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authorAndrew Victor <linux@maxim.org.za>2009-02-11 21:23:10 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-02-14 16:01:57 +0000
commit2af29b78618ac8b3a8746337002f108f8fdf56ad (patch)
tree576689b0beb8307d00d709f87a9f654efbb48a30 /drivers/watchdog/at91rm9200_wdt.c
parent98ad6e3b1f5f2303815c063ece91291a597f6044 (diff)
downloadlinux-2af29b78618ac8b3a8746337002f108f8fdf56ad.tar.gz
[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>
Diffstat (limited to 'drivers/watchdog/at91rm9200_wdt.c')
-rw-r--r--drivers/watchdog/at91rm9200_wdt.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/watchdog/at91rm9200_wdt.c b/drivers/watchdog/at91rm9200_wdt.c
index 5531691f46ea..e35d54589232 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;