mfd: Add new mfd device for TPS65217
The TPS65217 chip is a power management IC for Portable Navigation Systems and Tablet Computing devices. It contains the following components: - Regulators - White LED - USB battery charger This patch adds support for tps65217 mfd device. At this time only the regulator functionality is made available. Signed-off-by: AnilKumar Ch <anilkumar@ti.com> Reviwed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
AnilKumar Ch
Samuel Ortiz
parent
0dcc9a9d83
commit
d48f411c10
4 changed files with 541 additions and 0 deletions
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@ -143,6 +143,21 @@ config TPS6507X
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This driver can also be built as a module. If so, the module
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will be called tps6507x.
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config MFD_TPS65217
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tristate "TPS65217 Power Management / White LED chips"
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depends on I2C
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select MFD_CORE
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select REGMAP_I2C
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help
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If you say yes here you get support for the TPS65217 series of
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Power Management / White LED chips.
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These include voltage regulators, lithium ion/polymer battery
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charger, wled and other features that are often used in portable
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devices.
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This driver can also be built as a module. If so, the module
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will be called tps65217.
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config MFD_TPS6586X
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bool "TPS6586x Power Management chips"
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depends on I2C=y && GPIOLIB && GENERIC_HARDIRQS
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@ -38,6 +38,7 @@ obj-$(CONFIG_MFD_WM8994) += wm8994-core.o wm8994-irq.o wm8994-regmap.o
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obj-$(CONFIG_TPS6105X) += tps6105x.o
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obj-$(CONFIG_TPS65010) += tps65010.o
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obj-$(CONFIG_TPS6507X) += tps6507x.o
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obj-$(CONFIG_MFD_TPS65217) += tps65217.o
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obj-$(CONFIG_MFD_TPS65910) += tps65910.o tps65910-irq.o
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tps65912-objs := tps65912-core.o tps65912-irq.o
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obj-$(CONFIG_MFD_TPS65912) += tps65912.o
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242
drivers/mfd/tps65217.c
Normal file
242
drivers/mfd/tps65217.c
Normal file
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@ -0,0 +1,242 @@
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/*
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* tps65217.c
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*
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* TPS65217 chip family multi-function driver
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*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/kernel.h>
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#include <linux/device.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/init.h>
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#include <linux/i2c.h>
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#include <linux/slab.h>
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#include <linux/regmap.h>
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#include <linux/err.h>
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#include <linux/mfd/core.h>
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#include <linux/mfd/tps65217.h>
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/**
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* tps65217_reg_read: Read a single tps65217 register.
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*
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* @tps: Device to read from.
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* @reg: Register to read.
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* @val: Contians the value
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*/
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int tps65217_reg_read(struct tps65217 *tps, unsigned int reg,
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unsigned int *val)
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{
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return regmap_read(tps->regmap, reg, val);
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}
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EXPORT_SYMBOL_GPL(tps65217_reg_read);
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/**
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* tps65217_reg_write: Write a single tps65217 register.
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*
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* @tps65217: Device to write to.
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* @reg: Register to write to.
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* @val: Value to write.
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* @level: Password protected level
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*/
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int tps65217_reg_write(struct tps65217 *tps, unsigned int reg,
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unsigned int val, unsigned int level)
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{
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int ret;
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unsigned int xor_reg_val;
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switch (level) {
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case TPS65217_PROTECT_NONE:
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return regmap_write(tps->regmap, reg, val);
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case TPS65217_PROTECT_L1:
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xor_reg_val = reg ^ TPS65217_PASSWORD_REGS_UNLOCK;
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ret = regmap_write(tps->regmap, TPS65217_REG_PASSWORD,
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xor_reg_val);
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if (ret < 0)
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return ret;
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return regmap_write(tps->regmap, reg, val);
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case TPS65217_PROTECT_L2:
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xor_reg_val = reg ^ TPS65217_PASSWORD_REGS_UNLOCK;
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ret = regmap_write(tps->regmap, TPS65217_REG_PASSWORD,
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xor_reg_val);
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if (ret < 0)
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return ret;
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ret = regmap_write(tps->regmap, reg, val);
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if (ret < 0)
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return ret;
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ret = regmap_write(tps->regmap, TPS65217_REG_PASSWORD,
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xor_reg_val);
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if (ret < 0)
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return ret;
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return regmap_write(tps->regmap, reg, val);
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default:
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return -EINVAL;
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}
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}
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EXPORT_SYMBOL_GPL(tps65217_reg_write);
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/**
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* tps65217_update_bits: Modify bits w.r.t mask, val and level.
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*
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* @tps65217: Device to write to.
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* @reg: Register to read-write to.
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* @mask: Mask.
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* @val: Value to write.
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* @level: Password protected level
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*/
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int tps65217_update_bits(struct tps65217 *tps, unsigned int reg,
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unsigned int mask, unsigned int val, unsigned int level)
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{
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int ret;
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unsigned int data;
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ret = tps65217_reg_read(tps, reg, &data);
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if (ret) {
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dev_err(tps->dev, "Read from reg 0x%x failed\n", reg);
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return ret;
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}
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data &= ~mask;
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data |= val & mask;
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ret = tps65217_reg_write(tps, reg, data, level);
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if (ret)
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dev_err(tps->dev, "Write for reg 0x%x failed\n", reg);
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return ret;
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}
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int tps65217_set_bits(struct tps65217 *tps, unsigned int reg,
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unsigned int mask, unsigned int val, unsigned int level)
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{
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return tps65217_update_bits(tps, reg, mask, val, level);
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}
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EXPORT_SYMBOL_GPL(tps65217_set_bits);
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int tps65217_clear_bits(struct tps65217 *tps, unsigned int reg,
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unsigned int mask, unsigned int level)
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{
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return tps65217_update_bits(tps, reg, mask, 0, level);
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}
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EXPORT_SYMBOL_GPL(tps65217_clear_bits);
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static struct regmap_config tps65217_regmap_config = {
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.reg_bits = 8,
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.val_bits = 8,
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};
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static int __devinit tps65217_probe(struct i2c_client *client,
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const struct i2c_device_id *ids)
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{
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struct tps65217 *tps;
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struct tps65217_board *pdata = client->dev.platform_data;
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int i, ret;
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unsigned int version;
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tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
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if (!tps)
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return -ENOMEM;
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tps->pdata = pdata;
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tps->regmap = regmap_init_i2c(client, &tps65217_regmap_config);
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if (IS_ERR(tps->regmap)) {
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ret = PTR_ERR(tps->regmap);
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dev_err(tps->dev, "Failed to allocate register map: %d\n",
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ret);
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return ret;
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}
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i2c_set_clientdata(client, tps);
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tps->dev = &client->dev;
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ret = tps65217_reg_read(tps, TPS65217_REG_CHIPID, &version);
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if (ret < 0) {
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dev_err(tps->dev, "Failed to read revision"
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" register: %d\n", ret);
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goto err_regmap;
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}
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dev_info(tps->dev, "TPS65217 ID %#x version 1.%d\n",
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(version & TPS65217_CHIPID_CHIP_MASK) >> 4,
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version & TPS65217_CHIPID_REV_MASK);
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for (i = 0; i < TPS65217_NUM_REGULATOR; i++) {
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struct platform_device *pdev;
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pdev = platform_device_alloc("tps65217-pmic", i);
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if (!pdev) {
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dev_err(tps->dev, "Cannot create regulator %d\n", i);
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continue;
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}
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pdev->dev.parent = tps->dev;
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platform_device_add_data(pdev, &pdata->tps65217_init_data[i],
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sizeof(pdata->tps65217_init_data[i]));
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tps->regulator_pdev[i] = pdev;
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platform_device_add(pdev);
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}
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return 0;
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err_regmap:
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regmap_exit(tps->regmap);
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return ret;
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}
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static int __devexit tps65217_remove(struct i2c_client *client)
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{
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struct tps65217 *tps = i2c_get_clientdata(client);
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int i;
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for (i = 0; i < TPS65217_NUM_REGULATOR; i++)
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platform_device_unregister(tps->regulator_pdev[i]);
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regmap_exit(tps->regmap);
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return 0;
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}
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static const struct i2c_device_id tps65217_id_table[] = {
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{"tps65217", 0xF0},
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{/* end of list */}
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};
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MODULE_DEVICE_TABLE(i2c, tps65217_id_table);
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static struct i2c_driver tps65217_driver = {
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.driver = {
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.name = "tps65217",
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},
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.id_table = tps65217_id_table,
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.probe = tps65217_probe,
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.remove = __devexit_p(tps65217_remove),
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};
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static int __init tps65217_init(void)
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{
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return i2c_add_driver(&tps65217_driver);
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}
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subsys_initcall(tps65217_init);
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static void __exit tps65217_exit(void)
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{
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i2c_del_driver(&tps65217_driver);
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}
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module_exit(tps65217_exit);
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MODULE_AUTHOR("AnilKumar Ch <anilkumar@ti.com>");
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MODULE_DESCRIPTION("TPS65217 chip family multi-function driver");
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MODULE_LICENSE("GPL v2");
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283
include/linux/mfd/tps65217.h
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283
include/linux/mfd/tps65217.h
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@ -0,0 +1,283 @@
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/*
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* linux/mfd/tps65217.h
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*
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* Functions to access TPS65217 power management chip.
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*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __LINUX_MFD_TPS65217_H
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#define __LINUX_MFD_TPS65217_H
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#include <linux/i2c.h>
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#include <linux/regulator/driver.h>
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#include <linux/regulator/machine.h>
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/* I2C ID for TPS65217 part */
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#define TPS65217_I2C_ID 0x24
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/* All register addresses */
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#define TPS65217_REG_CHIPID 0X00
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#define TPS65217_REG_PPATH 0X01
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#define TPS65217_REG_INT 0X02
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#define TPS65217_REG_CHGCONFIG0 0X03
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#define TPS65217_REG_CHGCONFIG1 0X04
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#define TPS65217_REG_CHGCONFIG2 0X05
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#define TPS65217_REG_CHGCONFIG3 0X06
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#define TPS65217_REG_WLEDCTRL1 0X07
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#define TPS65217_REG_WLEDCTRL2 0X08
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#define TPS65217_REG_MUXCTRL 0X09
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#define TPS65217_REG_STATUS 0X0A
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#define TPS65217_REG_PASSWORD 0X0B
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#define TPS65217_REG_PGOOD 0X0C
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#define TPS65217_REG_DEFPG 0X0D
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#define TPS65217_REG_DEFDCDC1 0X0E
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#define TPS65217_REG_DEFDCDC2 0X0F
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#define TPS65217_REG_DEFDCDC3 0X10
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#define TPS65217_REG_DEFSLEW 0X11
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#define TPS65217_REG_DEFLDO1 0X12
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#define TPS65217_REG_DEFLDO2 0X13
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#define TPS65217_REG_DEFLS1 0X14
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#define TPS65217_REG_DEFLS2 0X15
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#define TPS65217_REG_ENABLE 0X16
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#define TPS65217_REG_DEFUVLO 0X18
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#define TPS65217_REG_SEQ1 0X19
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#define TPS65217_REG_SEQ2 0X1A
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#define TPS65217_REG_SEQ3 0X1B
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#define TPS65217_REG_SEQ4 0X1C
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#define TPS65217_REG_SEQ5 0X1D
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#define TPS65217_REG_SEQ6 0X1E
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/* Register field definitions */
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#define TPS65217_CHIPID_CHIP_MASK 0xF0
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#define TPS65217_CHIPID_REV_MASK 0x0F
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#define TPS65217_PPATH_ACSINK_ENABLE BIT(7)
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#define TPS65217_PPATH_USBSINK_ENABLE BIT(6)
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#define TPS65217_PPATH_AC_PW_ENABLE BIT(5)
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#define TPS65217_PPATH_USB_PW_ENABLE BIT(4)
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#define TPS65217_PPATH_AC_CURRENT_MASK 0x0C
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#define TPS65217_PPATH_USB_CURRENT_MASK 0x03
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#define TPS65217_INT_PBM BIT(6)
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#define TPS65217_INT_ACM BIT(5)
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#define TPS65217_INT_USBM BIT(4)
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#define TPS65217_INT_PBI BIT(2)
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#define TPS65217_INT_ACI BIT(1)
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#define TPS65217_INT_USBI BIT(0)
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#define TPS65217_CHGCONFIG0_TREG BIT(7)
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#define TPS65217_CHGCONFIG0_DPPM BIT(6)
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#define TPS65217_CHGCONFIG0_TSUSP BIT(5)
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#define TPS65217_CHGCONFIG0_TERMI BIT(4)
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#define TPS65217_CHGCONFIG0_ACTIVE BIT(3)
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#define TPS65217_CHGCONFIG0_CHGTOUT BIT(2)
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#define TPS65217_CHGCONFIG0_PCHGTOUT BIT(1)
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#define TPS65217_CHGCONFIG0_BATTEMP BIT(0)
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#define TPS65217_CHGCONFIG1_TMR_MASK 0xC0
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#define TPS65217_CHGCONFIG1_TMR_ENABLE BIT(5)
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#define TPS65217_CHGCONFIG1_NTC_TYPE BIT(4)
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#define TPS65217_CHGCONFIG1_RESET BIT(3)
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#define TPS65217_CHGCONFIG1_TERM BIT(2)
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#define TPS65217_CHGCONFIG1_SUSP BIT(1)
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#define TPS65217_CHGCONFIG1_CHG_EN BIT(0)
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#define TPS65217_CHGCONFIG2_DYNTMR BIT(7)
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#define TPS65217_CHGCONFIG2_VPREGHG BIT(6)
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#define TPS65217_CHGCONFIG2_VOREG_MASK 0x30
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#define TPS65217_CHGCONFIG3_ICHRG_MASK 0xC0
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#define TPS65217_CHGCONFIG3_DPPMTH_MASK 0x30
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#define TPS65217_CHGCONFIG2_PCHRGT BIT(3)
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#define TPS65217_CHGCONFIG2_TERMIF 0x06
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#define TPS65217_CHGCONFIG2_TRANGE BIT(0)
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#define TPS65217_WLEDCTRL1_ISINK_ENABLE BIT(3)
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#define TPS65217_WLEDCTRL1_ISEL BIT(2)
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#define TPS65217_WLEDCTRL1_FDIM_MASK 0x03
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#define TPS65217_WLEDCTRL2_DUTY_MASK 0x7F
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#define TPS65217_MUXCTRL_MUX_MASK 0x07
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#define TPS65217_STATUS_OFF BIT(7)
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#define TPS65217_STATUS_ACPWR BIT(3)
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#define TPS65217_STATUS_USBPWR BIT(2)
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#define TPS65217_STATUS_PB BIT(0)
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#define TPS65217_PASSWORD_REGS_UNLOCK 0x7D
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#define TPS65217_PGOOD_LDO3_PG BIT(6)
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#define TPS65217_PGOOD_LDO4_PG BIT(5)
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#define TPS65217_PGOOD_DC1_PG BIT(4)
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#define TPS65217_PGOOD_DC2_PG BIT(3)
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#define TPS65217_PGOOD_DC3_PG BIT(2)
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#define TPS65217_PGOOD_LDO1_PG BIT(1)
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#define TPS65217_PGOOD_LDO2_PG BIT(0)
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#define TPS65217_DEFPG_LDO1PGM BIT(3)
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#define TPS65217_DEFPG_LDO2PGM BIT(2)
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#define TPS65217_DEFPG_PGDLY_MASK 0x03
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#define TPS65217_DEFDCDCX_XADJX BIT(7)
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#define TPS65217_DEFDCDCX_DCDC_MASK 0x3F
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#define TPS65217_DEFSLEW_GO BIT(7)
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#define TPS65217_DEFSLEW_GODSBL BIT(6)
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#define TPS65217_DEFSLEW_PFM_EN1 BIT(5)
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||||
#define TPS65217_DEFSLEW_PFM_EN2 BIT(4)
|
||||
#define TPS65217_DEFSLEW_PFM_EN3 BIT(3)
|
||||
#define TPS65217_DEFSLEW_SLEW_MASK 0x07
|
||||
|
||||
#define TPS65217_DEFLDO1_LDO1_MASK 0x0F
|
||||
|
||||
#define TPS65217_DEFLDO2_TRACK BIT(6)
|
||||
#define TPS65217_DEFLDO2_LDO2_MASK 0x3F
|
||||
|
||||
#define TPS65217_DEFLDO3_LDO3_EN BIT(5)
|
||||
#define TPS65217_DEFLDO3_LDO3_MASK 0x1F
|
||||
|
||||
#define TPS65217_DEFLDO4_LDO4_EN BIT(5)
|
||||
#define TPS65217_DEFLDO4_LDO4_MASK 0x1F
|
||||
|
||||
#define TPS65217_ENABLE_LS1_EN BIT(6)
|
||||
#define TPS65217_ENABLE_LS2_EN BIT(5)
|
||||
#define TPS65217_ENABLE_DC1_EN BIT(4)
|
||||
#define TPS65217_ENABLE_DC2_EN BIT(3)
|
||||
#define TPS65217_ENABLE_DC3_EN BIT(2)
|
||||
#define TPS65217_ENABLE_LDO1_EN BIT(1)
|
||||
#define TPS65217_ENABLE_LDO2_EN BIT(0)
|
||||
|
||||
#define TPS65217_DEFUVLO_UVLOHYS BIT(2)
|
||||
#define TPS65217_DEFUVLO_UVLO_MASK 0x03
|
||||
|
||||
#define TPS65217_SEQ1_DC1_SEQ_MASK 0xF0
|
||||
#define TPS65217_SEQ1_DC2_SEQ_MASK 0x0F
|
||||
|
||||
#define TPS65217_SEQ2_DC3_SEQ_MASK 0xF0
|
||||
#define TPS65217_SEQ2_LDO1_SEQ_MASK 0x0F
|
||||
|
||||
#define TPS65217_SEQ3_LDO2_SEQ_MASK 0xF0
|
||||
#define TPS65217_SEQ3_LDO3_SEQ_MASK 0x0F
|
||||
|
||||
#define TPS65217_SEQ4_LDO4_SEQ_MASK 0xF0
|
||||
|
||||
#define TPS65217_SEQ5_DLY1_MASK 0xC0
|
||||
#define TPS65217_SEQ5_DLY2_MASK 0x30
|
||||
#define TPS65217_SEQ5_DLY3_MASK 0x0C
|
||||
#define TPS65217_SEQ5_DLY4_MASK 0x03
|
||||
|
||||
#define TPS65217_SEQ6_DLY5_MASK 0xC0
|
||||
#define TPS65217_SEQ6_DLY6_MASK 0x30
|
||||
#define TPS65217_SEQ6_SEQUP BIT(2)
|
||||
#define TPS65217_SEQ6_SEQDWN BIT(1)
|
||||
#define TPS65217_SEQ6_INSTDWN BIT(0)
|
||||
|
||||
#define TPS65217_MAX_REGISTER 0x1E
|
||||
#define TPS65217_PROTECT_NONE 0
|
||||
#define TPS65217_PROTECT_L1 1
|
||||
#define TPS65217_PROTECT_L2 2
|
||||
|
||||
|
||||
enum tps65217_regulator_id {
|
||||
/* DCDC's */
|
||||
TPS65217_DCDC_1,
|
||||
TPS65217_DCDC_2,
|
||||
TPS65217_DCDC_3,
|
||||
/* LDOs */
|
||||
TPS65217_LDO_1,
|
||||
TPS65217_LDO_2,
|
||||
TPS65217_LDO_3,
|
||||
TPS65217_LDO_4,
|
||||
};
|
||||
|
||||
#define TPS65217_MAX_REG_ID TPS65217_LDO_4
|
||||
|
||||
/* Number of step-down converters available */
|
||||
#define TPS65217_NUM_DCDC 3
|
||||
/* Number of LDO voltage regulators available */
|
||||
#define TPS65217_NUM_LDO 4
|
||||
/* Number of total regulators available */
|
||||
#define TPS65217_NUM_REGULATOR (TPS65217_NUM_DCDC + TPS65217_NUM_LDO)
|
||||
|
||||
/**
|
||||
* struct tps65217_board - packages regulator init data
|
||||
* @tps65217_regulator_data: regulator initialization values
|
||||
*
|
||||
* Board data may be used to initialize regulator.
|
||||
*/
|
||||
struct tps65217_board {
|
||||
struct regulator_init_data *tps65217_init_data;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct tps_info - packages regulator constraints
|
||||
* @name: Voltage regulator name
|
||||
* @min_uV: minimum micro volts
|
||||
* @max_uV: minimum micro volts
|
||||
* @vsel_to_uv: Function pointer to get voltage from selector
|
||||
* @uv_to_vsel: Function pointer to get selector from voltage
|
||||
* @table: Table for non-uniform voltage step-size
|
||||
* @table_len: Length of the voltage table
|
||||
* @enable_mask: Regulator enable mask bits
|
||||
* @set_vout_reg: Regulator output voltage set register
|
||||
* @set_vout_mask: Regulator output voltage set mask
|
||||
*
|
||||
* This data is used to check the regualtor voltage limits while setting.
|
||||
*/
|
||||
struct tps_info {
|
||||
const char *name;
|
||||
int min_uV;
|
||||
int max_uV;
|
||||
int (*vsel_to_uv)(unsigned int vsel);
|
||||
int (*uv_to_vsel)(int uV, unsigned int *vsel);
|
||||
const int *table;
|
||||
unsigned int table_len;
|
||||
unsigned int enable_mask;
|
||||
unsigned int set_vout_reg;
|
||||
unsigned int set_vout_mask;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct tps65217 - tps65217 sub-driver chip access routines
|
||||
*
|
||||
* Device data may be used to access the TPS65217 chip
|
||||
*/
|
||||
|
||||
struct tps65217 {
|
||||
struct device *dev;
|
||||
struct tps65217_board *pdata;
|
||||
struct regulator_desc desc[TPS65217_NUM_REGULATOR];
|
||||
struct regulator_dev *rdev[TPS65217_NUM_REGULATOR];
|
||||
struct tps_info *info[TPS65217_NUM_REGULATOR];
|
||||
struct regmap *regmap;
|
||||
|
||||
/* Client devices */
|
||||
struct platform_device *regulator_pdev[TPS65217_NUM_REGULATOR];
|
||||
};
|
||||
|
||||
static inline struct tps65217 *dev_to_tps65217(struct device *dev)
|
||||
{
|
||||
return dev_get_drvdata(dev);
|
||||
}
|
||||
|
||||
int tps65217_reg_read(struct tps65217 *tps, unsigned int reg,
|
||||
unsigned int *val);
|
||||
int tps65217_reg_write(struct tps65217 *tps, unsigned int reg,
|
||||
unsigned int val, unsigned int level);
|
||||
int tps65217_set_bits(struct tps65217 *tps, unsigned int reg,
|
||||
unsigned int mask, unsigned int val, unsigned int level);
|
||||
int tps65217_clear_bits(struct tps65217 *tps, unsigned int reg,
|
||||
unsigned int mask, unsigned int level);
|
||||
|
||||
#endif /* __LINUX_MFD_TPS65217_H */
|
||||
Loading…
Reference in a new issue