Messages in this thread |  | | From | Eric Anholt <> | Subject | Re: [PATCH v3 1/7] dt/bindings: Add binding for the Raspberry Pi clock provider | Date | Tue, 07 Jul 2015 13:13:48 -0700 |
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Lee Jones <lee@kernel.org> writes:
> If I were the Clock Maintainer, I would have probably missed this > patch. You _must_ intimate which subsystem you are submitting to. > >> The hardware clocks are not controllable by the ARM, so we have to >> make requests to the firmware to do so from the VPU side. This will >> let us replace fixed clocks in our DT with actual clock control (and >> correct frequency information). >> >> v2: Include the dt-bindings header in this commit instead of the next >> one. Make the clock indices match the firmware clock IDs. Rename >> the binding's compat string. Move the firmware phandle to be >> under a vendor-specific namespace. >> >> Signed-off-by: Eric Anholt <eric@anholt.net> >> --- >> .../clock/raspberrypi,bcm2835-firmware-clocks.txt | 25 ++++++++++++++++++++++ >> include/dt-bindings/clk/raspberrypi.h | 23 ++++++++++++++++++++ >> 2 files changed, 48 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/clock/raspberrypi,bcm2835-firmware-clocks.txt >> create mode 100644 include/dt-bindings/clk/raspberrypi.h >> >> diff --git a/Documentation/devicetree/bindings/clock/raspberrypi,bcm2835-firmware-clocks.txt b/Documentation/devicetree/bindings/clock/raspberrypi,bcm2835-firmware-clocks.txt >> new file mode 100644 >> index 0000000..0972602 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/clock/raspberrypi,bcm2835-firmware-clocks.txt >> @@ -0,0 +1,25 @@ >> +Raspberry Pi firmware clock provider. >> + >> +The Raspberry Pi architecture doesn't provide direct access to the >> +CLOCKMAN peripheral from the ARM side, so Linux has to make requests >> +to the VPU firmware to program them. >> + >> +This binding uses the common clock binding: >> +Documentation/devicetree/bindings/clock/clock-bindings.txt >> + >> +Required properties: >> +- compatible: Should be "raspberrypi,bcm2835-firmware-clocks" >> + >> +- #clock-cells: Shall have value <1>. The permitted clock-specifier >> + values can be found in >> + include/dt-bindings/clk/raspberrypi.h. >> + >> +- raspberrypi,firmware: Phandle to the firmware driver node. > > I think 'firmware' is a candidate for a generic phandle name.
Stephen Warren asked in the last version that I change it from "firmware" to "raspberrypi,firmware", which made sense to me since we're not some core infrastructure using these references. Which should it be? [unhandled content-type:application/pgp-signature] |  |