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-Samsung Exynos SoC Low Power Audio Subsystem (LPASS)
-
-Required properties:
-
- - compatible : "samsung,exynos5433-lpass"
- - reg : should contain the LPASS top SFR region location
- and size
- - clock-names : should contain following required clocks: "sfr0_ctrl"
- - clocks : should contain clock specifiers of all clocks, which
- input names have been specified in clock-names
- property, in same order.
- - #address-cells : should be 1
- - #size-cells : should be 1
- - ranges : must be present
-
-Each IP block of the Low Power Audio Subsystem should be specified as
-an optional sub-node. For "samsung,exynos5433-lpass" compatible this includes:
-UART, SLIMBUS, PCM, I2S, DMAC, Timers 0...4, VIC, WDT 0...1 devices.
-
-Bindings of the sub-nodes are described in:
- ../serial/samsung_uart.yaml
- ../sound/samsung-i2s.txt
- ../dma/arm-pl330.txt
-
-
-Example:
-
-audio-subsystem {
- compatible = "samsung,exynos5433-lpass";
- reg = <0x11400000 0x100>, <0x11500000 0x08>;
- clocks = <&cmu_aud CLK_PCLK_SFR0_CTRL>;
- clock-names = "sfr0_ctrl";
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
-
- adma: adma@11420000 {
- compatible = "arm,pl330", "arm,primecell";
- reg = <0x11420000 0x1000>;
- interrupts = <0 73 0>;
- clocks = <&cmu_aud CLK_ACLK_DMAC>;
- clock-names = "apb_pclk";
- #dma-cells = <1>;
- #dma-channels = <8>;
- #dma-requests = <32>;
- };
-
- i2s0: i2s0@11440000 {
- compatible = "samsung,exynos7-i2s";
- reg = <0x11440000 0x100>;
- dmas = <&adma 0 &adma 2>;
- dma-names = "tx", "rx";
- interrupts = <0 70 0>;
- clocks = <&cmu_aud CLK_PCLK_AUD_I2S>,
- <&cmu_aud CLK_SCLK_AUD_I2S>,
- <&cmu_aud CLK_SCLK_I2S_BCLK>;
- clock-names = "iis", "i2s_opclk0", "i2s_opclk1";
- pinctrl-names = "default";
- pinctrl-0 = <&i2s0_bus>;
- };
-
- serial_3: serial@11460000 {
- compatible = "samsung,exynos5433-uart";
- reg = <0x11460000 0x100>;
- interrupts = <0 67 0>;
- clocks = <&cmu_aud CLK_PCLK_AUD_UART>,
- <&cmu_aud CLK_SCLK_AUD_UART>;
- clock-names = "uart", "clk_uart_baud0";
- pinctrl-names = "default";
- pinctrl-0 = <&uart_aud_bus>;
- };
- };
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/samsung,exynos5433-lpass.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos SoC Low Power Audio Subsystem (LPASS)
+
+maintainers:
+ - Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
+ - Sylwester Nawrocki <s.nawrocki@samsung.com>
+
+properties:
+ compatible:
+ const: samsung,exynos5433-lpass
+
+ '#address-cells':
+ const: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: sfr0_ctrl
+
+ power-domains:
+ maxItems: 1
+
+ ranges: true
+
+ reg:
+ minItems: 2
+ maxItems: 2
+
+ '#size-cells':
+ const: 1
+
+patternProperties:
+ "^dma-controller@[0-9a-f]+$":
+ $ref: /schemas/dma/arm,pl330.yaml
+
+ "^i2s@[0-9a-f]+$":
+ $ref: /schemas/sound/samsung-i2s.yaml
+
+ "^serial@[0-9a-f]+$":
+ $ref: /schemas/serial/samsung_uart.yaml
+
+required:
+ - compatible
+ - '#address-cells'
+ - clocks
+ - clock-names
+ - ranges
+ - reg
+ - '#size-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/exynos5433.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ audio-subsystem@11400000 {
+ compatible = "samsung,exynos5433-lpass";
+ reg = <0x11400000 0x100>, <0x11500000 0x08>;
+ clocks = <&cmu_aud CLK_PCLK_SFR0_CTRL>;
+ clock-names = "sfr0_ctrl";
+ power-domains = <&pd_aud>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ dma-controller@11420000 {
+ compatible = "arm,pl330", "arm,primecell";
+ reg = <0x11420000 0x1000>;
+ interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cmu_aud CLK_ACLK_DMAC>;
+ clock-names = "apb_pclk";
+ #dma-cells = <1>;
+ #dma-channels = <8>;
+ #dma-requests = <32>;
+ power-domains = <&pd_aud>;
+ };
+
+ i2s@11440000 {
+ compatible = "samsung,exynos7-i2s";
+ reg = <0x11440000 0x100>;
+ dmas = <&adma 0>, <&adma 2>;
+ dma-names = "tx", "rx";
+ interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&cmu_aud CLK_PCLK_AUD_I2S>,
+ <&cmu_aud CLK_SCLK_AUD_I2S>,
+ <&cmu_aud CLK_SCLK_I2S_BCLK>;
+ clock-names = "iis", "i2s_opclk0", "i2s_opclk1";
+ #clock-cells = <1>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2s0_bus>;
+ power-domains = <&pd_aud>;
+ #sound-dai-cells = <1>;
+ };
+
+ serial@11460000 {
+ compatible = "samsung,exynos5433-uart";
+ reg = <0x11460000 0x100>;
+ interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cmu_aud CLK_PCLK_AUD_UART>,
+ <&cmu_aud CLK_SCLK_AUD_UART>;
+ clock-names = "uart", "clk_uart_baud0";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart_aud_bus>;
+ power-domains = <&pd_aud>;
+ };
+ };