Add a few dynamic debug messages to aid in module level debug.
Signed-off-by: Jerry Hoemann <jerry.hoemann@xxxxxxx>
---
drivers/watchdog/hpwdt.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
index b8205c6e61c1..b82bbeed0e43 100644
--- a/drivers/watchdog/hpwdt.c
+++ b/drivers/watchdog/hpwdt.c
@@ -59,6 +59,7 @@ static int hpwdt_start(struct watchdog_device *wdd)
int control = 0x81 | (pretimeout ? 0x4 : 0);
int reload = SECS_TO_TICKS(wdd->timeout);
+ dev_dbg(wdd->parent, "start watchdog 0x%08x:0x%02x\n", reload, control);
iowrite16(reload, hpwdt_timer_reg);
iowrite8(control, hpwdt_timer_con);
@@ -69,6 +70,8 @@ static void hpwdt_stop(void)
{
unsigned long data;
+ pr_debug("stop watchdog\n");
+
data = ioread8(hpwdt_timer_con);
data &= 0xFE;
iowrite8(data, hpwdt_timer_con);
@@ -85,6 +88,7 @@ static int hpwdt_ping(struct watchdog_device *wdd)
{
int reload = SECS_TO_TICKS(wdd->timeout);
+ dev_dbg(wdd->parent, "ping watchdog 0x%08x\n", reload);
iowrite16(reload, hpwdt_timer_reg);
return 0;
@@ -97,8 +101,11 @@ static unsigned int hpwdt_gettimeleft(struct watchdog_device *wdd)
static int hpwdt_settimeout(struct watchdog_device *wdd, unsigned int val)
{
+ dev_dbg(wdd->parent, "set_timeout = %d\n", val);
+
wdd->timeout = val;
if (val <= wdd->pretimeout) {
+ dev_dbg(wdd->parent, "pretimeout < timeout. Setting to zero\n");
wdd->pretimeout = 0;
pretimeout = 0;
if (watchdog_active(wdd))
@@ -114,12 +121,16 @@ static int hpwdt_set_pretimeout(struct watchdog_device *wdd, unsigned int req)
{
unsigned int val = 0;
+ dev_dbg(wdd->parent, "set_pretimeout = %d\n", req);
if (req) {
val = PRETIMEOUT_SEC;
if (val >= wdd->timeout)
return -EINVAL;
}
+ if (val != req)
+ dev_dbg(wdd->parent, "Rounding pretimeout to: %d\n", val);
+
wdd->pretimeout = val;
pretimeout = !!val;
--
2.13.6
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