mirror of
https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-09-08 17:18:05 -04:00
Fixed MTP to work with TWRP
This commit is contained in:
awab228
commit
f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
403
drivers/regulator/s2mu003-regulator.c
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403
drivers/regulator/s2mu003-regulator.c
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@ -0,0 +1,403 @@
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/*
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* s2mu003_regulator.c - Regulator driver for the Samsung s2mu003
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*
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* Copyright (C) 2014 Samsung Electronics
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* 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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <linux/module.h>
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#include <linux/bug.h>
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <linux/gpio.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/platform_device.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/samsung/s2mu003.h>
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#include <linux/mfd/samsung/s2mu003-private.h>
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#include <linux/regulator/of_regulator.h>
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struct s2mu003_regulator_info {
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s2mu003_mfd_chip_t *iodev;
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int num_regulators;
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struct regulator_dev *rdev[S2MU003_REGULATOR_MAX];
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int opmode[S2MU003_REGULATOR_MAX];
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};
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static int s2m_enable(struct regulator_dev *rdev)
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{
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struct s2mu003_regulator_info *info = rdev_get_drvdata(rdev);
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struct i2c_client *i2c = info->iodev->i2c_client;
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return s2mu003_assign_bits(i2c, rdev->desc->enable_reg,
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rdev->desc->enable_mask,
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info->opmode[rdev_get_id(rdev)]);
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}
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static int s2m_disable_regmap(struct regulator_dev *rdev)
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{
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struct s2mu003_regulator_info *info = rdev_get_drvdata(rdev);
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struct i2c_client *i2c = info->iodev->i2c_client;
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u8 val;
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if (rdev->desc->enable_is_inverted)
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val = rdev->desc->enable_mask;
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else
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val = 0;
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return s2mu003_assign_bits(i2c, rdev->desc->enable_reg,
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rdev->desc->enable_mask, val);
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}
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static int s2m_is_enabled_regmap(struct regulator_dev *rdev)
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{
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struct s2mu003_regulator_info *info = rdev_get_drvdata(rdev);
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struct i2c_client *i2c = info->iodev->i2c_client;
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int ret;
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u8 val;
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ret = s2mu003_reg_read(i2c, rdev->desc->enable_reg);
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if (ret < 0)
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return ret;
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val = (u8)ret;
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if (rdev->desc->enable_is_inverted)
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return (val & rdev->desc->enable_mask) == 0;
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else
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return (val & rdev->desc->enable_mask) != 0;
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}
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static int s2m_get_voltage_sel_regmap(struct regulator_dev *rdev)
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{
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struct s2mu003_regulator_info *info = rdev_get_drvdata(rdev);
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struct i2c_client *i2c = info->iodev->i2c_client;
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int ret;
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u8 val;
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ret = s2mu003_reg_read(i2c, rdev->desc->vsel_reg);
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if (ret < 0)
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return ret;
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val = (u8)ret;
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val &= rdev->desc->vsel_mask;
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return val;
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}
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static int s2m_set_voltage_sel_regmap(struct regulator_dev *rdev, unsigned sel)
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{
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struct s2mu003_regulator_info *info = rdev_get_drvdata(rdev);
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struct i2c_client *i2c = info->iodev->i2c_client;
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int ret;
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ret = s2mu003_assign_bits(i2c, rdev->desc->vsel_reg,
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rdev->desc->vsel_mask, sel);
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if (ret < 0)
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goto out;
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if (rdev->desc->apply_bit)
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ret = s2mu003_assign_bits(i2c, rdev->desc->apply_reg,
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rdev->desc->apply_bit,
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rdev->desc->apply_bit);
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return ret;
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out:
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pr_warn("%s: failed to set voltage_sel_regmap\n", rdev->desc->name);
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return ret;
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}
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static int s2m_set_voltage_sel_regmap_buck(struct regulator_dev *rdev,
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unsigned sel)
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{
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struct s2mu003_regulator_info *info = rdev_get_drvdata(rdev);
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struct i2c_client *i2c = info->iodev->i2c_client;
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int ret;
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ret = s2mu003_assign_bits(i2c, rdev->desc->vsel_reg,
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rdev->desc->vsel_mask, sel);
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if (ret < 0)
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goto out;
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if (rdev->desc->apply_bit)
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ret = s2mu003_assign_bits(i2c, rdev->desc->apply_reg,
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rdev->desc->apply_bit,
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rdev->desc->apply_bit);
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return ret;
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out:
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pr_warn("%s: failed to set voltage_sel_regmap\n", rdev->desc->name);
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return ret;
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}
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static int s2m_set_voltage_time_sel(struct regulator_dev *rdev,
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unsigned int old_selector,
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unsigned int new_selector)
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{
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int old_volt, new_volt;
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/* sanity check */
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if (!rdev->desc->ops->list_voltage)
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return -EINVAL;
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old_volt = rdev->desc->ops->list_voltage(rdev, old_selector);
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new_volt = rdev->desc->ops->list_voltage(rdev, new_selector);
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if (old_selector < new_selector)
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return DIV_ROUND_UP(new_volt - old_volt, S2MU003_RAMP_DELAY);
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return 0;
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}
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static struct regulator_ops s2mu003_ldo_ops = {
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.list_voltage = regulator_list_voltage_linear,
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.map_voltage = regulator_map_voltage_linear,
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.is_enabled = s2m_is_enabled_regmap,
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.enable = s2m_enable,
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.disable = s2m_disable_regmap,
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.get_voltage_sel = s2m_get_voltage_sel_regmap,
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.set_voltage_sel = s2m_set_voltage_sel_regmap,
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.set_voltage_time_sel = s2m_set_voltage_time_sel,
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};
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static struct regulator_ops s2mu003_buck_ops = {
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.list_voltage = regulator_list_voltage_linear,
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.map_voltage = regulator_map_voltage_linear,
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.is_enabled = s2m_is_enabled_regmap,
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.enable = s2m_enable,
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.disable = s2m_disable_regmap,
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.get_voltage_sel = s2m_get_voltage_sel_regmap,
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.set_voltage_sel = s2m_set_voltage_sel_regmap_buck,
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.set_voltage_time_sel = s2m_set_voltage_time_sel,
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};
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static struct regulator_desc regulators[S2MU003_REGULATOR_MAX] = {
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/* name, id, ops, min_uv, uV_step, vsel_reg, enable_reg */
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{
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.name = "s2mu003-ldo1",
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.id = S2MU003_CAMLDO,
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.ops = &s2mu003_ldo_ops,
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.type = REGULATOR_VOLTAGE,
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.owner = THIS_MODULE,
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.min_uV = S2MU003_LDO_MIN1,
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.uV_step = S2MU003_LDO_STEP1,
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.n_voltages = S2MU003_CAMLDO_N_VOLTAGES,
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.vsel_reg = S2MU003_LDO_CTRL,
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.vsel_mask = S2MU003_CAMLDO_VSEL_MASK,
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.enable_reg = S2MU003_Buck_LDO_CTRL,
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.enable_mask = S2MU003_CAMLDO_ENABLE_MASK,
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.enable_time = S2MU003_ENABLE_TIME_LDO,
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},
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{
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.name = "s2mu003-buck1",
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.id = S2MU003_BUCK,
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.ops = &s2mu003_buck_ops,
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.type = REGULATOR_VOLTAGE,
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.owner = THIS_MODULE,
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.min_uV = S2MU003_BUCK_MIN1,
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.uV_step = S2MU003_BUCK_STEP1,
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.n_voltages = S2MU003_BUCK_N_VOLTAGES,
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.vsel_reg = S2MU003_Buck_CTRL,
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.vsel_mask = S2MU003_BUCK_VSEL_MASK,
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.enable_reg = S2MU003_Buck_LDO_CTRL,
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.enable_mask = S2MU003_BUCK_ENABLE_MASK,
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.enable_time = S2MU003_ENABLE_TIME_BUCK,
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},
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};
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#ifdef CONFIG_OF
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static int s2mu003_pmic_dt_parse_pdata(s2mu003_mfd_chip_t *iodev,
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s2mu003_mfd_platform_data_t *pdata)
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{
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struct device_node *pmic_np, *regulators_np, *reg_np;
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s2mu003_regulator_platform_data_t *rdata;
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unsigned int i;
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pmic_np = iodev->dev->of_node;
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if (!pmic_np) {
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dev_err(iodev->dev, "could not find pmic sub-node\n");
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return -ENODEV;
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}
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regulators_np = of_find_node_by_name(pmic_np, "regulators");
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if (!regulators_np) {
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dev_err(iodev->dev, "could not find regulators sub-node\n");
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return -EINVAL;
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}
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/* count the number of regulators to be supported in pmic */
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pdata->num_regulators = 0;
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for_each_child_of_node(regulators_np, reg_np) {
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pdata->num_regulators++;
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}
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rdata = devm_kzalloc(iodev->dev, sizeof(*rdata) *
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pdata->num_regulators, GFP_KERNEL);
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if (!rdata) {
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dev_err(iodev->dev,
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"could not allocate memory for regulator data\n");
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return -ENOMEM;
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}
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pdata->regulators = rdata;
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for_each_child_of_node(regulators_np, reg_np) {
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for (i = 0; i < ARRAY_SIZE(regulators); i++)
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if (!of_node_cmp(reg_np->name,
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regulators[i].name))
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break;
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if (i == ARRAY_SIZE(regulators)) {
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dev_warn(iodev->dev,
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"don't know how to configure regulator %s\n",
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reg_np->name);
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continue;
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}
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rdata->id = i;
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rdata->initdata = of_get_regulator_init_data(
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iodev->dev, reg_np);
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rdata->reg_node = reg_np;
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rdata++;
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}
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of_node_put(regulators_np);
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return 0;
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}
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#else
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static int s2mu003_pmic_dt_parse_pdata(s2mu003_mfd_chip_t *iodev,
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s2mu003_mfd_platform_data_t *pdata)
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{
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return 0;
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}
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#endif /* CONFIG_OF */
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static int s2mu003_pmic_probe(struct platform_device *pdev)
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{
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s2mu003_mfd_chip_t *iodev = dev_get_drvdata(pdev->dev.parent);
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s2mu003_mfd_platform_data_t *pdata = iodev->pdata;
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struct regulator_config config = { };
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struct s2mu003_regulator_info *s2mu003;
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struct i2c_client *i2c;
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int i, ret;
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dev_info(&pdev->dev, "%s\n", __func__);
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if (!pdata) {
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pr_info("[%s:%d] !pdata\n", __FILE__, __LINE__);
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dev_err(pdev->dev.parent, "No platform init data supplied.\n");
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return -ENODEV;
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}
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if (iodev->dev->of_node) {
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ret = s2mu003_pmic_dt_parse_pdata(iodev, pdata);
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if (ret)
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return ret;
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}
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s2mu003 = devm_kzalloc(&pdev->dev, sizeof(
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struct s2mu003_regulator_info),
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GFP_KERNEL);
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if (!s2mu003) {
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pr_info("[%s:%d] if (!s2mu003)\n", __FILE__, __LINE__);
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return -ENOMEM;
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}
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s2mu003->iodev = iodev;
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s2mu003->num_regulators = pdata->num_regulators;
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platform_set_drvdata(pdev, s2mu003);
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i2c = s2mu003->iodev->i2c_client;
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pr_info("[%s:%d] pdata->num_regulators:%d\n", __FILE__, __LINE__,
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pdata->num_regulators);
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for (i = 0; i < pdata->num_regulators; i++) {
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int id = pdata->regulators[i].id;
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config.dev = &pdev->dev;
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config.init_data = pdata->regulators[i].initdata;
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config.driver_data = s2mu003;
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config.of_node = pdata->regulators[i].reg_node;
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s2mu003->opmode[id] = regulators[id].enable_mask;
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s2mu003->rdev[i] = regulator_register(®ulators[id], &config);
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if (IS_ERR(s2mu003->rdev[i])) {
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ret = PTR_ERR(s2mu003->rdev[i]);
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dev_err(&pdev->dev, "regulator init failed for %d\n",
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id);
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s2mu003->rdev[i] = NULL;
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goto err;
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}
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}
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ret = s2mu003_assign_bits(i2c, S2MU003_Buck_LDO_CTRL, 0x01, 0x01);
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if (ret < 0)
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pr_info("[%s:%d] fail to set PFM mode\n", __FILE__, __LINE__);
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return 0;
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err:
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pr_info("[%s:%d] err:\n", __FILE__, __LINE__);
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for (i = 0; i < s2mu003->num_regulators; i++)
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if (s2mu003->rdev[i])
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regulator_unregister(s2mu003->rdev[i]);
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kfree(s2mu003);
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return ret;
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}
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static int s2mu003_pmic_remove(struct platform_device *pdev)
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{
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struct s2mu003_regulator_info *s2mu003 = platform_get_drvdata(pdev);
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int i;
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dev_info(&pdev->dev, "%s\n", __func__);
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for (i = 0; i < s2mu003->num_regulators; i++)
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if (s2mu003->rdev[i])
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regulator_unregister(s2mu003->rdev[i]);
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kfree(s2mu003->rdev);
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kfree(s2mu003);
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return 0;
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}
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static const struct platform_device_id s2mu003_pmic_id[] = {
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{"s2mu003-regulator", 0},
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{},
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};
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MODULE_DEVICE_TABLE(platform, s2mu003_pmic_id);
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static struct platform_driver s2mu003_pmic_driver = {
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.driver = {
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.name = "s2mu003-regulator",
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.owner = THIS_MODULE,
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},
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.probe = s2mu003_pmic_probe,
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.remove = s2mu003_pmic_remove,
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.id_table = s2mu003_pmic_id,
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};
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static int __init s2mu003_pmic_init(void)
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{
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return platform_driver_register(&s2mu003_pmic_driver);
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}
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subsys_initcall(s2mu003_pmic_init);
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static void __exit s2mu003_pmic_cleanup(void)
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{
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platform_driver_unregister(&s2mu003_pmic_driver);
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}
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module_exit(s2mu003_pmic_cleanup);
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MODULE_DESCRIPTION("SAMSUNG s2mu003 Regulator Driver");
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MODULE_LICENSE("GPL");
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