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Commit ccfd6921 authored by Jerry Hoemann's avatar Jerry Hoemann Committed by Wim Van Sebroeck
Browse files

watchdog: hpwdt: Add dynamic debug 



Add a few dynamic debug messages to aid in module level debug.

Signed-off-by: default avatarJerry Hoemann <jerry.hoemann@hpe.com>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarWim Van Sebroeck <wim@iguana.be>
parent 0458f403

drivers/watchdog/hpwdt.c

+11 −0
Original line number Diff line number Diff line
@@ -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;