watchdog: update geodewdt for new MFGPT API

Update to the new cs5535_mfgpt* API.  The geode-specific wording should
eventually be dropped from this driver...

Signed-off-by: Andres Salomon <dilinger@collabora.co.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index da84fd03850fdd8b5ec93dd1d8e5f3d3ca3d3610..088f32f29a6e9fa9b1563b765394539537c5ba30 100644 (file)
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -368,7 +368,7 @@ config ALIM7101_WDT
 
 config GEODE_WDT
        tristate "AMD Geode CS5535/CS5536 Watchdog"
-       depends on MGEODE_LX
+       depends on CS5535_MFGPT
        help
          This driver enables a watchdog capability built into the
          CS5535/CS5536 companion chips for the AMD Geode GX and LX

diff --git a/drivers/watchdog/geodewdt.c b/drivers/watchdog/geodewdt.c
index 9acf0015a1e747131cbc20d42527a8ccc629b867..38252ff828ca54e3e86340d741e60fe28d588d35 100644 (file)
--- a/drivers/watchdog/geodewdt.c
+++ b/drivers/watchdog/geodewdt.c
@@ -1,6 +1,7 @@
-/* Watchdog timer for the Geode GX/LX with the CS5535/CS5536 companion chip
+/* Watchdog timer for machines with the CS5535/CS5536 companion chip
  *
  * Copyright (C) 2006-2007, Advanced Micro Devices, Inc.
+ * Copyright (C) 2009  Andres Salomon <dilinger@collabora.co.uk>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -19,7 +20,7 @@
 #include <linux/reboot.h>
 #include <linux/uaccess.h>
 
-#include <asm/geode.h>
+#include <linux/cs5535.h>
 
 #define GEODEWDT_HZ 500
 #define GEODEWDT_SCALE 6
@@ -46,25 +47,25 @@ MODULE_PARM_DESC(nowayout,
 
 static struct platform_device *geodewdt_platform_device;
 static unsigned long wdt_flags;
-static int wdt_timer;
+static struct cs5535_mfgpt_timer *wdt_timer;
 static int safe_close;
 
 static void geodewdt_ping(void)
 {
        /* Stop the counter */
-       geode_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, 0);
+       cs5535_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, 0);
 
        /* Reset the counter */
-       geode_mfgpt_write(wdt_timer, MFGPT_REG_COUNTER, 0);
+       cs5535_mfgpt_write(wdt_timer, MFGPT_REG_COUNTER, 0);
 
        /* Enable the counter */
-       geode_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, MFGPT_SETUP_CNTEN);
+       cs5535_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, MFGPT_SETUP_CNTEN);
 }
 
 static void geodewdt_disable(void)
 {
-       geode_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, 0);
-       geode_mfgpt_write(wdt_timer, MFGPT_REG_COUNTER, 0);
+       cs5535_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, 0);
+       cs5535_mfgpt_write(wdt_timer, MFGPT_REG_COUNTER, 0);
 }
 
 static int geodewdt_set_heartbeat(int val)
@@ -72,10 +73,10 @@ static int geodewdt_set_heartbeat(int val)
        if (val < 1 || val > GEODEWDT_MAX_SECONDS)
                return -EINVAL;
 
-       geode_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, 0);
-       geode_mfgpt_write(wdt_timer, MFGPT_REG_CMP2, val * GEODEWDT_HZ);
-       geode_mfgpt_write(wdt_timer, MFGPT_REG_COUNTER, 0);
-       geode_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, MFGPT_SETUP_CNTEN);
+       cs5535_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, 0);
+       cs5535_mfgpt_write(wdt_timer, MFGPT_REG_CMP2, val * GEODEWDT_HZ);
+       cs5535_mfgpt_write(wdt_timer, MFGPT_REG_COUNTER, 0);
+       cs5535_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, MFGPT_SETUP_CNTEN);
 
        timeout = val;
        return 0;
@@ -215,28 +216,25 @@ static struct miscdevice geodewdt_miscdev = {
 
 static int __devinit geodewdt_probe(struct platform_device *dev)
 {
-       int ret, timer;
-
-       timer = geode_mfgpt_alloc_timer(MFGPT_TIMER_ANY, MFGPT_DOMAIN_WORKING);
+       int ret;
 
-       if (timer == -1) {
+       wdt_timer = cs5535_mfgpt_alloc_timer(MFGPT_TIMER_ANY, MFGPT_DOMAIN_WORKING);
+       if (!wdt_timer) {
                printk(KERN_ERR "geodewdt:  No timers were available\n");
                return -ENODEV;
        }
 
-       wdt_timer = timer;
-
        /* Set up the timer */
 
-       geode_mfgpt_write(wdt_timer, MFGPT_REG_SETUP,
+       cs5535_mfgpt_write(wdt_timer, MFGPT_REG_SETUP,
                          GEODEWDT_SCALE | (3 << 8));
 
        /* Set up comparator 2 to reset when the event fires */
-       geode_mfgpt_toggle_event(wdt_timer, MFGPT_CMP2, MFGPT_EVENT_RESET, 1);
+       cs5535_mfgpt_toggle_event(wdt_timer, MFGPT_CMP2, MFGPT_EVENT_RESET, 1);
 
        /* Set up the initial timeout */
 
-       geode_mfgpt_write(wdt_timer, MFGPT_REG_CMP2,
+       cs5535_mfgpt_write(wdt_timer, MFGPT_REG_CMP2,
                timeout * GEODEWDT_HZ);
 
        ret = misc_register(&geodewdt_miscdev);