mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-09-02 08:32:55 +00:00
4649cbd97f
Some fix and updates in the following items:
1. examples:
Update generic node name to 'audio-codec' to comply with the
coming change in 'mt6359.dtsi'. This change is necessary to fix the
dtbs_check error:
pmic: 'mt6359codec' does not match any of the regexes: 'pinctrl-[0-9]+'
2. mediatek,dmic-mode:
After inspecting the .dts and .dtsi files using 'mt6359-codec', it was
discovered that the definitions of 'two wires' and 'one wire' are
inverted compared to the DT schema.
For example, the following boards using MT6359 PMIC:
- mt8192-asurada.dtsi
- mt8195-cherry.dtsi
These boards use the same definitions of 'dmic-mode' as other boards
using MT6358 PMIC. The meaning of '0' or '1' has been noted as comments
in the device trees.
Upon examining the code in [1] and [2], it was confirmed that the
definitions of 'dmic-mode' are consistent between "MT6359 PMIC" and
"MT6358 PMIC". Therefore, the DT Schema should be correct as is.
References:
[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/sound/soc/codecs/mt6358.c#n1875
[2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/sound/soc/codecs/mt6359.c#L1515
Fixes: 539237d1c6 ("dt-bindings: mediatek: mt6359: add codec document")
Signed-off-by: Jiaxin Yu <jiaxin.yu@mediatek.com>
Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patch.msgid.link/20240930075451.14196-1-macpaul.lin@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
62 lines
1.7 KiB
YAML
62 lines
1.7 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/sound/mt6359.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Mediatek MT6359 Codec
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maintainers:
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- Eason Yen <eason.yen@mediatek.com>
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- Jiaxin Yu <jiaxin.yu@mediatek.com>
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- Shane Chien <shane.chien@mediatek.com>
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description: |
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The communication between MT6359 and SoC is through Mediatek PMIC wrapper.
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For more detail, please visit Mediatek PMIC wrapper documentation.
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Must be a child node of PMIC wrapper.
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properties:
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mediatek,dmic-mode:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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Indicates how many data pins are used to transmit two channels of PDM
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signal. 0 means two wires, 1 means one wire. Default value is 0.
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enum:
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- 0 # two wires
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- 1 # one wire
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mediatek,mic-type-0:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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Specifies the type of mic type connected to adc0
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enum:
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- 0 # IDLE - mic in turn-off status
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- 1 # ACC - analog mic with alternating coupling
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- 2 # DMIC - digital mic
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- 3 # DCC - analog mic with direct couping
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- 4 # DCC_ECM_DIFF - analog electret condenser mic with differential mode
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- 5 # DCC_ECM_SINGLE - analog electret condenser mic with single mode
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mediatek,mic-type-1:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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Specifies the type of mic type connected to adc1
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mediatek,mic-type-2:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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Specifies the type of mic type connected to adc2
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additionalProperties: false
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examples:
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- |
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mt6359codec: audio-codec {
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mediatek,dmic-mode = <0>;
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mediatek,mic-type-0 = <2>;
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};
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...
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