Hi Rob, On Mon, Jun 06, 2016 at 08:08:18AM -0500, Rob Herring wrote: > On Wed, Jun 01, 2016 at 07:54:27PM +0200, Maxime Ripard wrote: > > Introduce the device tree binding for the I2S controller found in the > > Allwinner A10 and later SoCs. > > > > Signed-off-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx> > > --- > > .../devicetree/bindings/sound/sun4i-i2s.txt | 33 ++++++++++++++++++++++ > > 1 file changed, 33 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/sound/sun4i-i2s.txt > > > > diff --git a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt > > new file mode 100644 > > index 000000000000..365ca4eede5f > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt > > @@ -0,0 +1,33 @@ > > +* Allwinner A10 I2S controller > > + > > +The I2S bus (Inter-IC sound bus) is a serial link for digital > > +audio data transfer between devices in the system. > > + > > +Required properties: > > + > > +- compatible: should be one of the followings > > + - "allwinner,sun4i-a10-i2s" > > +- reg: physical base address of the controller and length of memory mapped > > + region. > > +- interrupts: should contain the I2S interrupt. > > +- dmas: DMA specifiers for tx and rx dma. See the DMA client binding, > > + Documentation/devicetree/bindings/dma/dma.txt > > +- dma-names: should include "tx" and "rx". > > +- clocks: a list of phandle + clock-specifer pairs, one for each entry in clock-names. > > +- clock-names: should contain followings: > > + - "apb" : clock for the I2S bus interface > > + - "mod" : module clock for the I2S controller > > + > > +Example: > > + > > +i2s0: i2s@01c22400 { > > + #sound-dai-cells = <0>; > > This is missing from the property list. Indeed, I'll add it. Thanks! Maxime -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com
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