Re: [RFC][PATCH] misc: Introduce reboot_reason driver

From	Sascha Hauer <s.hauer@pengutronix.de>
Newsgroups	linux.kernel
Subject	Re: [RFC][PATCH] misc: Introduce reboot_reason driver
Date	2015-12-09 10:10 +0100
Message-ID	<qDIV3-6nQ-11@gated-at.bofh.it> (permalink)
References	<qDxZD-7Cj-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Hi John,

On Tue, Dec 08, 2015 at 01:29:22PM -0800, John Stultz wrote:
> This patch adds a basic driver to allow for commands like
> "reboot bootloader" and "reboot recovery" to communicate this
> reboot-reason to the bootloader.
> 
> This is commonly done on Android devices, in order to reboot
> the device into fastboot or recovery mode. It also supports
> custom OEM specific commands, via "reboot oem-<value>".
> 
> This driver pulls the phys memory address from DT as well as
> the magic reason values that are written to the address for
> each mode.
> 
> For an example, this patch also adds the DT support for
> the nexus7 device via its dts (which is not yet upstream).
> 
> Thoughts and feedback would be appreciated!

I wonder if 'reason' is the correct word. This driver says nothing about
the reason why we reboot, but more what we should do next. Maybe
something like purpose, scope or intention is more appropriate?

Sascha

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[RFC][PATCH] misc: Introduce reboot_reason driver John Stultz <john.stultz@linaro.org> - 2015-12-08 22:30 +0100
  Re: [RFC][PATCH] misc: Introduce reboot_reason driver Arnd Bergmann <arnd@arndb.de> - 2015-12-08 23:00 +0100
    Re: [RFC][PATCH] misc: Introduce reboot_reason driver Bjorn Andersson <bjorn.andersson@sonymobile.com> - 2015-12-08 23:20 +0100
      Re: [RFC][PATCH] misc: Introduce reboot_reason driver Rob Herring <robh+dt@kernel.org> - 2015-12-08 23:50 +0100
    Re: [RFC][PATCH] misc: Introduce reboot_reason driver John Stultz <john.stultz@linaro.org> - 2015-12-09 01:20 +0100
      Re: [RFC][PATCH] misc: Introduce reboot_reason driver Sascha Hauer <s.hauer@pengutronix.de> - 2015-12-09 10:00 +0100
        Re: [RFC][PATCH] misc: Introduce reboot_reason driver John Stultz <john.stultz@linaro.org> - 2015-12-09 22:50 +0100
  Re: [RFC][PATCH] misc: Introduce reboot_reason driver Bjorn Andersson <bjorn.andersson@sonymobile.com> - 2015-12-08 23:10 +0100
    Re: [RFC][PATCH] misc: Introduce reboot_reason driver John Stultz <john.stultz@linaro.org> - 2015-12-09 01:30 +0100
      Re: [RFC][PATCH] misc: Introduce reboot_reason driver Arnd Bergmann <arnd@arndb.de> - 2015-12-09 11:10 +0100
        Re: [RFC][PATCH] misc: Introduce reboot_reason driver John Stultz <john.stultz@linaro.org> - 2015-12-10 02:30 +0100
          Re: [RFC][PATCH] misc: Introduce reboot_reason driver Arnd Bergmann <arnd@arndb.de> - 2015-12-10 16:00 +0100
            Re: [RFC][PATCH] misc: Introduce reboot_reason driver John Stultz <john.stultz@linaro.org> - 2015-12-10 20:00 +0100
              Re: [RFC][PATCH] misc: Introduce reboot_reason driver Rob Herring <robh+dt@kernel.org> - 2015-12-10 21:30 +0100
                Re: [RFC][PATCH] misc: Introduce reboot_reason driver John Stultz <john.stultz@linaro.org> - 2015-12-10 22:50 +0100
                Re: [RFC][PATCH] misc: Introduce reboot_reason driver Arnd Bergmann <arnd@arndb.de> - 2015-12-10 23:20 +0100
    Re: [RFC][PATCH] misc: Introduce reboot_reason driver John Stultz <john.stultz@linaro.org> - 2015-12-10 02:40 +0100
      Re: [RFC][PATCH] misc: Introduce reboot_reason driver Arnd Bergmann <arnd@arndb.de> - 2015-12-10 10:10 +0100
        Re: [RFC][PATCH] misc: Introduce reboot_reason driver Tomas Winkler <tomasw@gmail.com> - 2015-12-10 10:30 +0100
          Re: [RFC][PATCH] misc: Introduce reboot_reason driver John Stultz <john.stultz@linaro.org> - 2015-12-10 20:10 +0100
            Re: [RFC][PATCH] misc: Introduce reboot_reason driver One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2015-12-10 21:00 +0100
              Re: [RFC][PATCH] misc: Introduce reboot_reason driver John Stultz <john.stultz@linaro.org> - 2015-12-10 21:10 +0100
  Re: [RFC][PATCH] misc: Introduce reboot_reason driver Rob Herring <robh+dt@kernel.org> - 2015-12-08 23:30 +0100
    Re: [RFC][PATCH] misc: Introduce reboot_reason driver John Stultz <john.stultz@linaro.org> - 2015-12-09 01:40 +0100
  Re: [RFC][PATCH] misc: Introduce reboot_reason driver Sascha Hauer <s.hauer@pengutronix.de> - 2015-12-09 10:00 +0100
  Re: [RFC][PATCH] misc: Introduce reboot_reason driver Sascha Hauer <s.hauer@pengutronix.de> - 2015-12-09 10:10 +0100

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