diff options
| author | Neil Armstrong <narmstrong@baylibre.com> | 2019-08-08 10:51:31 +0200 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2019-08-13 16:11:00 -0600 |
| commit | 8d63f97113a7e474b4fbbdc6ccde1091da167211 (patch) | |
| tree | db5a3ba81f825072a5b15eefc896fc325858a461 /Documentation/devicetree/bindings/mailbox/amlogic,meson-gxbb-mhu.yaml | |
| parent | cdea0121ae803237ce9b09779194f82ca1467994 (diff) | |
dt-bindings: mailbox: meson-mhu: convert to yaml
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.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/mailbox/amlogic,meson-gxbb-mhu.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/mailbox/amlogic,meson-gxbb-mhu.yaml | 52 |
1 files changed, 52 insertions, 0 deletions
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..319280563648 --- /dev/null +++ b/Documentation/devicetree/bindings/mailbox/amlogic,meson-gxbb-mhu.yaml @@ -0,0 +1,52 @@ +# 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@baylibre.com> + +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 + description: + Contains the interrupt information corresponding to each of the 3 links + of MHU. + + "#mbox-cells": + const: 1 + +required: + - compatible + - reg + - interrupts + - "#mbox-cells" + +examples: + - | + mailbox@c883c404 { + compatible = "amlogic,meson-gxbb-mhu"; + reg = <0xc883c404 0x4c>; + interrupts = <208>, <209>, <210>; + #mbox-cells = <1>; + }; + |