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From: Qiang Zhao <qiang.zhao@nxp.com>
To: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: "Wim Van Sebroeck" <wim@linux-watchdog.org>,
	"Guenter Roeck" <linux@roeck-us.net>,
	"linux-watchdog@vger.kernel.org" <linux-watchdog@vger.kernel.org>,
	"a.zummo@towertech.it" <a.zummo@towertech.it>,
	"robh+dt@kernel.org" <robh+dt@kernel.org>,
	"linux-rtc@vger.kernel.org" <linux-rtc@vger.kernel.org>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
Subject: RE: [Patch v2 1/3] dt-bindings: rtc: pcf2127: Add bindings for nxp,pcf2127
Date: Thu, 24 Sep 2020 03:20:33 +0000	[thread overview]
Message-ID: <DB8PR04MB67635518BE38EEF5292C8D0991390@DB8PR04MB6763.eurprd04.prod.outlook.com> (raw)
In-Reply-To: <20200923094449.GP9675@piout.net>

On 21/09/2020 13:48:19+0800, Qiang Zhao wrote:

> -----Original Message-----
> From: Alexandre Belloni <alexandre.belloni@bootlin.com>
> Sent: 2020年9月23日 17:45
> To: Qiang Zhao <qiang.zhao@nxp.com>
> Cc: Wim Van Sebroeck <wim@linux-watchdog.org>; Guenter Roeck
> <linux@roeck-us.net>; linux-watchdog@vger.kernel.org;
> a.zummo@towertech.it; robh+dt@kernel.org; linux-rtc@vger.kernel.org;
> devicetree@vger.kernel.org; linux-kernel@vger.kernel.org; Uwe Kleine-König
> <u.kleine-koenig@pengutronix.de>
> Subject: Re: [Patch v2 1/3] dt-bindings: rtc: pcf2127: Add bindings for
> nxp,pcf2127
> 
> Hi,
> 
> You forgot to copy the watchdog maintainers, I think such a property should be
> discussed with them.
> 
> Note that I'm still convinced this is not a complete solution, see:
> https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.kern
> el.org%2Flinux-rtc%2F20200716181816.GF3428%40piout.net%2F&amp;data=
> 02%7C01%7Cqiang.zhao%40nxp.com%7Cb71f79a044b0493d6d4f08d85fa551c
> b%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C1%7C637364510931174
> 355&amp;sdata=%2BOxrzB8RIuxM9Let5slhfCVmMm6PMNoERDeHC9%2Fdxng
> %3D&amp;reserved=0
> 

Yes, you are right, There is not a fundamental solution.
However it somewhat avoid this situation at least.

And if without this issue, 
is it correct to register a rtc device as watchdog no matter it is used as watchdog on the board? 
Every time Linux are booted up, watchdog device should be configured to the right one manually.
So the patch are useful, even though it is not for the issue.

What should we do to really resolve this issue?

Best Regards
Qiang Zhao

  reply	other threads:[~2020-09-24  3:20 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-21  5:48 [Patch v2 1/3] dt-bindings: rtc: pcf2127: Add bindings for nxp,pcf2127 Qiang Zhao
2020-09-21  5:48 ` [Patch v2 2/3] rtc: pcf2127: add "no-watchdog" property Qiang Zhao
2020-09-21  5:48 ` [Patch v2 3/3] arm64: dts: lx2160a: Add "no-watchdog" property to pcf2127 Qiang Zhao
2020-09-23  9:44 ` [Patch v2 1/3] dt-bindings: rtc: pcf2127: Add bindings for nxp,pcf2127 Alexandre Belloni
2020-09-24  3:20   ` Qiang Zhao [this message]
2020-09-24  7:04     ` Uwe Kleine-König
2020-09-24  7:23       ` Qiang Zhao
2020-09-24  7:47         ` Alexandre Belloni
2020-09-24 10:52           ` [PATCH 0/2] rtc: pcf2127: only use watchdog when explicitly available Uwe Kleine-König
2020-09-24 10:52             ` [PATCH 1/2] rtc: pcf2127: move watchdog initialisation to a separate function Uwe Kleine-König
2020-09-27  7:50               ` Bruno Thomsen
2020-09-24 10:52             ` [PATCH 2/2] [RFC] rtc: pcf2127: only use watchdog when explicitly available Uwe Kleine-König
2020-09-27  8:09               ` Bruno Thomsen
2020-09-27 15:54                 ` Guenter Roeck
2020-09-28  8:43                   ` Uwe Kleine-König
2020-09-28 16:26                     ` Guenter Roeck
2020-10-26  7:23             ` [PATCH 0/2] " Qiang Zhao
2020-10-26 20:48               ` Alexandre Belloni
2020-10-26 21:29                 ` Guenter Roeck
2020-11-30  9:51             ` Rasmus Villemoes
2020-12-04  9:27               ` Alexandre Belloni
2020-12-11 21:56                 ` [PATCH v2 0/3] add reset-source RTC binding, update pcf2127 driver Rasmus Villemoes
2020-12-11 21:56                   ` [PATCH v2 1/3] dt-bindings: rtc: add reset-source property Rasmus Villemoes
2020-12-11 22:30                     ` Rob Herring
2020-12-11 23:10                       ` Rasmus Villemoes
2020-12-17 16:51                         ` Rob Herring
2020-12-17 18:12                           ` Uwe Kleine-König
2020-12-17 18:23                             ` Rasmus Villemoes
2020-12-17 19:02                             ` Rob Herring
2020-12-17 20:28                               ` Uwe Kleine-König
2020-12-12  9:25                     ` Uwe Kleine-König
2020-12-11 21:56                   ` [PATCH v2 2/3] rtc: pcf2127: move watchdog initialisation to a separate function Rasmus Villemoes
2020-12-11 21:56                   ` [PATCH v2 3/3] rtc: pcf2127: only use watchdog when explicitly available Rasmus Villemoes
2020-12-18 10:10                   ` [PATCH v3 0/2] add reset-source RTC binding, update pcf2127 driver Rasmus Villemoes
2020-12-18 10:10                     ` [PATCH v3 1/2] dt-bindings: rtc: add reset-source property Rasmus Villemoes
2020-12-18 21:19                       ` Rob Herring
2020-12-18 10:10                     ` [PATCH v3 2/2] rtc: pcf2127: only use watchdog when explicitly available Rasmus Villemoes
2020-12-19  0:58                     ` [PATCH v3 0/2] add reset-source RTC binding, update pcf2127 driver Alexandre Belloni
2020-09-24 16:59           ` [Patch v2 1/3] dt-bindings: rtc: pcf2127: Add bindings for nxp,pcf2127 Bruno Thomsen

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