Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | * mvebu (Kirkwood, Dove, Armada 370) audio controller |
| 2 | |
| 3 | Required properties: |
| 4 | |
| 5 | - compatible: |
| 6 | "marvell,kirkwood-audio" for Kirkwood platforms |
| 7 | "marvell,dove-audio" for Dove platforms |
| 8 | "marvell,armada370-audio" for Armada 370 platforms |
| 9 | "marvell,armada-380-audio" for Armada 38x platforms |
| 10 | |
| 11 | - reg: physical base address of the controller and length of memory mapped |
| 12 | region (named "i2s_regs"). |
| 13 | With "marvell,armada-380-audio" two other regions are required: |
| 14 | first of those is dedicated for Audio PLL Configuration registers |
| 15 | (named "pll_regs") and the second one ("soc_ctrl") - for register |
| 16 | where one of exceptive I/O types (I2S or S/PDIF) is set. |
| 17 | |
| 18 | - interrupts: |
| 19 | with "marvell,kirkwood-audio", the audio interrupt |
| 20 | with "marvell,dove-audio", a list of two interrupts, the first for |
| 21 | the data flow, and the second for errors. |
| 22 | |
| 23 | - clocks: one or two phandles. |
| 24 | The first one is mandatory and defines the internal clock. |
| 25 | The second one is optional and defines an external clock. |
| 26 | |
| 27 | - clock-names: names associated to the clocks: |
| 28 | "internal" for the internal clock |
| 29 | "extclk" for the external clock |
| 30 | |
| 31 | Optional properties: |
| 32 | |
| 33 | - spdif-mode: |
| 34 | Enable S/PDIF mode on Armada 38x SoC. Using this property |
| 35 | disables standard I2S I/O. Valid only with "marvell,armada-380-audio" |
| 36 | compatible string. |
| 37 | |
| 38 | Example: |
| 39 | |
| 40 | i2s1: audio-controller@b4000 { |
| 41 | compatible = "marvell,dove-audio"; |
| 42 | reg = <0xb4000 0x2210>; |
| 43 | interrupts = <21>, <22>; |
| 44 | clocks = <&gate_clk 13>; |
| 45 | clock-names = "internal"; |
| 46 | }; |