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Release 4.14 drivers/regulator/mc13xxx-regulator-core.c

/*
 * Regulator Driver for Freescale MC13xxx PMIC
 *
 * Copyright 2010 Yong Shen <yong.shen@linaro.org>
 *
 * Based on mc13783 regulator driver :
 * Copyright (C) 2008 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
 * Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * Regs infos taken from mc13xxx drivers from freescale and mc13xxx.pdf file
 * from freescale
 */

#include <linux/mfd/mc13xxx.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
#include <linux/platform_device.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/module.h>
#include <linux/of.h>
#include "mc13xxx.h"


static int mc13xxx_regulator_enable(struct regulator_dev *rdev) { struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev); struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators; int id = rdev_get_id(rdev); dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id); return mc13xxx_reg_rmw(priv->mc13xxx, mc13xxx_regulators[id].reg, mc13xxx_regulators[id].enable_bit, mc13xxx_regulators[id].enable_bit); }

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PersonTokensPropCommitsCommitProp
Yong Shen8098.77%150.00%
Alexander Shiyan11.23%150.00%
Total81100.00%2100.00%


static int mc13xxx_regulator_disable(struct regulator_dev *rdev) { struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev); struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators; int id = rdev_get_id(rdev); dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id); return mc13xxx_reg_rmw(priv->mc13xxx, mc13xxx_regulators[id].reg, mc13xxx_regulators[id].enable_bit, 0); }

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Yong Shen7598.68%150.00%
Alexander Shiyan11.32%150.00%
Total76100.00%2100.00%


static int mc13xxx_regulator_is_enabled(struct regulator_dev *rdev) { struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev); struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators; int ret, id = rdev_get_id(rdev); unsigned int val; ret = mc13xxx_reg_read(priv->mc13xxx, mc13xxx_regulators[id].reg, &val); if (ret) return ret; return (val & mc13xxx_regulators[id].enable_bit) != 0; }

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PersonTokensPropCommitsCommitProp
Yong Shen84100.00%1100.00%
Total84100.00%1100.00%


static int mc13xxx_regulator_set_voltage_sel(struct regulator_dev *rdev, unsigned selector) { struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev); struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators; int id = rdev_get_id(rdev); return mc13xxx_reg_rmw(priv->mc13xxx, mc13xxx_regulators[id].vsel_reg, mc13xxx_regulators[id].vsel_mask, selector << mc13xxx_regulators[id].vsel_shift); }

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PersonTokensPropCommitsCommitProp
Yong Shen6995.83%133.33%
Axel Lin22.78%133.33%
Alexander Shiyan11.39%133.33%
Total72100.00%3100.00%


static int mc13xxx_regulator_get_voltage(struct regulator_dev *rdev) { struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev); struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators; int ret, id = rdev_get_id(rdev); unsigned int val; dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id); ret = mc13xxx_reg_read(priv->mc13xxx, mc13xxx_regulators[id].vsel_reg, &val); if (ret) return ret; val = (val & mc13xxx_regulators[id].vsel_mask) >> mc13xxx_regulators[id].vsel_shift; dev_dbg(rdev_get_dev(rdev), "%s id: %d val: %d\n", __func__, id, val); BUG_ON(val >= mc13xxx_regulators[id].desc.n_voltages); return rdev->desc->volt_table[val]; }

Contributors

PersonTokensPropCommitsCommitProp
Yong Shen13895.83%133.33%
Axel Lin64.17%266.67%
Total144100.00%3100.00%

struct regulator_ops mc13xxx_regulator_ops = { .enable = mc13xxx_regulator_enable, .disable = mc13xxx_regulator_disable, .is_enabled = mc13xxx_regulator_is_enabled, .list_voltage = regulator_list_voltage_table, .set_voltage_sel = mc13xxx_regulator_set_voltage_sel, .get_voltage = mc13xxx_regulator_get_voltage, }; EXPORT_SYMBOL_GPL(mc13xxx_regulator_ops);
int mc13xxx_fixed_regulator_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV, unsigned *selector) { int id = rdev_get_id(rdev); dev_dbg(rdev_get_dev(rdev), "%s id: %d min_uV: %d max_uV: %d\n", __func__, id, min_uV, max_uV); if (min_uV <= rdev->desc->volt_table[0] && rdev->desc->volt_table[0] <= max_uV) { *selector = 0; return 0; } else { return -EINVAL; } }

Contributors

PersonTokensPropCommitsCommitProp
Yong Shen6574.71%125.00%
Axel Lin2225.29%375.00%
Total87100.00%4100.00%

EXPORT_SYMBOL_GPL(mc13xxx_fixed_regulator_set_voltage); struct regulator_ops mc13xxx_fixed_regulator_ops = { .enable = mc13xxx_regulator_enable, .disable = mc13xxx_regulator_disable, .is_enabled = mc13xxx_regulator_is_enabled, .list_voltage = regulator_list_voltage_table, .set_voltage = mc13xxx_fixed_regulator_set_voltage, }; EXPORT_SYMBOL_GPL(mc13xxx_fixed_regulator_ops); #ifdef CONFIG_OF
int mc13xxx_get_num_regulators_dt(struct platform_device *pdev) { struct device_node *parent; int num; if (!pdev->dev.parent->of_node) return -ENODEV; parent = of_get_child_by_name(pdev->dev.parent->of_node, "regulators"); if (!parent) return -ENODEV; num = of_get_child_count(parent); of_node_put(parent); return num; }

Contributors

PersonTokensPropCommitsCommitProp
Shawn Guo5069.44%116.67%
Sachin Kamat912.50%233.33%
Axel Lin912.50%233.33%
Alexander Shiyan45.56%116.67%
Total72100.00%6100.00%

EXPORT_SYMBOL_GPL(mc13xxx_get_num_regulators_dt);
struct mc13xxx_regulator_init_data *mc13xxx_parse_regulators_dt( struct platform_device *pdev, struct mc13xxx_regulator *regulators, int num_regulators) { struct mc13xxx_regulator_priv *priv = platform_get_drvdata(pdev); struct mc13xxx_regulator_init_data *data, *p; struct device_node *parent, *child; int i, parsed = 0; if (!pdev->dev.parent->of_node) return NULL; parent = of_get_child_by_name(pdev->dev.parent->of_node, "regulators"); if (!parent) return NULL; data = devm_kzalloc(&pdev->dev, sizeof(*data) * priv->num_regulators, GFP_KERNEL); if (!data) { of_node_put(parent); return NULL; } p = data; for_each_child_of_node(parent, child) { int found = 0; for (i = 0; i < num_regulators; i++) { if (!regulators[i].desc.name) continue; if (!of_node_cmp(child->name, regulators[i].desc.name)) { p->id = i; p->init_data = of_get_regulator_init_data( &pdev->dev, child, &regulators[i].desc); p->node = child; p++; parsed++; found = 1; break; } } if (!found) dev_warn(&pdev->dev, "Unknown regulator: %s\n", child->name); } of_node_put(parent); priv->num_regulators = parsed; return data; }

Contributors

PersonTokensPropCommitsCommitProp
Shawn Guo18568.27%112.50%
Alexander Shiyan4817.71%225.00%
Axel Lin124.43%112.50%
Matt Sealey103.69%112.50%
Javier Martinez Canillas82.95%112.50%
Sachin Kamat82.95%225.00%
Total271100.00%8100.00%

EXPORT_SYMBOL_GPL(mc13xxx_parse_regulators_dt); #endif MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Yong Shen <yong.shen@linaro.org>"); MODULE_DESCRIPTION("Regulator Driver for Freescale MC13xxx PMIC"); MODULE_ALIAS("mc13xxx-regulator-core");

Overall Contributors

PersonTokensPropCommitsCommitProp
Yong Shen62259.75%15.26%
Shawn Guo24623.63%15.26%
Alexander Shiyan555.28%315.79%
Axel Lin555.28%736.84%
Sachin Kamat171.63%210.53%
Mark Brown151.44%15.26%
Matt Sealey100.96%15.26%
David S. Miller100.96%15.26%
Javier Martinez Canillas80.77%15.26%
Paul Gortmaker30.29%15.26%
Total1041100.00%19100.00%
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