mv watchdog tree under drivers

move watchdog tree from drivers/char/watchdog to drivers/watchdog.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

1 files changed, 0 insertions, 358 deletions

diff --git a/drivers/char/watchdog/pnx4008_wdt.c b/drivers/char/watchdog/pnx4008_wdt.c
deleted file mode 100644
index 22f8873dd09..00000000000
--- a/drivers/char/watchdog/pnx4008_wdt.c
+++ /dev/null
@@ -1,358 +0,0 @@
-/*
- * drivers/char/watchdog/pnx4008_wdt.c
- *
- * Watchdog driver for PNX4008 board
- *
- * Authors: Dmitry Chigirev <source@mvista.com>,
- * 	    Vitaly Wool <vitalywool@gmail.com>
- * Based on sa1100 driver,
- * Copyright (C) 2000 Oleg Drokin <green@crimea.edu>
- *
- * 2005-2006 (c) MontaVista Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/fs.h>
-#include <linux/miscdevice.h>
-#include <linux/watchdog.h>
-#include <linux/init.h>
-#include <linux/bitops.h>
-#include <linux/ioport.h>
-#include <linux/device.h>
-#include <linux/platform_device.h>
-#include <linux/clk.h>
-#include <linux/spinlock.h>
-
-#include <asm/hardware.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
-
-#define MODULE_NAME "PNX4008-WDT: "
-
-/* WatchDog Timer - Chapter 23 Page 207 */
-
-#define DEFAULT_HEARTBEAT 19
-#define MAX_HEARTBEAT     60
-
-/* Watchdog timer register set definition */
-#define WDTIM_INT(p)     ((p) + 0x0)
-#define WDTIM_CTRL(p)    ((p) + 0x4)
-#define WDTIM_COUNTER(p) ((p) + 0x8)
-#define WDTIM_MCTRL(p)   ((p) + 0xC)
-#define WDTIM_MATCH0(p)  ((p) + 0x10)
-#define WDTIM_EMR(p)     ((p) + 0x14)
-#define WDTIM_PULSE(p)   ((p) + 0x18)
-#define WDTIM_RES(p)     ((p) + 0x1C)
-
-/* WDTIM_INT bit definitions */
-#define MATCH_INT      1
-
-/* WDTIM_CTRL bit definitions */
-#define COUNT_ENAB     1
-#define RESET_COUNT    (1<<1)
-#define DEBUG_EN       (1<<2)
-
-/* WDTIM_MCTRL bit definitions */
-#define MR0_INT        1
-#undef  RESET_COUNT0
-#define RESET_COUNT0   (1<<2)
-#define STOP_COUNT0    (1<<2)
-#define M_RES1         (1<<3)
-#define M_RES2         (1<<4)
-#define RESFRC1        (1<<5)
-#define RESFRC2        (1<<6)
-
-/* WDTIM_EMR bit definitions */
-#define EXT_MATCH0      1
-#define MATCH_OUTPUT_HIGH (2<<4)	/*a MATCH_CTRL setting */
-
-/* WDTIM_RES bit definitions */
-#define WDOG_RESET      1	/* read only */
-
-#define WDOG_COUNTER_RATE 13000000	/*the counter clock is 13 MHz fixed */
-
-static int nowayout = WATCHDOG_NOWAYOUT;
-static int heartbeat = DEFAULT_HEARTBEAT;
-
-static spinlock_t io_lock;
-static unsigned long wdt_status;
-#define WDT_IN_USE        0
-#define WDT_OK_TO_CLOSE   1
-#define WDT_REGION_INITED 2
-#define WDT_DEVICE_INITED 3
-
-static unsigned long boot_status;
-
-static struct resource	*wdt_mem;
-static void __iomem	*wdt_base;
-struct clk		*wdt_clk;
-
-static void wdt_enable(void)
-{
-	spin_lock(&io_lock);
-
-	if (wdt_clk)
-		clk_set_rate(wdt_clk, 1);
-
-	/* stop counter, initiate counter reset */
-	__raw_writel(RESET_COUNT, WDTIM_CTRL(wdt_base));
-	/*wait for reset to complete. 100% guarantee event */
-	while (__raw_readl(WDTIM_COUNTER(wdt_base)))
-		cpu_relax();
-	/* internal and external reset, stop after that */
-	__raw_writel(M_RES2 | STOP_COUNT0 | RESET_COUNT0,
-		WDTIM_MCTRL(wdt_base));
-	/* configure match output */
-	__raw_writel(MATCH_OUTPUT_HIGH, WDTIM_EMR(wdt_base));
-	/* clear interrupt, just in case */
-	__raw_writel(MATCH_INT, WDTIM_INT(wdt_base));
-	/* the longest pulse period 65541/(13*10^6) seconds ~ 5 ms. */
-	__raw_writel(0xFFFF, WDTIM_PULSE(wdt_base));
-	__raw_writel(heartbeat * WDOG_COUNTER_RATE, WDTIM_MATCH0(wdt_base));
-	/*enable counter, stop when debugger active */
-	__raw_writel(COUNT_ENAB | DEBUG_EN, WDTIM_CTRL(wdt_base));
-
-	spin_unlock(&io_lock);
-}
-
-static void wdt_disable(void)
-{
-	spin_lock(&io_lock);
-
-	__raw_writel(0, WDTIM_CTRL(wdt_base));	/*stop counter */
-	if (wdt_clk)
-		clk_set_rate(wdt_clk, 0);
-
-	spin_unlock(&io_lock);
-}
-
-static int pnx4008_wdt_open(struct inode *inode, struct file *file)
-{
-	if (test_and_set_bit(WDT_IN_USE, &wdt_status))
-		return -EBUSY;
-
-	clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
-
-	wdt_enable();
-
-	return nonseekable_open(inode, file);
-}
-
-static ssize_t
-pnx4008_wdt_write(struct file *file, const char *data, size_t len,
-		  loff_t * ppos)
-{
-	if (len) {
-		if (!nowayout) {
-			size_t i;
-
-			clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
-
-			for (i = 0; i != len; i++) {
-				char c;
-
-				if (get_user(c, data + i))
-					return -EFAULT;
-				if (c == 'V')
-					set_bit(WDT_OK_TO_CLOSE, &wdt_status);
-			}
-		}
-		wdt_enable();
-	}
-
-	return len;
-}
-
-static struct watchdog_info ident = {
-	.options = WDIOF_CARDRESET | WDIOF_MAGICCLOSE |
-	    WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
-	.identity = "PNX4008 Watchdog",
-};
-
-static int
-pnx4008_wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
-		  unsigned long arg)
-{
-	int ret = -ENOTTY;
-	int time;
-
-	switch (cmd) {
-	case WDIOC_GETSUPPORT:
-		ret = copy_to_user((struct watchdog_info *)arg, &ident,
-				   sizeof(ident)) ? -EFAULT : 0;
-		break;
-
-	case WDIOC_GETSTATUS:
-		ret = put_user(0, (int *)arg);
-		break;
-
-	case WDIOC_GETBOOTSTATUS:
-		ret = put_user(boot_status, (int *)arg);
-		break;
-
-	case WDIOC_SETTIMEOUT:
-		ret = get_user(time, (int *)arg);
-		if (ret)
-			break;
-
-		if (time <= 0 || time > MAX_HEARTBEAT) {
-			ret = -EINVAL;
-			break;
-		}
-
-		heartbeat = time;
-		wdt_enable();
-		/* Fall through */
-
-	case WDIOC_GETTIMEOUT:
-		ret = put_user(heartbeat, (int *)arg);
-		break;
-
-	case WDIOC_KEEPALIVE:
-		wdt_enable();
-		ret = 0;
-		break;
-	}
-	return ret;
-}
-
-static int pnx4008_wdt_release(struct inode *inode, struct file *file)
-{
-	if (!test_bit(WDT_OK_TO_CLOSE, &wdt_status))
-		printk(KERN_WARNING "WATCHDOG: Device closed unexpectdly\n");
-
-	wdt_disable();
-	clear_bit(WDT_IN_USE, &wdt_status);
-	clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
-
-	return 0;
-}
-
-static const struct file_operations pnx4008_wdt_fops = {
-	.owner = THIS_MODULE,
-	.llseek = no_llseek,
-	.write = pnx4008_wdt_write,
-	.ioctl = pnx4008_wdt_ioctl,
-	.open = pnx4008_wdt_open,
-	.release = pnx4008_wdt_release,
-};
-
-static struct miscdevice pnx4008_wdt_miscdev = {
-	.minor = WATCHDOG_MINOR,
-	.name = "watchdog",
-	.fops = &pnx4008_wdt_fops,
-};
-
-static int pnx4008_wdt_probe(struct platform_device *pdev)
-{
-	int ret = 0, size;
-	struct resource *res;
-
-	spin_lock_init(&io_lock);
-
-	if (heartbeat < 1 || heartbeat > MAX_HEARTBEAT)
-		heartbeat = DEFAULT_HEARTBEAT;
-
-	printk(KERN_INFO MODULE_NAME
-		"PNX4008 Watchdog Timer: heartbeat %d sec\n", heartbeat);
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (res == NULL) {
-		printk(KERN_INFO MODULE_NAME
-			"failed to get memory region resouce\n");
-		return -ENOENT;
-	}
-
-	size = res->end - res->start + 1;
-	wdt_mem = request_mem_region(res->start, size, pdev->name);
-
-	if (wdt_mem == NULL) {
-		printk(KERN_INFO MODULE_NAME "failed to get memory region\n");
-		return -ENOENT;
-	}
-	wdt_base = (void __iomem *)IO_ADDRESS(res->start);
-
-	wdt_clk = clk_get(&pdev->dev, "wdt_ck");
-	if (IS_ERR(wdt_clk)) {
-		ret = PTR_ERR(wdt_clk);
-		release_resource(wdt_mem);
-		kfree(wdt_mem);
-		goto out;
-	} else
-		clk_set_rate(wdt_clk, 1);
-
-	ret = misc_register(&pnx4008_wdt_miscdev);
-	if (ret < 0) {
-		printk(KERN_ERR MODULE_NAME "cannot register misc device\n");
-		release_resource(wdt_mem);
-		kfree(wdt_mem);
-		clk_set_rate(wdt_clk, 0);
-	} else {
-		boot_status = (__raw_readl(WDTIM_RES(wdt_base)) & WDOG_RESET) ?
-		    WDIOF_CARDRESET : 0;
-		wdt_disable();		/*disable for now */
-		set_bit(WDT_DEVICE_INITED, &wdt_status);
-	}
-
-out:
-	return ret;
-}
-
-static int pnx4008_wdt_remove(struct platform_device *pdev)
-{
-	misc_deregister(&pnx4008_wdt_miscdev);
-	if (wdt_clk) {
-		clk_set_rate(wdt_clk, 0);
-		clk_put(wdt_clk);
-		wdt_clk = NULL;
-	}
-	if (wdt_mem) {
-		release_resource(wdt_mem);
-		kfree(wdt_mem);
-		wdt_mem = NULL;
-	}
-	return 0;
-}
-
-static struct platform_driver platform_wdt_driver = {
-	.driver = {
-		.name = "watchdog",
-	},
-	.probe = pnx4008_wdt_probe,
-	.remove = pnx4008_wdt_remove,
-};
-
-static int __init pnx4008_wdt_init(void)
-{
-	return platform_driver_register(&platform_wdt_driver);
-}
-
-static void __exit pnx4008_wdt_exit(void)
-{
-	return platform_driver_unregister(&platform_wdt_driver);
-}
-
-module_init(pnx4008_wdt_init);
-module_exit(pnx4008_wdt_exit);
-
-MODULE_AUTHOR("MontaVista Software, Inc. <source@mvista.com>");
-MODULE_DESCRIPTION("PNX4008 Watchdog Driver");
-
-module_param(heartbeat, int, 0);
-MODULE_PARM_DESC(heartbeat,
-		 "Watchdog heartbeat period in seconds from 1 to "
-		 __MODULE_STRING(MAX_HEARTBEAT) ", default "
-		 __MODULE_STRING(DEFAULT_HEARTBEAT));
-
-module_param(nowayout, int, 0);
-MODULE_PARM_DESC(nowayout,
-		 "Set to 1 to keep watchdog running after device release");
-
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);