WATCHDOG: octeon-wdt: Use I/O clock rate for timing calculations.

The creation of the I/O clock domain requires some adjustments.  Since
the watchdog counters are clocked by the I/O clock, use its rate for
timing calculations.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: linux-watchdog@vger.kernel.org
Patchwork: http://patchwork.linux-mips.org/patch/1659/
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/drivers/watchdog/octeon-wdt-main.c b/drivers/watchdog/octeon-wdt-main.c
index 9099238..945ee83 100644 (file)
--- a/drivers/watchdog/octeon-wdt-main.c
+++ b/drivers/watchdog/octeon-wdt-main.c
@@ -478,7 +478,7 @@ static void octeon_wdt_calc_parameters(int t)
 
        countdown_reset = periods > 2 ? periods - 2 : 0;
        heartbeat = t;
-       timeout_cnt = ((octeon_get_clock_rate() >> 8) * timeout_sec) >> 8;
+       timeout_cnt = ((octeon_get_io_clock_rate() >> 8) * timeout_sec) >> 8;
 }
 
 static int octeon_wdt_set_heartbeat(int t)
@@ -677,7 +677,7 @@ static int __init octeon_wdt_init(void)
        max_timeout_sec = 6;
        do {
                max_timeout_sec--;
-               timeout_cnt = ((octeon_get_clock_rate() >> 8) * max_timeout_sec) >> 8;
+               timeout_cnt = ((octeon_get_io_clock_rate() >> 8) * max_timeout_sec) >> 8;
        } while (timeout_cnt > 65535);
 
        BUG_ON(timeout_cnt == 0);