On Tuesday, August 18, 2015 9:34 AM, Pratyush Anand wrote:
>
> /sys/class/watchdog/watchdogn/device/modalias can help to identify the
> driver/module for a given watchdog node. However, many wdt devices does not
> set
> its parent and so, we do not see an entry for device in sysfs for such
> devices.
>
> This patch fixes parent of watchdog_device so that
> /sys/class/watchdog/watchdogn/device is populated.
>
> Exceptions: booke, diag288, mpc8xxx, octeon, softdog and w83627hf -- They do
> not
> have any parent. Not sure, how we can we identify driver for these devices.
>
> Signed-off-by: Pratyush Anand <[email protected]>
> ---
[snip]
drivers/watchdog/ep93xx_wdt.c | 1 +
[snip]
diff --git a/drivers/watchdog/ep93xx_wdt.c b/drivers/watchdog/ep93xx_wdt.c
index 7a2cc7191c58..0a4d7cc05d54 100644
--- a/drivers/watchdog/ep93xx_wdt.c
+++ b/drivers/watchdog/ep93xx_wdt.c
@@ -132,6 +132,7 @@ static int ep93xx_wdt_probe(struct platform_device *pdev)
val = readl(mmio_base + EP93XX_WATCHDOG);
ep93xx_wdt_wdd.bootstatus = (val & 0x01) ? WDIOF_CARDRESET : 0;
ep93xx_wdt_wdd.timeout = timeout;
+ ep93xx_wdt_wdd.parent = &pdev->dev;
watchdog_set_nowayout(&ep93xx_wdt_wdd, nowayout);
For ep93xx_wdt.c, use whichever tag you prefer:
Reviewed-by: H Hartley Sweeten <[email protected]>
Acked-by: H Hartley Sweeten <[email protected]>
Thanks,
Hartley
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