cregit-Linux how code gets into the kernel

Release 4.16 drivers/nvmem/uniphier-efuse.c

Directory: drivers/nvmem
/*
 * UniPhier eFuse driver
 *
 * Copyright (C) 2017 Socionext Inc.
 *
 * 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.
 */

#include <linux/device.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/nvmem-provider.h>
#include <linux/platform_device.h>


struct uniphier_efuse_priv {
	
void __iomem *base;
};


static int uniphier_reg_read(void *context, unsigned int reg, void *_val, size_t bytes) { struct uniphier_efuse_priv *priv = context; u8 *val = _val; int offs; for (offs = 0; offs < bytes; offs += sizeof(u8)) *val++ = readb(priv->base + reg + offs); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Keiji Hayashibara6995.83%150.00%
Kunihiko Hayashi34.17%150.00%
Total72100.00%2100.00%


static int uniphier_efuse_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct resource *res; struct nvmem_device *nvmem; struct nvmem_config econfig = {}; struct uniphier_efuse_priv *priv; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); priv->base = devm_ioremap_resource(dev, res); if (IS_ERR(priv->base)) return PTR_ERR(priv->base); econfig.stride = 1; econfig.word_size = 1; econfig.read_only = true; econfig.reg_read = uniphier_reg_read; econfig.size = resource_size(res); econfig.priv = priv; econfig.dev = dev; nvmem = nvmem_register(&econfig); if (IS_ERR(nvmem)) return PTR_ERR(nvmem); platform_set_drvdata(pdev, nvmem); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Keiji Hayashibara17998.90%150.00%
Kunihiko Hayashi21.10%150.00%
Total181100.00%2100.00%


static int uniphier_efuse_remove(struct platform_device *pdev) { struct nvmem_device *nvmem = platform_get_drvdata(pdev); return nvmem_unregister(nvmem); }

Contributors

PersonTokensPropCommitsCommitProp
Keiji Hayashibara27100.00%1100.00%
Total27100.00%1100.00%

static const struct of_device_id uniphier_efuse_of_match[] = { { .compatible = "socionext,uniphier-efuse",}, {/* sentinel */}, }; MODULE_DEVICE_TABLE(of, uniphier_efuse_of_match); static struct platform_driver uniphier_efuse_driver = { .probe = uniphier_efuse_probe, .remove = uniphier_efuse_remove, .driver = { .name = "uniphier-efuse", .of_match_table = uniphier_efuse_of_match, }, }; module_platform_driver(uniphier_efuse_driver); MODULE_AUTHOR("Keiji Hayashibara <hayashibara.keiji@socionext.com>"); MODULE_DESCRIPTION("UniPhier eFuse driver"); MODULE_LICENSE("GPL v2");

Overall Contributors

PersonTokensPropCommitsCommitProp
Keiji Hayashibara38098.70%150.00%
Kunihiko Hayashi51.30%150.00%
Total385100.00%2100.00%
Directory: drivers/nvmem
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