On Fri, May 31, 2019 at 03:38:46PM +0800, Pi-Hsun Shih wrote: > Add a DT binding documentation for ChromeOS EC driver over rpmsg. > > Signed-off-by: Pi-Hsun Shih <pihsun@xxxxxxxxxxxx> > Acked-by: Rob Herring <robh@xxxxxxxxxx> Reviewed-by: Benson Leung <bleung@xxxxxxxxxxxx> > > --- > Changes from v8, v7, v6: > - No change. > > Changes from v5: > - New patch. > --- > Documentation/devicetree/bindings/mfd/cros-ec.txt | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/mfd/cros-ec.txt b/Documentation/devicetree/bindings/mfd/cros-ec.txt > index 6245c9b1a68b..4860eabd0f72 100644 > --- a/Documentation/devicetree/bindings/mfd/cros-ec.txt > +++ b/Documentation/devicetree/bindings/mfd/cros-ec.txt > @@ -3,7 +3,7 @@ ChromeOS Embedded Controller > Google's ChromeOS EC is a Cortex-M device which talks to the AP and > implements various function such as keyboard and battery charging. > > -The EC can be connect through various means (I2C, SPI, LPC) and the > +The EC can be connect through various means (I2C, SPI, LPC, RPMSG) and the > compatible string used depends on the interface. Each connection method has > its own driver which connects to the top level interface-agnostic EC driver. > Other Linux driver (such as cros-ec-keyb for the matrix keyboard) connect to > @@ -17,6 +17,9 @@ Required properties (SPI): > - compatible: "google,cros-ec-spi" > - reg: SPI chip select > > +Required properties (RPMSG): > +- compatible: "google,cros-ec-rpmsg" > + > Optional properties (SPI): > - google,cros-ec-spi-pre-delay: Some implementations of the EC need a little > time to wake up from sleep before they can receive SPI transfers at a high > -- > 2.22.0.rc1.257.g3120a18244-goog > -- Benson Leung Staff Software Engineer Chrome OS Kernel Google Inc. bleung@xxxxxxxxxx Chromium OS Project bleung@xxxxxxxxxxxx
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