add ax88772_rst

hc

2024-05-10 9999e48639b3cecb08ffb37358bcba3b48161b29

 kernel/arch/x86/platform/intel-quark/imr.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /**
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  * imr.c -- Intel Isolated Memory Region driver
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  *
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@@ -28,13 +29,14 @@
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 #include <asm/cpu_device_id.h>
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 #include <asm/imr.h>
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 #include <asm/iosf_mbi.h>
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+#include <asm/io.h>
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+
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 #include <linux/debugfs.h>
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 #include <linux/init.h>
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 #include <linux/mm.h>
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 #include <linux/types.h>
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 struct imr_device {
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-	struct dentry	*file;
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 	bool		init;
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 	struct mutex	lock;
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 	int		max_imr;
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@@ -230,13 +232,11 @@
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  * imr_debugfs_register - register debugfs hooks.
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  *
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  * @idev:	pointer to imr_device structure.
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- * @return:	0 on success - errno on failure.
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  */
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-static int imr_debugfs_register(struct imr_device *idev)
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+static void imr_debugfs_register(struct imr_device *idev)
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 {
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-	idev->file = debugfs_create_file("imr_state", 0444, NULL, idev,
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-					 &imr_dbgfs_state_fops);
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-	return PTR_ERR_OR_ZERO(idev->file);
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+	debugfs_create_file("imr_state", 0444, NULL, idev,
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+			    &imr_dbgfs_state_fops);
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 }
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 /**
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@@ -569,7 +569,7 @@
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 }
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 static const struct x86_cpu_id imr_ids[] __initconst = {
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-	{ X86_VENDOR_INTEL, 5, 9 },	/* Intel Quark SoC X1000. */
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+	X86_MATCH_VENDOR_FAM_MODEL(INTEL, 5, INTEL_FAM5_QUARK_X1000, NULL),
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 	{}
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 };
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@@ -581,7 +581,6 @@
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 static int __init imr_init(void)
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 {
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 	struct imr_device *idev = &imr_dev;
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-	int ret;
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 	if (!x86_match_cpu(imr_ids) || !iosf_mbi_available())
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 		return -ENODEV;
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@@ -591,9 +590,7 @@
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 	idev->init = true;
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 	mutex_init(&idev->lock);
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-	ret = imr_debugfs_register(idev);
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-	if (ret != 0)
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-		pr_warn("debugfs register failed!\n");
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+	imr_debugfs_register(idev);
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 	imr_fixup_memmap(idev);
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 	return 0;
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 }