From: shc_work@mail.ru (Alexander Shiyan)
To: linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH V3 3/3] power: reset: use syscon driver to parse reboot register from scu
Date: Fri, 17 Jan 2014 20:59:43 +0400 [thread overview]
Message-ID: <1389977983.940533034@f47.i.mail.ru> (raw)
In-Reply-To: <201401171752.47393.arnd@arndb.de>
???????, 17 ?????? 2014, 17:52 +01:00 ?? Arnd Bergmann <arnd@arndb.de>:
> On Wednesday 15 January 2014, Feng Kan wrote:
> > +static int __init xgene_reboot_init(void)
> > {
> > arm_pm_restart = xgene_restart;
> > return 0;
> > }
> > device_initcall(xgene_reboot_init);
>
> This won't work on a generic kernel, since you unconditionally set the
> pm_restart function to your own, which is broken for everything else.
>
> Please keep the platform_driver to attach to the reboot device
> as you had before. It might be good to turn this into a generic
> "syscon-reset" driver that gets both the register number and
> the contents to write from the device node.
I am not sure but think the new driver for SYSCON GPIOs can be
reused for such purpose:
http://www.spinics.net/lists/devicetree/msg18221.html
---
WARNING: multiple messages have this Message-ID (diff)
From: "Alexander Shiyan" <shc_work@mail.ru>
To: "Arnd Bergmann" <arnd@arndb.de>
Cc: "Feng Kan" <fkan@apm.com>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org
Subject: Re: [PATCH V3 3/3] power: reset: use syscon driver to parse reboot register from scu
Date: Fri, 17 Jan 2014 20:59:43 +0400 [thread overview]
Message-ID: <1389977983.940533034@f47.i.mail.ru> (raw)
In-Reply-To: <201401171752.47393.arnd@arndb.de>
Пятница, 17 января 2014, 17:52 +01:00 от Arnd Bergmann <arnd@arndb.de>:
> On Wednesday 15 January 2014, Feng Kan wrote:
> > +static int __init xgene_reboot_init(void)
> > {
> > arm_pm_restart = xgene_restart;
> > return 0;
> > }
> > device_initcall(xgene_reboot_init);
>
> This won't work on a generic kernel, since you unconditionally set the
> pm_restart function to your own, which is broken for everything else.
>
> Please keep the platform_driver to attach to the reboot device
> as you had before. It might be good to turn this into a generic
> "syscon-reset" driver that gets both the register number and
> the contents to write from the device node.
I am not sure but think the new driver for SYSCON GPIOs can be
reused for such purpose:
http://www.spinics.net/lists/devicetree/msg18221.html
---
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linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: "Alexander Shiyan" <shc_work@mail.ru>
To: "Arnd Bergmann" <arnd@arndb.de>
Cc: linux-arm-kernel@lists.infradead.org, "Feng Kan" <fkan@apm.com>,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
Subject: Re: [PATCH V3 3/3] power: reset: use syscon driver to parse reboot register from scu
Date: Fri, 17 Jan 2014 20:59:43 +0400 [thread overview]
Message-ID: <1389977983.940533034@f47.i.mail.ru> (raw)
In-Reply-To: <201401171752.47393.arnd@arndb.de>
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset=utf-8, Size: 1002 bytes --]
ПÑтница, 17 ÑÐ½Ð²Ð°Ñ€Ñ 2014, 17:52 +01:00 от Arnd Bergmann <arnd@arndb.de>:
> On Wednesday 15 January 2014, Feng Kan wrote:
> > +static int __init xgene_reboot_init(void)
> > {
> > arm_pm_restart = xgene_restart;
> > return 0;
> > }
> > device_initcall(xgene_reboot_init);
>
> This won't work on a generic kernel, since you unconditionally set the
> pm_restart function to your own, which is broken for everything else.
>
> Please keep the platform_driver to attach to the reboot device
> as you had before. It might be good to turn this into a generic
> "syscon-reset" driver that gets both the register number and
> the contents to write from the device node.
I am not sure but think the new driver for SYSCON GPIOs can be
reused for such purpose:
http://www.spinics.net/lists/devicetree/msg18221.html
---
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next prev parent reply other threads:[~2014-01-17 16:59 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-15 1:07 [PATCH V3 0/3] Enable X-Gene platform reboot driver Feng Kan
2014-01-15 1:07 ` Feng Kan
2014-01-15 1:07 ` [PATCH V3 1/3] arm64: add reboot dts entry for X-Gene platform Feng Kan
2014-01-15 1:07 ` Feng Kan
2014-01-15 1:07 ` [PATCH V3 2/3] arm64: Enable system reset via arch Kconfig for X-Gene system Feng Kan
2014-01-15 1:07 ` Feng Kan
2014-01-15 1:07 ` [PATCH V3 3/3] power: reset: use syscon driver to parse reboot register from scu Feng Kan
2014-01-15 1:07 ` Feng Kan
2014-01-17 16:52 ` Arnd Bergmann
2014-01-17 16:52 ` Arnd Bergmann
2014-01-17 16:59 ` Alexander Shiyan [this message]
2014-01-17 16:59 ` Alexander Shiyan
2014-01-17 16:59 ` Alexander Shiyan
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