Hi, On Mon, Aug 05, 2019 at 02:03:12PM +0200, Neil Armstrong wrote: > Now that we have the DT validation in place, let's convert the device tree > bindings for the Amlogic MHU controller over to a YAML schemas. > > Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx> > --- > .../mailbox/amlogic,meson-gxbb-mhu.yaml | 53 +++++++++++++++++++ > .../devicetree/bindings/mailbox/meson-mhu.txt | 34 ------------ > 2 files changed, 53 insertions(+), 34 deletions(-) > create mode 100644 Documentation/devicetree/bindings/mailbox/amlogic,meson-gxbb-mhu.yaml > delete mode 100644 Documentation/devicetree/bindings/mailbox/meson-mhu.txt > > diff --git a/Documentation/devicetree/bindings/mailbox/amlogic,meson-gxbb-mhu.yaml b/Documentation/devicetree/bindings/mailbox/amlogic,meson-gxbb-mhu.yaml > new file mode 100644 > index 000000000000..2536a0082cff > --- /dev/null > +++ b/Documentation/devicetree/bindings/mailbox/amlogic,meson-gxbb-mhu.yaml > @@ -0,0 +1,53 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +# Copyright 2019 BayLibre, SAS > +%YAML 1.2 > +--- > +$id: "http://devicetree.org/schemas/mailbox/amlogic,meson-gxbb-mhu.yaml#"; > +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; > + > +title: Amlogic Meson Message-Handling-Unit Controller > + > +maintainers: > + - Neil Armstrong <narmstrong@xxxxxxxxxxxx> > + > +description: | > + The Amlogic's Meson SoCs Message-Handling-Unit (MHU) is a mailbox controller > + that has 3 independent channels/links to communicate with remote processor(s). > + MHU links are hardwired on a platform. A link raises interrupt for any > + received data. However, there is no specified way of knowing if the sent > + data has been read by the remote. This driver assumes the sender polls > + STAT register and the remote clears it after having read the data. > + > +properties: > + compatible: > + enum: > + - amlogic,meson-gxbb-mhu > + > + reg: > + maxItems: 1 > + > + interrupts: > + minItems: 3 > + maxItems: 3 You don't need to specify both here. If one is missing, the tools will fill it automatically with the other's value. Maxime -- Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com
