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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/char/hw_random/pic32-rng.c
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@@ -1,17 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * PIC32 RNG driver
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  *
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  * Joshua Henderson <joshua.henderson@microchip.com>
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  * Copyright (C) 2016 Microchip Technology Inc.  All rights reserved.
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- *
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- * This program is free software; you can distribute it and/or modify it
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- * 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 it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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- * for more details.
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  */
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 #include <linux/clk.h>
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@@ -78,7 +70,6 @@
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 static int pic32_rng_probe(struct platform_device *pdev)
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 {
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 	struct pic32_rng *priv;
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-	struct resource *res;
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 	u32 v;
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 	int ret;
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@@ -86,8 +77,7 @@
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 	if (!priv)
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 		return -ENOMEM;
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-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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-	priv->base = devm_ioremap_resource(&pdev->dev, res);
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+	priv->base = devm_platform_ioremap_resource(pdev, 0);
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 	if (IS_ERR(priv->base))
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 		return PTR_ERR(priv->base);
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@@ -129,7 +119,7 @@
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 	return 0;
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 }
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-static const struct of_device_id pic32_rng_of_match[] = {
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+static const struct of_device_id pic32_rng_of_match[] __maybe_unused = {
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 	{ .compatible	= "microchip,pic32mzda-rng", },
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 	{ /* sentinel */ }
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 };