linux-kernel - Re: [PATCH V2] Watchdog: Fix parent of watchdog

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Message-ID: <CACRpkdbT0Ew_LXys++EDykM-gp08dxKQ4HYp0CfAmk7EoCET9A@mail.gmail.com>
Date:	Wed, 26 Aug 2015 13:38:19 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Pratyush Anand <panand@...hat.com>
Cc:	Guenter Roeck <linux@...ck-us.net>, linux-watchdog@...r.kernel.org,
	Alexandre Courbot <gnurou@...il.com>,
	Andreas Werner <andreas.werner@....de>,
	Barry Song <baohua@...nel.org>,
	Baruch Siach <baruch@...s.co.il>,
	Johannes Thumshirn <morbidrsa@...il.com>,
	"open list:ARM/STI ARCHITECTURE" <kernel@...inux.com>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Kukjin Kim <kgene@...nel.org>, Lee Jones <lee@...nel.org>,
	"moderated list:ARM/U300 MACHINE SUPPORT" 
	<linux-arm-kernel@...ts.infradead.org>,
	"open list:INTEL MANAGEMENT ENGINE (mei)" 
	<linux-kernel@...r.kernel.org>,
	"moderated list:BROADCOM BCM2835 ARM ARCHITECTURE" 
	<linux-rpi-kernel@...ts.infradead.org>,
	"moderated list:ARM/SAMSUNG EXYNOS ARM ARCHITECTURES" 
	<linux-samsung-soc@...r.kernel.org>,
	"open list:TEGRA ARCHITECTURE SUPPORT" <linux-tegra@...r.kernel.org>,
	Maxime Coquelin <maxime.coquelin@...com>,
	"open list:WOLFSON MICROELECTRONICS DRIVERS" 
	<patches@...nsource.wolfsonmicro.com>,
	Patrice Chotard <patrice.chotard@...com>,
	Srinivas Kandagatla <srinivas.kandagatla@...il.com>,
	Stephen Warren <swarren@...dotorg.org>,
	Support Opensource <support.opensource@...semi.com>,
	Thierry Reding <thierry.reding@...il.com>,
	Tomas Winkler <tomas.winkler@...el.com>,
	Wim Van Sebroeck <wim@...ana.be>
Subject: Re: [PATCH V2] Watchdog: Fix parent of watchdog_devices

On Tue, Aug 18, 2015 at 6:34 PM, Pratyush Anand <panand@...hat.com> 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>

Acked-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij
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