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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/char/hw_random/mtk-rng.c
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@@ -1,17 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Driver for Mediatek Hardware Random Number Generator
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  *
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  * Copyright (C) 2017 Sean Wang <sean.wang@mediatek.com>
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License as
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- * published by the Free Software Foundation; either version 2 of
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- * the License, or (at your option) any later version.
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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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 #define MTK_RNG_DEV KBUILD_MODNAME
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@@ -114,15 +105,8 @@
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 static int mtk_rng_probe(struct platform_device *pdev)
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 {
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-	struct resource *res;
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 	int ret;
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 	struct mtk_rng *priv;
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-
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-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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-	if (!res) {
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-		dev_err(&pdev->dev, "no iomem resource\n");
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-		return -ENXIO;
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-	}
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 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
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 	if (!priv)
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@@ -144,7 +128,7 @@
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 		return ret;
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 	}
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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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