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e6b5be2be4
Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEABECAAYFAlSOD20ACgkQMUfUDdst+ylLPACg2QrW1oHhdTMT9WI8jihlHVRM 53kAoLeteByQ3iVwWurwwseRPiWa8+MI =OVRS -----END PGP SIGNATURE----- Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core update from Greg KH: "Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while" * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits) Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries" fs: debugfs: add forward declaration for struct device type firmware class: Deletion of an unnecessary check before the function call "vunmap" firmware loader: fix hung task warning dump devcoredump: provide a one-way disable function device: Add dev_<level>_once variants ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries ath: use seq_file api for ath9k debugfs files debugfs: add helper function to create device related seq_file drivers/base: cacheinfo: remove noisy error boot message Revert "core: platform: add warning if driver has no owner" drivers: base: support cpu cache information interface to userspace via sysfs drivers: base: add cpu_device_create to support per-cpu devices topology: replace custom attribute macros with standard DEVICE_ATTR* cpumask: factor out show_cpumap into separate helper function driver core: Fix unbalanced device reference in drivers_probe driver core: fix race with userland in device_add() sysfs/kernfs: make read requests on pre-alloc files use the buffer. sysfs/kernfs: allow attributes to request write buffer be pre-allocated. fs: sysfs: return EGBIG on write if offset is larger than file size ...
270 lines
8.6 KiB
C
270 lines
8.6 KiB
C
/*
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* tps65218-regulator.c
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*
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* Regulator driver for TPS65218 PMIC
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*
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* Copyright (C) 2014 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 version 2 as
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* published by the Free Software Foundation.
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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 expressed 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 version 2 for more details.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/device.h>
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#include <linux/init.h>
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#include <linux/err.h>
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#include <linux/platform_device.h>
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#include <linux/of_device.h>
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#include <linux/regulator/of_regulator.h>
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#include <linux/regulator/driver.h>
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#include <linux/regulator/machine.h>
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#include <linux/mfd/tps65218.h>
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enum tps65218_regulators { DCDC1, DCDC2, DCDC3, DCDC4, DCDC5, DCDC6, LDO1 };
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#define TPS65218_REGULATOR(_name, _id, _ops, _n, _vr, _vm, _er, _em, \
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_lr, _nlr, _delay, _fuv) \
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{ \
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.name = _name, \
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.id = _id, \
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.ops = &_ops, \
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.n_voltages = _n, \
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.type = REGULATOR_VOLTAGE, \
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.owner = THIS_MODULE, \
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.vsel_reg = _vr, \
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.vsel_mask = _vm, \
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.enable_reg = _er, \
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.enable_mask = _em, \
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.volt_table = NULL, \
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.linear_ranges = _lr, \
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.n_linear_ranges = _nlr, \
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.ramp_delay = _delay, \
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.fixed_uV = _fuv \
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} \
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#define TPS65218_INFO(_id, _nm, _min, _max) \
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[_id] = { \
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.id = _id, \
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.name = _nm, \
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.min_uV = _min, \
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.max_uV = _max, \
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}
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static const struct regulator_linear_range dcdc1_dcdc2_ranges[] = {
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REGULATOR_LINEAR_RANGE(850000, 0x0, 0x32, 10000),
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REGULATOR_LINEAR_RANGE(1375000, 0x33, 0x3f, 25000),
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};
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static const struct regulator_linear_range ldo1_dcdc3_ranges[] = {
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REGULATOR_LINEAR_RANGE(900000, 0x0, 0x1a, 25000),
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REGULATOR_LINEAR_RANGE(1600000, 0x1b, 0x3f, 50000),
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};
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static const struct regulator_linear_range dcdc4_ranges[] = {
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REGULATOR_LINEAR_RANGE(1175000, 0x0, 0xf, 25000),
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REGULATOR_LINEAR_RANGE(1600000, 0x10, 0x34, 50000),
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};
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static struct tps_info tps65218_pmic_regs[] = {
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TPS65218_INFO(DCDC1, "DCDC1", 850000, 167500),
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TPS65218_INFO(DCDC2, "DCDC2", 850000, 1675000),
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TPS65218_INFO(DCDC3, "DCDC3", 900000, 3400000),
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TPS65218_INFO(DCDC4, "DCDC4", 1175000, 3400000),
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TPS65218_INFO(DCDC5, "DCDC5", 1000000, 1000000),
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TPS65218_INFO(DCDC6, "DCDC6", 1800000, 1800000),
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TPS65218_INFO(LDO1, "LDO1", 900000, 3400000),
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};
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#define TPS65218_OF_MATCH(comp, label) \
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{ \
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.compatible = comp, \
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.data = &label, \
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}
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static const struct of_device_id tps65218_of_match[] = {
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TPS65218_OF_MATCH("ti,tps65218-dcdc1", tps65218_pmic_regs[DCDC1]),
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TPS65218_OF_MATCH("ti,tps65218-dcdc2", tps65218_pmic_regs[DCDC2]),
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TPS65218_OF_MATCH("ti,tps65218-dcdc3", tps65218_pmic_regs[DCDC3]),
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TPS65218_OF_MATCH("ti,tps65218-dcdc4", tps65218_pmic_regs[DCDC4]),
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TPS65218_OF_MATCH("ti,tps65218-dcdc5", tps65218_pmic_regs[DCDC5]),
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TPS65218_OF_MATCH("ti,tps65218-dcdc6", tps65218_pmic_regs[DCDC6]),
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TPS65218_OF_MATCH("ti,tps65218-ldo1", tps65218_pmic_regs[LDO1]),
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{ }
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};
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MODULE_DEVICE_TABLE(of, tps65218_of_match);
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static int tps65218_pmic_set_voltage_sel(struct regulator_dev *dev,
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unsigned selector)
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{
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int ret;
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struct tps65218 *tps = rdev_get_drvdata(dev);
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unsigned int rid = rdev_get_id(dev);
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/* Set the voltage based on vsel value and write protect level is 2 */
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ret = tps65218_set_bits(tps, dev->desc->vsel_reg, dev->desc->vsel_mask,
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selector, TPS65218_PROTECT_L1);
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/* Set GO bit for DCDC1/2 to initiate voltage transistion */
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switch (rid) {
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case TPS65218_DCDC_1:
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case TPS65218_DCDC_2:
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ret = tps65218_set_bits(tps, TPS65218_REG_CONTRL_SLEW_RATE,
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TPS65218_SLEW_RATE_GO,
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TPS65218_SLEW_RATE_GO,
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TPS65218_PROTECT_L1);
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break;
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}
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return ret;
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}
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static int tps65218_pmic_enable(struct regulator_dev *dev)
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{
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struct tps65218 *tps = rdev_get_drvdata(dev);
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int rid = rdev_get_id(dev);
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if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1)
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return -EINVAL;
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/* Enable the regulator and password protection is level 1 */
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return tps65218_set_bits(tps, dev->desc->enable_reg,
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dev->desc->enable_mask, dev->desc->enable_mask,
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TPS65218_PROTECT_L1);
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}
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static int tps65218_pmic_disable(struct regulator_dev *dev)
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{
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struct tps65218 *tps = rdev_get_drvdata(dev);
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int rid = rdev_get_id(dev);
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if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1)
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return -EINVAL;
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/* Disable the regulator and password protection is level 1 */
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return tps65218_clear_bits(tps, dev->desc->enable_reg,
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dev->desc->enable_mask, TPS65218_PROTECT_L1);
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}
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/* Operations permitted on DCDC1, DCDC2 */
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static struct regulator_ops tps65218_dcdc12_ops = {
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.is_enabled = regulator_is_enabled_regmap,
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.enable = tps65218_pmic_enable,
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.disable = tps65218_pmic_disable,
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.get_voltage_sel = regulator_get_voltage_sel_regmap,
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.set_voltage_sel = tps65218_pmic_set_voltage_sel,
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.list_voltage = regulator_list_voltage_linear_range,
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.map_voltage = regulator_map_voltage_linear_range,
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.set_voltage_time_sel = regulator_set_voltage_time_sel,
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};
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/* Operations permitted on DCDC3, DCDC4 and LDO1 */
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static struct regulator_ops tps65218_ldo1_dcdc34_ops = {
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.is_enabled = regulator_is_enabled_regmap,
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.enable = tps65218_pmic_enable,
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.disable = tps65218_pmic_disable,
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.get_voltage_sel = regulator_get_voltage_sel_regmap,
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.set_voltage_sel = tps65218_pmic_set_voltage_sel,
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.list_voltage = regulator_list_voltage_linear_range,
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.map_voltage = regulator_map_voltage_linear_range,
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};
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/* Operations permitted on DCDC5, DCDC6 */
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static struct regulator_ops tps65218_dcdc56_pmic_ops = {
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.is_enabled = regulator_is_enabled_regmap,
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.enable = tps65218_pmic_enable,
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.disable = tps65218_pmic_disable,
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};
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static const struct regulator_desc regulators[] = {
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TPS65218_REGULATOR("DCDC1", TPS65218_DCDC_1, tps65218_dcdc12_ops, 64,
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TPS65218_REG_CONTROL_DCDC1,
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TPS65218_CONTROL_DCDC1_MASK,
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TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC1_EN,
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dcdc1_dcdc2_ranges, 2, 4000, 0),
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TPS65218_REGULATOR("DCDC2", TPS65218_DCDC_2, tps65218_dcdc12_ops, 64,
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TPS65218_REG_CONTROL_DCDC2,
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TPS65218_CONTROL_DCDC2_MASK,
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TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC2_EN,
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dcdc1_dcdc2_ranges, 2, 4000, 0),
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TPS65218_REGULATOR("DCDC3", TPS65218_DCDC_3, tps65218_ldo1_dcdc34_ops,
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64, TPS65218_REG_CONTROL_DCDC3,
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TPS65218_CONTROL_DCDC3_MASK, TPS65218_REG_ENABLE1,
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TPS65218_ENABLE1_DC3_EN, ldo1_dcdc3_ranges, 2, 0, 0),
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TPS65218_REGULATOR("DCDC4", TPS65218_DCDC_4, tps65218_ldo1_dcdc34_ops,
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53, TPS65218_REG_CONTROL_DCDC4,
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TPS65218_CONTROL_DCDC4_MASK,
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TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC4_EN,
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dcdc4_ranges, 2, 0, 0),
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TPS65218_REGULATOR("DCDC5", TPS65218_DCDC_5, tps65218_dcdc56_pmic_ops,
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1, -1, -1, TPS65218_REG_ENABLE1,
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TPS65218_ENABLE1_DC5_EN, NULL, 0, 0, 1000000),
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TPS65218_REGULATOR("DCDC6", TPS65218_DCDC_6, tps65218_dcdc56_pmic_ops,
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1, -1, -1, TPS65218_REG_ENABLE1,
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TPS65218_ENABLE1_DC6_EN, NULL, 0, 0, 1800000),
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TPS65218_REGULATOR("LDO1", TPS65218_LDO_1, tps65218_ldo1_dcdc34_ops, 64,
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TPS65218_REG_CONTROL_LDO1,
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TPS65218_CONTROL_LDO1_MASK, TPS65218_REG_ENABLE2,
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TPS65218_ENABLE2_LDO1_EN, ldo1_dcdc3_ranges,
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2, 0, 0),
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};
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static int tps65218_regulator_probe(struct platform_device *pdev)
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{
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struct tps65218 *tps = dev_get_drvdata(pdev->dev.parent);
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struct regulator_init_data *init_data;
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const struct tps_info *template;
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struct regulator_dev *rdev;
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const struct of_device_id *match;
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struct regulator_config config = { };
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int id;
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match = of_match_device(tps65218_of_match, &pdev->dev);
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if (!match)
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return -ENODEV;
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template = match->data;
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id = template->id;
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init_data = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node,
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®ulators[id]);
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platform_set_drvdata(pdev, tps);
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tps->info[id] = &tps65218_pmic_regs[id];
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config.dev = &pdev->dev;
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config.init_data = init_data;
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config.driver_data = tps;
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config.regmap = tps->regmap;
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config.of_node = pdev->dev.of_node;
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rdev = devm_regulator_register(&pdev->dev, ®ulators[id], &config);
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if (IS_ERR(rdev)) {
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dev_err(tps->dev, "failed to register %s regulator\n",
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pdev->name);
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return PTR_ERR(rdev);
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}
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return 0;
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}
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static struct platform_driver tps65218_regulator_driver = {
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.driver = {
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.name = "tps65218-pmic",
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.of_match_table = tps65218_of_match,
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},
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.probe = tps65218_regulator_probe,
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};
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module_platform_driver(tps65218_regulator_driver);
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MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>");
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MODULE_DESCRIPTION("TPS65218 voltage regulator driver");
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MODULE_ALIAS("platform:tps65218-pmic");
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MODULE_LICENSE("GPL v2");
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