On Wed, Mar 05, 2025 at 04:20:40PM +0800, Jjian Zhou wrote: > 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: | Don't need '|' if no formatting > + 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 >
