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hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/soc/versatile/soc-realview.c
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@@ -1,12 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright (C) 2014 Linaro Ltd.
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  *
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  * Author: Linus Walleij <linus.walleij@linaro.org>
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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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  */
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 #include <linux/init.h>
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 #include <linux/io.h>
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@@ -43,45 +39,47 @@
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 	}
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 }
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-static ssize_t realview_get_manf(struct device *dev,
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-			      struct device_attribute *attr,
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-			      char *buf)
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+static ssize_t
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+manufacturer_show(struct device *dev, struct device_attribute *attr, char *buf)
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 {
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 	return sprintf(buf, "%02x\n", realview_coreid >> 24);
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 }
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-static struct device_attribute realview_manf_attr =
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-	__ATTR(manufacturer,  S_IRUGO, realview_get_manf,  NULL);
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+static DEVICE_ATTR_RO(manufacturer);
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-static ssize_t realview_get_board(struct device *dev,
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-			      struct device_attribute *attr,
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-			      char *buf)
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+static ssize_t
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+board_show(struct device *dev, struct device_attribute *attr, char *buf)
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 {
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 	return sprintf(buf, "HBI-%03x\n", ((realview_coreid >> 16) & 0xfff));
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 }
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-static struct device_attribute realview_board_attr =
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-	__ATTR(board,  S_IRUGO, realview_get_board,  NULL);
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+static DEVICE_ATTR_RO(board);
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-static ssize_t realview_get_arch(struct device *dev,
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-			      struct device_attribute *attr,
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-			      char *buf)
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+static ssize_t
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+fpga_show(struct device *dev, struct device_attribute *attr, char *buf)
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 {
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 	return sprintf(buf, "%s\n", realview_arch_str(realview_coreid));
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 }
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-static struct device_attribute realview_arch_attr =
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-	__ATTR(fpga,  S_IRUGO, realview_get_arch,  NULL);
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+static DEVICE_ATTR_RO(fpga);
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-static ssize_t realview_get_build(struct device *dev,
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-			       struct device_attribute *attr,
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-			       char *buf)
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+static ssize_t
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+build_show(struct device *dev, struct device_attribute *attr, char *buf)
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 {
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 	return sprintf(buf, "%02x\n", (realview_coreid & 0xFF));
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 }
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-static struct device_attribute realview_build_attr =
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-	__ATTR(build,  S_IRUGO, realview_get_build,  NULL);
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+static DEVICE_ATTR_RO(build);
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+
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+static struct attribute *realview_attrs[] = {
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+	&dev_attr_manufacturer.attr,
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+	&dev_attr_board.attr,
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+	&dev_attr_fpga.attr,
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+	&dev_attr_build.attr,
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+	NULL
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+};
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+
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+ATTRIBUTE_GROUPS(realview);
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 static int realview_soc_probe(struct platform_device *pdev)
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 {
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@@ -106,6 +104,7 @@
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 	soc_dev_attr->machine = "RealView";
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 	soc_dev_attr->family = "Versatile";
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+	soc_dev_attr->custom_attr_group = realview_groups[0];
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 	soc_dev = soc_device_register(soc_dev_attr);
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 	if (IS_ERR(soc_dev)) {
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 		kfree(soc_dev_attr);
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@@ -115,11 +114,6 @@
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 			  &realview_coreid);
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 	if (ret)
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 		return -ENODEV;
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-
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-	device_create_file(soc_device_to_device(soc_dev), &realview_manf_attr);
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-	device_create_file(soc_device_to_device(soc_dev), &realview_board_attr);
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-	device_create_file(soc_device_to_device(soc_dev), &realview_arch_attr);
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-	device_create_file(soc_device_to_device(soc_dev), &realview_build_attr);
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 	dev_info(&pdev->dev, "RealView Syscon Core ID: 0x%08x, HBI-%03x\n",
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 		 realview_coreid,