add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/nvmem/mtk-efuse.c
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@@ -1,15 +1,7 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright (c) 2015 MediaTek Inc.
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  * Author: Andrew-CT Chen <andrew-ct.chen@mediatek.com>
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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 version 2 as
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- * published by the Free Software Foundation.
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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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 #include <linux/device.h>
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@@ -36,19 +28,6 @@
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 	return 0;
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 }
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-static int mtk_reg_write(void *context,
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-			 unsigned int reg, void *_val, size_t bytes)
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-{
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-	struct mtk_efuse_priv *priv = context;
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-	u32 *val = _val;
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-	int i = 0, words = bytes / 4;
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-
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-	while (words--)
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-		writel(*val++, priv->base + reg + (i++ * 4));
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-
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-	return 0;
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-}
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-
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 static int mtk_efuse_probe(struct platform_device *pdev)
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 {
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 	struct device *dev = &pdev->dev;
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@@ -69,7 +48,6 @@
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 	econfig.stride = 4;
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 	econfig.word_size = 4;
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 	econfig.reg_read = mtk_reg_read;
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-	econfig.reg_write = mtk_reg_write;
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 	econfig.size = resource_size(res);
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 	econfig.priv = priv;
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 	econfig.dev = dev;