cregit-Linux how code gets into the kernel

Release 4.11 drivers/power/reset/syscon-reboot-mode.c

/*
 * Copyright (c) 2016, Fuzhou Rockchip Electronics Co., Ltd
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#include <linux/init.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/reboot.h>
#include <linux/regmap.h>
#include <linux/mfd/syscon.h>
#include "reboot-mode.h"


struct syscon_reboot_mode {
	
struct regmap *map;
	
struct reboot_mode_driver reboot;
	
u32 offset;
	
u32 mask;
};


static int syscon_reboot_mode_write(struct reboot_mode_driver *reboot, unsigned int magic) { struct syscon_reboot_mode *syscon_rbm; int ret; syscon_rbm = container_of(reboot, struct syscon_reboot_mode, reboot); ret = regmap_update_bits(syscon_rbm->map, syscon_rbm->offset, syscon_rbm->mask, magic); if (ret < 0) dev_err(reboot->dev, "update reboot mode bits failed\n"); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Andy Yan72100.00%1100.00%
Total72100.00%1100.00%


static int syscon_reboot_mode_probe(struct platform_device *pdev) { int ret; struct syscon_reboot_mode *syscon_rbm; syscon_rbm = devm_kzalloc(&pdev->dev, sizeof(*syscon_rbm), GFP_KERNEL); if (!syscon_rbm) return -ENOMEM; syscon_rbm->reboot.dev = &pdev->dev; syscon_rbm->reboot.write = syscon_reboot_mode_write; syscon_rbm->mask = 0xffffffff; syscon_rbm->map = syscon_node_to_regmap(pdev->dev.parent->of_node); if (IS_ERR(syscon_rbm->map)) return PTR_ERR(syscon_rbm->map); if (of_property_read_u32(pdev->dev.of_node, "offset", &syscon_rbm->offset)) return -EINVAL; of_property_read_u32(pdev->dev.of_node, "mask", &syscon_rbm->mask); ret = devm_reboot_mode_register(&pdev->dev, &syscon_rbm->reboot); if (ret) dev_err(&pdev->dev, "can't register reboot mode\n"); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Andy Yan16796.53%150.00%
Björn Andersson63.47%150.00%
Total173100.00%2100.00%

static const struct of_device_id syscon_reboot_mode_of_match[] = { { .compatible = "syscon-reboot-mode" }, {} }; MODULE_DEVICE_TABLE(of, syscon_reboot_mode_of_match); static struct platform_driver syscon_reboot_mode_driver = { .probe = syscon_reboot_mode_probe, .driver = { .name = "syscon-reboot-mode", .of_match_table = syscon_reboot_mode_of_match, }, }; module_platform_driver(syscon_reboot_mode_driver); MODULE_AUTHOR("Andy Yan <andy.yan@rock-chips.com"); MODULE_DESCRIPTION("SYSCON reboot mode driver"); MODULE_LICENSE("GPL v2");

Overall Contributors

PersonTokensPropCommitsCommitProp
Andy Yan35296.44%133.33%
Javier Martinez Canillas71.92%133.33%
Björn Andersson61.64%133.33%
Total365100.00%3100.00%
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