ASoC: ts3a227e control debounce times (843e10b3) · Commits · EulixOS / Software / Kernel

Documentation/devicetree/bindings/sound/ti,ts3a227e.yaml

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		# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
		%YAML 1.2
		---
		$id: http://devicetree.org/schemas/sound/ti,ts3a227e.yaml#
		$schema: http://devicetree.org/meta-schemas/core.yaml#

		title: Texas Instruments TS3A227E
		Autonomous Audio Accessory Detection and Configuration Switch

		maintainers:
		- Dylan Reid <dgreid@chromium.org>

		description: \|
		The TS3A227E detect headsets of 3-ring and 4-ring standards and
		switches automatically to route the microphone correctly. It also
		handles key press detection in accordance with the Android audio
		headset specification v1.0.

		properties:
		compatible:
		enum:
		- ti,ts3a227e

		reg:
		const: 0x3b

		interrupts:
		maxItems: 1

		ti,micbias:
		$ref: /schemas/types.yaml#/definitions/uint32
		description: Intended MICBIAS voltage (datasheet section 9.6.7).
		enum:
		- 0 # 2.1 V
		- 1 # 2.2 V
		- 2 # 2.3 V
		- 3 # 2.4 V
		- 4 # 2.5 V
		- 5 # 2.6 V
		- 6 # 2.7 V
		- 7 # 2.8 V
		default: 1

		ti,debounce-release-ms:
		description: key release debounce time in ms (datasheet section 9.6.7).
		enum:
		- 0
		- 20
		default: 20

		ti,debounce-press-ms:
		description: key press debounce time in ms (datasheet section 9.6.7).
		enum:
		- 2
		- 40
		- 80
		- 120
		default: 80

		ti,debounce-insertion-ms:
		description: headset insertion debounce time in ms (datasheet section 9.6.5).
		enum:
		- 2
		- 30
		- 60
		- 90
		- 120
		- 150
		- 1000
		- 2000
		default: 90

		required:
		- compatible
		- reg
		- interrupts

		additionalProperties: false

		examples:
		- \|
		#include <dt-bindings/interrupt-controller/irq.h>
		i2c {
		#address-cells = <1>;
		#size-cells = <0>;
		codec: audio-controller@3b {
		compatible = "ti,ts3a227e";
		reg = <0x3b>;
		interrupt-parent = <&gpio1>;
		interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
		};
		};

		...

Documentation/devicetree/bindings/sound/ts3a227e.txt

deleted100644 → 0

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		Texas Instruments TS3A227E
		Autonomous Audio Accessory Detection and Configuration Switch

		The TS3A227E detect headsets of 3-ring and 4-ring standards and
		switches automatically to route the microphone correctly. It also
		handles key press detection in accordance with the Android audio
		headset specification v1.0.

		Required properties:

		- compatible: Should contain "ti,ts3a227e".
		- reg: The i2c address. Should contain <0x3b>.
		- interrupts: Interrupt number for /INT pin from the 227e

		Optional properies:
		- ti,micbias: Intended MICBIAS voltage (datasheet section 9.6.7).
		Select 0/1/2/3/4/5/6/7 to specify MICBIAS voltage
		2.1V/2.2V/2.3V/2.4V/2.5V/2.6V/2.7V/2.8V
		Default value is "1" (2.2V).

		Examples:

		i2c {
		ts3a227e@3b {
		compatible = "ti,ts3a227e";
		reg = <0x3b>;
		interrupt-parent = <&gpio>;
		interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
		};
		};

sound/soc/codecs/ts3a227e.c

+55 −6

Original line number	Diff line number	Diff line
		@@ -78,12 +78,20 @@ static const int ts3a227e_buttons[] = {
		#define ADC_COMPLETE_INT_DISABLE 0x04
		#define INTB_DISABLE 0x08

		/* TS3A227E_REG_SETTING_1 0x4 */
		#define DEBOUNCE_INSERTION_SETTING_SFT (0)
		#define DEBOUNCE_INSERTION_SETTING_MASK (0x7 << DEBOUNCE_PRESS_SETTING_SFT)

		/* TS3A227E_REG_SETTING_2 0x05 */
		#define KP_ENABLE 0x04

		/* TS3A227E_REG_SETTING_3 0x06 */
		#define MICBIAS_SETTING_SFT (3)
		#define MICBIAS_SETTING_SFT 3
		#define MICBIAS_SETTING_MASK (0x7 << MICBIAS_SETTING_SFT)
		#define DEBOUNCE_RELEASE_SETTING_SFT 2
		#define DEBOUNCE_RELEASE_SETTING_MASK (0x1 << DEBOUNCE_RELEASE_SETTING_SFT)
		#define DEBOUNCE_PRESS_SETTING_SFT 0
		#define DEBOUNCE_PRESS_SETTING_MASK (0x3 << DEBOUNCE_PRESS_SETTING_SFT)

		/* TS3A227E_REG_ACCESSORY_STATUS 0x0b */
		#define TYPE_3_POLE 0x01
		@@ -136,7 +144,7 @@ static bool ts3a227e_volatile_reg(struct device *dev, unsigned int reg)
		{
		switch (reg) {
		case TS3A227E_REG_INTERRUPT ... TS3A227E_REG_INTERRUPT_DISABLE:
		case TS3A227E_REG_SETTING_2:
		case TS3A227E_REG_SETTING_1 ... TS3A227E_REG_SETTING_2:
		case TS3A227E_REG_SWITCH_STATUS_1 ... TS3A227E_REG_ADC_OUTPUT:
		return true;
		default:
		@@ -269,14 +277,55 @@ static const struct regmap_config ts3a227e_regmap_config = {
		static int ts3a227e_parse_device_property(struct ts3a227e *ts3a227e,
		struct device *dev)
		{
		u32 micbias;
		u32 value;
		u32 value_ms;
		u32 setting3_value = 0;
		u32 setting3_mask = 0;
		int err;

		err = device_property_read_u32(dev, "ti,micbias", &micbias);
		err = device_property_read_u32(dev, "ti,micbias", &value);
		if (!err) {
		setting3_mask = MICBIAS_SETTING_MASK;
		setting3_value = (value << MICBIAS_SETTING_SFT) &
		MICBIAS_SETTING_MASK;
		}

		err = device_property_read_u32(dev, "ti,debounce-release-ms",
		&value_ms);
		if (!err) {
		value = (value_ms > 10);
		setting3_mask \|= DEBOUNCE_RELEASE_SETTING_MASK;
		setting3_value \|= (value << DEBOUNCE_RELEASE_SETTING_SFT) &
		DEBOUNCE_RELEASE_SETTING_MASK;
		}

		err = device_property_read_u32(dev, "ti,debounce-press-ms", &value_ms);
		if (!err) {
		value = (value_ms + 20) / 40;
		if (value > 3)
		value = 3;
		setting3_mask \|= DEBOUNCE_PRESS_SETTING_MASK;
		setting3_value \|= (value << DEBOUNCE_PRESS_SETTING_SFT) &
		DEBOUNCE_PRESS_SETTING_MASK;
		}

		if (setting3_mask)
		regmap_update_bits(ts3a227e->regmap, TS3A227E_REG_SETTING_3,
		MICBIAS_SETTING_MASK,
		(micbias & 0x07) << MICBIAS_SETTING_SFT);
		setting3_mask, setting3_value);

		err = device_property_read_u32(dev, "ti,debounce-insertion-ms",
		&value_ms);
		if (!err) {
		if (value_ms < 165)
		value = (value_ms + 15) / 30;
		else if (value_ms < 1500)
		value = 6;
		else
		value = 7;
		regmap_update_bits(ts3a227e->regmap, TS3A227E_REG_SETTING_1,
		DEBOUNCE_INSERTION_SETTING_MASK,
		(value << DEBOUNCE_INSERTION_SETTING_SFT) &
		DEBOUNCE_INSERTION_SETTING_MASK);
		}

		return 0;