[PATCH v4 3/4] dt-bindings: dsp: mediatek: Add mt8186 dsp document

From: Tinghan Shen
Date: Wed Jun 22 2022 - 02:23:50 EST


This patch adds mt8186 dsp document. The dsp is used for Sound Open
Firmware driver node. It includes registers, clocks, memory regions,
and mailbox for dsp.

Signed-off-by: Tinghan Shen <tinghan.shen@xxxxxxxxxxxx>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
---
.../bindings/dsp/mediatek,mt8186-dsp.yaml | 91 +++++++++++++++++++
1 file changed, 91 insertions(+)
create mode 100644 Documentation/devicetree/bindings/dsp/mediatek,mt8186-dsp.yaml

diff --git a/Documentation/devicetree/bindings/dsp/mediatek,mt8186-dsp.yaml b/Documentation/devicetree/bindings/dsp/mediatek,mt8186-dsp.yaml
new file mode 100644
index 000000000000..3e63f79890b4
--- /dev/null
+++ b/Documentation/devicetree/bindings/dsp/mediatek,mt8186-dsp.yaml
@@ -0,0 +1,91 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dsp/mediatek,mt8186-dsp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek mt8186 DSP core
+
+maintainers:
+ - Tinghan Shen <tinghan.shen@xxxxxxxxxxxx>
+
+description: |
+ MediaTek mt8186 SoC contains a DSP core used for
+ advanced pre- and post- audio processing.
+
+properties:
+ compatible:
+ const: mediatek,mt8186-dsp
+
+ reg:
+ items:
+ - description: Address and size of the DSP config registers
+ - description: Address and size of the DSP SRAM
+ - description: Address and size of the DSP secure registers
+ - description: Address and size of the DSP bus registers
+
+ reg-names:
+ items:
+ - const: cfg
+ - const: sram
+ - const: sec
+ - const: bus
+
+ clocks:
+ items:
+ - description: mux for audio dsp clock
+ - description: mux for audio dsp local bus
+
+ clock-names:
+ items:
+ - const: audiodsp
+ - const: adsp_bus
+
+ power-domains:
+ maxItems: 1
+
+ mboxes:
+ items:
+ - description: mailbox for receiving audio DSP requests.
+ - description: mailbox for transmitting requests to audio DSP.
+
+ mbox-names:
+ items:
+ - const: rx
+ - const: tx
+
+ memory-region:
+ items:
+ - description: dma buffer between host and DSP.
+ - description: DSP system memory.
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - clocks
+ - clock-names
+ - power-domains
+ - mbox-names
+ - mboxes
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt8186-clk.h>
+ dsp@10680000 {
+ compatible = "mediatek,mt8186-dsp";
+ reg = <0x10680000 0x2000>,
+ <0x10800000 0x100000>,
+ <0x1068b000 0x100>,
+ <0x1068f000 0x1000>;
+ reg-names = "cfg", "sram", "sec", "bus";
+ clocks = <&topckgen CLK_TOP_AUDIODSP>,
+ <&topckgen CLK_TOP_ADSP_BUS>;
+ clock-names = "audiodsp",
+ "adsp_bus";
+ power-domains = <&spm 6>;
+ mbox-names = "rx", "tx";
+ mboxes = <&adsp_mailbox0>, <&adsp_mailbox1>;
+ };
--
2.18.0