* [PATCH 1/2] mfd: add TI TPS80031 mfd core driver
2012-11-05 9:44 [PATCH 0/2] tps80031: Add mfd and regulator driver Laxman Dewangan
@ 2012-11-05 9:44 ` Laxman Dewangan
2012-11-05 10:31 ` Mark Brown
2012-11-05 9:44 ` [PATCH 2/2] regulator: tps80031: add regulator driver for tps80031 Laxman Dewangan
1 sibling, 1 reply; 8+ messages in thread
From: Laxman Dewangan @ 2012-11-05 9:44 UTC (permalink / raw)
To: sameo, broonie, lrg; +Cc: linux-kernel, Laxman Dewangan
TPS80031/ TPS80032 Fully Integrated Power Management with Power
Path and Battery Charger. The device provides five configurable
step-down converters, 11 general purpose LDOs, USB OTG Module,
ADC, RTC, 2 PWM, System Voltage Regulator/Battery Charger with
Power Path from USB, 32K clock generator.
Add the mfd core driver for TPS80031/TPS80032.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
---
drivers/mfd/Kconfig | 14 +
drivers/mfd/Makefile | 1 +
drivers/mfd/tps80031.c | 580 ++++++++++++++++++++++++++++++++++++++++++
include/linux/mfd/tps80031.h | 569 +++++++++++++++++++++++++++++++++++++++++
4 files changed, 1164 insertions(+), 0 deletions(-)
create mode 100644 drivers/mfd/tps80031.c
create mode 100644 include/linux/mfd/tps80031.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 637bcdf..a1caf81 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -244,6 +244,20 @@ config MFD_TPS65912_SPI
If you say yes here you get support for the TPS65912 series of
PM chips with SPI interface.
+config MFD_TPS80031
+ bool "TI TPS80031/TPS80032 Power Management chips"
+ depends on I2C && GENERIC_HARDIRQS
+ select MFD_CORE
+ select REGMAP_I2C
+ select IRQ_DOMAIN
+ help
+ If you say yes here you get support for the Texas Instruments
+ TPS80031/ TPS80032 Fully Integrated Power Management with Power
+ Path and Battery Charger. The device provides five configurable
+ step-down converters, 11 general purpose LDOs, USB OTG Module,
+ ADC, RTC, 2 PWM, System Voltage Regulator/Battery Charger with
+ Power Path from USB, 32K clock generator.
+
config MENELAUS
bool "Texas Instruments TWL92330/Menelaus PM chip"
depends on I2C=y && ARCH_OMAP2
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 296817c..3595f2d 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -57,6 +57,7 @@ tps65912-objs := tps65912-core.o tps65912-irq.o
obj-$(CONFIG_MFD_TPS65912) += tps65912.o
obj-$(CONFIG_MFD_TPS65912_I2C) += tps65912-i2c.o
obj-$(CONFIG_MFD_TPS65912_SPI) += tps65912-spi.o
+obj-$(CONFIG_MFD_TPS80031) += tps80031.o
obj-$(CONFIG_MENELAUS) += menelaus.o
obj-$(CONFIG_TWL4030_CORE) += twl-core.o twl4030-irq.o twl6030-irq.o
diff --git a/drivers/mfd/tps80031.c b/drivers/mfd/tps80031.c
new file mode 100644
index 0000000..0942d7f
--- /dev/null
+++ b/drivers/mfd/tps80031.c
@@ -0,0 +1,580 @@
+/*
+ * tps80031-regulator.c -- TI TPS80031/TPS80032 mfd core driver.
+ *
+ * MFD core driver for TI TPS80031/TPS80032 Fully Integrated
+ * Power Management with Power Path and Battery Charger
+ *
+ * Copyright (c) 2012, NVIDIA Corporation.
+ *
+ * Author: Laxman Dewangan <ldewangan@nvidia.com>
+ *
+ * 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 version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
+ * whether express or implied; 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/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/tps80031.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/pm.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+static struct resource tps80031_rtc_resources[] = {
+ {
+ .start = TPS80031_INT_RTC_ALARM,
+ .end = TPS80031_INT_RTC_ALARM,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+/* TPS80031 sub mfd devices */
+static struct mfd_cell tps80031_cell[] = {
+ {
+ .name = "tps80031-pmic",
+ },
+ {
+ .name = "tps80031-clock",
+ },
+ {
+ .name = "tps80031-rtc",
+ .num_resources = ARRAY_SIZE(tps80031_rtc_resources),
+ .resources = tps80031_rtc_resources,
+ },
+ {
+ .name = "tps80031-gpadc",
+ },
+ {
+ .name = "tps80031-fuel-gauge",
+ },
+ {
+ .name = "tps80031-charger",
+ },
+};
+
+static int tps80031_slave_address[TPS_NUM_SLAVES] = {
+ I2C_ID0_ADDR,
+ I2C_ID1_ADDR,
+ I2C_ID2_ADDR,
+ I2C_ID3_ADDR,
+};
+
+struct tps80031_pupd_data {
+ u8 reg;
+ u8 pullup_bit;
+ u8 pulldown_bit;
+};
+
+#define TPS80031_RGEMAP_IRQ(_reg, _mask) \
+ { \
+ .reg_offset = (TPS80031_INT_MSK_LINE_##_reg) - \
+ TPS80031_INT_MSK_LINE_A, \
+ .mask = BIT(_mask), \
+ }
+
+static const struct regmap_irq tps80031_main_irqs[] = {
+ [TPS80031_INT_PWRON] = TPS80031_RGEMAP_IRQ(A, 0),
+ [TPS80031_INT_RPWRON] = TPS80031_RGEMAP_IRQ(A, 1),
+ [TPS80031_INT_SYS_VLOW] = TPS80031_RGEMAP_IRQ(A, 2),
+ [TPS80031_INT_RTC_ALARM] = TPS80031_RGEMAP_IRQ(A, 3),
+ [TPS80031_INT_RTC_PERIOD] = TPS80031_RGEMAP_IRQ(A, 4),
+ [TPS80031_INT_HOT_DIE] = TPS80031_RGEMAP_IRQ(A, 5),
+ [TPS80031_INT_VXX_SHORT] = TPS80031_RGEMAP_IRQ(A, 6),
+ [TPS80031_INT_SPDURATION] = TPS80031_RGEMAP_IRQ(A, 7),
+ [TPS80031_INT_WATCHDOG] = TPS80031_RGEMAP_IRQ(B, 0),
+ [TPS80031_INT_BAT] = TPS80031_RGEMAP_IRQ(B, 1),
+ [TPS80031_INT_SIM] = TPS80031_RGEMAP_IRQ(B, 2),
+ [TPS80031_INT_MMC] = TPS80031_RGEMAP_IRQ(B, 3),
+ [TPS80031_INT_RES] = TPS80031_RGEMAP_IRQ(B, 4),
+ [TPS80031_INT_GPADC_RT] = TPS80031_RGEMAP_IRQ(B, 5),
+ [TPS80031_INT_GPADC_SW2_EOC] = TPS80031_RGEMAP_IRQ(B, 6),
+ [TPS80031_INT_CC_AUTOCAL] = TPS80031_RGEMAP_IRQ(B, 7),
+ [TPS80031_INT_ID_WKUP] = TPS80031_RGEMAP_IRQ(C, 0),
+ [TPS80031_INT_VBUSS_WKUP] = TPS80031_RGEMAP_IRQ(C, 1),
+ [TPS80031_INT_ID] = TPS80031_RGEMAP_IRQ(C, 2),
+ [TPS80031_INT_VBUS] = TPS80031_RGEMAP_IRQ(C, 3),
+ [TPS80031_INT_CHRG_CTRL] = TPS80031_RGEMAP_IRQ(C, 4),
+ [TPS80031_INT_EXT_CHRG] = TPS80031_RGEMAP_IRQ(C, 5),
+ [TPS80031_INT_INT_CHRG] = TPS80031_RGEMAP_IRQ(C, 6),
+ [TPS80031_INT_RES2] = TPS80031_RGEMAP_IRQ(C, 7),
+};
+
+static struct regmap_irq_chip tps80031_irq_chip = {
+ .name = "tps80031",
+ .irqs = tps80031_main_irqs,
+ .num_irqs = ARRAY_SIZE(tps80031_main_irqs),
+ .num_regs = 3,
+ .status_base = TPS80031_INT_STS_A,
+ .mask_base = TPS80031_INT_MSK_LINE_A,
+ .wake_base = 1,
+};
+
+#define PUPD_DATA(_reg, _pulldown_bit, _pullup_bit) \
+ { \
+ .reg = TPS80031_CFG_INPUT_PUPD##_reg, \
+ .pulldown_bit = _pulldown_bit, \
+ .pullup_bit = _pullup_bit, \
+ }
+
+static const struct tps80031_pupd_data tps80031_pupds[] = {
+ [TPS80031_PREQ1] = PUPD_DATA(1, BIT(0), BIT(1)),
+ [TPS80031_PREQ2A] = PUPD_DATA(1, BIT(2), BIT(3)),
+ [TPS80031_PREQ2B] = PUPD_DATA(1, BIT(4), BIT(5)),
+ [TPS80031_PREQ2C] = PUPD_DATA(1, BIT(6), BIT(7)),
+ [TPS80031_PREQ3] = PUPD_DATA(2, BIT(0), BIT(1)),
+ [TPS80031_NRES_WARM] = PUPD_DATA(2, 0, BIT(2)),
+ [TPS80031_PWM_FORCE] = PUPD_DATA(2, BIT(5), 0),
+ [TPS80031_CHRG_EXT_CHRG_STATZ] = PUPD_DATA(2, 0, BIT(6)),
+ [TPS80031_SIM] = PUPD_DATA(3, BIT(0), BIT(1)),
+ [TPS80031_MMC] = PUPD_DATA(3, BIT(2), BIT(3)),
+ [TPS80031_GPADC_START] = PUPD_DATA(3, BIT(4), 0),
+ [TPS80031_DVSI2C_SCL] = PUPD_DATA(4, 0, BIT(0)),
+ [TPS80031_DVSI2C_SDA] = PUPD_DATA(4, 0, BIT(1)),
+ [TPS80031_CTLI2C_SCL] = PUPD_DATA(4, 0, BIT(2)),
+ [TPS80031_CTLI2C_SDA] = PUPD_DATA(4, 0, BIT(3)),
+};
+static struct tps80031 *tps80031_power_off_dev;
+
+int tps80031_ext_power_req_config(struct device *dev,
+ unsigned long ext_ctrl_flag, int preq_bit,
+ int state_reg_add, int trans_reg_add)
+{
+ u8 res_ass_reg = 0;
+ int preq_mask_bit = 0;
+ int ret;
+
+ if (!(ext_ctrl_flag & EXT_PWR_REQ))
+ return 0;
+
+ if (ext_ctrl_flag & PWR_REQ_INPUT_PREQ1) {
+ res_ass_reg = TPS80031_PREQ1_RES_ASS_A + (preq_bit >> 3);
+ preq_mask_bit = 5;
+ } else if (ext_ctrl_flag & PWR_REQ_INPUT_PREQ2) {
+ res_ass_reg = TPS80031_PREQ2_RES_ASS_A + (preq_bit >> 3);
+ preq_mask_bit = 6;
+ } else if (ext_ctrl_flag & PWR_REQ_INPUT_PREQ3) {
+ res_ass_reg = TPS80031_PREQ3_RES_ASS_A + (preq_bit >> 3);
+ preq_mask_bit = 7;
+ }
+
+ /* Configure REQ_ASS registers */
+ ret = tps80031_set_bits(dev, SLAVE_ID1, res_ass_reg,
+ BIT(preq_bit & 0x7));
+ if (ret < 0) {
+ dev_err(dev, "reg 0x%02x setbit failed, err = %d\n",
+ res_ass_reg, ret);
+ return ret;
+ }
+
+ /* Unmask the PREQ */
+ ret = tps80031_clr_bits(dev, SLAVE_ID1,
+ TPS80031_PHOENIX_MSK_TRANSITION, BIT(preq_mask_bit));
+ if (ret < 0) {
+ dev_err(dev, "reg 0x%02x clrbit failed, err = %d\n",
+ TPS80031_PHOENIX_MSK_TRANSITION, ret);
+ return ret;
+ }
+
+ /* Switch regulator control to resource now */
+ if (ext_ctrl_flag & (PWR_REQ_INPUT_PREQ2 | PWR_REQ_INPUT_PREQ3)) {
+ ret = tps80031_update(dev, SLAVE_ID1, state_reg_add, 0x0,
+ STATE_MASK);
+ if (ret < 0)
+ dev_err(dev, "reg 0x%02x update failed, err = %d\n",
+ state_reg_add, ret);
+ } else {
+ ret = tps80031_update(dev, SLAVE_ID1, trans_reg_add,
+ TRANS_SLEEP_OFF, TRANS_SLEEP_MASK);
+ if (ret < 0)
+ dev_err(dev, "reg 0x%02x update failed, err = %d\n",
+ trans_reg_add, ret);
+ }
+ return ret;
+}
+EXPORT_SYMBOL_GPL(tps80031_ext_power_req_config);
+
+static void tps80031_power_off(void)
+{
+ dev_info(tps80031_power_off_dev->dev, "switching off PMU\n");
+ tps80031_write(tps80031_power_off_dev->dev, SLAVE_ID1,
+ TPS80031_PHOENIX_DEV_ON, DEVOFF);
+}
+
+static void tps80031_pupd_init(struct tps80031 *tps80031,
+ struct tps80031_platform_data *pdata)
+{
+ struct tps80031_pupd_init_data *pupd_init_data = pdata->pupd_init_data;
+ int data_size = pdata->pupd_init_data_size;
+ int i;
+
+ for (i = 0; i < data_size; ++i) {
+ struct tps80031_pupd_init_data *pupd_init = &pupd_init_data[i];
+ const struct tps80031_pupd_data *pupd =
+ &tps80031_pupds[pupd_init->input_pin];
+ u8 update_value = 0;
+ u8 update_mask = pupd->pulldown_bit | pupd->pullup_bit;
+
+ if (pupd_init->setting == TPS80031_PUPD_PULLDOWN)
+ update_value = pupd->pulldown_bit;
+ else if (pupd_init->setting == TPS80031_PUPD_PULLUP)
+ update_value = pupd->pullup_bit;
+
+ tps80031_update(tps80031->dev, SLAVE_ID1, pupd->reg,
+ update_value, update_mask);
+ }
+}
+
+static int tps80031_init_ext_control(struct tps80031 *tps80031,
+ struct tps80031_platform_data *pdata)
+{
+ struct device *dev = tps80031->dev;
+ int ret;
+ int i;
+
+ /* Clear all external control for this rail */
+ for (i = 0; i < 9; ++i) {
+ ret = tps80031_write(dev, SLAVE_ID1,
+ TPS80031_PREQ1_RES_ASS_A + i, 0);
+ if (ret < 0) {
+ dev_err(dev, "reg 0x%02x write failed, err = %d\n",
+ TPS80031_PREQ1_RES_ASS_A + i, ret);
+ return ret;
+ }
+ }
+
+ /* Mask the PREQ */
+ ret = tps80031_set_bits(dev, SLAVE_ID1,
+ TPS80031_PHOENIX_MSK_TRANSITION, 0x7 << 5);
+ if (ret < 0) {
+ dev_err(dev, "reg 0x%02x set_bits failed, err = %d\n",
+ TPS80031_PHOENIX_MSK_TRANSITION, ret);
+ return ret;
+ }
+ return ret;
+}
+
+static int __devinit tps80031_irq_init(struct tps80031 *tps80031, int irq,
+ int irq_base)
+{
+ struct device *dev = tps80031->dev;
+ int i, ret;
+
+ for (i = 0; i < 3; i++)
+ tps80031_write(dev, SLAVE_ID2,
+ TPS80031_INT_MSK_STS_A + i, 0x00);
+
+ ret = regmap_add_irq_chip(tps80031->regmap[SLAVE_ID2], irq,
+ IRQF_ONESHOT, irq_base,
+ &tps80031_irq_chip, &tps80031->irq_data);
+ if (ret < 0) {
+ dev_err(dev, "add irq failed, err = %d\n", ret);
+ return ret;
+ }
+ tps80031->irq_base = irq_base;
+ return ret;
+}
+
+static bool rd_wr_reg_id0(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case TPS80031_SMPS1_CFG_FORCE ... TPS80031_SMPS2_CFG_VOLTAGE:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool is_volatile_reg_id0(struct device *dev, unsigned int reg)
+{
+ return false;
+}
+
+static bool rd_wr_reg_id1(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case TPS80031_SECONDS_REG ... TPS80031_RTC_RESET_STATUS_REG:
+ case TPS80031_VALIDITY0 ... TPS80031_VALIDITY7:
+ case TPS80031_PHOENIX_START_CONDITION ... TPS80031_KEY_PRESS_DUR_CFG:
+ case TPS80031_SMPS4_CFG_TRANS ... TPS80031_SMPS3_CFG_VOLTAGE:
+ case TPS80031_BROADCAST_ADDR_ALL ... TPS80031_BROADCAST_ADDR_CLK_RST:
+ case TPS80031_VANA_CFG_TRANS ... TPS80031_LDO7_CFG_VOLTAGE:
+ case TPS80031_REGEN1_CFG_TRANS ... TPS80031_TMP_CFG_STATE:
+ case TPS80031_PREQ1_RES_ASS_A ... TPS80031_PREQ3_RES_ASS_C:
+ case TPS80031_SMPS_OFFSET ... TPS80031_BATDEBOUNCING:
+ case TPS80031_CFG_INPUT_PUPD1 ... TPS80031_CFG_SMPS_PD:
+ case TPS80031_BACKUP_REG:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool is_volatile_reg_id1(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case TPS80031_SMPS4_CFG_TRANS ... TPS80031_SMPS3_CFG_VOLTAGE:
+ case TPS80031_VANA_CFG_TRANS ... TPS80031_LDO7_CFG_VOLTAGE:
+ case TPS80031_REGEN1_CFG_TRANS ... TPS80031_TMP_CFG_STATE:
+ case TPS80031_PREQ1_RES_ASS_A ... TPS80031_PREQ3_RES_ASS_C:
+ case TPS80031_SMPS_OFFSET ... TPS80031_BATDEBOUNCING:
+ case TPS80031_CFG_INPUT_PUPD1 ... TPS80031_CFG_SMPS_PD:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool rd_wr_reg_id2(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case TPS80031_USB_VENDOR_ID_LSB ... TPS80031_USB_OTG_REVISION:
+ case TPS80031_GPADC_CTRL ... TPS80031_CTRL_P1:
+ case TPS80031_RTCH0_LSB ... TPS80031_GPCH0_MSB:
+ case TPS80031_TOGGLE1 ... TPS80031_VIBMODE:
+ case TPS80031_PWM1ON ... TPS80031_PWM2OFF:
+ case TPS80031_FG_REG_00 ... TPS80031_FG_REG_11:
+ case TPS80031_INT_STS_A ... TPS80031_INT_MSK_STS_C:
+ case TPS80031_CONTROLLER_CTRL2 ... TPS80031_LED_PWM_CTRL2:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool rd_wr_reg_id3(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case TPS80031_GPADC_TRIM0 ... TPS80031_GPADC_TRIM18:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct regmap_config tps80031_regmap_configs[] = {
+ {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .writeable_reg = rd_wr_reg_id0,
+ .readable_reg = rd_wr_reg_id0,
+ .volatile_reg = is_volatile_reg_id0,
+ .max_register = TPS80031_MAX_REGISTER,
+ },
+ {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .writeable_reg = rd_wr_reg_id1,
+ .readable_reg = rd_wr_reg_id1,
+ .volatile_reg = is_volatile_reg_id1,
+ .max_register = TPS80031_MAX_REGISTER,
+ },
+ {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .writeable_reg = rd_wr_reg_id2,
+ .readable_reg = rd_wr_reg_id2,
+ .max_register = TPS80031_MAX_REGISTER,
+ },
+ {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .writeable_reg = rd_wr_reg_id3,
+ .readable_reg = rd_wr_reg_id3,
+ .max_register = TPS80031_MAX_REGISTER,
+ },
+};
+
+static int __devinit tps80031_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct tps80031_platform_data *pdata = client->dev.platform_data;
+ struct tps80031 *tps80031;
+ int ret;
+ uint8_t jtag_ver;
+ uint8_t ep_ver;
+ int i;
+
+ if (!pdata) {
+ dev_err(&client->dev, "tps80031 requires platform data\n");
+ return -EINVAL;
+ }
+
+ tps80031 = devm_kzalloc(&client->dev, sizeof(*tps80031), GFP_KERNEL);
+ if (!tps80031) {
+ dev_err(&client->dev, "Malloc failed for tps80031\n");
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < TPS_NUM_SLAVES; i++) {
+ if (tps80031_slave_address[i] == client->addr)
+ tps80031->clients[i] = client;
+ else
+ tps80031->clients[i] = i2c_new_dummy(client->adapter,
+ tps80031_slave_address[i]);
+ if (!tps80031->clients[i]) {
+ dev_err(&client->dev, "can't attach client %d\n", i);
+ ret = -ENOMEM;
+ goto fail_client_reg;
+ }
+
+ i2c_set_clientdata(tps80031->clients[i], tps80031);
+ tps80031->regmap[i] = devm_regmap_init_i2c(tps80031->clients[i],
+ &tps80031_regmap_configs[i]);
+ if (IS_ERR(tps80031->regmap[i])) {
+ ret = PTR_ERR(tps80031->regmap[i]);
+ dev_err(&client->dev,
+ "regmap %d init failed, err %d\n", i, ret);
+ goto fail_client_reg;
+ }
+ }
+
+ ret = tps80031_read(&client->dev, SLAVE_ID3, TPS80031_JTAGVERNUM,
+ &jtag_ver);
+ if (ret < 0) {
+ dev_err(&client->dev,
+ "Silicon version number read failed: %d\n", ret);
+ goto fail_client_reg;
+ }
+
+ ret = tps80031_read(&client->dev, SLAVE_ID3, TPS80031_EPROM_REV,
+ &ep_ver);
+ if (ret < 0) {
+ dev_err(&client->dev,
+ "Silicon eeprom version read failed: %d\n", ret);
+ goto fail_client_reg;
+ }
+
+ dev_info(&client->dev, "Jtag version 0x%02x and Eprom version 0x%02x\n",
+ jtag_ver, ep_ver);
+ tps80031->es_version = jtag_ver;
+ tps80031->dev = &client->dev;
+ i2c_set_clientdata(client, tps80031);
+ tps80031->chip_info = id->driver_data;
+
+ if (client->irq) {
+ ret = tps80031_irq_init(tps80031, client->irq, pdata->irq_base);
+ if (ret) {
+ dev_err(&client->dev, "IRQ init failed: %d\n", ret);
+ goto fail_client_reg;
+ }
+ }
+
+ tps80031_pupd_init(tps80031, pdata);
+
+ tps80031_init_ext_control(tps80031, pdata);
+
+ ret = mfd_add_devices(tps80031->dev, -1,
+ tps80031_cell, ARRAY_SIZE(tps80031_cell),
+ NULL, tps80031->irq_base,
+ regmap_irq_get_domain(tps80031->irq_data));
+ if (ret < 0) {
+ dev_err(&client->dev, "mfd_add_devices failed: %d\n", ret);
+ goto fail_mfd_add;
+ }
+
+ if (pdata->use_power_off && !pm_power_off) {
+ pm_power_off = tps80031_power_off;
+ tps80031_power_off_dev = tps80031;
+ }
+ return 0;
+
+fail_mfd_add:
+ if (client->irq)
+ free_irq(client->irq, tps80031);
+
+fail_client_reg:
+ for (i = 0; i < TPS_NUM_SLAVES; i++) {
+ if (tps80031->clients[i] != client)
+ i2c_unregister_device(tps80031->clients[i]);
+ }
+ return ret;
+}
+
+static int __devexit tps80031_remove(struct i2c_client *client)
+{
+ struct tps80031 *tps80031 = i2c_get_clientdata(client);
+ int i;
+
+ mfd_remove_devices(tps80031->dev);
+
+ if (client->irq)
+ free_irq(client->irq, tps80031);
+
+ for (i = 0; i < TPS_NUM_SLAVES; i++) {
+ if (tps80031->clients[i] != client)
+ i2c_unregister_device(tps80031->clients[i]);
+ }
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int tps80031_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ if (client->irq)
+ disable_irq(client->irq);
+ return 0;
+}
+
+static int tps80031_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ if (client->irq)
+ enable_irq(client->irq);
+ return 0;
+}
+#endif
+static const struct dev_pm_ops tps80031_dev_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(tps80031_suspend, tps80031_resume)
+};
+
+static const struct i2c_device_id tps80031_id_table[] = {
+ { "tps80031", TPS80031 },
+ { "tps80032", TPS80032 },
+};
+MODULE_DEVICE_TABLE(i2c, tps80031_id_table);
+
+static struct i2c_driver tps80031_driver = {
+ .driver = {
+ .name = "tps80031",
+ .owner = THIS_MODULE,
+ .pm = &tps80031_dev_pm_ops,
+ },
+ .probe = tps80031_probe,
+ .remove = __devexit_p(tps80031_remove),
+ .id_table = tps80031_id_table,
+};
+
+static int __init tps80031_init(void)
+{
+ return i2c_add_driver(&tps80031_driver);
+}
+subsys_initcall(tps80031_init);
+
+static void __exit tps80031_exit(void)
+{
+ i2c_del_driver(&tps80031_driver);
+}
+module_exit(tps80031_exit);
+
+MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
+MODULE_DESCRIPTION("TPS80031 core driver");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/mfd/tps80031.h b/include/linux/mfd/tps80031.h
new file mode 100644
index 0000000..ac541a9
--- /dev/null
+++ b/include/linux/mfd/tps80031.h
@@ -0,0 +1,569 @@
+/*
+ * tps80031.c -- TI TPS80031 and TI TPS80032 PMIC driver.
+ *
+ * Copyright (c) 2012, NVIDIA Corporation.
+ *
+ * Author: Laxman Dewangan <ldewangan@nvidia.com>
+ *
+ * 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 version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
+ * whether express or implied; 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
+ */
+
+#ifndef __LINUX_MFD_TPS80031_H
+#define __LINUX_MFD_TPS80031_H
+
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+
+/* Pull-ups/Pull-downs */
+#define TPS80031_CFG_INPUT_PUPD1 0xF0
+#define TPS80031_CFG_INPUT_PUPD2 0xF1
+#define TPS80031_CFG_INPUT_PUPD3 0xF2
+#define TPS80031_CFG_INPUT_PUPD4 0xF3
+#define TPS80031_CFG_LDO_PD1 0xF4
+#define TPS80031_CFG_LDO_PD2 0xF5
+#define TPS80031_CFG_SMPS_PD 0xF6
+
+/* Real Time Clock */
+#define TPS80031_SECONDS_REG 0x00
+#define TPS80031_MINUTES_REG 0x01
+#define TPS80031_HOURS_REG 0x02
+#define TPS80031_DAYS_REG 0x03
+#define TPS80031_MONTHS_REG 0x04
+#define TPS80031_YEARS_REG 0x05
+#define TPS80031_WEEKS_REG 0x06
+#define TPS80031_ALARM_SECONDS_REG 0x08
+#define TPS80031_ALARM_MINUTES_REG 0x09
+#define TPS80031_ALARM_HOURS_REG 0x0A
+#define TPS80031_ALARM_DAYS_REG 0x0B
+#define TPS80031_ALARM_MONTHS_REG 0x0C
+#define TPS80031_ALARM_YEARS_REG 0x0D
+#define TPS80031_RTC_CTRL_REG 0x10
+#define TPS80031_RTC_STATUS_REG 0x11
+#define TPS80031_RTC_INTERRUPTS_REG 0x12
+#define TPS80031_RTC_COMP_LSB_REG 0x13
+#define TPS80031_RTC_COMP_MSB_REG 0x14
+#define TPS80031_RTC_RESET_STATUS_REG 0x16
+
+/*PMC Master Module */
+#define TPS80031_PHOENIX_START_CONDITION 0x1F
+#define TPS80031_PHOENIX_MSK_TRANSITION 0x20
+#define TPS80031_STS_HW_CONDITIONS 0x21
+#define TPS80031_PHOENIX_LAST_TURNOFF_STS 0x22
+#define TPS80031_VSYSMIN_LO_THRESHOLD 0x23
+#define TPS80031_VSYSMIN_HI_THRESHOLD 0x24
+#define TPS80031_PHOENIX_DEV_ON 0x25
+#define TPS80031_STS_PWR_GRP_STATE 0x27
+#define TPS80031_PH_CFG_VSYSLOW 0x28
+#define TPS80031_PH_STS_BOOT 0x29
+#define TPS80031_PHOENIX_SENS_TRANSITION 0x2A
+#define TPS80031_PHOENIX_SEQ_CFG 0x2B
+#define TPS80031_PRIMARY_WATCHDOG_CFG 0X2C
+#define TPS80031_KEY_PRESS_DUR_CFG 0X2D
+#define TPS80031_SMPS_LDO_SHORT_STS 0x2E
+
+/* PMC Slave Module - Broadcast */
+#define TPS80031_BROADCAST_ADDR_ALL 0x31
+#define TPS80031_BROADCAST_ADDR_REF 0x32
+#define TPS80031_BROADCAST_ADDR_PROV 0x33
+#define TPS80031_BROADCAST_ADDR_CLK_RST 0x34
+
+/* PMC Slave Module SMPS Regulators */
+#define TPS80031_SMPS4_CFG_TRANS 0x41
+#define TPS80031_SMPS4_CFG_STATE 0x42
+#define TPS80031_SMPS4_CFG_VOLTAGE 0x44
+#define TPS80031_VIO_CFG_TRANS 0x47
+#define TPS80031_VIO_CFG_STATE 0x48
+#define TPS80031_VIO_CFG_FORCE 0x49
+#define TPS80031_VIO_CFG_VOLTAGE 0x4A
+#define TPS80031_VIO_CFG_STEP 0x48
+#define TPS80031_SMPS1_CFG_TRANS 0x53
+#define TPS80031_SMPS1_CFG_STATE 0x54
+#define TPS80031_SMPS1_CFG_FORCE 0x55
+#define TPS80031_SMPS1_CFG_VOLTAGE 0x56
+#define TPS80031_SMPS1_CFG_STEP 0x57
+#define TPS80031_SMPS2_CFG_TRANS 0x59
+#define TPS80031_SMPS2_CFG_STATE 0x5A
+#define TPS80031_SMPS2_CFG_FORCE 0x5B
+#define TPS80031_SMPS2_CFG_VOLTAGE 0x5C
+#define TPS80031_SMPS2_CFG_STEP 0x5D
+#define TPS80031_SMPS3_CFG_TRANS 0x65
+#define TPS80031_SMPS3_CFG_STATE 0x66
+#define TPS80031_SMPS3_CFG_VOLTAGE 0x68
+
+/* PMC Slave Module LDO Regulators */
+#define TPS80031_VANA_CFG_TRANS 0x81
+#define TPS80031_VANA_CFG_STATE 0x82
+#define TPS80031_VANA_CFG_VOLTAGE 0x83
+#define TPS80031_LDO2_CFG_TRANS 0x85
+#define TPS80031_LDO2_CFG_STATE 0x86
+#define TPS80031_LDO2_CFG_VOLTAGE 0x87
+#define TPS80031_LDO4_CFG_TRANS 0x89
+#define TPS80031_LDO4_CFG_STATE 0x8A
+#define TPS80031_LDO4_CFG_VOLTAGE 0x8B
+#define TPS80031_LDO3_CFG_TRANS 0x8D
+#define TPS80031_LDO3_CFG_STATE 0x8E
+#define TPS80031_LDO3_CFG_VOLTAGE 0x8F
+#define TPS80031_LDO6_CFG_TRANS 0x91
+#define TPS80031_LDO6_CFG_STATE 0x92
+#define TPS80031_LDO6_CFG_VOLTAGE 0x93
+#define TPS80031_LDOLN_CFG_TRANS 0x95
+#define TPS80031_LDOLN_CFG_STATE 0x96
+#define TPS80031_LDOLN_CFG_VOLTAGE 0x97
+#define TPS80031_LDO5_CFG_TRANS 0x99
+#define TPS80031_LDO5_CFG_STATE 0x9A
+#define TPS80031_LDO5_CFG_VOLTAGE 0x9B
+#define TPS80031_LDO1_CFG_TRANS 0x9D
+#define TPS80031_LDO1_CFG_STATE 0x9E
+#define TPS80031_LDO1_CFG_VOLTAGE 0x9F
+#define TPS80031_LDOUSB_CFG_TRANS 0xA1
+#define TPS80031_LDOUSB_CFG_STATE 0xA2
+#define TPS80031_LDOUSB_CFG_VOLTAGE 0xA3
+#define TPS80031_LDO7_CFG_TRANS 0xA5
+#define TPS80031_LDO7_CFG_STATE 0xA6
+#define TPS80031_LDO7_CFG_VOLTAGE 0xA7
+
+/* PMC Slave Module External Control */
+#define TPS80031_REGEN1_CFG_TRANS 0xAE
+#define TPS80031_REGEN1_CFG_STATE 0xAF
+#define TPS80031_REGEN2_CFG_TRANS 0xB1
+#define TPS80031_REGEN2_CFG_STATE 0xB2
+#define TPS80031_SYSEN_CFG_TRANS 0xB4
+#define TPS80031_SYSEN_CFG_STATE 0xB5
+
+/* PMC Slave Module Internal Control */
+#define TPS80031_NRESPWRON_CFG_TRANS 0xB7
+#define TPS80031_NRESPWRON_CFG_STATE 0xB8
+#define TPS80031_CLK32KAO_CFG_TRANS 0xBA
+#define TPS80031_CLK32KAO_CFG_STATE 0xBB
+#define TPS80031_CLK32KG_CFG_TRANS 0xBD
+#define TPS80031_CLK32KG_CFG_STATE 0xBE
+#define TPS80031_CLK32KAUDIO_CFG_TRANS 0xC0
+#define TPS80031_CLK32KAUDIO_CFG_STATE 0xC1
+#define TPS80031_VRTC_CFG_TRANS 0xC3
+#define TPS80031_VRTC_CFG_STATE 0xC4
+#define TPS80031_BIAS_CFG_TRANS 0xC6
+#define TPS80031_BIAS_CFG_STATE 0xC7
+#define TPS80031_VSYSMIN_HI_CFG_TRANS 0xC9
+#define TPS80031_VSYSMIN_HI_CFG_STATE 0xCA
+#define TPS80031_RC6MHZ_CFG_TRANS 0xCC
+#define TPS80031_RC6MHZ_CFG_STATE 0xCD
+#define TPS80031_TMP_CFG_TRANS 0xCF
+#define TPS80031_TMP_CFG_STATE 0xD0
+
+/* PMC Slave Module resources assignment */
+#define TPS80031_PREQ1_RES_ASS_A 0xD7
+#define TPS80031_PREQ1_RES_ASS_B 0xD8
+#define TPS80031_PREQ1_RES_ASS_C 0xD9
+#define TPS80031_PREQ2_RES_ASS_A 0xDA
+#define TPS80031_PREQ2_RES_ASS_B 0xDB
+#define TPS80031_PREQ2_RES_ASS_C 0xDC
+#define TPS80031_PREQ3_RES_ASS_A 0xDD
+#define TPS80031_PREQ3_RES_ASS_B 0xDE
+#define TPS80031_PREQ3_RES_ASS_C 0xDF
+
+/* PMC Slave Module Miscellaneous */
+#define TPS80031_SMPS_OFFSET 0xE0
+#define TPS80031_SMPS_MULT 0xE3
+#define TPS80031_MISC1 0xE4
+#define TPS80031_MISC2 0xE5
+#define TPS80031_BBSPOR_CFG 0xE6
+#define TPS80031_TMP_CFG 0xE7
+
+/* Battery Charging Controller and Indicator LED */
+#define TPS80031_CONTROLLER_CTRL2 0xDA
+#define TPS80031_CONTROLLER_VSEL_COMP 0xDB
+#define TPS80031_CHARGERUSB_VSYSREG 0xDC
+#define TPS80031_CHARGERUSB_VICHRG_PC 0xDD
+#define TPS80031_LINEAR_CHRG_STS 0xDE
+#define TPS80031_CONTROLLER_INT_MASK 0xE0
+#define TPS80031_CONTROLLER_CTRL1 0xE1
+#define TPS80031_CONTROLLER_WDG 0xE2
+#define TPS80031_CONTROLLER_STAT1 0xE3
+#define TPS80031_CHARGERUSB_INT_STATUS 0xE4
+#define TPS80031_CHARGERUSB_INT_MASK 0xE5
+#define TPS80031_CHARGERUSB_STATUS_INT1 0xE6
+#define TPS80031_CHARGERUSB_STATUS_INT2 0xE7
+#define TPS80031_CHARGERUSB_CTRL1 0xE8
+#define TPS80031_CHARGERUSB_CTRL2 0xE9
+#define TPS80031_CHARGERUSB_CTRL3 0xEA
+#define TPS80031_CHARGERUSB_STAT1 0xEB
+#define TPS80031_CHARGERUSB_VOREG 0xEC
+#define TPS80031_CHARGERUSB_VICHRG 0xED
+#define TPS80031_CHARGERUSB_CINLIMIT 0xEE
+#define TPS80031_CHARGERUSB_CTRLLIMIT1 0xEF
+#define TPS80031_CHARGERUSB_CTRLLIMIT2 0xF0
+#define TPS80031_LED_PWM_CTRL1 0xF4
+#define TPS80031_LED_PWM_CTRL2 0xF5
+
+/* USB On-The-Go */
+#define TPS80031_BACKUP_REG 0xFA
+#define TPS80031_USB_VENDOR_ID_LSB 0x00
+#define TPS80031_USB_VENDOR_ID_MSB 0x01
+#define TPS80031_USB_PRODUCT_ID_LSB 0x02
+#define TPS80031_USB_PRODUCT_ID_MSB 0x03
+#define TPS80031_USB_VBUS_CTRL_SET 0x04
+#define TPS80031_USB_VBUS_CTRL_CLR 0x05
+#define TPS80031_USB_ID_CTRL_SET 0x06
+#define TPS80031_USB_ID_CTRL_CLR 0x07
+#define TPS80031_USB_VBUS_INT_SRC 0x08
+#define TPS80031_USB_VBUS_INT_LATCH_SET 0x09
+#define TPS80031_USB_VBUS_INT_LATCH_CLR 0x0A
+#define TPS80031_USB_VBUS_INT_EN_LO_SET 0x0B
+#define TPS80031_USB_VBUS_INT_EN_LO_CLR 0x0C
+#define TPS80031_USB_VBUS_INT_EN_HI_SET 0x0D
+#define TPS80031_USB_VBUS_INT_EN_HI_CLR 0x0E
+#define TPS80031_USB_ID_INT_SRC 0x0F
+#define TPS80031_USB_ID_INT_LATCH_SET 0x10
+#define TPS80031_USB_ID_INT_LATCH_CLR 0x11
+#define TPS80031_USB_ID_INT_EN_LO_SET 0x12
+#define TPS80031_USB_ID_INT_EN_LO_CLR 0x13
+#define TPS80031_USB_ID_INT_EN_HI_SET 0x14
+#define TPS80031_USB_ID_INT_EN_HI_CLR 0x15
+#define TPS80031_USB_OTG_ADP_CTRL 0x16
+#define TPS80031_USB_OTG_ADP_HIGH 0x17
+#define TPS80031_USB_OTG_ADP_LOW 0x18
+#define TPS80031_USB_OTG_ADP_RISE 0x19
+#define TPS80031_USB_OTG_REVISION 0x1A
+
+/* Gas Gauge */
+#define TPS80031_FG_REG_00 0xC0
+#define TPS80031_FG_REG_01 0xC1
+#define TPS80031_FG_REG_02 0xC2
+#define TPS80031_FG_REG_03 0xC3
+#define TPS80031_FG_REG_04 0xC4
+#define TPS80031_FG_REG_05 0xC5
+#define TPS80031_FG_REG_06 0xC6
+#define TPS80031_FG_REG_07 0xC7
+#define TPS80031_FG_REG_08 0xC8
+#define TPS80031_FG_REG_09 0xC9
+#define TPS80031_FG_REG_10 0xCA
+#define TPS80031_FG_REG_11 0xCB
+
+/* General Purpose ADC */
+#define TPS80031_GPADC_CTRL 0x2E
+#define TPS80031_GPADC_CTRL2 0x2F
+#define TPS80031_RTSELECT_LSB 0x32
+#define TPS80031_RTSELECT_ISB 0x33
+#define TPS80031_RTSELECT_MSB 0x34
+#define TPS80031_GPSELECT_ISB 0x35
+#define TPS80031_CTRL_P1 0x36
+#define TPS80031_RTCH0_LSB 0x37
+#define TPS80031_RTCH0_MSB 0x38
+#define TPS80031_RTCH1_LSB 0x39
+#define TPS80031_RTCH1_MSB 0x3A
+#define TPS80031_GPCH0_LSB 0x3B
+#define TPS80031_GPCH0_MSB 0x3C
+
+/* SIM, MMC and Battery Detection */
+#define TPS80031_SIMDEBOUNCING 0xEB
+#define TPS80031_SIMCTRL 0xEC
+#define TPS80031_MMCDEBOUNCING 0xED
+#define TPS80031_MMCCTRL 0xEE
+#define TPS80031_BATDEBOUNCING 0xEF
+
+/* Vibrator Driver and PWMs */
+#define TPS80031_VIBCTRL 0x9B
+#define TPS80031_VIBMODE 0x9C
+#define TPS80031_PWM1ON 0xBA
+#define TPS80031_PWM1OFF 0xBB
+#define TPS80031_PWM2ON 0xBD
+#define TPS80031_PWM2OFF 0xBE
+
+/* Control Interface */
+#define TPS80031_INT_STS_A 0xD0
+#define TPS80031_INT_STS_B 0xD1
+#define TPS80031_INT_STS_C 0xD2
+#define TPS80031_INT_MSK_LINE_A 0xD3
+#define TPS80031_INT_MSK_LINE_B 0xD4
+#define TPS80031_INT_MSK_LINE_C 0xD5
+#define TPS80031_INT_MSK_STS_A 0xD6
+#define TPS80031_INT_MSK_STS_B 0xD7
+#define TPS80031_INT_MSK_STS_C 0xD8
+#define TPS80031_TOGGLE1 0x90
+#define TPS80031_TOGGLE2 0x91
+#define TPS80031_TOGGLE3 0x92
+#define TPS80031_PWDNSTATUS1 0x93
+#define TPS80031_PWDNSTATUS2 0x94
+#define TPS80031_VALIDITY0 0x17
+#define TPS80031_VALIDITY1 0x18
+#define TPS80031_VALIDITY2 0x19
+#define TPS80031_VALIDITY3 0x1A
+#define TPS80031_VALIDITY4 0x1B
+#define TPS80031_VALIDITY5 0x1C
+#define TPS80031_VALIDITY6 0x1D
+#define TPS80031_VALIDITY7 0x1E
+
+/* Version number related register */
+#define TPS80031_JTAGVERNUM 0x87
+#define TPS80031_EPROM_REV 0xDF
+
+/* GPADC Trimming Bits. */
+#define TPS80031_GPADC_TRIM0 0xCC
+#define TPS80031_GPADC_TRIM1 0xCD
+#define TPS80031_GPADC_TRIM2 0xCE
+#define TPS80031_GPADC_TRIM3 0xCF
+#define TPS80031_GPADC_TRIM4 0xD0
+#define TPS80031_GPADC_TRIM5 0xD1
+#define TPS80031_GPADC_TRIM6 0xD2
+#define TPS80031_GPADC_TRIM7 0xD3
+#define TPS80031_GPADC_TRIM8 0xD4
+#define TPS80031_GPADC_TRIM9 0xD5
+#define TPS80031_GPADC_TRIM10 0xD6
+#define TPS80031_GPADC_TRIM11 0xD7
+#define TPS80031_GPADC_TRIM12 0xD8
+#define TPS80031_GPADC_TRIM13 0xD9
+#define TPS80031_GPADC_TRIM14 0xDA
+#define TPS80031_GPADC_TRIM15 0xDB
+#define TPS80031_GPADC_TRIM16 0xDC
+#define TPS80031_GPADC_TRIM17 0xDD
+#define TPS80031_GPADC_TRIM18 0xDE
+
+/* TPS80031_CONTROLLER_STAT1 bit fields */
+#define CONTROLLER_STAT1_BAT_TEMP 0
+#define CONTROLLER_STAT1_BAT_REMOVED 1
+#define CONTROLLER_STAT1_VBUS_DET 2
+#define CONTROLLER_STAT1_VAC_DET 3
+#define CONTROLLER_STAT1_FAULT_WDG 4
+#define CONTROLLER_STAT1_LINCH_GATED 6
+/* TPS80031_CONTROLLER_INT_MASK bit filed */
+#define CONTROLLER_INT_MASK_MVAC_DET 0
+#define CONTROLLER_INT_MASK_MVBUS_DET 1
+#define CONTROLLER_INT_MASK_MBAT_TEMP 2
+#define CONTROLLER_INT_MASK_MFAULT_WDG 3
+#define CONTROLLER_INT_MASK_MBAT_REMOVED 4
+#define CONTROLLER_INT_MASK_MLINCH_GATED 5
+
+#define CHARGE_CONTROL_SUB_INT_MASK 0x3F
+
+/* TPS80031_PHOENIX_DEV_ON bit field */
+#define DEVOFF 0x1
+
+#define EXT_CONTROL_CFG_TRANS 0
+#define EXT_CONTROL_CFG_STATE 1
+
+/* State register field */
+#define STATE_OFF 0x00
+#define STATE_ON 0x01
+#define STATE_MASK 0x03
+
+/* Trans register field */
+#define TRANS_ACTIVE_OFF 0x00
+#define TRANS_ACTIVE_ON 0x01
+#define TRANS_ACTIVE_MASK 0x03
+#define TRANS_SLEEP_OFF 0x00
+#define TRANS_SLEEP_ON 0x04
+#define TRANS_SLEEP_MASK 0x0C
+#define TRANS_OFF_OFF 0x00
+#define TRANS_OFF_ACTIVE 0x10
+#define TRANS_OFF_MASK 0x30
+
+#define EXT_PWR_REQ (PWR_REQ_INPUT_PREQ1 | PWR_REQ_INPUT_PREQ2 | \
+ PWR_REQ_INPUT_PREQ3)
+
+/* TPS80031_BBSPOR_CFG bit field */
+#define TPS80031_BBSPOR_CHG_EN 0x8
+#define TPS80031_MAX_REGISTER 0xFF
+
+/* Supported chips */
+enum chips {
+ TPS80031 = 0x00000001,
+ TPS80032 = 0x00000002,
+};
+
+enum {
+ TPS80031_INT_PWRON,
+ TPS80031_INT_RPWRON,
+ TPS80031_INT_SYS_VLOW,
+ TPS80031_INT_RTC_ALARM,
+ TPS80031_INT_RTC_PERIOD,
+ TPS80031_INT_HOT_DIE,
+ TPS80031_INT_VXX_SHORT,
+ TPS80031_INT_SPDURATION,
+ TPS80031_INT_WATCHDOG,
+ TPS80031_INT_BAT,
+ TPS80031_INT_SIM,
+ TPS80031_INT_MMC,
+ TPS80031_INT_RES,
+ TPS80031_INT_GPADC_RT,
+ TPS80031_INT_GPADC_SW2_EOC,
+ TPS80031_INT_CC_AUTOCAL,
+ TPS80031_INT_ID_WKUP,
+ TPS80031_INT_VBUSS_WKUP,
+ TPS80031_INT_ID,
+ TPS80031_INT_VBUS,
+ TPS80031_INT_CHRG_CTRL,
+ TPS80031_INT_EXT_CHRG,
+ TPS80031_INT_INT_CHRG,
+ TPS80031_INT_RES2,
+ TPS80031_INT_BAT_TEMP_OVRANGE,
+ TPS80031_INT_BAT_REMOVED,
+ TPS80031_INT_VBUS_DET,
+ TPS80031_INT_VAC_DET,
+ TPS80031_INT_FAULT_WDG,
+ TPS80031_INT_LINCH_GATED,
+
+ /* Last interrupt id to get the end number */
+ TPS80031_INT_NR,
+};
+
+#define TPS_NUM_SLAVES 4
+#define SLAVE_ID0 0
+#define SLAVE_ID1 1
+#define SLAVE_ID2 2
+#define SLAVE_ID3 3
+
+#define I2C_ID0_ADDR 0x12
+#define I2C_ID1_ADDR 0x48
+#define I2C_ID2_ADDR 0x49
+#define I2C_ID3_ADDR 0x4A
+
+/* External controls requests */
+enum tps80031_ext_control {
+ PWR_REQ_INPUT_NONE = 0x00000000,
+ PWR_REQ_INPUT_PREQ1 = 0x00000001,
+ PWR_REQ_INPUT_PREQ2 = 0x00000002,
+ PWR_REQ_INPUT_PREQ3 = 0x00000004,
+ PWR_OFF_ON_SLEEP = 0x00000008,
+ PWR_ON_ON_SLEEP = 0x00000010,
+};
+
+enum tps80031_pupd_pins {
+ TPS80031_PREQ1 = 0,
+ TPS80031_PREQ2A,
+ TPS80031_PREQ2B,
+ TPS80031_PREQ2C,
+ TPS80031_PREQ3,
+ TPS80031_NRES_WARM,
+ TPS80031_PWM_FORCE,
+ TPS80031_CHRG_EXT_CHRG_STATZ,
+ TPS80031_SIM,
+ TPS80031_MMC,
+ TPS80031_GPADC_START,
+ TPS80031_DVSI2C_SCL,
+ TPS80031_DVSI2C_SDA,
+ TPS80031_CTLI2C_SCL,
+ TPS80031_CTLI2C_SDA,
+};
+
+enum tps80031_pupd_settings {
+ TPS80031_PUPD_NORMAL,
+ TPS80031_PUPD_PULLDOWN,
+ TPS80031_PUPD_PULLUP,
+};
+
+struct tps80031 {
+ struct device *dev;
+ unsigned long chip_info;
+ int es_version;
+ int irq_base;
+ struct i2c_client *clients[TPS_NUM_SLAVES];
+ struct regmap *regmap[TPS_NUM_SLAVES];
+ struct regmap_irq_chip_data *irq_data;
+};
+
+struct tps80031_pupd_init_data {
+ int input_pin;
+ int setting;
+};
+
+struct tps80031_platform_data {
+ int irq_base;
+ bool use_power_off;
+ struct tps80031_pupd_init_data *pupd_init_data;
+ int pupd_init_data_size;
+};
+
+static inline int tps80031_write(struct device *dev, int sid,
+ int reg, uint8_t val)
+{
+ struct tps80031 *tps80031 = dev_get_drvdata(dev);
+
+ return regmap_write(tps80031->regmap[sid], reg, val);
+}
+
+static inline int tps80031_writes(struct device *dev, int sid, int reg,
+ int len, uint8_t *val)
+{
+ struct tps80031 *tps80031 = dev_get_drvdata(dev);
+
+ return regmap_bulk_write(tps80031->regmap[sid], reg, val, len);
+}
+
+static inline int tps80031_read(struct device *dev, int sid,
+ int reg, uint8_t *val)
+{
+ struct tps80031 *tps80031 = dev_get_drvdata(dev);
+ unsigned int ival;
+ int ret;
+
+ ret = regmap_read(tps80031->regmap[sid], reg, &ival);
+ if (ret < 0) {
+ dev_err(dev, "failed reading from reg 0x%02x\n", reg);
+ return ret;
+ }
+
+ *val = ival;
+ return ret;
+}
+
+static inline int tps80031_reads(struct device *dev, int sid,
+ int reg, int len, uint8_t *val)
+{
+ struct tps80031 *tps80031 = dev_get_drvdata(dev);
+
+ return regmap_bulk_read(tps80031->regmap[sid], reg, val, len);
+}
+
+static inline int tps80031_set_bits(struct device *dev, int sid,
+ int reg, uint8_t bit_mask)
+{
+ struct tps80031 *tps80031 = dev_get_drvdata(dev);
+
+ return regmap_update_bits(tps80031->regmap[sid], reg,
+ bit_mask, bit_mask);
+}
+
+static inline int tps80031_clr_bits(struct device *dev, int sid,
+ int reg, uint8_t bit_mask)
+{
+ struct tps80031 *tps80031 = dev_get_drvdata(dev);
+
+ return regmap_update_bits(tps80031->regmap[sid], reg, bit_mask, 0);
+}
+
+static inline int tps80031_update(struct device *dev, int sid,
+ int reg, uint8_t val, uint8_t mask)
+{
+ struct tps80031 *tps80031 = dev_get_drvdata(dev);
+
+ return regmap_update_bits(tps80031->regmap[sid], reg, mask, val);
+}
+
+static inline unsigned long tps80031_get_chip_info(struct device *dev)
+{
+ struct tps80031 *tps80031 = dev_get_drvdata(dev);
+ return tps80031->chip_info;
+}
+
+static inline int tps80031_get_pmu_version(struct device *dev)
+{
+ struct tps80031 *tps80031 = dev_get_drvdata(dev);
+ return tps80031->es_version;
+}
+
+extern int tps80031_ext_power_req_config(struct device *dev,
+ unsigned long ext_ctrl_flag, int preq_bit,
+ int state_reg_add, int trans_reg_add);
+#endif /*__LINUX_MFD_TPS80031_H */
--
1.7.1.1
^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH 2/2] regulator: tps80031: add regulator driver for tps80031
2012-11-05 9:44 [PATCH 0/2] tps80031: Add mfd and regulator driver Laxman Dewangan
2012-11-05 9:44 ` [PATCH 1/2] mfd: add TI TPS80031 mfd core driver Laxman Dewangan
@ 2012-11-05 9:44 ` Laxman Dewangan
2012-11-05 10:42 ` Mark Brown
1 sibling, 1 reply; 8+ messages in thread
From: Laxman Dewangan @ 2012-11-05 9:44 UTC (permalink / raw)
To: sameo, broonie, lrg; +Cc: linux-kernel, Laxman Dewangan
Add regulator driver for Texas Instrument TPS80031/TPS80032 device.
TPS80031/ TPS80032 Fully Integrated Power Management with Power
Path and Battery Charger. It has 5 configurable step-down
converters, 11 general purpose LDOs, VBUS generator and digital
output to control regulators.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
---
drivers/regulator/Kconfig | 9 +
drivers/regulator/Makefile | 1 +
drivers/regulator/tps80031-regulator.c | 821 ++++++++++++++++++++++++++++++++
include/linux/mfd/tps80031.h | 55 +++
4 files changed, 886 insertions(+), 0 deletions(-)
create mode 100644 drivers/regulator/tps80031-regulator.c
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index cbc685d..0ae658f 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -426,6 +426,15 @@ config REGULATOR_TPS65912
help
This driver supports TPS65912 voltage regulator chip.
+config REGULATOR_TPS80031
+ tristate "TI TPS80031/TPS80032 power regualtor driver"
+ depends on MFD_TPS80031
+ help
+ TPS80031/ TPS80032 Fully Integrated Power Management with Power
+ Path and Battery Charger. It has 5 configurable step-down
+ converters, 11 general purpose LDOs, VBUS generator and digital
+ output to control regulators.
+
config REGULATOR_TWL4030
bool "TI TWL4030/TWL5030/TWL6030/TPS659x0 PMIC"
depends on TWL4030_CORE
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index db274dc..6166d12 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -57,6 +57,7 @@ obj-$(CONFIG_REGULATOR_TPS6524X) += tps6524x-regulator.o
obj-$(CONFIG_REGULATOR_TPS6586X) += tps6586x-regulator.o
obj-$(CONFIG_REGULATOR_TPS65910) += tps65910-regulator.o
obj-$(CONFIG_REGULATOR_TPS65912) += tps65912-regulator.o
+obj-$(CONFIG_REGULATOR_TPS80031) += tps80031-regulator.o
obj-$(CONFIG_REGULATOR_TWL4030) += twl-regulator.o
obj-$(CONFIG_REGULATOR_VEXPRESS) += vexpress.o
obj-$(CONFIG_REGULATOR_WM831X) += wm831x-dcdc.o
diff --git a/drivers/regulator/tps80031-regulator.c b/drivers/regulator/tps80031-regulator.c
new file mode 100644
index 0000000..2fe9cd6
--- /dev/null
+++ b/drivers/regulator/tps80031-regulator.c
@@ -0,0 +1,821 @@
+/*
+ * tps80031-regulator.c -- TI TPS80031 regulator driver.
+ *
+ * Regulator driver for TITPS80031/TPS80032 Fully Integrated Power
+ * Management with Power Path and Battery Charger.
+ *
+ * Copyright (c) 2012, NVIDIA Corporation.
+ *
+ * Author: Laxman Dewangan <ldewangan@nvidia.com>
+ *
+ * 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 version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
+ * whether express or implied; 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/delay.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/mfd/tps80031.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/slab.h>
+
+/* Flags for DCDC Voltage reading */
+#define DCDC_OFFSET_EN BIT(0)
+#define DCDC_EXTENDED_EN BIT(1)
+#define TRACK_MODE_ENABLE BIT(2)
+
+#define SMPS_MULTOFFSET_VIO BIT(1)
+#define SMPS_MULTOFFSET_SMPS1 BIT(3)
+#define SMPS_MULTOFFSET_SMPS2 BIT(4)
+#define SMPS_MULTOFFSET_SMPS3 BIT(6)
+#define SMPS_MULTOFFSET_SMPS4 BIT(0)
+
+#define SMPS_CMD_MASK 0xC0
+#define SMPS_VSEL_MASK 0x3F
+#define LDO_VSEL_MASK 0x1F
+#define LDO_TRACK_VSEL_MASK 0x3F
+
+#define MISC2_LDOUSB_IN_VSYS BIT(4)
+#define MISC2_LDOUSB_IN_PMID BIT(3)
+#define MISC2_LDOUSB_IN_MASK 0x18
+
+#define MISC2_LDO3_SEL_VIB_VAL BIT(0)
+#define MISC2_LDO3_SEL_VIB_MASK 0x1
+
+#define BOOST_HW_PWR_EN BIT(5)
+#define BOOST_HW_PWR_EN_MASK BIT(5)
+
+#define OPA_MODE_EN BIT(6)
+#define OPA_MODE_EN_MASK BIT(6)
+
+#define USB_VBUS_CTRL_SET 0x04
+#define USB_VBUS_CTRL_CLR 0x05
+#define VBUS_DISCHRG 0x20
+
+struct tps80031_regulator_info {
+ /* Regulator register address.*/
+ u8 trans_reg;
+ u8 state_reg;
+ u8 force_reg;
+ u8 volt_reg;
+ u8 volt_id;
+
+ /*Power request bits */
+ int preq_bit;
+
+ /* used by regulator core */
+ struct regulator_desc desc;
+
+};
+
+struct tps80031_regulator {
+ struct device *dev;
+ struct regulator_dev *rdev;
+ struct tps80031_regulator_info *rinfo;
+
+ u8 device_flags;
+ unsigned int config_flags;
+ unsigned int ext_ctrl_flag;
+};
+
+static inline struct device *to_tps80031_dev(struct regulator_dev *rdev)
+{
+ return rdev_get_dev(rdev)->parent->parent;
+}
+
+static int tps80031_reg_is_enabled(struct regulator_dev *rdev)
+{
+ struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
+ struct device *parent = to_tps80031_dev(rdev);
+ u8 reg_val;
+ int ret;
+
+ if (ri->ext_ctrl_flag & EXT_PWR_REQ)
+ return true;
+
+ ret = tps80031_read(parent, SLAVE_ID1, ri->rinfo->state_reg, ®_val);
+ if (ret < 0) {
+ dev_err(&rdev->dev, "Reg 0x%02x read failed, err = %d\n",
+ ri->rinfo->state_reg, ret);
+ return ret;
+ }
+ return ((reg_val & STATE_MASK) == STATE_ON);
+}
+
+static int tps80031_reg_enable(struct regulator_dev *rdev)
+{
+ struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
+ struct device *parent = to_tps80031_dev(rdev);
+ int ret;
+
+ if (ri->ext_ctrl_flag & EXT_PWR_REQ)
+ return 0;
+
+ ret = tps80031_update(parent, SLAVE_ID1, ri->rinfo->state_reg,
+ STATE_ON, STATE_MASK);
+ if (ret < 0) {
+ dev_err(&rdev->dev, "Reg 0x%02x update failed, err = %d\n",
+ ri->rinfo->state_reg, ret);
+ return ret;
+ }
+ return ret;
+}
+
+static int tps80031_reg_disable(struct regulator_dev *rdev)
+{
+ struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
+ struct device *parent = to_tps80031_dev(rdev);
+ int ret;
+
+ if (ri->ext_ctrl_flag & EXT_PWR_REQ)
+ return 0;
+
+ ret = tps80031_update(parent, SLAVE_ID1, ri->rinfo->state_reg,
+ STATE_OFF, STATE_MASK);
+ if (ret < 0)
+ dev_err(&rdev->dev, "Reg 0x%02x update failed, err = %d\n",
+ ri->rinfo->state_reg, ret);
+ return ret;
+}
+
+static int tps80031_dcdc_list_voltage(struct regulator_dev *rdev, unsigned sel)
+{
+ struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
+ int voltage = 0;
+
+ switch (ri->device_flags) {
+ case 0:
+ if (sel < 57)
+ voltage = 607700 + 12660 * sel;
+ else if (sel == 57)
+ voltage = 1350 * 1000;
+ else if (sel == 58)
+ voltage = 1500 * 1000;
+ else if (sel == 59)
+ voltage = 1800 * 1000;
+ else if (sel == 60)
+ voltage = 1900 * 1000;
+ else if (sel == 61)
+ voltage = 2100 * 1000;
+ break;
+
+ case DCDC_OFFSET_EN:
+ if (sel < 57)
+ voltage = 700000 + 12500 * sel;
+ else if (sel == 57)
+ voltage = 1350 * 1000;
+ else if (sel == 58)
+ voltage = 1500 * 1000;
+ else if (sel == 59)
+ voltage = 1800 * 1000;
+ else if (sel == 60)
+ voltage = 1900 * 1000;
+ else if (sel == 61)
+ voltage = 2100 * 1000;
+ break;
+
+ case DCDC_EXTENDED_EN:
+ if (sel < 57)
+ voltage = 1852000 + 38600 * sel;
+ else if (sel == 57)
+ voltage = 2084 * 1000;
+ else if (sel == 58)
+ voltage = 2315 * 1000;
+ else if (sel == 59)
+ voltage = 2778 * 1000;
+ else if (sel == 60)
+ voltage = 2932 * 1000;
+ else if (sel == 61)
+ voltage = 3241 * 1000;
+ break;
+
+ case DCDC_OFFSET_EN | DCDC_EXTENDED_EN:
+ if (sel < 57)
+ voltage = 2161000 + 38600 * sel;
+ else if (sel == 57)
+ voltage = 4167 * 1000;
+ else if (sel == 58)
+ voltage = 2315 * 1000;
+ else if (sel == 59)
+ voltage = 2778 * 1000;
+ else if (sel == 60)
+ voltage = 2932 * 1000;
+ else if (sel == 61)
+ voltage = 3241 * 1000;
+ break;
+ }
+
+ return voltage;
+}
+
+static int tps80031_dcdc_set_voltage_sel(struct regulator_dev *rdev,
+ unsigned vsel)
+{
+ struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
+ struct device *parent = to_tps80031_dev(rdev);
+ int ret;
+ u8 reg_val;
+
+ if (ri->rinfo->force_reg) {
+ ret = tps80031_read(parent, ri->rinfo->volt_id,
+ ri->rinfo->force_reg, ®_val);
+ if (ret < 0) {
+ dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
+ ri->rinfo->force_reg, ret);
+ return ret;
+ }
+ if (!(reg_val & SMPS_CMD_MASK)) {
+ ret = tps80031_update(parent, ri->rinfo->volt_id,
+ ri->rinfo->force_reg, vsel + 1, SMPS_VSEL_MASK);
+ if (ret < 0)
+ dev_err(ri->dev,
+ "reg 0x%02x update failed, e = %d\n",
+ ri->rinfo->force_reg, ret);
+ return ret;
+ }
+ }
+ ret = tps80031_update(parent, ri->rinfo->volt_id,
+ ri->rinfo->volt_reg, vsel + 1, SMPS_VSEL_MASK);
+ if (ret < 0)
+ dev_err(ri->dev, "reg 0x%02x update failed, e = %d\n",
+ ri->rinfo->volt_reg, ret);
+ return ret;
+}
+
+static int tps80031_dcdc_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
+ struct device *parent = to_tps80031_dev(rdev);
+ uint8_t vsel = 0;
+ int ret;
+
+ if (ri->rinfo->force_reg) {
+ ret = tps80031_read(parent, ri->rinfo->volt_id,
+ ri->rinfo->force_reg, &vsel);
+ if (ret < 0) {
+ dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
+ ri->rinfo->force_reg, ret);
+ return ret;
+ }
+
+ if (!(vsel & SMPS_CMD_MASK))
+ return (vsel & SMPS_VSEL_MASK) - 1;
+ }
+ ret = tps80031_read(parent, ri->rinfo->volt_id,
+ ri->rinfo->volt_reg, &vsel);
+ if (ret < 0) {
+ dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
+ ri->rinfo->volt_reg, ret);
+ return ret;
+ }
+ return (vsel & SMPS_VSEL_MASK) - 1;
+}
+
+static int tps80031_ldo_set_voltage_sel(struct regulator_dev *rdev,
+ unsigned sel)
+{
+ struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
+ struct device *parent = to_tps80031_dev(rdev);
+ int ret;
+
+ /* Check for valid setting for TPS80031 or TPS80032-ES1.0 */
+ if ((ri->rinfo->desc.id == TPS80031_REGULATOR_LDO2) &&
+ (ri->device_flags & TRACK_MODE_ENABLE)) {
+ unsigned nvsel = (sel + 1) & 0x1F;
+ if (((tps80031_get_chip_info(parent) == TPS80031) ||
+ ((tps80031_get_chip_info(parent) == TPS80032) &&
+ (tps80031_get_pmu_version(parent) == 0x0))) &&
+ ((nvsel == 0x0) || (nvsel >= 0x19 && nvsel <= 0x1F))) {
+ dev_err(ri->dev,
+ "Invalid sel %d in track mode LDO2\n",
+ nvsel);
+ return -EINVAL;
+ }
+ }
+
+ ret = tps80031_write(parent, ri->rinfo->volt_id,
+ ri->rinfo->volt_reg, sel + 1);
+ if (ret < 0)
+ dev_err(ri->dev, "Error in writing reg 0x%02x, e = %d\n",
+ ri->rinfo->volt_reg, ret);
+ return ret;
+}
+
+static int tps80031_ldo_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
+ struct device *parent = to_tps80031_dev(rdev);
+ uint8_t vsel;
+ int ret;
+
+ ret = tps80031_read(parent, ri->rinfo->volt_id,
+ ri->rinfo->volt_reg, &vsel);
+ if (ret < 0) {
+ dev_err(ri->dev, "Error in writing the Voltage register\n");
+ return ret;
+ }
+ return (vsel & rdev->desc->vsel_mask) - 1;
+}
+
+static int tps80031_vbus_is_enabled(struct regulator_dev *rdev)
+{
+ struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
+ struct device *parent = to_tps80031_dev(rdev);
+ int ret = -EIO;
+ uint8_t ctrl1 = 0;
+ uint8_t ctrl3 = 0;
+
+ if (!(ri->config_flags & VBUS_SW_ONLY)) {
+ dev_err(&rdev->dev, "%s() is not supported with flag 0x%08x\n",
+ __func__, ri->config_flags);
+ return -EIO;
+ }
+
+ ret = tps80031_read(parent, SLAVE_ID2,
+ TPS80031_CHARGERUSB_CTRL1, &ctrl1);
+ if (ret < 0) {
+ dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
+ TPS80031_CHARGERUSB_CTRL1, ret);
+ return ret;
+ }
+ ret = tps80031_read(parent, SLAVE_ID2,
+ TPS80031_CHARGERUSB_CTRL3, &ctrl3);
+ if (ret < 0) {
+ dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
+ TPS80031_CHARGERUSB_CTRL1, ret);
+ return ret;
+ }
+ if ((ctrl1 & OPA_MODE_EN) && (ctrl3 & BOOST_HW_PWR_EN))
+ return 1;
+ return ret;
+}
+
+static int tps80031_vbus_enable(struct regulator_dev *rdev)
+{
+ struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
+ struct device *parent = to_tps80031_dev(rdev);
+ int ret;
+
+ if (!(ri->config_flags & VBUS_SW_ONLY)) {
+ dev_err(&rdev->dev, "%s() is not supported with flag 0x%08x\n",
+ __func__, ri->config_flags);
+ return -EIO;
+ }
+
+ ret = tps80031_set_bits(parent, SLAVE_ID2,
+ TPS80031_CHARGERUSB_CTRL1, OPA_MODE_EN);
+ if (ret < 0) {
+ dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
+ TPS80031_CHARGERUSB_CTRL1, ret);
+ return ret;
+ }
+
+ ret = tps80031_set_bits(parent, SLAVE_ID2,
+ TPS80031_CHARGERUSB_CTRL3, BOOST_HW_PWR_EN);
+ if (ret < 0) {
+ dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
+ TPS80031_CHARGERUSB_CTRL3, ret);
+ return ret;
+ }
+ return ret;
+}
+
+static int tps80031_vbus_disable(struct regulator_dev *rdev)
+{
+ struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
+ struct device *parent = to_tps80031_dev(rdev);
+ int ret = 0;
+
+ if (!(ri->config_flags & VBUS_SW_ONLY)) {
+ dev_err(&rdev->dev, "%s() is not supported with flag 0x%08x\n",
+ __func__, ri->config_flags);
+ return -EIO;
+ }
+
+ if (ri->config_flags & VBUS_DISCHRG_EN_PDN) {
+ ret = tps80031_write(parent, SLAVE_ID2,
+ USB_VBUS_CTRL_SET, VBUS_DISCHRG);
+ if (ret < 0) {
+ dev_err(ri->dev, "reg 0x%02x write failed, e = %d\n",
+ USB_VBUS_CTRL_SET, ret);
+ return ret;
+ }
+ }
+
+ ret = tps80031_clr_bits(parent, SLAVE_ID2,
+ TPS80031_CHARGERUSB_CTRL1, OPA_MODE_EN);
+ if (ret < 0) {
+ dev_err(ri->dev, "reg 0x%02x clearbit failed, e = %d\n",
+ TPS80031_CHARGERUSB_CTRL1, ret);
+ return ret;
+ }
+
+ ret = tps80031_clr_bits(parent, SLAVE_ID2,
+ TPS80031_CHARGERUSB_CTRL3, BOOST_HW_PWR_EN);
+ if (ret < 0) {
+ dev_err(ri->dev, "reg 0x%02x clearbit failed, e = %d\n",
+ TPS80031_CHARGERUSB_CTRL3, ret);
+ return ret;
+ }
+
+ mdelay(DIV_ROUND_UP(ri->rinfo->desc.enable_time, 1000));
+ if (ri->config_flags & VBUS_DISCHRG_EN_PDN) {
+ ret = tps80031_write(parent, SLAVE_ID2,
+ USB_VBUS_CTRL_CLR, VBUS_DISCHRG);
+ if (ret < 0) {
+ dev_err(ri->dev, "reg 0x%02x write failed, e = %d\n",
+ USB_VBUS_CTRL_CLR, ret);
+ return ret;
+ }
+ }
+ return ret;
+}
+
+static struct regulator_ops tps80031_dcdc_ops = {
+ .list_voltage = tps80031_dcdc_list_voltage,
+ .set_voltage_sel = tps80031_dcdc_set_voltage_sel,
+ .get_voltage_sel = tps80031_dcdc_get_voltage_sel,
+ .enable = tps80031_reg_enable,
+ .disable = tps80031_reg_disable,
+ .is_enabled = tps80031_reg_is_enabled,
+};
+
+static struct regulator_ops tps80031_ldo_ops = {
+ .list_voltage = regulator_list_voltage_linear,
+ .set_voltage_sel = tps80031_ldo_set_voltage_sel,
+ .get_voltage_sel = tps80031_ldo_get_voltage_sel,
+ .enable = tps80031_reg_enable,
+ .disable = tps80031_reg_disable,
+ .is_enabled = tps80031_reg_is_enabled,
+};
+
+static struct regulator_ops tps80031_vbus_ops = {
+ .enable = tps80031_vbus_enable,
+ .disable = tps80031_vbus_disable,
+ .is_enabled = tps80031_vbus_is_enabled,
+};
+
+static struct regulator_ops tps80031_ext_reg_ops = {
+ .enable = tps80031_reg_enable,
+ .disable = tps80031_reg_disable,
+ .is_enabled = tps80031_reg_is_enabled,
+};
+
+/* Non-exiting default definition for some register */
+#define TPS80031_SMPS3_CFG_FORCE 0
+#define TPS80031_SMPS4_CFG_FORCE 0
+
+#define TPS80031_VBUS_CFG_TRANS 0
+#define TPS80031_VBUS_CFG_STATE 0
+
+#define TPS80031_REG_SMPS(_id, _volt_id, _pbit) \
+{ \
+ .trans_reg = TPS80031_##_id##_CFG_TRANS, \
+ .state_reg = TPS80031_##_id##_CFG_STATE, \
+ .force_reg = TPS80031_##_id##_CFG_FORCE, \
+ .volt_reg = TPS80031_##_id##_CFG_VOLTAGE, \
+ .volt_id = SLAVE_##_volt_id, \
+ .preq_bit = _pbit, \
+ .desc = { \
+ .name = "tps80031_"#_id, \
+ .id = TPS80031_REGULATOR_##_id, \
+ .n_voltages = 62, \
+ .ops = &tps80031_dcdc_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ .enable_time = 500, \
+ }, \
+}
+
+#define TPS80031_REG_LDO(_id, _preq_bit) \
+{ \
+ .trans_reg = TPS80031_##_id##_CFG_TRANS, \
+ .state_reg = TPS80031_##_id##_CFG_STATE, \
+ .volt_reg = TPS80031_##_id##_CFG_VOLTAGE, \
+ .volt_id = SLAVE_ID1, \
+ .preq_bit = _preq_bit, \
+ .desc = { \
+ .owner = THIS_MODULE, \
+ .name = "tps80031_"#_id, \
+ .id = TPS80031_REGULATOR_##_id, \
+ .ops = &tps80031_ldo_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .min_uV = 1000000, \
+ .uV_step = 100000, \
+ .n_voltages = 24, \
+ .vsel_mask = LDO_VSEL_MASK, \
+ .enable_time = 500, \
+ }, \
+}
+
+#define TPS80031_REG_FIXED(_id, max_mV, _ops, _delay, _pbit) \
+{ \
+ .trans_reg = TPS80031_##_id##_CFG_TRANS, \
+ .state_reg = TPS80031_##_id##_CFG_STATE, \
+ .volt_id = SLAVE_ID1, \
+ .preq_bit = _pbit, \
+ .desc = { \
+ .name = "tps80031_"#_id, \
+ .id = TPS80031_REGULATOR_##_id, \
+ .n_voltages = 2, \
+ .ops = &_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ .enable_time = _delay, \
+ }, \
+}
+
+static struct tps80031_regulator_info tps80031_rinfo[TPS80031_REGULATOR_MAX] = {
+ TPS80031_REG_SMPS(VIO, ID0, 4),
+ TPS80031_REG_SMPS(SMPS1, ID0, 0),
+ TPS80031_REG_SMPS(SMPS2, ID0, 1),
+ TPS80031_REG_SMPS(SMPS3, ID1, 2),
+ TPS80031_REG_SMPS(SMPS4, ID1, 3),
+ TPS80031_REG_LDO(VANA, -1),
+ TPS80031_REG_LDO(LDO1, 8),
+ TPS80031_REG_LDO(LDO2, 9),
+ TPS80031_REG_LDO(LDO3, 10),
+ TPS80031_REG_LDO(LDO4, 11),
+ TPS80031_REG_LDO(LDO5, 12),
+ TPS80031_REG_LDO(LDO6, 13),
+ TPS80031_REG_LDO(LDO7, 14),
+ TPS80031_REG_LDO(LDOLN, 15),
+ TPS80031_REG_LDO(LDOUSB, 5),
+ TPS80031_REG_FIXED(VBUS, 5000, tps80031_vbus_ops, 100000, -1),
+ TPS80031_REG_FIXED(REGEN1, 3300, tps80031_ext_reg_ops, 0, 16),
+ TPS80031_REG_FIXED(REGEN2, 3300, tps80031_ext_reg_ops, 0, 17),
+ TPS80031_REG_FIXED(SYSEN, 3300, tps80031_ext_reg_ops, 0, 18),
+};
+
+static int tps80031_power_req_config(struct device *parent,
+ struct tps80031_regulator *ri,
+ struct tps80031_regulator_platform_data *tps80031_pdata)
+{
+ int ret = 0;
+
+ if (ri->rinfo->preq_bit < 0)
+ goto skip_pwr_req_config;
+
+ ret = tps80031_ext_power_req_config(parent, ri->ext_ctrl_flag,
+ ri->rinfo->preq_bit, ri->rinfo->state_reg,
+ ri->rinfo->trans_reg);
+ if (ret < 0) {
+ dev_err(ri->dev, "ext powerreq config failed, err = %d\n", ret);
+ return ret;
+ }
+
+skip_pwr_req_config:
+ if (tps80031_pdata->ext_ctrl_flag & PWR_ON_ON_SLEEP) {
+ ret = tps80031_update(parent, SLAVE_ID1, ri->rinfo->trans_reg,
+ TRANS_SLEEP_ON, TRANS_SLEEP_MASK);
+ if (ret < 0) {
+ dev_err(ri->dev, "Reg 0x%02x update failed, e %d\n",
+ ri->rinfo->trans_reg, ret);
+ return ret;
+ }
+ }
+ return ret;
+}
+
+static int tps80031_regulator_config(struct device *parent,
+ struct tps80031_regulator *ri,
+ struct tps80031_regulator_platform_data *tps80031_pdata)
+{
+ int ret = 0;
+
+ switch (ri->rinfo->desc.id) {
+ case TPS80031_REGULATOR_LDOUSB:
+ if (ri->config_flags &
+ (USBLDO_INPUT_VSYS | USBLDO_INPUT_PMID)) {
+ unsigned val = 0;
+ if (ri->config_flags & USBLDO_INPUT_VSYS)
+ val = MISC2_LDOUSB_IN_VSYS;
+ else
+ val = MISC2_LDOUSB_IN_PMID;
+
+ ret = tps80031_update(parent, SLAVE_ID1,
+ TPS80031_MISC2, val, MISC2_LDOUSB_IN_MASK);
+ if (ret < 0) {
+ dev_err(ri->dev,
+ "LDOUSB config failed, e= %d\n", ret);
+ return ret;
+ }
+ }
+ break;
+
+ case TPS80031_REGULATOR_LDO3:
+ if (ri->config_flags & LDO3_OUTPUT_VIB) {
+ ret = tps80031_update(parent, SLAVE_ID1,
+ TPS80031_MISC2, MISC2_LDO3_SEL_VIB_VAL,
+ MISC2_LDO3_SEL_VIB_MASK);
+ if (ret < 0) {
+ dev_err(ri->dev,
+ "LDO3 config failed, e = %d\n", ret);
+ return ret;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ /* Configure Active state to ON, SLEEP to OFF and OFF_state to OFF */
+ ret = tps80031_update(parent, SLAVE_ID1, ri->rinfo->trans_reg,
+ TRANS_ACTIVE_ON | TRANS_SLEEP_OFF | TRANS_OFF_OFF,
+ TRANS_ACTIVE_MASK | TRANS_SLEEP_MASK | TRANS_OFF_MASK);
+ if (ret < 0) {
+ dev_err(ri->dev, "trans reg update failed, e %d\n", ret);
+ return ret;
+ }
+
+ return ret;
+}
+
+static int check_smps_mode_mult(struct device *parent,
+ struct tps80031_regulator *ri)
+{
+ int mult_offset;
+ int ret;
+ u8 smps_offset;
+ u8 smps_mult;
+
+ ret = tps80031_read(parent, SLAVE_ID1,
+ TPS80031_SMPS_OFFSET, &smps_offset);
+ if (ret < 0) {
+ dev_err(parent, "Error in reading smps offset register\n");
+ return ret;
+ }
+
+ ret = tps80031_read(parent, SLAVE_ID1,
+ TPS80031_SMPS_MULT, &smps_mult);
+ if (ret < 0) {
+ dev_err(parent, "Error in reading smps mult register\n");
+ return ret;
+ }
+
+ switch (ri->rinfo->desc.id) {
+ case TPS80031_REGULATOR_VIO:
+ mult_offset = SMPS_MULTOFFSET_VIO;
+ break;
+ case TPS80031_REGULATOR_SMPS1:
+ mult_offset = SMPS_MULTOFFSET_SMPS1;
+ break;
+ case TPS80031_REGULATOR_SMPS2:
+ mult_offset = SMPS_MULTOFFSET_SMPS2;
+ break;
+ case TPS80031_REGULATOR_SMPS3:
+ mult_offset = SMPS_MULTOFFSET_SMPS3;
+ break;
+ case TPS80031_REGULATOR_SMPS4:
+ mult_offset = SMPS_MULTOFFSET_SMPS4;
+ break;
+ case TPS80031_REGULATOR_LDO2:
+ ri->device_flags = smps_mult & BIT(5) ? TRACK_MODE_ENABLE : 0;
+ /* TRACK mode the ldo2 varies from 600mV to 1300mV */
+ if (ri->device_flags & TRACK_MODE_ENABLE) {
+ ri->rinfo->desc.min_uV = 600000;
+ ri->rinfo->desc.uV_step = 12500;
+ ri->rinfo->desc.n_voltages = 57;
+ ri->rinfo->desc.vsel_mask = LDO_TRACK_VSEL_MASK;
+ }
+ return 0;
+ default:
+ return 0;
+ }
+
+ ri->device_flags = (smps_offset & mult_offset) ? DCDC_OFFSET_EN : 0;
+ ri->device_flags |= (smps_mult & mult_offset) ? DCDC_EXTENDED_EN : 0;
+ return 0;
+}
+
+static int __devinit tps80031_regulator_probe(struct platform_device *pdev)
+{
+ struct tps80031_platform_data *pdata;
+ struct tps80031_regulator_platform_data *tps_pdata;
+ struct tps80031_regulator_info *rinfo;
+ struct tps80031_regulator *ri;
+ struct tps80031_regulator *pmic;
+ struct regulator_dev *rdev;
+ struct regulator_config config = { };
+ int ret;
+ int num;
+
+ pdata = dev_get_platdata(pdev->dev.parent);
+
+ if (!pdata) {
+ dev_err(&pdev->dev, "No platform data\n");
+ return -EINVAL;
+ }
+
+ pmic = devm_kzalloc(&pdev->dev,
+ TPS80031_REGULATOR_MAX * sizeof(*pmic), GFP_KERNEL);
+ if (!pmic) {
+ dev_err(&pdev->dev, "mem alloc for pmic failed\n");
+ return -ENOMEM;
+ }
+
+ for (num = 0; num < TPS80031_REGULATOR_MAX; ++num) {
+ tps_pdata = pdata->regulator_pdata[num];
+ rinfo = &tps80031_rinfo[num];
+ ri = &pmic[num];
+ ri->rinfo = rinfo;
+ ri->dev = &pdev->dev;
+
+ check_smps_mode_mult(pdev->dev.parent, ri);
+ config.dev = &pdev->dev;
+ config.init_data = NULL;
+ config.driver_data = ri;
+ if (tps_pdata) {
+ config.init_data = tps_pdata->reg_init_data;
+ ri->config_flags = tps_pdata->config_flags;
+ ri->ext_ctrl_flag = tps_pdata->ext_ctrl_flag;
+ ret = tps80031_regulator_config(pdev->dev.parent,
+ ri, tps_pdata);
+ if (ret < 0) {
+ dev_err(&pdev->dev,
+ "regulator config failed, e %d\n", ret);
+ goto fail;
+ }
+
+ ret = tps80031_power_req_config(pdev->dev.parent,
+ ri, tps_pdata);
+ if (ret < 0) {
+ dev_err(&pdev->dev,
+ "pwr_req config failed, err %d\n", ret);
+ goto fail;
+ }
+ }
+ rdev = regulator_register(&ri->rinfo->desc, &config);
+ if (IS_ERR_OR_NULL(rdev)) {
+ dev_err(&pdev->dev,
+ "register regulator failed %s\n",
+ ri->rinfo->desc.name);
+ ret = PTR_ERR(rdev);
+ goto fail;
+ }
+ ri->rdev = rdev;
+ }
+
+ platform_set_drvdata(pdev, pmic);
+ return 0;
+fail:
+ while (--num >= 0) {
+ ri = &pmic[num];
+ regulator_unregister(ri->rdev);
+ }
+ return ret;
+}
+
+static int __devexit tps80031_regulator_remove(struct platform_device *pdev)
+{
+ struct tps80031_regulator *pmic = platform_get_drvdata(pdev);
+ struct tps80031_regulator *ri = NULL;
+ int num;
+
+ for (num = 0; num < TPS80031_REGULATOR_MAX; ++num) {
+ ri = &pmic[num];
+ regulator_unregister(ri->rdev);
+ }
+ return 0;
+}
+
+static struct platform_driver tps80031_regulator_driver = {
+ .driver = {
+ .name = "tps80031-pmic",
+ .owner = THIS_MODULE,
+ },
+ .probe = tps80031_regulator_probe,
+ .remove = __devexit_p(tps80031_regulator_remove),
+};
+
+static int __init tps80031_regulator_init(void)
+{
+ return platform_driver_register(&tps80031_regulator_driver);
+}
+subsys_initcall(tps80031_regulator_init);
+
+static void __exit tps80031_regulator_exit(void)
+{
+ platform_driver_unregister(&tps80031_regulator_driver);
+}
+module_exit(tps80031_regulator_exit);
+
+MODULE_ALIAS("platform:tps80031-regulator");
+MODULE_DESCRIPTION("Regulator Driver for TI TPS80031 PMIC");
+MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/mfd/tps80031.h b/include/linux/mfd/tps80031.h
index ac541a9..ded1851 100644
--- a/include/linux/mfd/tps80031.h
+++ b/include/linux/mfd/tps80031.h
@@ -429,6 +429,44 @@ enum {
#define I2C_ID2_ADDR 0x49
#define I2C_ID3_ADDR 0x4A
+enum {
+ TPS80031_REGULATOR_VIO,
+ TPS80031_REGULATOR_SMPS1,
+ TPS80031_REGULATOR_SMPS2,
+ TPS80031_REGULATOR_SMPS3,
+ TPS80031_REGULATOR_SMPS4,
+ TPS80031_REGULATOR_VANA,
+ TPS80031_REGULATOR_LDO1,
+ TPS80031_REGULATOR_LDO2,
+ TPS80031_REGULATOR_LDO3,
+ TPS80031_REGULATOR_LDO4,
+ TPS80031_REGULATOR_LDO5,
+ TPS80031_REGULATOR_LDO6,
+ TPS80031_REGULATOR_LDO7,
+ TPS80031_REGULATOR_LDOLN,
+ TPS80031_REGULATOR_LDOUSB,
+ TPS80031_REGULATOR_VBUS,
+ TPS80031_REGULATOR_REGEN1,
+ TPS80031_REGULATOR_REGEN2,
+ TPS80031_REGULATOR_SYSEN,
+ TPS80031_REGULATOR_MAX,
+};
+
+/* Different configurations for the rails */
+enum {
+ /* USBLDO input selection */
+ USBLDO_INPUT_VSYS = 0x00000001,
+ USBLDO_INPUT_PMID = 0x00000002,
+
+ /* LDO3 output mode */
+ LDO3_OUTPUT_VIB = 0x00000004,
+
+ /* VBUS configuration */
+ VBUS_DISCHRG_EN_PDN = 0x00000004,
+ VBUS_SW_ONLY = 0x00000008,
+ VBUS_SW_N_ID = 0x00000010,
+};
+
/* External controls requests */
enum tps80031_ext_control {
PWR_REQ_INPUT_NONE = 0x00000000,
@@ -478,11 +516,28 @@ struct tps80031_pupd_init_data {
int setting;
};
+/*
+ * struct tps80031_regulator_platform_data - tps80031 regulator platform data.
+ *
+ * @reg_init_data: The regulator init data.
+ * @ext_ctrl_flag: External control flag for sleep/power request control.
+ * @config_flags: Configuration flag to configure the rails.
+ * It should be ORed of config enums.
+ */
+
+struct tps80031_regulator_platform_data {
+ struct regulator_init_data *reg_init_data;
+ unsigned int ext_ctrl_flag;
+ unsigned int config_flags;
+};
+
struct tps80031_platform_data {
int irq_base;
bool use_power_off;
struct tps80031_pupd_init_data *pupd_init_data;
int pupd_init_data_size;
+ struct tps80031_regulator_platform_data
+ *regulator_pdata[TPS80031_REGULATOR_MAX];
};
static inline int tps80031_write(struct device *dev, int sid,
--
1.7.1.1
^ permalink raw reply related [flat|nested] 8+ messages in thread