linux-kernel - [PATCH v2 1/2] dt-bindings: dsp: mediatek: add mt8196 dsp document

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Message-ID: <20250703075632.20758-2-hailong.fan@mediatek.com>
Date: Thu, 3 Jul 2025 15:56:23 +0800
From: hailong.fan <hailong.fan@...iatek.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Matthias Brugger
	<matthias.bgg@...il.com>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>, Liam Girdwood
	<lgirdwood@...il.com>, Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>, Bard
 Liao <yung-chuan.liao@...ux.intel.com>, Ranjani Sridharan
	<ranjani.sridharan@...ux.intel.com>, Daniel Baluta <daniel.baluta@....com>,
	Kai Vehmanen <kai.vehmanen@...ux.intel.com>, Pierre-Louis Bossart
	<pierre-louis.bossart@...ux.dev>, Mark Brown <broonie@...nel.org>, Jaroslav
 Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
CC: <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-mediatek@...ts.infradead.org>,
	<sound-open-firmware@...a-project.org>, <linux-sound@...r.kernel.org>,
	<Project_Global_Chrome_Upstream_Group@...iatek.com>, Hailong Fan
	<hailong.fan@...iatek.com>
Subject: [PATCH v2 1/2] dt-bindings: dsp: mediatek: add mt8196 dsp document

From: Hailong Fan <hailong.fan@...iatek.com>

This patch adds mt8196 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: Hailong Fan <hailong.fan@...iatek.com>
---
 .../bindings/sound/mediatek,mt8196-dsp.yaml   | 95 +++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/mediatek,mt8196-dsp.yaml

diff --git a/Documentation/devicetree/bindings/sound/mediatek,mt8196-dsp.yaml b/Documentation/devicetree/bindings/sound/mediatek,mt8196-dsp.yaml
new file mode 100644
index 000000000000..68f594f476e8
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/mediatek,mt8196-dsp.yaml
@@ -0,0 +1,95 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/mediatek,mt8196-dsp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek mt8196 DSP core
+
+maintainers:
+  - Hailong Fan <hailong.fan@...iatek.com>
+
+description: The MediaTek mt8196 SoC mt8196 contain a DSP core used for advanced
+  pre- and post- audio processing.
+
+properties:
+  compatible:
+    const: mediatek,mt8196-dsp
+
+  reg:
+    items:
+      - description: DSP configuration registers
+      - description: DSP SRAM
+      - description: DSP secure registers
+      - description: DSP bus registers
+
+  reg-names:
+    items:
+      - const: cfg
+      - const: sram
+      - const: sec
+      - const: bus
+
+  clocks:
+    items:
+      - description: mux for dsp clock
+      - description: 26M clock
+      - description: ADSP PLL clock
+
+  clock-names:
+    items:
+      - const: adsp_sel
+      - const: clk26m
+      - const: adsppll
+
+  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
+  - mboxes
+  - mbox-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/mt8196-clk.h>
+    #include <dt-bindings/power/mt8196-power.h>
+    adsp@...00000 {
+        compatible = "mediatek,mt8196-dsp";
+        reg = <0x1a000000 0x5000>,
+              <0x1a210000 0x80000>,
+              <0x1a345000 0x300>,
+              <0x1a00f000 0x1000>;
+        reg-names = "cfg", "sram", "sec", "bus";
+        clocks = <&cksys_clk CLK_CK_ADSP_SEL>,
+                 <&cksys_clk CLK_CK_TCK_26M_MX9>,
+                 <&cksys_clk CLK_CK_ADSPPLL>;
+        clock-names = "adsp_sel",
+                      "clk26m",
+                      "adsppll";
+        power-domains = <&scpsys MT8196_POWER_DOMAIN_ADSP_TOP_DORMANT>;
+        mboxes = <&adsp_mailbox0>, <&adsp_mailbox1>;
+        mbox-names = "rx", "tx";
+    };
-- 
2.45.2