Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2)  * Support for virtual IRQ subgroups debugfs mapping.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * Copyright (C) 2010  Paul Mundt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * Modelled after arch/powerpc/kernel/irq.c.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  * This file is subject to the terms and conditions of the GNU General Public
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  * License.  See the file "COPYING" in the main directory of this archive
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  * for more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/seq_file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/irq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/debugfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "internals.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) static int intc_irq_xlate_debug(struct seq_file *m, void *priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	seq_printf(m, "%-5s  %-7s  %-15s\n", "irq", "enum", "chip name");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	for (i = 1; i < nr_irqs; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 		struct intc_map_entry *entry = intc_irq_xlate_get(i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 		struct intc_desc_int *desc = entry->desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 		if (!desc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 		seq_printf(m, "%5d  ", i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 		seq_printf(m, "0x%05x  ", entry->enum_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 		seq_printf(m, "%-15s\n", desc->chip.name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) static int intc_irq_xlate_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	return single_open(file, intc_irq_xlate_debug, inode->i_private);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) static const struct file_operations intc_irq_xlate_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	.open = intc_irq_xlate_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	.read = seq_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	.llseek = seq_lseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	.release = single_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) static int __init intc_irq_xlate_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 	 * XXX.. use arch_debugfs_dir here when all of the intc users are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	 * converted.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 	if (debugfs_create_file("intc_irq_xlate", S_IRUGO, NULL, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 				&intc_irq_xlate_fops) == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) fs_initcall(intc_irq_xlate_init);