On Fri, Nov 20, 2015 at 05:17:15PM -0700, Joshua Henderson wrote: > From: Purna Chandra Mandal <purna.mandal@xxxxxxxxxxxxx> > > Document the devicetree bindings for the clock driver found on Microchip > PIC32 class devices. > > Signed-off-by: Purna Chandra Mandal <purna.mandal@xxxxxxxxxxxxx> > Signed-off-by: Joshua Henderson <joshua.henderson@xxxxxxxxxxxxx> > --- > .../devicetree/bindings/clock/microchip,pic32.txt | 263 ++++++++++++++++++++ > 1 file changed, 263 insertions(+) > create mode 100644 Documentation/devicetree/bindings/clock/microchip,pic32.txt > > diff --git a/Documentation/devicetree/bindings/clock/microchip,pic32.txt b/Documentation/devicetree/bindings/clock/microchip,pic32.txt > new file mode 100644 > index 0000000..4cef72d > --- /dev/null > +++ b/Documentation/devicetree/bindings/clock/microchip,pic32.txt > @@ -0,0 +1,263 @@ > +Binding for a Clock hardware block found on > +certain Microchip PIC32 MCU devices. > + > +Microchip SoC clocks-node consists of few oscillators, PLL, multiplexer > +and few divider nodes. [...] > +Required properties: > +- compatible : should have "microchip,pic32-clk". > +- reg : A Base address and length of the register set. > +- interrupts : source of interrupt. > + > +Optional properties (for subnodes): > +- #clock-cells: From common clock binding, should be 0. > + > +- microchip,clock-indices: in multiplexer node clock sources always aren't linear > + and contiguous. This property helps define clock-sources with respect to > + the mux clock node. > + > +- microchip,ignore-unused : ignore gate request even if the gated clock is unused. There is some discussion about this upstream with "critical-clocks" binding. Can you use and wait for that? > +- microchip,status-bit-mask: bitmask for status check. This will be used to confirm > + particular operation by clock sub-node is completed. It is dependent sub-node. > +- microchip,bit-mask: enable mask, similar to microchip,status-bit-mask. We've generally decided not to describe clocks at this level of detail in DT. It's fine though for simple clock trees. This one seems to be borderline IMO. > +- microchip,slew-step: enable frequency slewing(stepping) during rate change; > + applicable only to sys-clock subnode.
