This patch adds document for mediatek vcp mbox. Signed-off-by: Jjian Zhou <jjian.zhou@xxxxxxxxxxxx> --- .../bindings/mailbox/mtk,vcp-mbox.yaml | 49 +++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 Documentation/devicetree/bindings/mailbox/mtk,vcp-mbox.yaml diff --git a/Documentation/devicetree/bindings/mailbox/mtk,vcp-mbox.yaml b/Documentation/devicetree/bindings/mailbox/mtk,vcp-mbox.yaml new file mode 100644 index 000000000000..d5afe295af14 --- /dev/null +++ b/Documentation/devicetree/bindings/mailbox/mtk,vcp-mbox.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mailbox/mtk,vcp-mbox.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek Video Companion Processor (VCP) mailbox + +maintainers: + - Jjian Zhou <Jjian.Zhou@xxxxxxxxxxxx> + +description: | + The MTK VCP mailbox enables the SoC to communicate with the VCP by passing + messages through 64 32-bit wide registers. It has 32 interrupt vectors in + either direction for signalling purposes. + +properties: + compatible: + enum: + - mediatek,mt8196-vcp-mbox + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + "#mbox-cells": + const: 0 + +required: + - compatible + - reg + - interrupts + - "#mbox-cells" + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/interrupt-controller/irq.h> + + vcp_mailbox0: mailbox@31b80000 { + compatible = "mediatek,mt8196-vcp-mbox"; + reg = <0x31b80000 0x1000>; + interrupts = <GIC_SPI 789 IRQ_TYPE_LEVEL_HIGH 0>; + #mbox-cells = <0>; + }; -- 2.45.2
