[V2] Watchdog: Fix parent of watchdog_devices

Commit Message

Hartley Sweeten Aug. 18, 2015, 4:45 p.m. UTC

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 <[e-mail]>
> ---
[snip]

drivers/watchdog/ep93xx_wdt.c       | 1 +

[snip]

For ep93xx_wdt.c, use whichever tag you prefer:

Reviewed-by: H Hartley Sweeten <[e-mail]>
Acked-by: H Hartley Sweeten <[e-mail]>

Thanks,
Hartley

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Patch

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);