From 8d7ab8800184cc75000dd2e784fe121934482878 Mon Sep 17 00:00:00 2001
From: David Rhodes <drhodes@opensource.cirrus.com>
Date: Tue, 7 Sep 2021 17:57:19 -0500
Subject: [PATCH] ASoC: cs35l41: Add bindings for CS35L41
Git-commit: 8d7ab8800184cc75000dd2e784fe121934482878
Patch-mainline: v5.16-rc1
References: bsc#1203699
Devicetree binding documentation for CS35L41 driver
CS35L41 is a 11-V Boosted Mono Class D Amplifier with
DSP Speaker Protection and Equalization
Signed-off-by: David Rhodes <drhodes@opensource.cirrus.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210907225719.2018115-3-drhodes@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
.../devicetree/bindings/sound/cs35l41.yaml | 151 ++++++++++++++++++
1 file changed, 151 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/cs35l41.yaml
diff --git a/Documentation/devicetree/bindings/sound/cs35l41.yaml b/Documentation/devicetree/bindings/sound/cs35l41.yaml
new file mode 100644
index 000000000000..fde78c850286
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/cs35l41.yaml
@@ -0,0 +1,151 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/cs35l41.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic CS35L41 Speaker Amplifier
+
+maintainers:
+ - david.rhodes@cirrus.com
+
+description: |
+ CS35L41 is a boosted mono Class D amplifier with DSP
+ speaker protection and equalization
+
+properties:
+ compatible:
+ enum:
+ - cirrus,cs35l40
+ - cirrus,cs35l41
+
+ reg:
+ maxItems: 1
+
+ '#sound-dai-cells':
+ description:
+ The first cell indicating the audio interface.
+ const: 1
+
+ reset-gpios:
+ maxItems: 1
+
+ VA-supply:
+ description: voltage regulator phandle for the VA supply
+
+ VP-supply:
+ description: voltage regulator phandle for the VP supply
+
+ cirrus,boost-peak-milliamp:
+ description:
+ Boost-converter peak current limit in mA.
+ Configures the peak current by monitoring the current through the boost FET.
+ Range starts at 1600 mA and goes to a maximum of 4500 mA with increments
+ of 50 mA. See section 4.3.6 of the datasheet for details.
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+ minimum: 1600
+ maximum: 4500
+ default: 4500
+
+ cirrus,boost-ind-nanohenry:
+ description:
+ Boost inductor value, expressed in nH. Valid
+ values include 1000, 1200, 1500 and 2200.
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+ minimum: 1000
+ maximum: 2200
+
+ cirrus,boost-cap-microfarad:
+ description:
+ Total equivalent boost capacitance on the VBST
+ and VAMP pins, derated at 11 volts DC. The value must be rounded to the
+ nearest integer and expressed in uF.
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+
+ cirrus,asp-sdout-hiz:
+ description:
+ Audio serial port SDOUT Hi-Z control. Sets the Hi-Z
+ configuration for SDOUT pin of amplifier.
+ 0 = Logic 0 during unused slots, and while all transmit channels disabled
+ 1 = Hi-Z during unused slots but logic 0 while all transmit channels disabled
+ 2 = (Default) Logic 0 during unused slots, but Hi-Z while all transmit channels disabled
+ 3 = Hi-Z during unused slots and while all transmit channels disabled
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+ minimum: 0
+ maximum: 3
+ default: 2
+
+ cirrus,gpio1-polarity-invert:
+ description:
+ Boolean which specifies whether the GPIO1
+ level is inverted. If this property is not present the level is not inverted.
+ type: boolean
+
+ cirrus,gpio1-output-enable:
+ description:
+ Boolean which specifies whether the GPIO1 pin
+ is configured as an output. If this property is not present the
+ pin will be configured as an input.
+ type: boolean
+
+ cirrus,gpio1-src-select:
+ description:
+ Configures the function of the GPIO1 pin.
+ Note that the options are different from the GPIO2 pin
+ 0 = High Impedance (Default)
+ 1 = GPIO
+ 2 = Sync
+ 3 = MCLK input
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+ minimum: 0
+ maximum: 3
+
+ cirrus,gpio2-polarity-invert:
+ description:
+ Boolean which specifies whether the GPIO2
+ level is inverted. If this property is not present the level is not inverted.
+ type: boolean
+
+ cirrus,gpio2-output-enable:
+ description:
+ Boolean which specifies whether the GPIO2 pin
+ is configured as an output. If this property is not present the
+ pin will be configured as an input.
+ type: boolean
+
+ cirrus,gpio2-src-select:
+ description:
+ Configures the function of the GPIO2 pin.
+ Note that the options are different from the GPIO1 pin.
+ 0 = High Impedance (Default)
+ 1 = GPIO
+ 2 = Open Drain INTB
+ 3 = MCLK input
+ 4 = Push-pull INTB (active low)
+ 5 = Push-pull INT (active high)
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+ minimum: 0
+ maximum: 5
+
+required:
+ - compatible
+ - reg
+ - "#sound-dai-cells"
+ - cirrus,boost-peak-milliamp
+ - cirrus,boost-ind-nanohenry
+ - cirrus,boost-cap-microfarad
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ cs35l41: cs35l41@2 {
+ compatible = "cirrus,cs35l41";
+ reg = <2>;
+ VA-supply = <&dummy_vreg>;
+ VP-supply = <&dummy_vreg>;
+ reset-gpios = <&gpio 110 0>;
+ cirrus,boost-peak-milliamp = <4500>;
+ cirrus,boost-ind-nanohenry = <1000>;
+ cirrus,boost-cap-microfarad = <15>;
+ };
\ No newline at end of file
--
2.35.3