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Re: [RESEND PATCH v16 4/4] ARM: dts: add the support power-domain node on RK3288 SoCs

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Kevin,

On Thu, Aug 27, 2015 at 5:24 PM, Kevin Hilman <khilman@kernel.org> wrote:
>> That is not really workable: the attach and detach happen in
>> probe/remove path; if you do not have driver for the device you will
>> miss the clocks for it.
>
> And in my proposal, I suggested that clocks without drivers are
> good candidates to list in the domain, with the caveat that the be
> called out (documented) as being device clocks that are missing a
> driver, so when a driver shows up they can be moved accordingly, and in
> a way that actually describes the hardware.

What happens if someone disables the driver using the CONFIG subsystem?

What happens if this is a device that someone has set to 'status =
"disabled";' in the device tree?

Even if the device is disabled in one of those two ways, we still need
the clocks to be turned on.  ...so if we turn on/off the VIO domain we
need to turn on the EDP clock even if there's no EDP in the current
board / config.  We might turn on/off VIO for one of the other devices
in the VIO domain for one of the other devices in VIO that we are
using.

-Doug
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[RESEND PATCH v16 0/4] ARM: rk3288: Add PM Domain support Caesar Wang <wxt@rock-chips.com> - 2015-08-25 09:30 +0200
  [RESEND PATCH v16 1/4] dt-bindings: add document of Rockchip power domain Caesar Wang <wxt@rock-chips.com> - 2015-08-25 09:30 +0200
  [RESEND PATCH v16 2/4] ARM: power-domain: rockchip: add all the domain type on RK3288 SoCs Caesar Wang <wxt@rock-chips.com> - 2015-08-25 09:30 +0200
  [RESEND PATCH v16 4/4] ARM: dts: add the support power-domain node on RK3288 SoCs Caesar Wang <wxt@rock-chips.com> - 2015-08-25 09:40 +0200
    Re: [RESEND PATCH v16 4/4] ARM: dts: add the support power-domain node on RK3288 SoCs Kevin Hilman <khilman@kernel.org> - 2015-08-25 23:10 +0200
      Re: [RESEND PATCH v16 4/4] ARM: dts: add the support power-domain  node on RK3288 SoCs Doug Anderson <dianders@chromium.org> - 2015-08-25 23:50 +0200
        Re: [RESEND PATCH v16 4/4] ARM: dts: add the support power-domain node on RK3288 SoCs Kevin Hilman <khilman@kernel.org> - 2015-08-26 00:50 +0200
          Re: [RESEND PATCH v16 4/4] ARM: dts: add the support power-domain  node on RK3288 SoCs Dmitry Torokhov <dmitry.torokhov@gmail.com> - 2015-08-26 01:50 +0200
            Re: [RESEND PATCH v16 4/4] ARM: dts: add the support power-domain node on RK3288 SoCs Kevin Hilman <khilman@kernel.org> - 2015-08-28 02:30 +0200
              Re: [RESEND PATCH v16 4/4] ARM: dts: add the support power-domain  node on RK3288 SoCs Doug Anderson <dianders@chromium.org> - 2015-08-28 04:10 +0200
                Re: [RESEND PATCH v16 4/4] ARM: dts: add the support power-domain node on  RK3288 SoCs Michael Turquette <mturquette@linaro.org> - 2015-08-28 22:10 +0200
                Re: [RESEND PATCH v16 4/4] ARM: dts: add the support power-domain  node on RK3288 SoCs Doug Anderson <dianders@chromium.org> - 2015-08-28 23:10 +0200
                Re: [RESEND PATCH v16 4/4] ARM: dts: add the support power-domain node on  RK3288 SoCs Michael Turquette <mturquette@baylibre.com> - 2015-08-29 01:00 +0200
                Re: [RESEND PATCH v16 4/4] ARM: dts: add the support power-domain node on RK3288 SoCs Kevin Hilman <khilman@kernel.org> - 2015-08-28 23:30 +0200
          Re: [RESEND PATCH v16 4/4] ARM: dts: add the support power-domain  node on RK3288 SoCs Doug Anderson <dianders@chromium.org> - 2015-08-26 02:00 +0200
          Re: [RESEND PATCH v16 4/4] ARM: dts: add the support power-domain  node on RK3288 SoCs Caesar Wang <wxt@rock-chips.com> - 2015-08-26 11:30 +0200

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