| Tom Rini | 762f85b | 2024-07-20 11:15:10 -0600 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/sound/nvidia,tegra20-ac97.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: NVIDIA Tegra20 AC97 controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Thierry Reding <treding@nvidia.com> |
| 11 | - Jon Hunter <jonathanh@nvidia.com> |
| 12 | |
| 13 | properties: |
| 14 | compatible: |
| 15 | const: nvidia,tegra20-ac97 |
| 16 | |
| 17 | reg: |
| 18 | maxItems: 1 |
| 19 | |
| 20 | resets: |
| 21 | maxItems: 1 |
| 22 | |
| 23 | reset-names: |
| 24 | const: ac97 |
| 25 | |
| 26 | interrupts: |
| 27 | maxItems: 1 |
| 28 | |
| 29 | clocks: |
| 30 | maxItems: 1 |
| 31 | |
| 32 | dmas: |
| 33 | maxItems: 2 |
| 34 | |
| 35 | dma-names: |
| 36 | items: |
| 37 | - const: rx |
| 38 | - const: tx |
| 39 | |
| 40 | nvidia,codec-reset-gpios: |
| 41 | description: Reset pin of external AC97 codec |
| 42 | maxItems: 1 |
| 43 | |
| 44 | nvidia,codec-sync-gpios: |
| 45 | description: AC97 DAP _FS line |
| 46 | maxItems: 1 |
| 47 | |
| 48 | required: |
| 49 | - compatible |
| 50 | - reg |
| 51 | - resets |
| 52 | - reset-names |
| 53 | - interrupts |
| 54 | - clocks |
| 55 | - dmas |
| 56 | - dma-names |
| 57 | - nvidia,codec-reset-gpios |
| 58 | - nvidia,codec-sync-gpios |
| 59 | |
| 60 | additionalProperties: false |
| 61 | |
| 62 | examples: |
| 63 | - | |
| 64 | #include <dt-bindings/clock/tegra20-car.h> |
| 65 | #include <dt-bindings/gpio/tegra-gpio.h> |
| 66 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 67 | #include <dt-bindings/interrupt-controller/irq.h> |
| 68 | #include <dt-bindings/gpio/gpio.h> |
| 69 | |
| 70 | ac97@70002000 { |
| 71 | compatible = "nvidia,tegra20-ac97"; |
| 72 | reg = <0x70002000 0x200>; |
| 73 | resets = <&tegra_car 3>; |
| 74 | reset-names = "ac97"; |
| 75 | interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>; |
| 76 | clocks = <&tegra_car 3>; |
| 77 | dmas = <&apbdma 12>, <&apbdma 12>; |
| 78 | dma-names = "rx", "tx"; |
| 79 | nvidia,codec-reset-gpios = <&gpio TEGRA_GPIO(V, 2) GPIO_ACTIVE_HIGH>; |
| 80 | nvidia,codec-sync-gpios = <&gpio TEGRA_GPIO(P, 0) GPIO_ACTIVE_HIGH>; |
| 81 | }; |
| 82 | ... |