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Re: [PATCH v1 0/6] misc: add reboot mode driver

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Am Montag, 28. Dezember 2015, 16:28:55 schrieb Arnd Bergmann:
> On Wednesday 23 December 2015 17:31:45 Andy Yan wrote:
> > +        { .compatible = "rockchip,reboot-mode-nvram",
> > +                .data = (void *)&reboot-mode-nvram },
> > +        {},
> > +};
> 
> nvram is a complex topic by itself, because there are so many ways to do it.
> I think what you are referring to here is a battery-backed memory that uses
> one or more bytes at a fixed offset to store a particular piece of
> information, as the drivers/char/nvram.c driver does. Maybe we should put
> the reboot mode into that driver then?
> 
> There are other nvram drivers at various places in the kernel, and each may
> be slightly different, or completely different, like the EFIVARs driver on
> UEFI firmware or the key/value store on Open Firmware, these probably need
> their own methods and not share the generic driver.

actually we now have drivers/nvmem/* that does that byte-wise addressing for 
eeproms, efuses, etc in a generic way.
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[PATCH v1 0/6] misc: add reboot mode driver Andy Yan <andy.yan@rock-chips.com> - 2015-12-22 10:10 +0100
  [PATCH v1 1/6] dt-bindings: misc: add document for reboot-mode driver Andy Yan <andy.yan@rock-chips.com> - 2015-12-22 10:10 +0100
    Re: [PATCH v1 1/6] dt-bindings: misc: add document for reboot-mode  driver Rob Herring <robh@kernel.org> - 2015-12-23 01:40 +0100
      Re: [PATCH v1 1/6] dt-bindings: misc: add document for reboot-mode driver Moritz Fischer <moritz.fischer@ettus.com> - 2015-12-23 09:40 +0100
      Re: [PATCH v1 1/6] dt-bindings: misc: add document for reboot-mode  driver Andy Yan <andy.yan@rock-chips.com> - 2015-12-23 10:10 +0100
  [PATCH v1 4/6] soc: rockchip: add reboot mode driver Andy Yan <andy.yan@rock-chips.com> - 2015-12-22 10:20 +0100
  [PATCH v1 3/6] misc: add reboot mode driver Andy Yan <andy.yan@rock-chips.com> - 2015-12-22 10:20 +0100
  [PATCH v1 5/6] ARM: dts: rockchip: add reboot-mode node Andy Yan <andy.yan@rock-chips.com> - 2015-12-22 10:20 +0100
    Re: [PATCH v1 5/6] ARM: dts: rockchip: add reboot-mode node Heiko Stübner <heiko@sntech.de> - 2015-12-22 12:30 +0100
  [PATCH v1 2/6] dt-bindings: soc: add document for rockchip reboot-mode driver Andy Yan <andy.yan@rock-chips.com> - 2015-12-22 10:20 +0100
  [PATCH v1 6/6] ARM64: dts: rockchip: add reboot-mode node Andy Yan <andy.yan@rock-chips.com> - 2015-12-22 10:30 +0100
  Re: [PATCH v1 0/6] misc: add reboot mode driver Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2015-12-22 17:50 +0100
    Re: [PATCH v1 0/6] misc: add reboot mode driver Andy Yan <andy.yan@rock-chips.com> - 2015-12-23 10:40 +0100
      Re: [PATCH v1 0/6] misc: add reboot mode driver Arnd Bergmann <arnd@arndb.de> - 2015-12-28 16:40 +0100
        Re: [PATCH v1 0/6] misc: add reboot mode driver Heiko Stübner <heiko@sntech.de> - 2015-12-28 17:00 +0100
          Re: [PATCH v1 0/6] misc: add reboot mode driver Arnd Bergmann <arnd@arndb.de> - 2015-12-28 17:20 +0100
        Re: [PATCH v1 0/6] misc: add reboot mode driver Andy Yan <andy.yan@rock-chips.com> - 2015-12-29 09:00 +0100

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