18790b1b51
j721e or j7200 SOM can be attached to the same Common Processor Board (CPB) With the j7200 SOM only the 48KHz family parent clock is available and McASP0 is used for the audio. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Link: https://lore.kernel.org/r/20200910124110.19361-2-peter.ujfalusi@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>
142 lines
4.0 KiB
YAML
142 lines
4.0 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/sound/ti,j721e-cpb-audio.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Texas Instruments J721e Common Processor Board Audio Support
|
|
|
|
maintainers:
|
|
- Peter Ujfalusi <peter.ujfalusi@ti.com>
|
|
|
|
description: |
|
|
The audio support on the board is using pcm3168a codec connected to McASP10
|
|
serializers in parallel setup.
|
|
The pcm3168a SCKI clock is sourced from j721e AUDIO_REFCLK2 pin.
|
|
In order to support 48KHz and 44.1KHz family of sampling rates the parent
|
|
clock for AUDIO_REFCLK2 needs to be changed between PLL4 (for 48KHz) and
|
|
PLL15 (for 44.1KHz). The same PLLs are used for McASP10's AUXCLK clock via
|
|
different HSDIVIDER.
|
|
|
|
Clocking setup for j721e:
|
|
48KHz family:
|
|
PLL4 ---> PLL4_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk
|
|
|-> PLL4_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI
|
|
|
|
44.1KHz family:
|
|
PLL15 ---> PLL15_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk
|
|
|-> PLL15_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI
|
|
|
|
Clocking setup for j7200:
|
|
48KHz family:
|
|
PLL4 ---> PLL4_HSDIV0 ---> MCASP0_AUXCLK ---> McASP0.auxclk
|
|
|-> PLL4_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI
|
|
|
|
properties:
|
|
compatible:
|
|
enum:
|
|
- ti,j721e-cpb-audio
|
|
- ti,j7200-cpb-audio
|
|
|
|
model:
|
|
$ref: /schemas/types.yaml#/definitions/string
|
|
description: User specified audio sound card name
|
|
|
|
ti,cpb-mcasp:
|
|
description: phandle to McASP used on CPB
|
|
$ref: /schemas/types.yaml#/definitions/phandle
|
|
|
|
ti,cpb-codec:
|
|
description: phandle to the pcm3168a codec used on the CPB
|
|
$ref: /schemas/types.yaml#/definitions/phandle
|
|
|
|
clocks:
|
|
minItems: 4
|
|
maxItems: 6
|
|
|
|
clock-names:
|
|
minItems: 4
|
|
maxItems: 6
|
|
|
|
required:
|
|
- compatible
|
|
- model
|
|
- ti,cpb-mcasp
|
|
- ti,cpb-codec
|
|
- clocks
|
|
- clock-names
|
|
|
|
additionalProperties: false
|
|
|
|
allOf:
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
const: ti,j721e-cpb-audio
|
|
|
|
then:
|
|
properties:
|
|
clocks:
|
|
minItems: 6
|
|
items:
|
|
- description: AUXCLK clock for McASP used by CPB audio
|
|
- description: Parent for CPB_McASP auxclk (for 48KHz)
|
|
- description: Parent for CPB_McASP auxclk (for 44.1KHz)
|
|
- description: SCKI clock for the pcm3168a codec on CPB
|
|
- description: Parent for CPB_SCKI clock (for 48KHz)
|
|
- description: Parent for CPB_SCKI clock (for 44.1KHz)
|
|
|
|
clock-names:
|
|
items:
|
|
- const: cpb-mcasp-auxclk
|
|
- const: cpb-mcasp-auxclk-48000
|
|
- const: cpb-mcasp-auxclk-44100
|
|
- const: cpb-codec-scki
|
|
- const: cpb-codec-scki-48000
|
|
- const: cpb-codec-scki-44100
|
|
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
const: ti,j7200-cpb-audio
|
|
|
|
then:
|
|
properties:
|
|
clocks:
|
|
maxItems: 4
|
|
items:
|
|
- description: AUXCLK clock for McASP used by CPB audio
|
|
- description: Parent for CPB_McASP auxclk (for 48KHz)
|
|
- description: SCKI clock for the pcm3168a codec on CPB
|
|
- description: Parent for CPB_SCKI clock (for 48KHz)
|
|
|
|
clock-names:
|
|
items:
|
|
- const: cpb-mcasp-auxclk
|
|
- const: cpb-mcasp-auxclk-48000
|
|
- const: cpb-codec-scki
|
|
- const: cpb-codec-scki-48000
|
|
|
|
examples:
|
|
- |+
|
|
sound {
|
|
compatible = "ti,j721e-cpb-audio";
|
|
model = "j721e-cpb";
|
|
|
|
status = "okay";
|
|
|
|
ti,cpb-mcasp = <&mcasp10>;
|
|
ti,cpb-codec = <&pcm3168a_1>;
|
|
|
|
clocks = <&k3_clks 184 1>,
|
|
<&k3_clks 184 2>, <&k3_clks 184 4>,
|
|
<&k3_clks 157 371>,
|
|
<&k3_clks 157 400>, <&k3_clks 157 401>;
|
|
clock-names = "cpb-mcasp-auxclk",
|
|
"cpb-mcasp-auxclk-48000", "cpb-mcasp-auxclk-44100",
|
|
"cpb-codec-scki",
|
|
"cpb-codec-scki-48000", "cpb-codec-scki-44100";
|
|
};
|