On 03/26/2018 02:17 PM, Eddie James wrote:
Populate the status watchdog operation to return the "timeout status"
register of the ASPEED watchdog.
Signed-off-by: Eddie James <eajames@xxxxxxxxxxxxxxxxxx>
---
drivers/watchdog/aspeed_wdt.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/watchdog/aspeed_wdt.c b/drivers/watchdog/aspeed_wdt.c
index a5b8eb2..d6dd5c9 100644
--- a/drivers/watchdog/aspeed_wdt.c
+++ b/drivers/watchdog/aspeed_wdt.c
@@ -55,6 +55,7 @@ struct aspeed_wdt_config {
#define WDT_CTRL_WDT_INTR BIT(2)
#define WDT_CTRL_RESET_SYSTEM BIT(1)
#define WDT_CTRL_ENABLE BIT(0)
+#define WDT_TIMEOUT_STATUS 0x10
/*
* WDT_RESET_WIDTH controls the characteristics of the external pulse (if
@@ -138,6 +139,13 @@ static int aspeed_wdt_ping(struct watchdog_device *wdd)
return 0;
}
+static unsigned int aspeed_wdt_status(struct watchdog_device *wdd)
+{
+ struct aspeed_wdt *wdt = to_aspeed_wdt(wdd);
+
+ return readl(wdt->base + WDT_TIMEOUT_STATUS);
+}
Does the register report WDIOF_* status flags/bits as defined in the API ?
This seems more than unlikely.
Guenter
+
static int aspeed_wdt_set_timeout(struct watchdog_device *wdd,
unsigned int timeout)
{
@@ -171,6 +179,7 @@ static int aspeed_wdt_restart(struct watchdog_device *wdd,
.start = aspeed_wdt_start,
.stop = aspeed_wdt_stop,
.ping = aspeed_wdt_ping,
+ .status = aspeed_wdt_status,
.set_timeout = aspeed_wdt_set_timeout,
.restart = aspeed_wdt_restart,
.owner = THIS_MODULE,
--
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