diff mbox series

[v7,1/3] dt-bindings: mediatek: add adsp-mbox document

Message ID 20211129063954.1616-2-allen-kh.cheng@mediatek.com (mailing list archive)
State New, archived
Headers show
Series This patches provide ADSP IPC support for MT8195 | expand

Commit Message

Allen-KH Cheng Nov. 29, 2021, 6:39 a.m. UTC 
From: Allen-KH Cheng <Allen-KH.Cheng@mediatek.com>

This patch adds document for mediatek adsp mbox

Reviewed-by: Tzung-Bi Shih <tzungbi@google.com>
Reviewed-by: AngeloGioacchino Del Regno<angelogioacchino.delregno@collabora.com>
Signed-off-by: Allen-KH Cheng <Allen-KH.Cheng@mediatek.com>
---
 .../bindings/mailbox/mtk,adsp-mbox.yaml       | 52 +++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mailbox/mtk,adsp-mbox.yaml

Comments

Tzung-Bi Shih Nov. 29, 2021, 7:10 a.m. UTC | #1 
On Mon, Nov 29, 2021 at 02:39:52PM +0800, allen-kh.cheng wrote:
> From: Allen-KH Cheng <Allen-KH.Cheng@mediatek.com>
> 
> This patch adds document for mediatek adsp mbox
> 
> Reviewed-by: Tzung-Bi Shih <tzungbi@google.com>
> Reviewed-by: AngeloGioacchino Del Regno<angelogioacchino.delregno@collabora.com>
> Signed-off-by: Allen-KH Cheng <Allen-KH.Cheng@mediatek.com>

Neither AngeloGioacchino Del Regno nor myself provided the R-b tags for the patch.  Please remove them.
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..200a5b46fde0
--- /dev/null
+++ b/Documentation/devicetree/bindings/mailbox/mtk,adsp-mbox.yaml
@@ -0,0 +1,52 @@ 
+# 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:
+    description:
+      Physical address base for dsp mbox registers.
+
+  interrupts:
+    description:
+      adsp mbox interrupt
+
+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>;
+    };