Commit 6362ec27 authored by Alexey Dobriyan's avatar Alexey Dobriyan Committed by Mike Frysinger
Browse files

Blackfin: switch /proc/gpio to seq_file 



->read_proc interface is going away, switch to seq_file.

Signed-off-by: default avatarAlexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: default avatarMike Frysinger <vapier@gentoo.org>
parent d763c58a

arch/blackfin/kernel/bfin_gpio.c

+20 −11
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ 
#include <linux/module.h>

#include <linux/err.h>

#include <linux/proc_fs.h>

#include <linux/seq_file.h>

#include <asm/blackfin.h>

#include <asm/gpio.h>

#include <asm/portmux.h>
@@ -1204,35 +1205,43 @@ void bfin_reset_boot_spi_cs(unsigned short pin) 
}



#if defined(CONFIG_PROC_FS)

static int gpio_proc_read(char *buf, char **start, off_t offset,

			  int len, int *unused_i, void *unused_v)

static int gpio_proc_show(struct seq_file *m, void *v)

{

	int c, irq, gpio, outlen = 0;

	int c, irq, gpio;



	for (c = 0; c < MAX_RESOURCES; c++) {

		irq = is_reserved(gpio_irq, c, 1);

		gpio = is_reserved(gpio, c, 1);

		if (!check_gpio(c) && (gpio || irq))

			len = sprintf(buf, "GPIO_%d: \t%s%s \t\tGPIO %s\n", c,

			seq_printf(m, "GPIO_%d: \t%s%s \t\tGPIO %s\n", c,

				 get_label(c), (gpio && irq) ? " *" : "",

				 get_gpio_dir(c) ? "OUTPUT" : "INPUT");

		else if (is_reserved(peri, c, 1))

			len = sprintf(buf, "GPIO_%d: \t%s \t\tPeripheral\n", c, get_label(c));

			seq_printf(m, "GPIO_%d: \t%s \t\tPeripheral\n", c, get_label(c));

		else

			continue;

		buf += len;

		outlen += len;

	}

	return outlen;



	return 0;

}



static int gpio_proc_open(struct inode *inode, struct file *file)

{

	return single_open(file, gpio_proc_show, NULL);

}



static const struct file_operations gpio_proc_ops = {

	.open		= gpio_proc_open,

	.read		= seq_read,

	.llseek		= seq_lseek,

	.release	= single_release,

};



static __init int gpio_register_proc(void)

{

	struct proc_dir_entry *proc_gpio;



	proc_gpio = create_proc_entry("gpio", S_IRUGO, NULL);

	if (proc_gpio)

		proc_gpio->read_proc = gpio_proc_read;

	proc_gpio = proc_create("gpio", S_IRUGO, NULL, &gpio_proc_ops);

	return proc_gpio != NULL;

}

__initcall(gpio_register_proc);