bindings/sound/nvidia%2Ctegra210-i2s.yaml

1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/nvidia,tegra210-i2s.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Tegra210 I2S Controller
10   The Inter-IC Sound (I2S) controller implements full-duplex,
11   bi-directional and single direction point-to-point serial
12   interfaces. It can interface with I2S compatible devices.
13   I2S controller can operate both in master and slave mode.
16   - Jon Hunter <jonathanh@nvidia.com>
17   - Sameer Pujar <spujar@nvidia.com>
20   - $ref: dai-common.yaml#
24     pattern: "^i2s@[0-9a-f]*$"
28       - const: nvidia,tegra210-i2s
29       - items:
30           - enum:
31               - nvidia,tegra234-i2s
32               - nvidia,tegra194-i2s
33               - nvidia,tegra186-i2s
34           - const: nvidia,tegra210-i2s
42       - description: I2S bit clock
43       - description:
44           Sync input clock, which can act as clock source to other I/O
45           modules in AHUB. The Tegra I2S driver sets this clock rate as
52   clock-names:
55       - const: i2s
56       - const: sync_input
58   assigned-clocks:
62   assigned-clock-parents:
66   assigned-clock-rates:
70   sound-name-prefix:
71     pattern: "^I2S[1-9]$"
77         $ref: audio-graph-port.yaml#
80           I2S ACIF (Audio Client Interface) port connected to the
84         $ref: audio-graph-port.yaml#
87           I2S DAP (Digital Audio Port) interface which can be connected
91   - compatible
92   - reg
93   - clocks
94   - clock-names
95   - assigned-clocks
96   - assigned-clock-parents
101   - |
102     #include<dt-bindings/clock/tegra210-car.h>
104     i2s@702d1000 {
105         compatible = "nvidia,tegra210-i2s";
108         clock-names = "i2s";
109         assigned-clocks = <&tegra_car TEGRA210_CLK_I2S0>;
110         assigned-clock-parents = <&tegra_car TEGRA210_CLK_PLL_A_OUT0>;
111         assigned-clock-rates = <1536000>;
112         sound-name-prefix = "I2S1";