (power >= 3) + return -EINVAL; + + mutex_lock(&the_menelaus->lock); + + ret = menelaus_read_reg(MENELAUS_MCT_CTRL2); + if (ret < 0) + goto out; + val = ret; + if (slot == 1) { + if (cd_en) + val |= (1 << 4) | (1 << 6); + else + val &= ~((1 << 4) | (1 << 6)); + } else { + if (cd_en) + val |= (1 << 5) | (1 << 7); + else + val &= ~((1 << 5) | (1 << 7)); + } + ret = menelaus_write_reg(MENELAUS_MCT_CTRL2, val); + if (ret < 0) + goto out; + + ret = menelaus_read_reg(MENELAUS_MCT_CTRL3); + if (ret < 0) + goto out; + val = ret; + if (slot == 1) { + if (enable) + val |= 1 << 0; + else + val &= ~(1 << 0); + } else { + int b; + + if (enable) + ret |= 1 << 1; + else + ret &= ~(1 << 1); + b = menelaus_read_reg(MENELAUS_MCT_CTRL2); + b &= ~0x03; + b |= power; + ret = menelaus_write_reg(MENELAUS_MCT_CTRL2, b); + if (ret < 0) + goto out; + } + /* Disable autonomous shutdown */ + val &= ~(0x03 << 2); + ret = menelaus_write_reg(MENELAUS_MCT_CTRL3, val); +out: + mutex_unlock(&the_menelaus->lock); + return ret; +} +EXPORT_SYMBOL(menelaus_set_mmc_slot); + +int menelaus_register_mmc_callback(void (*callback)(void *data, u8 card_mask), + void *data) +{ + int ret = 0; + + the_menelaus->mmc_callback_data = data; + the_menelaus->mmc_callback = callback; + ret = menelaus_add_irq_work(MENELAUS_MMC_S1CD_IRQ, + menelaus_mmc_cd_work); + if (ret < 0) + return ret; + ret = menelaus_add_irq_work(MENELAUS_MMC_S2CD_IRQ, + menelaus_mmc_cd_work); + if (ret < 0) + return ret; + ret = menelaus_add_irq_work(MENELAUS_MMC_S1D1_IRQ, + menelaus_mmc_cd_work); + if (ret < 0) + return ret; + ret = menelaus_add_irq_work(MENELAUS_MMC_S2D1_IRQ, + menelaus_mmc_cd_work); + + return ret; +} +EXPORT_SYMBOL(menelaus_register_mmc_callback); + +void menelaus_unregister_mmc_callback(void) +{ + menelaus_remove_irq_work(MENELAUS_MMC_S1CD_IRQ); + menelaus_remove_irq_work(MENELAUS_MMC_S2CD_IRQ); + menelaus_remove_irq_work(MENELAUS_MMC_S1D1_IRQ); + menelaus_remove_irq_work(MENELAUS_MMC_S2D1_IRQ); + + the_menelaus->mmc_callback = NULL; + the_menelaus->mmc_callback_data = 0; +} +EXPORT_SYMBOL(menelaus_unregister_mmc_callback); + +struct menelaus_vtg { + const char *name; + u8 vtg_reg; + u8 vtg_shift; + u8 vtg_bits; + u8 mode_reg; +}; + +struct menelaus_vtg_value { + u16 vtg; + u16 val; +}; + +static int menelaus_set_voltage(const struct menelaus_vtg *vtg, int mV, + int vtg_val, int mode) +{ + int val, ret; + struct i2c_client *c = the_menelaus->client; + + mutex_lock(&the_menelaus->lock); + if (vtg == 0) + goto set_voltage; + + ret = menelaus_read_reg(vtg->vtg_reg); + if (ret < 0) + goto out; + val = ret & ~(((1 << vtg->vtg_bits) - 1) << vtg->vtg_shift); + val |= vtg_val << vtg->vtg_shift; + + dev_dbg(&c->dev, "Setting voltage '%s'" + "to %d mV (reg 0x%02x, val 0x%02x)\n", + vtg->name, mV, vtg->vtg_reg, val); + + ret = menelaus_write_reg(vtg->vtg_reg, val); + if (ret < 0) + goto out; +set_voltage: + ret = menelaus_write_reg(vtg->mode_reg, mode); +out: + mutex_unlock(&the_menelaus->lock); + if (ret == 0) { + /* Wait for voltage to stabilize */ + msleep(1); + } + return ret; +} + +static int menelaus_get_vtg_value(int vtg, const struct menelaus_vtg_value *tbl, + int n) +{ + int i; + + for (i = 0; i < n; i++, tbl++) + if (tbl->vtg == vtg) + return tbl->val; + return -EINVAL; +} + +/* + * Vcore can be programmed in two ways: + * SW-controlled: Required voltage is programmed into VCORE_CTRL1 + * HW-controlled: Required range (roof-floor) is programmed into VCORE_CTRL3 + * and VCORE_CTRL4 + * + * Call correct 'set' function accordingly + */ + +static const struct menelaus_vtg_value vcore_values[] = { + { 1000, 0 }, + { 1025, 1 }, + { 1050, 2 }, + { 1075, 3 }, + { 1100, 4 }, + { 1125, 5 }, + { 1150, 6 }, + { 1175, 7 }, + { 1200, 8 }, + { 1225, 9 }, + { 1250, 10 }, + { 1275, 11 }, + { 1300, 12 }, + { 1325, 13 }, + { 1350, 14 }, + { 1375, 15 }, + { 1400, 16 }, + { 1425, 17 }, + { 1450, 18 }, +}; + +int menelaus_set_vcore_sw(unsigned int mV) +{ + int val, ret; + struct i2c_client *c = the_menelaus->client; + + val = menelaus_get_vtg_value(mV, vcore_values, + ARRAY_SIZE(vcore_values)); + if (val < 0) |