On Wed, Oct 16, 2024 at 08:41:00PM +1000, James Calligeros wrote: > From: Martin Povišer <povik+lin@xxxxxxxxxxx> > > CS42L84 is a headphone jack codec made by Cirrus Logic and seen in Apple > computer models starting with 2021 Macbook Pros. It is not a publicly > documented part. To a degree the part is similar to the public CS42L42. > (The L84 superseded L83 seen in earlier Apple models, and the L83 was > pretty much the same as L42.) > > Signed-off-by: Martin Povišer <povik+lin@xxxxxxxxxxx> > Signed-off-by: James Calligeros <jcalligeros99@xxxxxxxxx> > --- > Documentation/devicetree/bindings/sound/cirrus,cs42l84.yaml | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > MAINTAINERS | 1 + > 2 files changed, 61 insertions(+) > > diff --git a/Documentation/devicetree/bindings/sound/cirrus,cs42l84.yaml b/Documentation/devicetree/bindings/sound/cirrus,cs42l84.yaml > new file mode 100644 > index 0000000000000000000000000000000000000000..12bc6dbeeddfaccf9dd00deb2676deac25f28c9e > --- /dev/null > +++ b/Documentation/devicetree/bindings/sound/cirrus,cs42l84.yaml > @@ -0,0 +1,60 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/sound/cirrus,cs42l84.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Cirrus Logic CS42L84 audio CODEC > + > +maintainers: > + - povik+lin@xxxxxxxxxxx Name too please. > + > +description: Needs a '>' if you want to maintain paragraphs. > + The CS42L84 is a headphone jack codec made by Cirrus Logic and embedded > + in personal computers sold by Apple. It was first seen in 2021 Macbook Pro > + models. > + > + It has stereo DAC for playback, mono ADC for capture, and is somewhat > + similar to CS42L42 but with a different regmap. > + > +properties: > + compatible: > + enum: > + - cirrus,cs42l84 > + > + reg: > + description: > + I2C address of the device Drop. That's every device. > + maxItems: 1 > + > + reset-gpios: > + description: > + Reset pin, asserted to reset the device, deasserted to bring > + the device online Drop. That's every reset-gpios. > + maxItems: 1 > + > + interrupts: > + description: > + Interrupt for the IRQ output line of the device Drop. > + maxItems: 1 > + > +required: > + - compatible > + - reg > + > +additionalProperties: false > + > +examples: > + - | > + i2c { > + #address-cells = <1>; > + #size-cells = <0>; > + > + jack_codec: codec@4b { > + compatible = "cirrus,cs42l84"; > + reg = <0x4b>; > + reset-gpios = <&pinctrl_nub 4 GPIO_ACTIVE_LOW>; > + interrupts-extended = <&pinctrl_ap 180 IRQ_TYPE_LEVEL_LOW>; > + #sound-dai-cells = <0>; Not documented. > + }; > + }; > diff --git a/MAINTAINERS b/MAINTAINERS > index c1a2c296446c0724a0c6e70c845e5e5e1e693fd5..f5f85714dc4e8ca9c60b3f6963b2cec1ea33fdd0 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -2132,6 +2132,7 @@ L: asahi@xxxxxxxxxxxxxxx > L: linux-sound@xxxxxxxxxxxxxxx > S: Maintained > F: Documentation/devicetree/bindings/sound/adi,ssm3515.yaml > +F: Documentation/devicetree/bindings/sound/cirrus,cs42l84.yaml > F: Documentation/devicetree/bindings/sound/apple,* > F: sound/soc/apple/* > F: sound/soc/codecs/cs42l83-i2c.c > > -- > 2.47.0 >
