diff mbox series

[v18,1/2] dt-bindings: mailbox: mtk, adsp-mbox: add mtk adsp-mbox document

Message ID 20220225132427.29152-2-allen-kh.cheng@mediatek.com
State New
Headers show
Series mtk: add ADSP mailbox controller for MT8195 | expand

Commit Message

Allen-KH Cheng Feb. 25, 2022, 1:24 p.m. UTC 
From: Allen-KH Cheng <Allen-KH.Cheng@mediatek.com>

This patch adds document for mediatek adsp mbox

Signed-off-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 .../bindings/mailbox/mtk,adsp-mbox.yaml       | 50 +++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mailbox/mtk,adsp-mbox.yaml

Comments

Rob Herring March 4, 2022, 11:06 p.m. UTC | #1 
On Fri, 25 Feb 2022 21:24:26 +0800, Allen-KH Cheng wrote:
> From: Allen-KH Cheng <Allen-KH.Cheng@mediatek.com>
> 
> This patch adds document for mediatek adsp mbox
> 
> Signed-off-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> ---
>  .../bindings/mailbox/mtk,adsp-mbox.yaml       | 50 +++++++++++++++++++
>  1 file changed, 50 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mailbox/mtk,adsp-mbox.yaml
> 

Reviewed-by: Rob Herring <robh@kernel.org>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/mailbox/mtk,adsp-mbox.yaml b/Documentation/devicetree/bindings/mailbox/mtk,adsp-mbox.yaml
new file mode 100644
index 000000000000..fe454a1fba17
--- /dev/null
+++ b/Documentation/devicetree/bindings/mailbox/mtk,adsp-mbox.yaml
@@ -0,0 +1,50 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mailbox/mtk,adsp-mbox.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek ADSP mailbox
+
+maintainers:
+  - Allen-KH Cheng <Allen-KH.Cheng@mediatek.com>
+
+description: |
+  The MTK ADSP mailbox Inter-Processor Communication (IPC) enables the SoC
+  to ommunicate with ADSP by passing messages through two mailbox channels.
+  The MTK ADSP mailbox IPC also provides the ability for one processor to
+  signal the other processor using interrupts.
+
+properties:
+  compatible:
+    items:
+      - const: mediatek,mt8195-adsp-mbox
+
+  "#mbox-cells":
+    const: 0
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - "#mbox-cells"
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    adsp_mailbox0:mailbox@10816000 {
+        compatible = "mediatek,mt8195-adsp-mbox";
+        #mbox-cells = <0>;
+        reg = <0x10816000 0x1000>;
+        interrupts = <GIC_SPI 702 IRQ_TYPE_LEVEL_HIGH 0>;
+    };