| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/sound/nvidia,tegra20-ac97.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: NVIDIA Tegra20 AC97 controller |
| |
| maintainers: |
| - Thierry Reding <treding@nvidia.com> |
| - Jon Hunter <jonathanh@nvidia.com> |
| |
| properties: |
| compatible: |
| const: nvidia,tegra20-ac97 |
| |
| reg: |
| maxItems: 1 |
| |
| resets: |
| maxItems: 1 |
| |
| reset-names: |
| const: ac97 |
| |
| interrupts: |
| maxItems: 1 |
| |
| clocks: |
| maxItems: 1 |
| |
| dmas: |
| maxItems: 2 |
| |
| dma-names: |
| items: |
| - const: rx |
| - const: tx |
| |
| nvidia,codec-reset-gpios: |
| description: Reset pin of external AC97 codec |
| maxItems: 1 |
| |
| nvidia,codec-sync-gpios: |
| description: AC97 DAP _FS line |
| maxItems: 1 |
| |
| required: |
| - compatible |
| - reg |
| - resets |
| - reset-names |
| - interrupts |
| - clocks |
| - dmas |
| - dma-names |
| - nvidia,codec-reset-gpios |
| - nvidia,codec-sync-gpios |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/clock/tegra20-car.h> |
| #include <dt-bindings/gpio/tegra-gpio.h> |
| #include <dt-bindings/interrupt-controller/arm-gic.h> |
| #include <dt-bindings/interrupt-controller/irq.h> |
| #include <dt-bindings/gpio/gpio.h> |
| |
| ac97@70002000 { |
| compatible = "nvidia,tegra20-ac97"; |
| reg = <0x70002000 0x200>; |
| resets = <&tegra_car 3>; |
| reset-names = "ac97"; |
| interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>; |
| clocks = <&tegra_car 3>; |
| dmas = <&apbdma 12>, <&apbdma 12>; |
| dma-names = "rx", "tx"; |
| nvidia,codec-reset-gpios = <&gpio TEGRA_GPIO(V, 2) GPIO_ACTIVE_HIGH>; |
| nvidia,codec-sync-gpios = <&gpio TEGRA_GPIO(P, 0) GPIO_ACTIVE_HIGH>; |
| }; |
| ... |
