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authorLinus Torvalds <torvalds@linux-foundation.org>2009-01-06 04:04:09 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-06 04:04:09 +0100
commit8e128ce3318a147903c893de1891f6c2306f8a61 (patch)
tree3b45e780570e9beb9ec8e83c677f2d9fd9b458ce /drivers/i2c
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus (diff)
parentmfd: Fix section mismatch in da903x (diff)
downloadlinux-8e128ce3318a147903c893de1891f6c2306f8a61.tar.xz
linux-8e128ce3318a147903c893de1891f6c2306f8a61.zip
Merge branch 'for-next' of git://git.o-hand.com/linux-mfd
* 'for-next' of git://git.o-hand.com/linux-mfd: (30 commits) mfd: Fix section mismatch in da903x mfd: move drivers/i2c/chips/menelaus.c to drivers/mfd mfd: move drivers/i2c/chips/tps65010.c to drivers/mfd mfd: dm355evm msp430 driver mfd: Add missing break from wm3850-core mfd: Add WM8351 support mfd: Support configurable numbers of DCDCs and ISINKs on WM8350 mfd: Handle missing WM8350 platform data mfd: Add WM8352 support mfd: Use irq_to_desc in twl4030 code power_supply: Add Dialog DA9030 battery charger driver mfd: Dialog DA9030 battery charger MFD driver mfd: Register WM8400 codec device mfd: Pass driver_data onto child devices mfd: Fix twl4030-core.c build error mfd: twl4030 regulator bug fixes mfd: twl4030: create some regulator devices mfd: twl4030: cleanup symbols and OMAP dependency mfd: twl4030: simplified child creation code power_supply: Add battery health reporting for WM8350 ...
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/chips/Kconfig23
-rw-r--r--drivers/i2c/chips/Makefile2
-rw-r--r--drivers/i2c/chips/menelaus.c1285
-rw-r--r--drivers/i2c/chips/tps65010.c1072
4 files changed, 0 insertions, 2382 deletions
diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
index 4c35702830ce..864ac561fdbb 100644
--- a/drivers/i2c/chips/Kconfig
+++ b/drivers/i2c/chips/Kconfig
@@ -126,19 +126,6 @@ config ISP1301_OMAP
This driver can also be built as a module. If so, the module
will be called isp1301_omap.
-config TPS65010
- tristate "TPS6501x Power Management chips"
- depends on 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 SENSORS_MAX6875
tristate "Maxim MAX6875 Power supply supervisor"
depends on EXPERIMENTAL
@@ -164,16 +151,6 @@ config SENSORS_TSL2550
This driver can also be built as a module. If so, the module
will be called tsl2550.
-config MENELAUS
- bool "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 MCU_MPC8349EMITX
tristate "MPC8349E-mITX MCU driver"
depends on I2C && PPC_83xx
diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile
index 23d2a31b0a64..8b95f41a5001 100644
--- a/drivers/i2c/chips/Makefile
+++ b/drivers/i2c/chips/Makefile
@@ -19,8 +19,6 @@ obj-$(CONFIG_SENSORS_PCF8574) += pcf8574.o
obj-$(CONFIG_PCF8575) += pcf8575.o
obj-$(CONFIG_SENSORS_PCF8591) += pcf8591.o
obj-$(CONFIG_ISP1301_OMAP) += isp1301_omap.o
-obj-$(CONFIG_TPS65010) += tps65010.o
-obj-$(CONFIG_MENELAUS) += menelaus.o
obj-$(CONFIG_SENSORS_TSL2550) += tsl2550.o
obj-$(CONFIG_MCU_MPC8349EMITX) += mcu_mpc8349emitx.o
diff --git a/drivers/i2c/chips/menelaus.c b/drivers/i2c/chips/menelaus.c
deleted file mode 100644
index 4b364bae6b3e..000000000000
--- a/drivers/i2c/chips/menelaus.c
+++ /dev/null
@@ -1,1285 +0,0 @@
-/*
- * 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)
- return -EINVAL;
-
- dev_dbg(&c->dev, "Setting VCORE to %d mV (val 0x%02x)\n", mV, val);
-
- /* Set SW mode and the voltage in one go. */
- mutex_lock(&the_menelaus->lock);
- ret = menelaus_write_reg(MENELAUS_VCORE_CTRL1, val);
- if (ret == 0)
- the_menelaus->vcore_hw_mode = 0;
- mutex_unlock(&the_menelaus->lock);
- msleep(1);
-
- return ret;
-}
-
-int menelaus_set_vcore_hw(unsigned int roof_mV, unsigned int floor_mV)
-{
- int fval, rval, val, ret;
- struct i2c_client *c = the_menelaus->client;
-
- rval = menelaus_get_vtg_value(roof_mV, vcore_values,
- ARRAY_SIZE(vcore_values));
- if (rval < 0)
- return -EINVAL;
- fval = menelaus_get_vtg_value(floor_mV, vcore_values,
- ARRAY_SIZE(vcore_values));
- if (fval < 0)
- return -EINVAL;
-
- dev_dbg(&c->dev, "Setting VCORE FLOOR to %d mV and ROOF to %d mV\n",
- floor_mV, roof_mV);
-
- mutex_lock(&the_menelaus->lock);
- ret = menelaus_write_reg(MENELAUS_VCORE_CTRL3, fval);
- if (ret < 0)
- goto out;
- ret = menelaus_write_reg(MENELAUS_VCORE_CTRL4, rval);
- if (ret < 0)
- goto out;
- if (!the_menelaus->vcore_hw_mode) {
- val = menelaus_read_reg(MENELAUS_VCORE_CTRL1);
- /* HW mode, turn OFF byte comparator */
- val |= ((1 << 7) | (1 << 5));
- ret = menelaus_write_reg(MENELAUS_VCORE_CTRL1, val);
- the_menelaus->vcore_hw_mode = 1;
- }
- msleep(1);
-out:
- mutex_unlock(&the_menelaus->lock);
- return ret;
-}
-
-static const struct menelaus_vtg vmem_vtg = {
- .name = "VMEM",
- .vtg_reg = MENELAUS_LDO_CTRL1,
- .vtg_shift = 0,
- .vtg_bits = 2,
- .mode_reg = MENELAUS_LDO_CTRL3,
-};
-
-static const struct menelaus_vtg_value vmem_values[] = {
- { 1500, 0 },
- { 1800, 1 },
- { 1900, 2 },
- { 2500, 3 },
-};
-
-int menelaus_set_vmem(unsigned int mV)
-{
- int val;
-
- if (mV == 0)
- return menelaus_set_voltage(&vmem_vtg, 0, 0, 0);
-
- val = menelaus_get_vtg_value(mV, vmem_values, ARRAY_SIZE(vmem_values));
- if (val < 0)
- return -EINVAL;
- return menelaus_set_voltage(&vmem_vtg, mV, val, 0x02);
-}
-EXPORT_SYMBOL(menelaus_set_vmem);
-
-static const struct menelaus_vtg vio_vtg = {
- .name = "VIO",
- .vtg_reg = MENELAUS_LDO_CTRL1,
- .vtg_shift = 2,
- .vtg_bits = 2,
- .mode_reg = MENELAUS_LDO_CTRL4,
-};
-
-static const struct menelaus_vtg_value vio_values[] = {
- { 1500, 0 },
- { 1800, 1 },
- { 2500, 2 },
- { 2800, 3 },
-};
-
-int menelaus_set_vio(unsigned int mV)
-{
- int val;
-
- if (mV == 0)
- return menelaus_set_voltage(&vio_vtg, 0, 0, 0);
-
- val = menelaus_get_vtg_value(mV, vio_values, ARRAY_SIZE(vio_values));
- if (val < 0)
- return -EINVAL;
- return menelaus_set_voltage(&vio_vtg, mV, val, 0x02);
-}
-EXPORT_SYMBOL(menelaus_set_vio);
-
-static const struct menelaus_vtg_value vdcdc_values[] = {
- { 1500, 0 },
- { 1800, 1 },
- { 2000, 2 },
- { 2200, 3 },
- { 2400, 4 },
- { 2800, 5 },
- { 3000, 6 },
- { 3300, 7 },
-};
-
-static const struct menelaus_vtg vdcdc2_vtg = {
- .name = "VDCDC2",
- .vtg_reg = MENELAUS_DCDC_CTRL1,
- .vtg_shift = 0,
- .vtg_bits = 3,
- .mode_reg = MENELAUS_DCDC_CTRL2,
-};
-
-static const struct menelaus_vtg vdcdc3_vtg = {
- .name = "VDCDC3",
- .vtg_reg = MENELAUS_DCDC_CTRL1,
- .vtg_shift = 3,
- .vtg_bits = 3,
- .mode_reg = MENELAUS_DCDC_CTRL3,
-};
-
-int menelaus_set_vdcdc(int dcdc, unsigned int mV)
-{
- const struct menelaus_vtg *vtg;
- int val;
-
- if (dcdc != 2 && dcdc != 3)
- return -EINVAL;
- if (dcdc == 2)
- vtg = &vdcdc2_vtg;
- else
- vtg = &vdcdc3_vtg;
-
- if (mV == 0)
- return menelaus_set_voltage(vtg, 0, 0, 0);
-
- val = menelaus_get_vtg_value(mV, vdcdc_values,
- ARRAY_SIZE(vdcdc_values));
- if (val < 0)
- return -EINVAL;
- return menelaus_set_voltage(vtg, mV, val, 0x03);
-}
-
-static const struct menelaus_vtg_value vmmc_values[] = {
- { 1850, 0 },
- { 2800, 1 },
- { 3000, 2 },
- { 3100, 3 },
-};
-
-static const struct menelaus_vtg vmmc_vtg = {
- .name = "VMMC",
- .vtg_reg = MENELAUS_LDO_CTRL1,
- .vtg_shift = 6,
- .vtg_bits = 2,
- .mode_reg = MENELAUS_LDO_CTRL7,
-};
-
-int menelaus_set_vmmc(unsigned int mV)
-{
- int val;
-
- if (mV == 0)
- return menelaus_set_voltage(&vmmc_vtg, 0, 0, 0);
-
- val = menelaus_get_vtg_value(mV, vmmc_values, ARRAY_SIZE(vmmc_values));
- if (val < 0)
- return -EINVAL;
- return menelaus_set_voltage(&vmmc_vtg, mV, val, 0x02);
-}
-EXPORT_SYMBOL(menelaus_set_vmmc);
-
-
-static const struct menelaus_vtg_value vaux_values[] = {
- { 1500, 0 },
- { 1800, 1 },
- { 2500, 2 },
- { 2800, 3 },
-};
-
-static const struct menelaus_vtg vaux_vtg = {
- .name = "VAUX",
- .vtg_reg = MENELAUS_LDO_CTRL1,
- .vtg_shift = 4,
- .vtg_bits = 2,
- .mode_reg = MENELAUS_LDO_CTRL6,
-};
-
-int menelaus_set_vaux(unsigned int mV)
-{
- int val;
-
- if (mV == 0)
- return menelaus_set_voltage(&vaux_vtg, 0, 0, 0);
-
- val = menelaus_get_vtg_value(mV, vaux_values, ARRAY_SIZE(vaux_values));
- if (val < 0)
- return -EINVAL;
- return menelaus_set_voltage(&vaux_vtg, mV, val, 0x02);
-}
-EXPORT_SYMBOL(menelaus_set_vaux);
-
-int menelaus_get_slot_pin_states(void)
-{
- return menelaus_read_reg(MENELAUS_MCT_PIN_ST);
-}
-EXPORT_SYMBOL(menelaus_get_slot_pin_states);
-
-int menelaus_set_regulator_sleep(int enable, u32 val)
-{
- int t, ret;
- struct i2c_client *c = the_menelaus->client;
-
- mutex_lock(&the_menelaus->lock);
- ret = menelaus_write_reg(MENELAUS_SLEEP_CTRL2, val);
- if (ret < 0)
- goto out;
-
- dev_dbg(&c->dev, "regulator sleep configuration: %02x\n", val);
-
- ret = menelaus_read_reg(MENELAUS_GPIO_CTRL);
- if (ret < 0)
- goto out;
- t = ((1 << 6) | 0x04);
- if (enable)
- ret |= t;
- else
- ret &= ~t;
- ret = menelaus_write_reg(MENELAUS_GPIO_CTRL, ret);
-out:
- mutex_unlock(&the_menelaus->lock);
- return ret;
-}
-
-/*-----------------------------------------------------------------------*/
-
-/* Handles Menelaus interrupts. Does not run in interrupt context */
-static void menelaus_work(struct work_struct *_menelaus)
-{
- struct menelaus_chip *menelaus =
- container_of(_menelaus, struct menelaus_chip, work);
- void (*handler)(struct menelaus_chip *menelaus);
-
- while (1) {
- unsigned isr;
-
- isr = (menelaus_read_reg(MENELAUS_INT_STATUS2)
- & ~menelaus->mask2) << 8;
- isr |= menelaus_read_reg(MENELAUS_INT_STATUS1)
- & ~menelaus->mask1;
- if (!isr)
- break;
-
- while (isr) {
- int irq = fls(isr) - 1;
- isr &= ~(1 << irq);
-
- mutex_lock(&menelaus->lock);
- menelaus_disable_irq(irq);
- menelaus_ack_irq(irq);
- handler = menelaus->handlers[irq];
- if (handler)
- handler(menelaus);
- menelaus_enable_irq(irq);
- mutex_unlock(&menelaus->lock);
- }
- }
- enable_irq(menelaus->client->irq);
-}
-
-/*
- * We cannot use I2C in interrupt context, so we just schedule work.
- */
-static irqreturn_t menelaus_irq(int irq, void *_menelaus)
-{
- struct menelaus_chip *menelaus = _menelaus;
-
- disable_irq_nosync(irq);
- (void)schedule_work(&menelaus->work);
-
- return IRQ_HANDLED;
-}
-
-/*-----------------------------------------------------------------------*/
-
-/*
- * The RTC needs to be set once, then it runs on backup battery power.
- * It supports alarms, including system wake alarms (from some modes);
- * and 1/second IRQs if requested.
- */
-#ifdef CONFIG_RTC_DRV_TWL92330
-
-#define RTC_CTRL_RTC_EN (1 << 0)
-#define RTC_CTRL_AL_EN (1 << 1)
-#define RTC_CTRL_MODE12 (1 << 2)
-#define RTC_CTRL_EVERY_MASK (3 << 3)
-#define RTC_CTRL_EVERY_SEC (0 << 3)
-#define RTC_CTRL_EVERY_MIN (1 << 3)
-#define RTC_CTRL_EVERY_HR (2 << 3)
-#define RTC_CTRL_EVERY_DAY (3 << 3)
-
-#define RTC_UPDATE_EVERY 0x08
-
-#define RTC_HR_PM (1 << 7)
-
-static void menelaus_to_time(char *regs, struct rtc_time *t)
-{
- t->tm_sec = bcd2bin(regs[0]);
- t->tm_min = bcd2bin(regs[1]);
- if (the_menelaus->rtc_control & RTC_CTRL_MODE12) {
- t->tm_hour = bcd2bin(regs[2] & 0x1f) - 1;
- if (regs[2] & RTC_HR_PM)
- t->tm_hour += 12;
- } else
- t->tm_hour = bcd2bin(regs[2] & 0x3f);
- t->tm_mday = bcd2bin(regs[3]);
- t->tm_mon = bcd2bin(regs[4]) - 1;
- t->tm_year = bcd2bin(regs[5]) + 100;
-}
-
-static int time_to_menelaus(struct rtc_time *t, int regnum)
-{
- int hour, status;
-
- status = menelaus_write_reg(regnum++, bin2bcd(t->tm_sec));
- if (status < 0)
- goto fail;
-
- status = menelaus_write_reg(regnum++, bin2bcd(t->tm_min));
- if (status < 0)
- goto fail;
-
- if (the_menelaus->rtc_control & RTC_CTRL_MODE12) {
- hour = t->tm_hour + 1;
- if (hour > 12)
- hour = RTC_HR_PM | bin2bcd(hour - 12);
- else
- hour = bin2bcd(hour);
- } else
- hour = bin2bcd(t->tm_hour);
- status = menelaus_write_reg(regnum++, hour);
- if (status < 0)
- goto fail;
-
- status = menelaus_write_reg(regnum++, bin2bcd(t->tm_mday));
- if (status < 0)
- goto fail;
-
- status = menelaus_write_reg(regnum++, bin2bcd(t->tm_mon + 1));
- if (status < 0)
- goto fail;
-
- status = menelaus_write_reg(regnum++, bin2bcd(t->tm_year - 100));
- if (status < 0)
- goto fail;
-
- return 0;
-fail:
- dev_err(&the_menelaus->client->dev, "rtc write reg %02x, err %d\n",
- --regnum, status);
- return status;
-}
-
-static int menelaus_read_time(struct device *dev, struct rtc_time *t)
-{
- struct i2c_msg msg[2];
- char regs[7];
- int status;
-
- /* block read date and time registers */
- regs[0] = MENELAUS_RTC_SEC;
-
- msg[0].addr = MENELAUS_I2C_ADDRESS;
- msg[0].flags = 0;
- msg[0].len = 1;
- msg[0].buf = regs;
-
- msg[1].addr = MENELAUS_I2C_ADDRESS;
- msg[1].flags = I2C_M_RD;
- msg[1].len = sizeof(regs);
- msg[1].buf = regs;
-
- status = i2c_transfer(the_menelaus->client->adapter, msg, 2);
- if (status != 2) {
- dev_err(dev, "%s error %d\n", "read", status);
- return -EIO;
- }
-
- menelaus_to_time(regs, t);
- t->tm_wday = bcd2bin(regs[6]);
-
- return 0;
-}
-
-static int menelaus_set_time(struct device *dev, struct rtc_time *t)
-{
- int status;
-
- /* write date and time registers */
- status = time_to_menelaus(t, MENELAUS_RTC_SEC);
- if (status < 0)
- return status;
- status = menelaus_write_reg(MENELAUS_RTC_WKDAY, bin2bcd(t->tm_wday));
- if (status < 0) {
- dev_err(&the_menelaus->client->dev, "rtc write reg %02x "
- "err %d\n", MENELAUS_RTC_WKDAY, status);
- return status;
- }
-
- /* now commit the write */
- status = menelaus_write_reg(MENELAUS_RTC_UPDATE, RTC_UPDATE_EVERY);
- if (status < 0)
- dev_err(&the_menelaus->client->dev, "rtc commit time, err %d\n",
- status);
-
- return 0;
-}
-
-static int menelaus_read_alarm(struct device *dev, struct rtc_wkalrm *w)
-{
- struct i2c_msg msg[2];
- char regs[6];
- int status;
-
- /* block read alarm registers */
- regs[0] = MENELAUS_RTC_AL_SEC;
-
- msg[0].addr = MENELAUS_I2C_ADDRESS;
- msg[0].flags = 0;
- msg[0].len = 1;
- msg[0].buf = regs;
-
- msg[1].addr = MENELAUS_I2C_ADDRESS;
- msg[1].flags = I2C_M_RD;
- msg[1].len = sizeof(regs);
- msg[1].buf = regs;
-
- status = i2c_transfer(the_menelaus->client->adapter, msg, 2);
- if (status != 2) {
- dev_err(dev, "%s error %d\n", "alarm read", status);
- return -EIO;
- }
-
- menelaus_to_time(regs, &w->time);
-
- w->enabled = !!(the_menelaus->rtc_control & RTC_CTRL_AL_EN);
-
- /* NOTE we *could* check if actually pending... */
- w->pending = 0;
-
- return 0;
-}
-
-static int menelaus_set_alarm(struct device *dev, struct rtc_wkalrm *w)
-{
- int status;
-
- if (the_menelaus->client->irq <= 0 && w->enabled)
- return -ENODEV;
-
- /* clear previous alarm enable */
- if (the_menelaus->rtc_control & RTC_CTRL_AL_EN) {
- the_menelaus->rtc_control &= ~RTC_CTRL_AL_EN;
- status = menelaus_write_reg(MENELAUS_RTC_CTRL,
- the_menelaus->rtc_control);
- if (status < 0)
- return status;
- }
-
- /* write alarm registers */
- status = time_to_menelaus(&w->time, MENELAUS_RTC_AL_SEC);
- if (status < 0)
- return status;
-
- /* enable alarm if requested */
- if (w->enabled) {
- the_menelaus->rtc_control |= RTC_CTRL_AL_EN;
- status = menelaus_write_reg(MENELAUS_RTC_CTRL,
- the_menelaus->rtc_control);
- }
-
- return status;
-}
-
-#ifdef CONFIG_RTC_INTF_DEV
-
-static void menelaus_rtc_update_work(struct menelaus_chip *m)
-{
- /* report 1/sec update */
- local_irq_disable();
- rtc_update_irq(m->rtc, 1, RTC_IRQF | RTC_UF);
- local_irq_enable();
-}
-
-static int menelaus_ioctl(struct device *dev, unsigned cmd, unsigned long arg)
-{
- int status;
-
- if (the_menelaus->client->irq <= 0)
- return -ENOIOCTLCMD;
-
- switch (cmd) {
- /* alarm IRQ */
- case RTC_AIE_ON:
- if (the_menelaus->rtc_control & RTC_CTRL_AL_EN)
- return 0;
- the_menelaus->rtc_control |= RTC_CTRL_AL_EN;
- break;
- case RTC_AIE_OFF:
- if (!(the_menelaus->rtc_control & RTC_CTRL_AL_EN))
- return 0;
- the_menelaus->rtc_control &= ~RTC_CTRL_AL_EN;
- break;
- /* 1/second "update" IRQ */
- case RTC_UIE_ON:
- if (the_menelaus->uie)
- return 0;
- status = menelaus_remove_irq_work(MENELAUS_RTCTMR_IRQ);
- status = menelaus_add_irq_work(MENELAUS_RTCTMR_IRQ,
- menelaus_rtc_update_work);
- if (status == 0)
- the_menelaus->uie = 1;
- return status;
- case RTC_UIE_OFF:
- if (!the_menelaus->uie)
- return 0;
- status = menelaus_remove_irq_work(MENELAUS_RTCTMR_IRQ);
- if (status == 0)
- the_menelaus->uie = 0;
- return status;
- default:
- return -ENOIOCTLCMD;
- }
- return menelaus_write_reg(MENELAUS_RTC_CTRL, the_menelaus->rtc_control);
-}
-
-#else
-#define menelaus_ioctl NULL
-#endif
-
-/* REVISIT no compensation register support ... */
-
-static const struct rtc_class_ops menelaus_rtc_ops = {
- .ioctl = menelaus_ioctl,
- .read_time = menelaus_read_time,
- .set_time = menelaus_set_time,
- .read_alarm = menelaus_read_alarm,
- .set_alarm = menelaus_set_alarm,
-};
-
-static void menelaus_rtc_alarm_work(struct menelaus_chip *m)
-{
- /* report alarm */
- local_irq_disable();
- rtc_update_irq(m->rtc, 1, RTC_IRQF | RTC_AF);
- local_irq_enable();
-
- /* then disable it; alarms are oneshot */
- the_menelaus->rtc_control &= ~RTC_CTRL_AL_EN;
- menelaus_write_reg(MENELAUS_RTC_CTRL, the_menelaus->rtc_control);
-}
-
-static inline void menelaus_rtc_init(struct menelaus_chip *m)
-{
- int alarm = (m->client->irq > 0);
-
- /* assume 32KDETEN pin is pulled high */
- if (!(menelaus_read_reg(MENELAUS_OSC_CTRL) & 0x80)) {
- dev_dbg(&m->client->dev, "no 32k oscillator\n");
- return;
- }
-
- /* support RTC alarm; it can issue wakeups */
- if (alarm) {
- if (menelaus_add_irq_work(MENELAUS_RTCALM_IRQ,
- menelaus_rtc_alarm_work) < 0) {
- dev_err(&m->client->dev, "can't handle RTC alarm\n");
- return;
- }
- device_init_wakeup(&m->client->dev, 1);
- }
-
- /* be sure RTC is enabled; allow 1/sec irqs; leave 12hr mode alone */
- m->rtc_control = menelaus_read_reg(MENELAUS_RTC_CTRL);
- if (!(m->rtc_control & RTC_CTRL_RTC_EN)
- || (m->rtc_control & RTC_CTRL_AL_EN)
- || (m->rtc_control & RTC_CTRL_EVERY_MASK)) {
- if (!(m->rtc_control & RTC_CTRL_RTC_EN)) {
- dev_warn(&m->client->dev, "rtc clock needs setting\n");
- m->rtc_control |= RTC_CTRL_RTC_EN;
- }
- m->rtc_control &= ~RTC_CTRL_EVERY_MASK;
- m->rtc_control &= ~RTC_CTRL_AL_EN;
- menelaus_write_reg(MENELAUS_RTC_CTRL, m->rtc_control);
- }
-
- m->rtc = rtc_device_register(DRIVER_NAME,
- &m->client->dev,
- &menelaus_rtc_ops, THIS_MODULE);
- if (IS_ERR(m->rtc)) {
- if (alarm) {
- menelaus_remove_irq_work(MENELAUS_RTCALM_IRQ);
- device_init_wakeup(&m->client->dev, 0);
- }
- dev_err(&m->client->dev, "can't register RTC: %d\n",
- (int) PTR_ERR(m->rtc));
- the_menelaus->rtc = NULL;
- }
-}
-
-#else
-
-static inline void menelaus_rtc_init(struct menelaus_chip *m)
-{
- /* nothing */
-}
-
-#endif
-
-/*-----------------------------------------------------------------------*/
-
-static struct i2c_driver menelaus_i2c_driver;
-
-static int menelaus_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct menelaus_chip *menelaus;
- int rev = 0, val;
- int err = 0;
- struct menelaus_platform_data *menelaus_pdata =
- client->dev.platform_data;
-
- if (the_menelaus) {
- dev_dbg(&client->dev, "only one %s for now\n",
- DRIVER_NAME);
- return -ENODEV;
- }
-
- menelaus = kzalloc(sizeof *menelaus, GFP_KERNEL);
- if (!menelaus)
- return -ENOMEM;
-
- i2c_set_clientdata(client, menelaus);
-
- the_menelaus = menelaus;
- menelaus->client = client;
-
- /* If a true probe check the device */
- rev = menelaus_read_reg(MENELAUS_REV);
- if (rev < 0) {
- pr_err(DRIVER_NAME ": device not found");
- err = -ENODEV;
- goto fail1;
- }
-
- /* Ack and disable all Menelaus interrupts */
- menelaus_write_reg(MENELAUS_INT_ACK1, 0xff);
- menelaus_write_reg(MENELAUS_INT_ACK2, 0xff);
- menelaus_write_reg(MENELAUS_INT_MASK1, 0xff);
- menelaus_write_reg(MENELAUS_INT_MASK2, 0xff);
- menelaus->mask1 = 0xff;
- menelaus->mask2 = 0xff;
-
- /* Set output buffer strengths */
- menelaus_write_reg(MENELAUS_MCT_CTRL1, 0x73);
-
- if (client->irq > 0) {
- err = request_irq(client->irq, menelaus_irq, IRQF_DISABLED,
- DRIVER_NAME, menelaus);
- if (err) {
- dev_dbg(&client->dev, "can't get IRQ %d, err %d\n",
- client->irq, err);
- goto fail1;
- }
- }
-
- mutex_init(&menelaus->lock);
- INIT_WORK(&menelaus->work, menelaus_work);
-
- pr_info("Menelaus rev %d.%d\n", rev >> 4, rev & 0x0f);
-
- val = menelaus_read_reg(MENELAUS_VCORE_CTRL1);
- if (val < 0)
- goto fail2;
- if (val & (1 << 7))
- menelaus->vcore_hw_mode = 1;
- else
- menelaus->vcore_hw_mode = 0;
-
- if (menelaus_pdata != NULL && menelaus_pdata->late_init != NULL) {
- err = menelaus_pdata->late_init(&client->dev);
- if (err < 0)
- goto fail2;
- }
-
- menelaus_rtc_init(menelaus);
-
- return 0;
-fail2:
- free_irq(client->irq, menelaus);
- flush_scheduled_work();
-fail1:
- kfree(menelaus);
- return err;
-}
-
-static int __exit menelaus_remove(struct i2c_client *client)
-{
- struct menelaus_chip *menelaus = i2c_get_clientdata(client);
-
- free_irq(client->irq, menelaus);
- kfree(menelaus);
- i2c_set_clientdata(client, NULL);
- the_menelaus = NULL;
- return 0;
-}
-
-static const struct i2c_device_id menelaus_id[] = {
- { "menelaus", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, menelaus_id);
-
-static struct i2c_driver menelaus_i2c_driver = {
- .driver = {
- .name = DRIVER_NAME,
- },
- .probe = menelaus_probe,
- .remove = __exit_p(menelaus_remove),
- .id_table = menelaus_id,
-};
-
-static int __init menelaus_init(void)
-{
- int res;
-
- res = i2c_add_driver(&menelaus_i2c_driver);
- if (res < 0) {
- pr_err(DRIVER_NAME ": driver registration failed\n");
- return res;
- }
-
- return 0;
-}
-
-static void __exit menelaus_exit(void)
-{
- i2c_del_driver(&menelaus_i2c_driver);
-
- /* FIXME: Shutdown menelaus parts that can be shut down */
-}
-
-MODULE_AUTHOR("Texas Instruments, Inc. (and others)");
-MODULE_DESCRIPTION("I2C interface for Menelaus.");
-MODULE_LICENSE("GPL");
-
-module_init(menelaus_init);
-module_exit(menelaus_exit);
diff --git a/drivers/i2c/chips/tps65010.c b/drivers/i2c/chips/tps65010.c
deleted file mode 100644
index acf8b9d5f575..000000000000
--- a/drivers/i2c/chips/tps65010.c
+++ /dev/null
@@ -1,1072 +0,0 @@
-/*
- * tps65010 - driver for tps6501x power management chips
- *
- * Copyright (C) 2004 Texas Instruments
- * Copyright (C) 2004-2005 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.
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/i2c.h>
-#include <linux/delay.h>
-#include <linux/workqueue.h>
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
-#include <linux/mutex.h>
-#include <linux/platform_device.h>
-
-#include <linux/i2c/tps65010.h>
-
-#include <asm/gpio.h>
-
-
-/*-------------------------------------------------------------------------*/
-
-#define DRIVER_VERSION "2 May 2005"
-#define DRIVER_NAME (tps65010_driver.driver.name)
-
-MODULE_DESCRIPTION("TPS6501x Power Management Driver");
-MODULE_LICENSE("GPL");
-
-static struct i2c_driver tps65010_driver;
-
-/*-------------------------------------------------------------------------*/
-
-/* This driver handles a family of multipurpose chips, which incorporate
- * voltage regulators, lithium ion/polymer battery charging, GPIOs, LEDs,
- * and other features often needed in portable devices like cell phones
- * or digital cameras.
- *
- * The tps65011 and tps65013 have different voltage settings compared
- * to tps65010 and tps65012. The tps65013 has a NO_CHG status/irq.
- * All except tps65010 have "wait" mode, possibly defaulted so that
- * battery-insert != device-on.
- *
- * We could distinguish between some models by checking VDCDC1.UVLO or
- * other registers, unless they've been changed already after powerup
- * as part of board setup by a bootloader.
- */
-enum tps_model {
- TPS65010,
- TPS65011,
- TPS65012,
- TPS65013,
-};
-
-struct tps65010 {
- struct i2c_client *client;
- struct mutex lock;
- struct delayed_work work;
- struct dentry *file;
- unsigned charging:1;
- unsigned por:1;
- unsigned model:8;
- u16 vbus;
- unsigned long flags;
-#define FLAG_VBUS_CHANGED 0
-#define FLAG_IRQ_ENABLE 1
-
- /* copies of last register state */
- u8 chgstatus, regstatus, chgconf;
- u8 nmask1, nmask2;
-
- u8 outmask;
- struct gpio_chip chip;
- struct platform_device *leds;
-};
-
-#define POWER_POLL_DELAY msecs_to_jiffies(5000)
-
-/*-------------------------------------------------------------------------*/
-
-#if defined(DEBUG) || defined(CONFIG_DEBUG_FS)
-
-static void dbg_chgstat(char *buf, size_t len, u8 chgstatus)
-{
- snprintf(buf, len, "%02x%s%s%s%s%s%s%s%s\n",
- chgstatus,
- (chgstatus & TPS_CHG_USB) ? " USB" : "",
- (chgstatus & TPS_CHG_AC) ? " AC" : "",
- (chgstatus & TPS_CHG_THERM) ? " therm" : "",
- (chgstatus & TPS_CHG_TERM) ? " done" :
- ((chgstatus & (TPS_CHG_USB|TPS_CHG_AC))
- ? " (charging)" : ""),
- (chgstatus & TPS_CHG_TAPER_TMO) ? " taper_tmo" : "",
- (chgstatus & TPS_CHG_CHG_TMO) ? " charge_tmo" : "",
- (chgstatus & TPS_CHG_PRECHG_TMO) ? " prechg_tmo" : "",
- (chgstatus & TPS_CHG_TEMP_ERR) ? " temp_err" : "");
-}
-
-static void dbg_regstat(char *buf, size_t len, u8 regstatus)
-{
- snprintf(buf, len, "%02x %s%s%s%s%s%s%s%s\n",
- regstatus,
- (regstatus & TPS_REG_ONOFF) ? "off" : "(on)",
- (regstatus & TPS_REG_COVER) ? " uncover" : "",
- (regstatus & TPS_REG_UVLO) ? " UVLO" : "",
- (regstatus & TPS_REG_NO_CHG) ? " NO_CHG" : "",
- (regstatus & TPS_REG_PG_LD02) ? " ld02_bad" : "",
- (regstatus & TPS_REG_PG_LD01) ? " ld01_bad" : "",
- (regstatus & TPS_REG_PG_MAIN) ? " main_bad" : "",
- (regstatus & TPS_REG_PG_CORE) ? " core_bad" : "");
-}
-
-static void dbg_chgconf(int por, char *buf, size_t len, u8 chgconfig)
-{
- const char *hibit;
-
- if (por)
- hibit = (chgconfig & TPS_CHARGE_POR)
- ? "POR=69ms" : "POR=1sec";
- else
- hibit = (chgconfig & TPS65013_AUA) ? "AUA" : "";
-
- snprintf(buf, len, "%02x %s%s%s AC=%d%% USB=%dmA %sCharge\n",
- chgconfig, hibit,
- (chgconfig & TPS_CHARGE_RESET) ? " reset" : "",
- (chgconfig & TPS_CHARGE_FAST) ? " fast" : "",
- ({int p; switch ((chgconfig >> 3) & 3) {
- case 3: p = 100; break;
- case 2: p = 75; break;
- case 1: p = 50; break;
- default: p = 25; break;
- }; p; }),
- (chgconfig & TPS_VBUS_CHARGING)
- ? ((chgconfig & TPS_VBUS_500MA) ? 500 : 100)
- : 0,
- (chgconfig & TPS_CHARGE_ENABLE) ? "" : "No");
-}
-
-#endif
-
-#ifdef DEBUG
-
-static void show_chgstatus(const char *label, u8 chgstatus)
-{
- char buf [100];
-
- dbg_chgstat(buf, sizeof buf, chgstatus);
- pr_debug("%s: %s %s", DRIVER_NAME, label, buf);
-}
-
-static void show_regstatus(const char *label, u8 regstatus)
-{
- char buf [100];
-
- dbg_regstat(buf, sizeof buf, regstatus);
- pr_debug("%s: %s %s", DRIVER_NAME, label, buf);
-}
-
-static void show_chgconfig(int por, const char *label, u8 chgconfig)
-{
- char buf [100];
-
- dbg_chgconf(por, buf, sizeof buf, chgconfig);
- pr_debug("%s: %s %s", DRIVER_NAME, label, buf);
-}
-
-#else
-
-static inline void show_chgstatus(const char *label, u8 chgstatus) { }
-static inline void show_regstatus(const char *label, u8 chgstatus) { }
-static inline void show_chgconfig(int por, const char *label, u8 chgconfig) { }
-
-#endif
-
-#ifdef CONFIG_DEBUG_FS
-
-static int dbg_show(struct seq_file *s, void *_)
-{
- struct tps65010 *tps = s->private;
- u8 value, v2;
- unsigned i;
- char buf[100];
- const char *chip;
-
- switch (tps->model) {
- case TPS65010: chip = "tps65010"; break;
- case TPS65011: chip = "tps65011"; break;
- case TPS65012: chip = "tps65012"; break;
- case TPS65013: chip = "tps65013"; break;
- default: chip = NULL; break;
- }
- seq_printf(s, "driver %s\nversion %s\nchip %s\n\n",
- DRIVER_NAME, DRIVER_VERSION, chip);
-
- mutex_lock(&tps->lock);
-
- /* FIXME how can we tell whether a battery is present?
- * likely involves a charge gauging chip (like BQ26501).
- */
-
- seq_printf(s, "%scharging\n\n", tps->charging ? "" : "(not) ");
-
-
- /* registers for monitoring battery charging and status; note
- * that reading chgstat and regstat may ack IRQs...
- */
- value = i2c_smbus_read_byte_data(tps->client, TPS_CHGCONFIG);
- dbg_chgconf(tps->por, buf, sizeof buf, value);
- seq_printf(s, "chgconfig %s", buf);
-
- value = i2c_smbus_read_byte_data(tps->client, TPS_CHGSTATUS);
- dbg_chgstat(buf, sizeof buf, value);
- seq_printf(s, "chgstat %s", buf);
- value = i2c_smbus_read_byte_data(tps->client, TPS_MASK1);
- dbg_chgstat(buf, sizeof buf, value);
- seq_printf(s, "mask1 %s", buf);
- /* ignore ackint1 */
-
- value = i2c_smbus_read_byte_data(tps->client, TPS_REGSTATUS);
- dbg_regstat(buf, sizeof buf, value);
- seq_printf(s, "regstat %s", buf);
- value = i2c_smbus_read_byte_data(tps->client, TPS_MASK2);
- dbg_regstat(buf, sizeof buf, value);
- seq_printf(s, "mask2 %s\n", buf);
- /* ignore ackint2 */
-
- (void) schedule_delayed_work(&tps->work, POWER_POLL_DELAY);
-
-
- /* VMAIN voltage, enable lowpower, etc */
- value = i2c_smbus_read_byte_data(tps->client, TPS_VDCDC1);
- seq_printf(s, "vdcdc1 %02x\n", value);
-
- /* VCORE voltage, vibrator on/off */
- value = i2c_smbus_read_byte_data(tps->client, TPS_VDCDC2);
- seq_printf(s, "vdcdc2 %02x\n", value);
-
- /* both LD0s, and their lowpower behavior */
- value = i2c_smbus_read_byte_data(tps->client, TPS_VREGS1);
- seq_printf(s, "vregs1 %02x\n\n", value);
-
-
- /* LEDs and GPIOs */
- value = i2c_smbus_read_byte_data(tps->client, TPS_LED1_ON);
- v2 = i2c_smbus_read_byte_data(tps->client, TPS_LED1_PER);
- seq_printf(s, "led1 %s, on=%02x, per=%02x, %d/%d msec\n",
- (value & 0x80)
- ? ((v2 & 0x80) ? "on" : "off")
- : ((v2 & 0x80) ? "blink" : "(nPG)"),
- value, v2,
- (value & 0x7f) * 10, (v2 & 0x7f) * 100);
-
- value = i2c_smbus_read_byte_data(tps->client, TPS_LED2_ON);
- v2 = i2c_smbus_read_byte_data(tps->client, TPS_LED2_PER);
- seq_printf(s, "led2 %s, on=%02x, per=%02x, %d/%d msec\n",
- (value & 0x80)
- ? ((v2 & 0x80) ? "on" : "off")
- : ((v2 & 0x80) ? "blink" : "off"),
- value, v2,
- (value & 0x7f) * 10, (v2 & 0x7f) * 100);
-
- value = i2c_smbus_read_byte_data(tps->client, TPS_DEFGPIO);
- v2 = i2c_smbus_read_byte_data(tps->client, TPS_MASK3);
- seq_printf(s, "defgpio %02x mask3 %02x\n", value, v2);
-
- for (i = 0; i < 4; i++) {
- if (value & (1 << (4 + i)))
- seq_printf(s, " gpio%d-out %s\n", i + 1,
- (value & (1 << i)) ? "low" : "hi ");
- else
- seq_printf(s, " gpio%d-in %s %s %s\n", i + 1,
- (value & (1 << i)) ? "hi " : "low",
- (v2 & (1 << i)) ? "no-irq" : "irq",
- (v2 & (1 << (4 + i))) ? "rising" : "falling");
- }
-
- mutex_unlock(&tps->lock);
- return 0;
-}
-
-static int dbg_tps_open(struct inode *inode, struct file *file)
-{
- return single_open(file, dbg_show, inode->i_private);
-}
-
-static const struct file_operations debug_fops = {
- .open = dbg_tps_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-#define DEBUG_FOPS &debug_fops
-
-#else
-#define DEBUG_FOPS NULL
-#endif
-
-/*-------------------------------------------------------------------------*/
-
-/* handle IRQS in a task context, so we can use I2C calls */
-static void tps65010_interrupt(struct tps65010 *tps)
-{
- u8 tmp = 0, mask, poll;
-
- /* IRQs won't trigger for certain events, but we can get
- * others by polling (normally, with external power applied).
- */
- poll = 0;
-
- /* regstatus irqs */
- if (tps->nmask2) {
- tmp = i2c_smbus_read_byte_data(tps->client, TPS_REGSTATUS);
- mask = tmp ^ tps->regstatus;
- tps->regstatus = tmp;
- mask &= tps->nmask2;
- } else
- mask = 0;
- if (mask) {
- tps->regstatus = tmp;
- /* may need to shut something down ... */
-
- /* "off" usually means deep sleep */
- if (tmp & TPS_REG_ONOFF) {
- pr_info("%s: power off button\n", DRIVER_NAME);
-#if 0
- /* REVISIT: this might need its own workqueue
- * plus tweaks including deadlock avoidance ...
- * also needs to get error handling and probably
- * an #ifdef CONFIG_HIBERNATION
- */
- hibernate();
-#endif
- poll = 1;
- }
- }
-
- /* chgstatus irqs */
- if (tps->nmask1) {
- tmp = i2c_smbus_read_byte_data(tps->client, TPS_CHGSTATUS);
- mask = tmp ^ tps->chgstatus;
- tps->chgstatus = tmp;
- mask &= tps->nmask1;
- } else
- mask = 0;
- if (mask) {
- unsigned charging = 0;
-
- show_chgstatus("chg/irq", tmp);
- if (tmp & (TPS_CHG_USB|TPS_CHG_AC))
- show_chgconfig(tps->por, "conf", tps->chgconf);
-
- /* Unless it was turned off or disabled, we charge any
- * battery whenever there's power available for it
- * and the charger hasn't been disabled.
- */
- if (!(tps->chgstatus & ~(TPS_CHG_USB|TPS_CHG_AC))
- && (tps->chgstatus & (TPS_CHG_USB|TPS_CHG_AC))
- && (tps->chgconf & TPS_CHARGE_ENABLE)
- ) {
- if (tps->chgstatus & TPS_CHG_USB) {
- /* VBUS options are readonly until reconnect */
- if (mask & TPS_CHG_USB)
- set_bit(FLAG_VBUS_CHANGED, &tps->flags);
- charging = 1;
- } else if (tps->chgstatus & TPS_CHG_AC)
- charging = 1;
- }
- if (charging != tps->charging) {
- tps->charging = charging;
- pr_info("%s: battery %scharging\n",
- DRIVER_NAME, charging ? "" :
- ((tps->chgstatus & (TPS_CHG_USB|TPS_CHG_AC))
- ? "NOT " : "dis"));
- }
- }
-
- /* always poll to detect (a) power removal, without tps65013
- * NO_CHG IRQ; or (b) restart of charging after stop.
- */
- if ((tps->model != TPS65013 || !tps->charging)
- && (tps->chgstatus & (TPS_CHG_USB|TPS_CHG_AC)))
- poll = 1;
- if (poll)
- (void) schedule_delayed_work(&tps->work, POWER_POLL_DELAY);
-
- /* also potentially gpio-in rise or fall */
-}
-
-/* handle IRQs and polling using keventd for now */
-static void tps65010_work(struct work_struct *work)
-{
- struct tps65010 *tps;
-
- tps = container_of(work, struct tps65010, work.work);
- mutex_lock(&tps->lock);
-
- tps65010_interrupt(tps);
-
- if (test_and_clear_bit(FLAG_VBUS_CHANGED, &tps->flags)) {
- int status;
- u8 chgconfig, tmp;
-
- chgconfig = i2c_smbus_read_byte_data(tps->client,
- TPS_CHGCONFIG);
- chgconfig &= ~(TPS_VBUS_500MA | TPS_VBUS_CHARGING);
- if (tps->vbus == 500)
- chgconfig |= TPS_VBUS_500MA | TPS_VBUS_CHARGING;
- else if (tps->vbus >= 100)
- chgconfig |= TPS_VBUS_CHARGING;
-
- status = i2c_smbus_write_byte_data(tps->client,
- TPS_CHGCONFIG, chgconfig);
-
- /* vbus update fails unless VBUS is connected! */
- tmp = i2c_smbus_read_byte_data(tps->client, TPS_CHGCONFIG);
- tps->chgconf = tmp;
- show_chgconfig(tps->por, "update vbus", tmp);
- }
-
- if (test_and_clear_bit(FLAG_IRQ_ENABLE, &tps->flags))
- enable_irq(tps->client->irq);
-
- mutex_unlock(&tps->lock);
-}
-
-static irqreturn_t tps65010_irq(int irq, void *_tps)
-{
- struct tps65010 *tps = _tps;
-
- disable_irq_nosync(irq);
- set_bit(FLAG_IRQ_ENABLE, &tps->flags);
- (void) schedule_work(&tps->work.work);
- return IRQ_HANDLED;
-}
-
-/*-------------------------------------------------------------------------*/
-
-/* offsets 0..3 == GPIO1..GPIO4
- * offsets 4..5 == LED1/nPG, LED2 (we set one of the non-BLINK modes)
- * offset 6 == vibrator motor driver
- */
-static void
-tps65010_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
-{
- if (offset < 4)
- tps65010_set_gpio_out_value(offset + 1, value);
- else if (offset < 6)
- tps65010_set_led(offset - 3, value ? ON : OFF);
- else
- tps65010_set_vib(value);
-}
-
-static int
-tps65010_output(struct gpio_chip *chip, unsigned offset, int value)
-{
- /* GPIOs may be input-only */
- if (offset < 4) {
- struct tps65010 *tps;
-
- tps = container_of(chip, struct tps65010, chip);
- if (!(tps->outmask & (1 << offset)))
- return -EINVAL;
- tps65010_set_gpio_out_value(offset + 1, value);
- } else if (offset < 6)
- tps65010_set_led(offset - 3, value ? ON : OFF);
- else
- tps65010_set_vib(value);
-
- return 0;
-}
-
-static int tps65010_gpio_get(struct gpio_chip *chip, unsigned offset)
-{
- int value;
- struct tps65010 *tps;
-
- tps = container_of(chip, struct tps65010, chip);
-
- if (offset < 4) {
- value = i2c_smbus_read_byte_data(tps->client, TPS_DEFGPIO);
- if (value < 0)
- return 0;
- if (value & (1 << (offset + 4))) /* output */
- return !(value & (1 << offset));
- else /* input */
- return (value & (1 << offset));
- }
-
- /* REVISIT we *could* report LED1/nPG and LED2 state ... */
- return 0;
-}
-
-
-/*-------------------------------------------------------------------------*/
-
-static struct tps65010 *the_tps;
-
-static int __exit tps65010_remove(struct i2c_client *client)
-{
- struct tps65010 *tps = i2c_get_clientdata(client);
- struct tps65010_board *board = client->dev.platform_data;
-
- if (board && board->teardown) {
- int status = board->teardown(client, board->context);
- if (status < 0)
- dev_dbg(&client->dev, "board %s %s err %d\n",
- "teardown", client->name, status);
- }
- if (client->irq > 0)
- free_irq(client->irq, tps);
- cancel_delayed_work(&tps->work);
- flush_scheduled_work();
- debugfs_remove(tps->file);
- kfree(tps);
- i2c_set_clientdata(client, NULL);
- the_tps = NULL;
- return 0;
-}
-
-static int tps65010_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct tps65010 *tps;
- int status;
- struct tps65010_board *board = client->dev.platform_data;
-
- if (the_tps) {
- dev_dbg(&client->dev, "only one tps6501x chip allowed\n");
- return -ENODEV;
- }
-
- if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
- return -EINVAL;
-
- tps = kzalloc(sizeof *tps, GFP_KERNEL);
- if (!tps)
- return -ENOMEM;
-
- mutex_init(&tps->lock);
- INIT_DELAYED_WORK(&tps->work, tps65010_work);
- tps->client = client;
- tps->model = id->driver_data;
-
- /* the IRQ is active low, but many gpio lines can't support that
- * so this driver uses falling-edge triggers instead.
- */
- if (client->irq > 0) {
- status = request_irq(client->irq, tps65010_irq,
- IRQF_SAMPLE_RANDOM | IRQF_TRIGGER_FALLING,
- DRIVER_NAME, tps);
- if (status < 0) {
- dev_dbg(&client->dev, "can't get IRQ %d, err %d\n",
- client->irq, status);
- goto fail1;
- }
- /* annoying race here, ideally we'd have an option
- * to claim the irq now and enable it later.
- * FIXME genirq IRQF_NOAUTOEN now solves that ...
- */
- disable_irq(client->irq);
- set_bit(FLAG_IRQ_ENABLE, &tps->flags);
- } else
- dev_warn(&client->dev, "IRQ not configured!\n");
-
-
- switch (tps->model) {
- case TPS65010:
- case TPS65012:
- tps->por = 1;
- break;
- /* else CHGCONFIG.POR is replaced by AUA, enabling a WAIT mode */
- }
- tps->chgconf = i2c_smbus_read_byte_data(client, TPS_CHGCONFIG);
- show_chgconfig(tps->por, "conf/init", tps->chgconf);
-
- show_chgstatus("chg/init",
- i2c_smbus_read_byte_data(client, TPS_CHGSTATUS));
- show_regstatus("reg/init",
- i2c_smbus_read_byte_data(client, TPS_REGSTATUS));
-
- pr_debug("%s: vdcdc1 0x%02x, vdcdc2 %02x, vregs1 %02x\n", DRIVER_NAME,
- i2c_smbus_read_byte_data(client, TPS_VDCDC1),
- i2c_smbus_read_byte_data(client, TPS_VDCDC2),
- i2c_smbus_read_byte_data(client, TPS_VREGS1));
- pr_debug("%s: defgpio 0x%02x, mask3 0x%02x\n", DRIVER_NAME,
- i2c_smbus_read_byte_data(client, TPS_DEFGPIO),
- i2c_smbus_read_byte_data(client, TPS_MASK3));
-
- i2c_set_clientdata(client, tps);
- the_tps = tps;
-
-#if defined(CONFIG_USB_GADGET) && !defined(CONFIG_USB_OTG)
- /* USB hosts can't draw VBUS. OTG devices could, later
- * when OTG infrastructure enables it. USB peripherals
- * could be relying on VBUS while booting, though.
- */
- tps->vbus = 100;
-#endif
-
- /* unmask the "interesting" irqs, then poll once to
- * kickstart monitoring, initialize shadowed status
- * registers, and maybe disable VBUS draw.
- */
- tps->nmask1 = ~0;
- (void) i2c_smbus_write_byte_data(client, TPS_MASK1, ~tps->nmask1);
-
- tps->nmask2 = TPS_REG_ONOFF;
- if (tps->model == TPS65013)
- tps->nmask2 |= TPS_REG_NO_CHG;
- (void) i2c_smbus_write_byte_data(client, TPS_MASK2, ~tps->nmask2);
-
- (void) i2c_smbus_write_byte_data(client, TPS_MASK3, 0x0f
- | i2c_smbus_read_byte_data(client, TPS_MASK3));
-
- tps65010_work(&tps->work.work);
-
- tps->file = debugfs_create_file(DRIVER_NAME, S_IRUGO, NULL,
- tps, DEBUG_FOPS);
-
- /* optionally register GPIOs */
- if (board && board->base > 0) {
- tps->outmask = board->outmask;
-
- tps->chip.label = client->name;
- tps->chip.dev = &client->dev;
- tps->chip.owner = THIS_MODULE;
-
- tps->chip.set = tps65010_gpio_set;
- tps->chip.direction_output = tps65010_output;
-
- /* NOTE: only partial support for inputs; nyet IRQs */
- tps->chip.get = tps65010_gpio_get;
-
- tps->chip.base = board->base;
- tps->chip.ngpio = 7;
- tps->chip.can_sleep = 1;
-
- status = gpiochip_add(&tps->chip);
- if (status < 0)
- dev_err(&client->dev, "can't add gpiochip, err %d\n",
- status);
- else if (board->setup) {
- status = board->setup(client, board->context);
- if (status < 0) {
- dev_dbg(&client->dev,
- "board %s %s err %d\n",
- "setup", client->name, status);
- status = 0;
- }
- }
- }
-
- return 0;
-fail1:
- kfree(tps);
- return status;
-}
-
-static const struct i2c_device_id tps65010_id[] = {
- { "tps65010", TPS65010 },
- { "tps65011", TPS65011 },
- { "tps65012", TPS65012 },
- { "tps65013", TPS65013 },
- { "tps65014", TPS65011 }, /* tps65011 charging at 6.5V max */
- { }
-};
-MODULE_DEVICE_TABLE(i2c, tps65010_id);
-
-static struct i2c_driver tps65010_driver = {
- .driver = {
- .name = "tps65010",
- },
- .probe = tps65010_probe,
- .remove = __exit_p(tps65010_remove),
- .id_table = tps65010_id,
-};
-
-/*-------------------------------------------------------------------------*/
-
-/* Draw from VBUS:
- * 0 mA -- DON'T DRAW (might supply power instead)
- * 100 mA -- usb unit load (slowest charge rate)
- * 500 mA -- usb high power (fast battery charge)
- */
-int tps65010_set_vbus_draw(unsigned mA)
-{
- unsigned long flags;
-
- if (!the_tps)
- return -ENODEV;
-
- /* assumes non-SMP */
- local_irq_save(flags);
- if (mA >= 500)
- mA = 500;
- else if (mA >= 100)
- mA = 100;
- else
- mA = 0;
- the_tps->vbus = mA;
- if ((the_tps->chgstatus & TPS_CHG_USB)
- && test_and_set_bit(
- FLAG_VBUS_CHANGED, &the_tps->flags)) {
- /* gadget drivers call this in_irq() */
- (void) schedule_work(&the_tps->work.work);
- }
- local_irq_restore(flags);
-
- return 0;
-}
-EXPORT_SYMBOL(tps65010_set_vbus_draw);
-
-/*-------------------------------------------------------------------------*/
-/* tps65010_set_gpio_out_value parameter:
- * gpio: GPIO1, GPIO2, GPIO3 or GPIO4
- * value: LOW or HIGH
- */
-int tps65010_set_gpio_out_value(unsigned gpio, unsigned value)
-{
- int status;
- unsigned defgpio;
-
- if (!the_tps)
- return -ENODEV;
- if ((gpio < GPIO1) || (gpio > GPIO4))
- return -EINVAL;
-
- mutex_lock(&the_tps->lock);
-
- defgpio = i2c_smbus_read_byte_data(the_tps->client, TPS_DEFGPIO);
-
- /* Configure GPIO for output */
- defgpio |= 1 << (gpio + 3);
-
- /* Writing 1 forces a logic 0 on that GPIO and vice versa */
- switch (value) {
- case LOW:
- defgpio |= 1 << (gpio - 1); /* set GPIO low by writing 1 */
- break;
- /* case HIGH: */
- default:
- defgpio &= ~(1 << (gpio - 1)); /* set GPIO high by writing 0 */
- break;
- }
-
- status = i2c_smbus_write_byte_data(the_tps->client,
- TPS_DEFGPIO, defgpio);
-
- pr_debug("%s: gpio%dout = %s, defgpio 0x%02x\n", DRIVER_NAME,
- gpio, value ? "high" : "low",
- i2c_smbus_read_byte_data(the_tps->client, TPS_DEFGPIO));
-
- mutex_unlock(&the_tps->lock);
- return status;
-}
-EXPORT_SYMBOL(tps65010_set_gpio_out_value);
-
-/*-------------------------------------------------------------------------*/
-/* tps65010_set_led parameter:
- * led: LED1 or LED2
- * mode: ON, OFF or BLINK
- */
-int tps65010_set_led(unsigned led, unsigned mode)
-{
- int status;
- unsigned led_on, led_per, offs;
-
- if (!the_tps)
- return -ENODEV;
-
- if (led == LED1)
- offs = 0;
- else {
- offs = 2;
- led = LED2;
- }
-
- mutex_lock(&the_tps->lock);
-
- pr_debug("%s: led%i_on 0x%02x\n", DRIVER_NAME, led,
- i2c_smbus_read_byte_data(the_tps->client,
- TPS_LED1_ON + offs));
-
- pr_debug("%s: led%i_per 0x%02x\n", DRIVER_NAME, led,
- i2c_smbus_read_byte_data(the_tps->client,
- TPS_LED1_PER + offs));
-
- switch (mode) {
- case OFF:
- led_on = 1 << 7;
- led_per = 0 << 7;
- break;
- case ON:
- led_on = 1 << 7;
- led_per = 1 << 7;
- break;
- case BLINK:
- led_on = 0x30 | (0 << 7);
- led_per = 0x08 | (1 << 7);
- break;
- default:
- printk(KERN_ERR "%s: Wrong mode parameter for set_led()\n",
- DRIVER_NAME);
- mutex_unlock(&the_tps->lock);
- return -EINVAL;
- }
-
- status = i2c_smbus_write_byte_data(the_tps->client,
- TPS_LED1_ON + offs, led_on);
-
- if (status != 0) {
- printk(KERN_ERR "%s: Failed to write led%i_on register\n",
- DRIVER_NAME, led);
- mutex_unlock(&the_tps->lock);
- return status;
- }
-
- pr_debug("%s: led%i_on 0x%02x\n", DRIVER_NAME, led,
- i2c_smbus_read_byte_data(the_tps->client, TPS_LED1_ON + offs));
-
- status = i2c_smbus_write_byte_data(the_tps->client,
- TPS_LED1_PER + offs, led_per);
-
- if (status != 0) {
- printk(KERN_ERR "%s: Failed to write led%i_per register\n",
- DRIVER_NAME, led);
- mutex_unlock(&the_tps->lock);
- return status;
- }
-
- pr_debug("%s: led%i_per 0x%02x\n", DRIVER_NAME, led,
- i2c_smbus_read_byte_data(the_tps->client,
- TPS_LED1_PER + offs));
-
- mutex_unlock(&the_tps->lock);
-
- return status;
-}
-EXPORT_SYMBOL(tps65010_set_led);
-
-/*-------------------------------------------------------------------------*/
-/* tps65010_set_vib parameter:
- * value: ON or OFF
- */
-int tps65010_set_vib(unsigned value)
-{
- int status;
- unsigned vdcdc2;
-
- if (!the_tps)
- return -ENODEV;
-
- mutex_lock(&the_tps->lock);
-
- vdcdc2 = i2c_smbus_read_byte_data(the_tps->client, TPS_VDCDC2);
- vdcdc2 &= ~(1 << 1);
- if (value)
- vdcdc2 |= (1 << 1);
- status = i2c_smbus_write_byte_data(the_tps->client,
- TPS_VDCDC2, vdcdc2);
-
- pr_debug("%s: vibrator %s\n", DRIVER_NAME, value ? "on" : "off");
-
- mutex_unlock(&the_tps->lock);
- return status;
-}
-EXPORT_SYMBOL(tps65010_set_vib);
-
-/*-------------------------------------------------------------------------*/
-/* tps65010_set_low_pwr parameter:
- * mode: ON or OFF
- */
-int tps65010_set_low_pwr(unsigned mode)
-{
- int status;
- unsigned vdcdc1;
-
- if (!the_tps)
- return -ENODEV;
-
- mutex_lock(&the_tps->lock);
-
- pr_debug("%s: %s low_pwr, vdcdc1 0x%02x\n", DRIVER_NAME,
- mode ? "enable" : "disable",
- i2c_smbus_read_byte_data(the_tps->client, TPS_VDCDC1));
-
- vdcdc1 = i2c_smbus_read_byte_data(the_tps->client, TPS_VDCDC1);
-
- switch (mode) {
- case OFF:
- vdcdc1 &= ~TPS_ENABLE_LP; /* disable ENABLE_LP bit */
- break;
- /* case ON: */
- default:
- vdcdc1 |= TPS_ENABLE_LP; /* enable ENABLE_LP bit */
- break;
- }
-
- status = i2c_smbus_write_byte_data(the_tps->client,
- TPS_VDCDC1, vdcdc1);
-
- if (status != 0)
- printk(KERN_ERR "%s: Failed to write vdcdc1 register\n",
- DRIVER_NAME);
- else
- pr_debug("%s: vdcdc1 0x%02x\n", DRIVER_NAME,
- i2c_smbus_read_byte_data(the_tps->client, TPS_VDCDC1));
-
- mutex_unlock(&the_tps->lock);
-
- return status;
-}
-EXPORT_SYMBOL(tps65010_set_low_pwr);
-
-/*-------------------------------------------------------------------------*/
-/* tps65010_config_vregs1 parameter:
- * value to be written to VREGS1 register
- * Note: The complete register is written, set all bits you need
- */
-int tps65010_config_vregs1(unsigned value)
-{
- int status;
-
- if (!the_tps)
- return -ENODEV;
-
- mutex_lock(&the_tps->lock);
-
- pr_debug("%s: vregs1 0x%02x\n", DRIVER_NAME,
- i2c_smbus_read_byte_data(the_tps->client, TPS_VREGS1));
-
- status = i2c_smbus_write_byte_data(the_tps->client,
- TPS_VREGS1, value);
-
- if (status != 0)
- printk(KERN_ERR "%s: Failed to write vregs1 register\n",
- DRIVER_NAME);
- else
- pr_debug("%s: vregs1 0x%02x\n", DRIVER_NAME,
- i2c_smbus_read_byte_data(the_tps->client, TPS_VREGS1));
-
- mutex_unlock(&the_tps->lock);
-
- return status;
-}
-EXPORT_SYMBOL(tps65010_config_vregs1);
-
-/*-------------------------------------------------------------------------*/
-/* tps65013_set_low_pwr parameter:
- * mode: ON or OFF
- */
-
-/* FIXME: Assumes AC or USB power is present. Setting AUA bit is not
- required if power supply is through a battery */
-
-int tps65013_set_low_pwr(unsigned mode)
-{
- int status;
- unsigned vdcdc1, chgconfig;
-
- if (!the_tps || the_tps->por)
- return -ENODEV;
-
- mutex_lock(&the_tps->lock);
-
- pr_debug("%s: %s low_pwr, chgconfig 0x%02x vdcdc1 0x%02x\n",
- DRIVER_NAME,
- mode ? "enable" : "disable",
- i2c_smbus_read_byte_data(the_tps->client, TPS_CHGCONFIG),
- i2c_smbus_read_byte_data(the_tps->client, TPS_VDCDC1));
-
- chgconfig = i2c_smbus_read_byte_data(the_tps->client, TPS_CHGCONFIG);
- vdcdc1 = i2c_smbus_read_byte_data(the_tps->client, TPS_VDCDC1);
-
- switch (mode) {
- case OFF:
- chgconfig &= ~TPS65013_AUA; /* disable AUA bit */
- vdcdc1 &= ~TPS_ENABLE_LP; /* disable ENABLE_LP bit */
- break;
- /* case ON: */
- default:
- chgconfig |= TPS65013_AUA; /* enable AUA bit */
- vdcdc1 |= TPS_ENABLE_LP; /* enable ENABLE_LP bit */
- break;
- }
-
- status = i2c_smbus_write_byte_data(the_tps->client,
- TPS_CHGCONFIG, chgconfig);
- if (status != 0) {
- printk(KERN_ERR "%s: Failed to write chconfig register\n",
- DRIVER_NAME);
- mutex_unlock(&the_tps->lock);
- return status;
- }
-
- chgconfig = i2c_smbus_read_byte_data(the_tps->client, TPS_CHGCONFIG);
- the_tps->chgconf = chgconfig;
- show_chgconfig(0, "chgconf", chgconfig);
-
- status = i2c_smbus_write_byte_data(the_tps->client,
- TPS_VDCDC1, vdcdc1);
-
- if (status != 0)
- printk(KERN_ERR "%s: Failed to write vdcdc1 register\n",
- DRIVER_NAME);
- else
- pr_debug("%s: vdcdc1 0x%02x\n", DRIVER_NAME,
- i2c_smbus_read_byte_data(the_tps->client, TPS_VDCDC1));
-
- mutex_unlock(&the_tps->lock);
-
- return status;
-}
-EXPORT_SYMBOL(tps65013_set_low_pwr);
-
-/*-------------------------------------------------------------------------*/
-
-static int __init tps_init(void)
-{
- u32 tries = 3;
- int status = -ENODEV;
-
- printk(KERN_INFO "%s: version %s\n", DRIVER_NAME, DRIVER_VERSION);
-
- /* some boards have startup glitches */
- while (tries--) {
- status = i2c_add_driver(&tps65010_driver);
- if (the_tps)
- break;
- i2c_del_driver(&tps65010_driver);
- if (!tries) {
- printk(KERN_ERR "%s: no chip?\n", DRIVER_NAME);
- return -ENODEV;
- }
- pr_debug("%s: re-probe ...\n", DRIVER_NAME);
- msleep(10);
- }
-
- return status;
-}
-/* NOTE: this MUST be initialized before the other parts of the system
- * that rely on it ... but after the i2c bus on which this relies.
- * That is, much earlier than on PC-type systems, which don't often use
- * I2C as a core system bus.
- */
-subsys_initcall(tps_init);
-
-static void __exit tps_exit(void)
-{
- i2c_del_driver(&tps65010_driver);
-}
-module_exit(tps_exit);
-