158 lines
4.1 KiB
YAML
158 lines
4.1 KiB
YAML
|
# SPDX-License-Identifier: GPL-2.0
|
||
|
|
%YAML 1.2
|
||
|
|
---
|
||
|
|
$id: http://devicetree.org/schemas/sound/samsung-i2s.yaml#
|
||
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||
|
|
|
||
|
|
title: Samsung SoC I2S controller
|
||
|
|
|
||
|
|
maintainers:
|
||
|
|
- Krzysztof Kozlowski <krzk@kernel.org>
|
||
|
|
- Sylwester Nawrocki <s.nawrocki@samsung.com>
|
||
|
|
|
||
|
|
allOf:
|
||
|
|
- $ref: dai-common.yaml#
|
||
|
|
|
||
|
|
properties:
|
||
|
|
compatible:
|
||
|
|
description: |
|
||
|
|
samsung,s3c6410-i2s: for 8/16/24bit stereo I2S.
|
||
|
|
|
||
|
|
samsung,s5pv210-i2s: for 8/16/24bit multichannel (5.1) I2S with
|
||
|
|
secondary FIFO, s/w reset control and internal mux for root clock
|
||
|
|
source.
|
||
|
|
|
||
|
|
samsung,exynos5420-i2s: for 8/16/24bit multichannel (5.1) I2S for
|
||
|
|
playback, stereo channel capture, secondary FIFO using internal
|
||
|
|
or external DMA, s/w reset control, internal mux for root clock
|
||
|
|
source and 7.1 channel TDM support for playback; TDM (Time division
|
||
|
|
multiplexing) is to allow transfer of multiple channel audio data on
|
||
|
|
single data line.
|
||
|
|
|
||
|
|
samsung,exynos7-i2s: with all the available features of Exynos5 I2S.
|
||
|
|
Exynos7 I2S has 7.1 channel TDM support for capture, secondary FIFO
|
||
|
|
with only external DMA and more number of root clock sampling
|
||
|
|
frequencies.
|
||
|
|
|
||
|
|
samsung,exynos7-i2s1: I2S1 on previous samsung platforms supports
|
||
|
|
stereo channels. Exynos7 I2S1 upgraded to 5.1 multichannel with
|
||
|
|
slightly modified bit offsets.
|
||
|
|
|
||
|
|
tesla,fsd-i2s: for 8/16/24bit stereo channel I2S for playback and
|
||
|
|
capture, secondary FIFO using external DMA, s/w reset control,
|
||
|
|
internal mux for root clock source with all root clock sampling
|
||
|
|
frequencies supported by Exynos7 I2S and 7.1 channel TDM support
|
||
|
|
for playback and capture TDM (Time division multiplexing) to allow
|
||
|
|
transfer of multiple channel audio data on single data line.
|
||
|
|
enum:
|
||
|
|
- samsung,s3c6410-i2s
|
||
|
|
- samsung,s5pv210-i2s
|
||
|
|
- samsung,exynos5420-i2s
|
||
|
|
- samsung,exynos7-i2s
|
||
|
|
- samsung,exynos7-i2s1
|
||
|
|
- tesla,fsd-i2s
|
||
|
|
|
||
|
|
'#address-cells':
|
||
|
|
const: 1
|
||
|
|
|
||
|
|
'#size-cells':
|
||
|
|
const: 0
|
||
|
|
|
||
|
|
reg:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
dmas:
|
||
|
|
minItems: 2
|
||
|
|
maxItems: 3
|
||
|
|
|
||
|
|
dma-names:
|
||
|
|
oneOf:
|
||
|
|
- items:
|
||
|
|
- const: tx
|
||
|
|
- const: rx
|
||
|
|
- items:
|
||
|
|
- const: tx
|
||
|
|
- const: rx
|
||
|
|
- const: tx-sec
|
||
|
|
|
||
|
|
clocks:
|
||
|
|
minItems: 1
|
||
|
|
maxItems: 3
|
||
|
|
|
||
|
|
clock-names:
|
||
|
|
oneOf:
|
||
|
|
- items:
|
||
|
|
- const: iis
|
||
|
|
- items: # for I2S0
|
||
|
|
- const: iis
|
||
|
|
- const: i2s_opclk0
|
||
|
|
- const: i2s_opclk1
|
||
|
|
- items: # for I2S1 and I2S2
|
||
|
|
- const: iis
|
||
|
|
- const: i2s_opclk0
|
||
|
|
description: |
|
||
|
|
"iis" is the I2S bus clock and i2s_opclk0, i2s_opclk1 are sources
|
||
|
|
of the root clock. I2S0 has internal mux to select the source
|
||
|
|
of root clock and I2S1 and I2S2 doesn't have any such mux.
|
||
|
|
|
||
|
|
"#clock-cells":
|
||
|
|
const: 1
|
||
|
|
|
||
|
|
clock-output-names:
|
||
|
|
deprecated: true
|
||
|
|
oneOf:
|
||
|
|
- items: # for I2S0
|
||
|
|
- const: i2s_cdclk0
|
||
|
|
- items: # for I2S1
|
||
|
|
- const: i2s_cdclk1
|
||
|
|
- items: # for I2S2
|
||
|
|
- const: i2s_cdclk2
|
||
|
|
description: Names of the CDCLK I2S output clocks.
|
||
|
|
|
||
|
|
interrupts:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
samsung,idma-addr:
|
||
|
|
$ref: /schemas/types.yaml#/definitions/uint32
|
||
|
|
description: |
|
||
|
|
Internal DMA register base address of the audio
|
||
|
|
subsystem (used in secondary sound source).
|
||
|
|
|
||
|
|
power-domains:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
"#sound-dai-cells":
|
||
|
|
const: 1
|
||
|
|
|
||
|
|
required:
|
||
|
|
- compatible
|
||
|
|
- reg
|
||
|
|
- dmas
|
||
|
|
- dma-names
|
||
|
|
- clocks
|
||
|
|
- clock-names
|
||
|
|
|
||
|
|
unevaluatedProperties: false
|
||
|
|
|
||
|
|
examples:
|
||
|
|
- |
|
||
|
|
#include <dt-bindings/clock/exynos-audss-clk.h>
|
||
|
|
|
||
|
|
i2s0: i2s@3830000 {
|
||
|
|
compatible = "samsung,s5pv210-i2s";
|
||
|
|
reg = <0x03830000 0x100>;
|
||
|
|
dmas = <&pdma0 10>,
|
||
|
|
<&pdma0 9>,
|
||
|
|
<&pdma0 8>;
|
||
|
|
dma-names = "tx", "rx", "tx-sec";
|
||
|
|
clocks = <&clock_audss EXYNOS_I2S_BUS>,
|
||
|
|
<&clock_audss EXYNOS_I2S_BUS>,
|
||
|
|
<&clock_audss EXYNOS_SCLK_I2S>;
|
||
|
|
clock-names = "iis", "i2s_opclk0", "i2s_opclk1";
|
||
|
|
#clock-cells = <1>;
|
||
|
|
samsung,idma-addr = <0x03000000>;
|
||
|
|
pinctrl-names = "default";
|
||
|
|
pinctrl-0 = <&i2s0_bus>;
|
||
|
|
#sound-dai-cells = <1>;
|
||
|
|
};
|