修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/arch/powerpc/platforms/powernv/vas-debug.c
..
..
@@ -1,10 +1,6 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Copyright 2016-17 IBM Corp.
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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
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- * as published by the Free Software Foundation; either version
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- * 2 of the License, or (at your option) any later version.
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  */
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5
 
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 #define pr_fmt(fmt) "vas: " fmt
..
..
@@ -30,7 +26,7 @@
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 	}
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 }
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28
 
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-static int info_dbg_show(struct seq_file *s, void *private)
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+static int info_show(struct seq_file *s, void *private)
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 {
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 	struct vas_window *window = s->private;
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32
 
..
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@@ -42,24 +38,14 @@
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38
 
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 	seq_printf(s, "Type: %s, %s\n", cop_to_str(window->cop),
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 					window->tx_win ? "Send" : "Receive");
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-	seq_printf(s, "Pid : %d\n", window->pid);
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+	seq_printf(s, "Pid : %d\n", vas_window_pid(window));
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42
 
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 unlock:
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 	mutex_unlock(&vas_mutex);
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 	return 0;
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 }
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47
 
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-static int info_dbg_open(struct inode *inode, struct file *file)
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-{
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-	return single_open(file, info_dbg_show, inode->i_private);
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-}
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-
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-static const struct file_operations info_fops = {
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-	.open		= info_dbg_open,
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-	.read		= seq_read,
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-	.llseek		= seq_lseek,
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-	.release	= single_release,
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-};
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+DEFINE_SHOW_ATTRIBUTE(info);
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49
 
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 static inline void print_reg(struct seq_file *s, struct vas_window *win,
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 			char *name, u32 reg)
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@@ -67,7 +53,7 @@
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 	seq_printf(s, "0x%016llx %s\n", read_hvwc_reg(win, name, reg), name);
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 }
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55
 
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-static int hvwc_dbg_show(struct seq_file *s, void *private)
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+static int hvwc_show(struct seq_file *s, void *private)
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 {
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 	struct vas_window *window = s->private;
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59
 
..
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@@ -115,17 +101,7 @@
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 	return 0;
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 }
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103
 
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-static int hvwc_dbg_open(struct inode *inode, struct file *file)
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-{
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-	return single_open(file, hvwc_dbg_show, inode->i_private);
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-}
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-
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-static const struct file_operations hvwc_fops = {
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-	.open		= hvwc_dbg_open,
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-	.read		= seq_read,
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-	.llseek		= seq_lseek,
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-	.release	= single_release,
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-};
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+DEFINE_SHOW_ATTRIBUTE(hvwc);
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 void vas_window_free_dbgdir(struct vas_window *window)
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 {
..
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@@ -139,7 +115,7 @@
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 void vas_window_init_dbgdir(struct vas_window *window)
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 {
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-	struct dentry *f, *d;
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+	struct dentry *d;
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119
 
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 	if (!window->vinst->dbgdir)
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 		return;
..
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@@ -151,28 +127,10 @@
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 	snprintf(window->dbgname, 16, "w%d", window->winid);
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128
 
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 	d = debugfs_create_dir(window->dbgname, window->vinst->dbgdir);
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-	if (IS_ERR(d))
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-		goto free_name;
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-
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 	window->dbgdir = d;
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131
 
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-	f = debugfs_create_file("info", 0444, d, window, &info_fops);
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-	if (IS_ERR(f))
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-		goto remove_dir;
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-
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-	f = debugfs_create_file("hvwc", 0444, d, window, &hvwc_fops);
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-	if (IS_ERR(f))
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-		goto remove_dir;
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-
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-	return;
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-
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-remove_dir:
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-	debugfs_remove_recursive(window->dbgdir);
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-	window->dbgdir = NULL;
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-
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-free_name:
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-	kfree(window->dbgname);
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-	window->dbgname = NULL;
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+	debugfs_create_file("info", 0444, d, window, &info_fops);
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+	debugfs_create_file("hvwc", 0444, d, window, &hvwc_fops);
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 }
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 void vas_instance_init_dbgdir(struct vas_instance *vinst)
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@@ -180,8 +138,6 @@
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 	struct dentry *d;
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139
 
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 	vas_init_dbgdir();
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-	if (!vas_debugfs)
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-		return;
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141
 
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 	vinst->dbgname = kzalloc(16, GFP_KERNEL);
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 	if (!vinst->dbgname)
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@@ -190,16 +146,7 @@
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 	snprintf(vinst->dbgname, 16, "v%d", vinst->vas_id);
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 	d = debugfs_create_dir(vinst->dbgname, vas_debugfs);
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-	if (IS_ERR(d))
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-		goto free_name;
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-
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 	vinst->dbgdir = d;
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-	return;
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-
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-free_name:
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-	kfree(vinst->dbgname);
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-	vinst->dbgname = NULL;
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-	vinst->dbgdir = NULL;
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 }
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 /*
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@@ -215,6 +162,4 @@
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162
 
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 	first_time = false;
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 	vas_debugfs = debugfs_create_dir("vas", NULL);
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-	if (IS_ERR(vas_debugfs))
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-		vas_debugfs = NULL;
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 }