cregit-Linux how code gets into the kernel

Release 4.10 drivers/regulator/vexpress-regulator.c

/*
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * Copyright (C) 2012 ARM Limited
 */


#define DRVNAME "vexpress-regulator"

#define pr_fmt(fmt) DRVNAME ": " fmt

#include <linux/device.h>
#include <linux/err.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/vexpress.h>


struct vexpress_regulator {
	
struct regulator_desc desc;
	
struct regulator_dev *regdev;
	
struct regmap *regmap;
};


static int vexpress_regulator_get_voltage(struct regulator_dev *regdev) { struct vexpress_regulator *reg = rdev_get_drvdata(regdev); u32 uV; int err = regmap_read(reg->regmap, 0, &uV); return err ? err : uV; }

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pawel mollpawel moll46100.00%2100.00%
Total46100.00%2100.00%


static int vexpress_regulator_set_voltage(struct regulator_dev *regdev, int min_uV, int max_uV, unsigned *selector) { struct vexpress_regulator *reg = rdev_get_drvdata(regdev); return regmap_write(reg->regmap, 0, min_uV); }

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pawel mollpawel moll43100.00%2100.00%
Total43100.00%2100.00%

static struct regulator_ops vexpress_regulator_ops_ro = { .get_voltage = vexpress_regulator_get_voltage, }; static struct regulator_ops vexpress_regulator_ops = { .get_voltage = vexpress_regulator_get_voltage, .set_voltage = vexpress_regulator_set_voltage, };
static int vexpress_regulator_probe(struct platform_device *pdev) { struct vexpress_regulator *reg; struct regulator_init_data *init_data; struct regulator_config config = { }; reg = devm_kzalloc(&pdev->dev, sizeof(*reg), GFP_KERNEL); if (!reg) return -ENOMEM; reg->regmap = devm_regmap_init_vexpress_config(&pdev->dev); if (IS_ERR(reg->regmap)) return PTR_ERR(reg->regmap); reg->desc.name = dev_name(&pdev->dev); reg->desc.type = REGULATOR_VOLTAGE; reg->desc.owner = THIS_MODULE; reg->desc.continuous_voltage_range = true; init_data = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node, &reg->desc); if (!init_data) return -EINVAL; init_data->constraints.apply_uV = 0; if (init_data->constraints.min_uV && init_data->constraints.max_uV) reg->desc.ops = &vexpress_regulator_ops; else reg->desc.ops = &vexpress_regulator_ops_ro; config.dev = &pdev->dev; config.init_data = init_data; config.driver_data = reg; config.of_node = pdev->dev.of_node; reg->regdev = devm_regulator_register(&pdev->dev, &reg->desc, &config); if (IS_ERR(reg->regdev)) return PTR_ERR(reg->regdev); platform_set_drvdata(pdev, reg); return 0; }

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pawel mollpawel moll25995.93%250.00%
jingoo hanjingoo han62.22%125.00%
javier martinez canillasjavier martinez canillas51.85%125.00%
Total270100.00%4100.00%

static const struct of_device_id vexpress_regulator_of_match[] = { { .compatible = "arm,vexpress-volt", }, { } }; MODULE_DEVICE_TABLE(of, vexpress_regulator_of_match); static struct platform_driver vexpress_regulator_driver = { .probe = vexpress_regulator_probe, .driver = { .name = DRVNAME, .of_match_table = vexpress_regulator_of_match, }, }; module_platform_driver(vexpress_regulator_driver); MODULE_AUTHOR("Pawel Moll <pawel.moll@arm.com>"); MODULE_DESCRIPTION("Versatile Express regulator"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:vexpress-regulator");

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pawel mollpawel moll49895.77%228.57%
jingoo hanjingoo han71.35%228.57%
luis de bethencourtluis de bethencourt71.35%114.29%
javier martinez canillasjavier martinez canillas50.96%114.29%
axel linaxel lin30.58%114.29%
Total520100.00%7100.00%
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