[ARM] 5390/1: AT91: Watchdog fixes

The recently merged AT91SAM9 watchdog driver uses the
AT91SAM9X_WATCHDOG config variable, whereas the original version of
the driver (and the platform support code) used AT91SAM9_WATCHDOG.
This causes the watchdog platform_device to never be registered, and
therefore the driver not to be initialized.

This patch:
- updates the platform support code to use AT91SAM9X_WATCHDOG.
- includes <linux/io.h> to fix compile error (same fix as was applied
to at91rm9200_wdt.c)
- fixes comment regarding watchdog clock-rates in at91rm9200.

Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

12 files changed, 13 insertions, 12 deletions

diff --git a/arch/arm/configs/at91sam9260ek_defconfig b/arch/arm/configs/at91sam9260ek_defconfig
index e0ee706..98e2f3d 100644
--- a/arch/arm/configs/at91sam9260ek_defconfig
+++ b/arch/arm/configs/at91sam9260ek_defconfig
@@ -608,7 +608,7 @@ CONFIG_WATCHDOG_NOWAYOUT=y
 # Watchdog Device Drivers
 #
 # CONFIG_SOFT_WATCHDOG is not set
-CONFIG_AT91SAM9_WATCHDOG=y
+CONFIG_AT91SAM9X_WATCHDOG=y
 
 #
 # USB-based Watchdog Cards
diff --git a/arch/arm/configs/at91sam9261ek_defconfig b/arch/arm/configs/at91sam9261ek_defconfig
index 01d1ef9..1494561 100644
--- a/arch/arm/configs/at91sam9261ek_defconfig
+++ b/arch/arm/configs/at91sam9261ek_defconfig
@@ -700,7 +700,7 @@ CONFIG_WATCHDOG_NOWAYOUT=y
 # Watchdog Device Drivers
 #
 # CONFIG_SOFT_WATCHDOG is not set
-CONFIG_AT91SAM9_WATCHDOG=y
+CONFIG_AT91SAM9X_WATCHDOG=y
 
 #
 # USB-based Watchdog Cards
diff --git a/arch/arm/configs/at91sam9263ek_defconfig b/arch/arm/configs/at91sam9263ek_defconfig
index 036a126..21599f3 100644
--- a/arch/arm/configs/at91sam9263ek_defconfig
+++ b/arch/arm/configs/at91sam9263ek_defconfig
@@ -710,7 +710,7 @@ CONFIG_WATCHDOG_NOWAYOUT=y
 # Watchdog Device Drivers
 #
 # CONFIG_SOFT_WATCHDOG is not set
-CONFIG_AT91SAM9_WATCHDOG=y
+CONFIG_AT91SAM9X_WATCHDOG=y
 
 #
 # USB-based Watchdog Cards
diff --git a/arch/arm/configs/at91sam9rlek_defconfig b/arch/arm/configs/at91sam9rlek_defconfig
index 237a2a6..e2df81a 100644
--- a/arch/arm/configs/at91sam9rlek_defconfig
+++ b/arch/arm/configs/at91sam9rlek_defconfig
@@ -606,7 +606,7 @@ CONFIG_WATCHDOG_NOWAYOUT=y
 # Watchdog Device Drivers
 #
 # CONFIG_SOFT_WATCHDOG is not set
-CONFIG_AT91SAM9_WATCHDOG=y
+CONFIG_AT91SAM9X_WATCHDOG=y
 
 #
 # Sonics Silicon Backplane
diff --git a/arch/arm/configs/qil-a9260_defconfig b/arch/arm/configs/qil-a9260_defconfig
index cd1d717..9b32d0e 100644
--- a/arch/arm/configs/qil-a9260_defconfig
+++ b/arch/arm/configs/qil-a9260_defconfig
@@ -727,7 +727,7 @@ CONFIG_WATCHDOG_NOWAYOUT=y
 # Watchdog Device Drivers
 #
 # CONFIG_SOFT_WATCHDOG is not set
-# CONFIG_AT91SAM9_WATCHDOG is not set
+# CONFIG_AT91SAM9X_WATCHDOG is not set
 
 #
 # USB-based Watchdog Cards
diff --git a/arch/arm/mach-at91/at91cap9_devices.c b/arch/arm/mach-at91/at91cap9_devices.c
index 9eca220..412aa49 100644
--- a/arch/arm/mach-at91/at91cap9_devices.c
+++ b/arch/arm/mach-at91/at91cap9_devices.c
@@ -697,7 +697,7 @@ static void __init at91_add_device_rtt(void)
  *  Watchdog
  * -------------------------------------------------------------------- */
 
-#if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE)
+#if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
 static struct platform_device at91cap9_wdt_device = {
 	.name		= "at91_wdt",
 	.id		= -1,
diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index fdde1ea..d74c9ac 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -643,7 +643,7 @@ static void __init at91_add_device_rtt(void)
  *  Watchdog
  * -------------------------------------------------------------------- */
 
-#if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE)
+#if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
 static struct platform_device at91sam9260_wdt_device = {
 	.name		= "at91_wdt",
 	.id		= -1,
diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index 1728975..59fc483 100644
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -621,7 +621,7 @@ static void __init at91_add_device_rtt(void)
  *  Watchdog
  * -------------------------------------------------------------------- */
 
-#if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE)
+#if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
 static struct platform_device at91sam9261_wdt_device = {
 	.name		= "at91_wdt",
 	.id		= -1,
diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c
index b753cb8..134af97 100644
--- a/arch/arm/mach-at91/at91sam9263_devices.c
+++ b/arch/arm/mach-at91/at91sam9263_devices.c
@@ -854,7 +854,7 @@ static void __init at91_add_device_rtt(void)
  *  Watchdog
  * -------------------------------------------------------------------- */
 
-#if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE)
+#if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
 static struct platform_device at91sam9263_wdt_device = {
 	.name		= "at91_wdt",
 	.id		= -1,
diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c
index 145324f..7281865 100644
--- a/arch/arm/mach-at91/at91sam9rl_devices.c
+++ b/arch/arm/mach-at91/at91sam9rl_devices.c
@@ -609,7 +609,7 @@ static void __init at91_add_device_rtt(void)
  *  Watchdog
  * -------------------------------------------------------------------- */
 
-#if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE)
+#if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
 static struct platform_device at91sam9rl_wdt_device = {
 	.name		= "at91_wdt",
 	.id		= -1,
diff --git a/drivers/watchdog/at91rm9200_wdt.c b/drivers/watchdog/at91rm9200_wdt.c
index 5531691..e35d545 100644
--- a/drivers/watchdog/at91rm9200_wdt.c
+++ b/drivers/watchdog/at91rm9200_wdt.c
@@ -107,10 +107,10 @@ static int at91_wdt_close(struct inode *inode, struct file *file)
 static int at91_wdt_settimeout(int new_time)
 {
 	/*
-	 * All counting occurs at SLOW_CLOCK / 128 = 0.256 Hz
+	 * All counting occurs at SLOW_CLOCK / 128 = 256 Hz
 	 *
 	 * Since WDV is a 16-bit counter, the maximum period is
-	 * 65536 / 0.256 = 256 seconds.
+	 * 65536 / 256 = 256 seconds.
 	 */
 	if ((new_time <= 0) || (new_time > WDT_MAX_TIME))
 		return -EINVAL;
diff --git a/drivers/watchdog/at91sam9_wdt.c b/drivers/watchdog/at91sam9_wdt.c
index b1da287..a56ac84 100644
--- a/drivers/watchdog/at91sam9_wdt.c
+++ b/drivers/watchdog/at91sam9_wdt.c
@@ -18,6 +18,7 @@
 #include <linux/errno.h>
 #include <linux/fs.h>
 #include <linux/init.h>
+#include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/miscdevice.h>
 #include <linux/module.h>