ASoC: dt-bindings: move LPASS dai related bindings out of q6afe

q6afe (Audio Front End) is one of the DSP service that handles both
LPASS (Low Power Audio SubSystem) Audio ports and LPASS clocks.
As LPASS is a hardwware IP and commonly used by Qualcomm Audio DSP.
In order to allow  multiple DSP frameworks to use these bindings
its best to move it out from the dsp specific bindings.

For compatibility reasons and not breaking which is already working
we still maintain same compatible string "qcom,q6afe-dais"

Also as part of this change convert these LPASS dai related bindings
into yaml format.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211026111655.1702-2-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Srinivas Kandagatla 2021-10-26 12:16:39 +01:00 committed by Mark Brown
parent 21b178b8e9
commit e1b26ac902
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2 changed files with 178 additions and 158 deletions

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@ -12,92 +12,6 @@ used by all apr services. Must contain the following properties.
from DSP.
example "qcom,q6afe"
= AFE DAIs (Digital Audio Interface)
"dais" subnode of the AFE node. It represents afe dais, each afe dai is a
subnode of "dais" representing board specific dai setup.
"dais" node should have following properties followed by dai children.
- compatible:
Usage: required
Value type: <stringlist>
Definition: must be "qcom,q6afe-dais"
- #sound-dai-cells
Usage: required
Value type: <u32>
Definition: Must be 1
- #address-cells
Usage: required
Value type: <u32>
Definition: Must be 1
- #size-cells
Usage: required
Value type: <u32>
Definition: Must be 0
== AFE DAI is subnode of "dais" and represent a dai, it includes board specific
configuration of each dai. Must contain the following properties.
- reg
Usage: required
Value type: <u32>
Definition: Must be dai id
- qcom,sd-lines
Usage: required for mi2s interface
Value type: <prop-encoded-array>
Definition: Must be list of serial data lines used by this dai.
should be one or more of the 0-3 sd lines.
- qcom,tdm-sync-mode:
Usage: required for tdm interface
Value type: <prop-encoded-array>
Definition: Synchronization mode.
0 - Short sync bit mode
1 - Long sync mode
2 - Short sync slot mode
- qcom,tdm-sync-src:
Usage: required for tdm interface
Value type: <prop-encoded-array>
Definition: Synchronization source.
0 - External source
1 - Internal source
- qcom,tdm-data-out:
Usage: required for tdm interface
Value type: <prop-encoded-array>
Definition: Data out signal to drive with other masters.
0 - Disable
1 - Enable
- qcom,tdm-invert-sync:
Usage: required for tdm interface
Value type: <prop-encoded-array>
Definition: Invert the sync.
0 - Normal
1 - Invert
- qcom,tdm-data-delay:
Usage: required for tdm interface
Value type: <prop-encoded-array>
Definition: Number of bit clock to delay data
with respect to sync edge.
0 - 0 bit clock cycle
1 - 1 bit clock cycle
2 - 2 bit clock cycle
- qcom,tdm-data-align:
Usage: required for tdm interface
Value type: <prop-encoded-array>
Definition: Indicate how data is packed
within the slot. For example, 32 slot width in case of
sample bit width is 24.
0 - MSB
1 - LSB
= AFE CLOCKSS
"clocks" subnode of the AFE node. It represents q6afe clocks
"clocks" node should have following properties.
@ -122,78 +36,6 @@ apr-service@4 {
compatible = "qcom,q6afe";
reg = <APR_SVC_AFE>;
dais {
compatible = "qcom,q6afe-dais";
#sound-dai-cells = <1>;
#address-cells = <1>;
#size-cells = <0>;
dai@1 {
reg = <HDMI_RX>;
};
dai@24 {
reg = <PRIMARY_TDM_RX_0>;
qcom,tdm-sync-mode = <1>:
qcom,tdm-sync-src = <1>;
qcom,tdm-data-out = <0>;
qcom,tdm-invert-sync = <1>;
qcom,tdm-data-delay = <1>;
qcom,tdm-data-align = <0>;
};
dai@25 {
reg = <PRIMARY_TDM_TX_0>;
qcom,tdm-sync-mode = <1>:
qcom,tdm-sync-src = <1>;
qcom,tdm-data-out = <0>;
qcom,tdm-invert-sync = <1>;
qcom,tdm-data-delay <1>:
qcom,tdm-data-align = <0>;
};
dai@16 {
reg = <PRIMARY_MI2S_RX>;
qcom,sd-lines = <0 2>;
};
dai@17 {
reg = <PRIMARY_MI2S_TX>;
qcom,sd-lines = <1>;
};
dai@18 {
reg = <SECONDARY_MI2S_RX>;
qcom,sd-lines = <0 3>;
};
dai@19 {
reg = <SECONDARY_MI2S_TX>;
qcom,sd-lines = <1>;
};
dai@20 {
reg = <TERTIARY_MI2S_RX>;
qcom,sd-lines = <1 3>;
};
dai@21 {
reg = <TERTIARY_MI2S_TX>;
qcom,sd-lines = <0>;
};
dai@22 {
reg = <QUATERNARY_MI2S_RX>;
qcom,sd-lines = <0>;
};
dai@23 {
reg = <QUATERNARY_MI2S_TX>;
qcom,sd-lines = <1>;
};
};
clocks {
compatible = "qcom,q6afe-clocks";
#clock-cells = <2>;

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@ -0,0 +1,178 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: "http://devicetree.org/schemas/sound/qcom,q6dsp-lpass-ports.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Qualcomm DSP LPASS(Low Power Audio SubSystem) Audio Ports binding
maintainers:
- Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
description: |
This binding describes the Qualcomm DSP LPASS Audio ports
properties:
compatible:
enum:
- qcom,q6afe-dais
reg:
maxItems: 1
'#sound-dai-cells':
const: 1
'#address-cells':
const: 1
'#size-cells':
const: 0
#Digital Audio Interfaces
patternProperties:
'^dai@[0-9]+$':
type: object
description:
Q6DSP Digital Audio Interfaces.
properties:
reg:
description:
Digital Audio Interface ID
qcom,sd-lines:
$ref: /schemas/types.yaml#/definitions/uint32-array
description:
List of serial data lines used by this dai.should be one or more of the 0-3 sd lines.
minItems: 1
maxItems: 4
uniqueItems: true
items:
minimum: 0
maximum: 3
qcom,tdm-sync-mode:
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1, 2]
description:
TDM Synchronization mode
0 = Short sync bit mode
1 = Long sync mode
2 = Short sync slot mode
qcom,tdm-sync-src:
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1]
description:
TDM Synchronization source
0 = External source
1 = Internal source
qcom,tdm-data-out:
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1]
description:
TDM Data out signal to drive with other masters
0 = Disable
1 = Enable
qcom,tdm-invert-sync:
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1]
description:
TDM Invert the sync
0 = Normal
1 = Invert
qcom,tdm-data-delay:
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1, 2]
description:
TDM Number of bit clock to delay data
0 = 0 bit clock cycle
1 = 1 bit clock cycle
2 = 2 bit clock cycle
qcom,tdm-data-align:
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1]
description:
Indicate how data is packed within the slot. For example, 32 slot
width in case of sample bit width is 24TDM Invert the sync.
0 = MSB
1 = LSB
required:
- reg
allOf:
- if:
properties:
reg:
contains:
# TDM DAI ID range from PRIMARY_TDM_RX_0 - QUINARY_TDM_TX_7
items:
minimum: 24
maximum: 103
then:
required:
- qcom,tdm-sync-mode
- qcom,tdm-sync-src
- qcom,tdm-data-out
- qcom,tdm-invert-sync
- qcom,tdm-data-delay
- qcom,tdm-data-align
- if:
properties:
reg:
contains:
# MI2S DAI ID range PRIMARY_MI2S_RX - QUATERNARY_MI2S_TX and
# QUINARY_MI2S_RX - QUINARY_MI2S_TX
items:
oneOf:
- minimum: 16
maximum: 23
- minimum: 127
maximum: 128
then:
required:
- qcom,sd-lines
additionalProperties: false
required:
- compatible
- reg
- "#sound-dai-cells"
- "#address-cells"
- "#size-cells"
additionalProperties: false
examples:
- |
#include <dt-bindings/soc/qcom,apr.h>
#include <dt-bindings/sound/qcom,q6afe.h>
apr {
#address-cells = <1>;
#size-cells = <0>;
apr-service@4 {
reg = <APR_SVC_AFE>;
#address-cells = <1>;
#size-cells = <0>;
q6afedai@1 {
compatible = "qcom,q6afe-dais";
reg = <1>;
#address-cells = <1>;
#size-cells = <0>;
#sound-dai-cells = <1>;
dai@22 {
reg = <QUATERNARY_MI2S_RX>;
qcom,sd-lines = <0 1 2 3>;
};
};
};
};