watchdog: imx2_wdt: set watchdog parent device
If on watchdog device registration a parent device is not set, then
the registered watchdog is considered to be a virtual device:
/sys/devices/virtual/watchdog/watchdog0
/sys/devices/virtual/watchdog/watchdog1
Setting a correct reference to a platform device allows to
distinguish multiple instances of iMX2+ hardware watchdogs:
/sys/devices/soc0/soc/2000000.aips-bus/20bc000.wdog/watchdog/watchdog0
/sys/devices/soc0/soc/2000000.aips-bus/20c0000.wdog/watchdog/watchdog1
Signed-off-by: Vladimir Zapolskiy <[email protected]>
Reviewed-by: Guenter Roeck <[email protected]>
Signed-off-by: Wim Van Sebroeck <[email protected]>
diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c
index 7cee402..2acdd17 100644
--- a/drivers/watchdog/imx2_wdt.c
+++ b/drivers/watchdog/imx2_wdt.c
@@ -258,6 +258,7 @@
wdog->ops = &imx2_wdt_ops;
wdog->min_timeout = 1;
wdog->max_timeout = IMX2_WDT_MAX_TIME;
+ wdog->parent = &pdev->dev;
clk_prepare_enable(wdev->clk);
