linux-kernel - [PATCH 1/2] dt-bindings: i2s: spacemit: add support for K1 SoC

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250814-k1-i2s-v1-1-c31149b29041@linux.spacemit.com>
Date: Thu, 14 Aug 2025 16:54:19 +0800
From: Troy Mitchell <troy.mitchell@...ux.spacemit.com>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Yixun Lan <dlan@...too.org>, 
 Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, 
 Philipp Zabel <p.zabel@...gutronix.de>
Cc: linux-sound@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-riscv@...ts.infradead.org, spacemit@...ts.linux.dev, 
 linux-kernel@...r.kernel.org, 
 Troy Mitchell <troy.mitchell@...ux.spacemit.com>
Subject: [PATCH 1/2] dt-bindings: i2s: spacemit: add support for K1 SoC

Add dt-binding for the i2s driver of SpacemiT's K1 SoC.

Signed-off-by: Troy Mitchell <troy.mitchell@...ux.spacemit.com>
---
 .../devicetree/bindings/sound/spacemit,k1-i2s.yaml | 88 ++++++++++++++++++++++
 1 file changed, 88 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/spacemit,k1-i2s.yaml b/Documentation/devicetree/bindings/sound/spacemit,k1-i2s.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..7d9110638d71792db6e5bb72559f6abaf4cb59bb
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/spacemit,k1-i2s.yaml
@@ -0,0 +1,88 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/spacemit,k1-i2s.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: K1 I2S controller
+
+description:
+  The I2S bus (Inter-IC sound bus) is a serial link for digital
+  audio data transfer between devices in the system.
+
+maintainers:
+  - Troy Mitchell <troy.mitchell@...ux.spacemit.com>
+
+allOf:
+  - $ref: dai-common.yaml#
+
+properties:
+  compatible:
+    const: spacemit,k1-i2s
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: clock for I2S sysclk
+      - description: clock for I2S bclk
+      - description: clock for I2S bus
+      - description: clock for I2S controller
+
+  clock-names:
+    items:
+      - const: sysclk
+      - const: bclk
+      - const: bus
+      - const: func
+
+  dmas:
+    minItems: 1
+    maxItems: 2
+
+  dma-names:
+    oneOf:
+      - const: rx
+      - items:
+          - const: tx
+          - const: rx
+
+  resets:
+    maxItems: 1
+
+  port:
+    $ref: audio-graph-port.yaml#
+    unevaluatedProperties: false
+
+  "#sound-dai-cells":
+    const: 0
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - dmas
+  - dma-names
+  - resets
+  - "#sound-dai-cells"
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/spacemit,k1-syscon.h>
+    i2s@...26000 {
+      compatible = "spacemit,k1-i2s";
+      reg = <0xd4026000 0x30>;
+      clocks = <&syscon_mpmu CLK_I2S_SYSCLK>,
+               <&syscon_mpmu CLK_I2S_BCLK>,
+               <&syscon_apbc CLK_SSPA0_BUS>,
+               <&syscon_apbc CLK_SSPA0>;
+      clock-names = "sysclk", "bclk", "bus", "func";
+      dmas = <&pdma0 21 1>, <&pdma0 22 1>;
+      dma-names = "tx", "rx";
+      resets = <&syscon_apbc RESET_SSPA0>;
+      #sound-dai-cells = <0>;
+    };

-- 
2.50.1