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Message-ID: <BN3PR0101MB1057C3FE09F00EEC55D2C9B1D0780@BN3PR0101MB1057.prod.exchangelabs.com>
Date:	Tue, 18 Aug 2015 16:45:44 +0000
From:	Hartley Sweeten <HartleyS@...ionengravers.com>
To:	Pratyush Anand <panand@...hat.com>,
	"linux@...ck-us.net" <linux@...ck-us.net>
CC:	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	"open list:WOLFSON MICROELECTRONICS DRIVERS" 
	<patches@...nsource.wolfsonmicro.com>,
	"open list:ARM/STI ARCHITECTURE" <kernel@...inux.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Baruch Siach <baruch@...s.co.il>,
	"open list:INTEL MANAGEMENT ENGINE mei" 
	<linux-kernel@...r.kernel.org>, "Wim Van Sebroeck" <wim@...ana.be>,
	Thierry Reding <thierry.reding@...il.com>,
	Alexandre Courbot <gnurou@...il.com>,
	"moderated list:ARM/SAMSUNG EXYNOS ARM ARCHITECTURES" 
	<linux-samsung-soc@...r.kernel.org>, Lee Jones <lee@...nel.org>,
	Kukjin Kim <kgene@...nel.org>,
	Tomas Winkler <tomas.winkler@...el.com>,
	"linux-watchdog@...r.kernel.org" <linux-watchdog@...r.kernel.org>,
	Stephen Warren <swarren@...dotorg.org>,
	"moderated list:BROADCOM BCM2835 ARM ARCHITECTURE" 
	<linux-rpi-kernel@...ts.infradead.org>,
	"open list:TEGRA ARCHITECTURE SUPPORT" <linux-tegra@...r.kernel.org>,
	"moderated list:ARM/U300 MACHINE SUPPORT" 
	<linux-arm-kernel@...ts.infradead.org>,
	Maxime Coquelin <maxime.coquelin@...com>,
	Barry Song <baohua@...nel.org>,
	Johannes Thumshirn <morbidrsa@...il.com>,
	Support Opensource <support.opensource@...semi.com>,
	Andreas Werner <andreas.werner@....de>,
	Srinivas Kandagatla <srinivas.kandagatla@...il.com>,
	Patrice Chotard <patrice.chotard@...com>
Subject: RE: [PATCH V2] Watchdog: Fix parent of watchdog_devices

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 <panand@...hat.com>
> ---
[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 <hsweeten@...ionengravers.com>
Acked-by: H Hartley Sweeten <hsweeten@...ionengravers.com>

Thanks,
Hartley

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