[PATCH v5 1/2] dt-bindings: sound: tlv320adc3xxx: New codec driver
Ricard Wanderlof
ricardw at axis.com
Mon Nov 15 17:30:49 CET 2021
DT bindings for tlv320adc3xxx driver, currently supporting
Texas Instruments TLV320ADC3001 and TLV320ADC3101 audio ADCs.
Signed-off-by: Ricard Wanderlof <ricardw at axis.com>
---
.../bindings/sound/ti,tlv320adc3xxx.yaml | 137 ++++++++++++++++++
include/dt-bindings/sound/tlv320adc3xxx.h | 28 ++++
2 files changed, 165 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/ti,tlv320adc3xxx.yaml
create mode 100644 include/dt-bindings/sound/tlv320adc3xxx.h
diff --git a/Documentation/devicetree/bindings/sound/ti,tlv320adc3xxx.yaml b/Documentation/devicetree/bindings/sound/ti,tlv320adc3xxx.yaml
new file mode 100644
index 000000000000..c4fed6335230
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/ti,tlv320adc3xxx.yaml
@@ -0,0 +1,137 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/ti,tlv320adc3xxx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments TLV320ADC3001/TLV320ADC3101 Stereo ADC
+
+maintainers:
+ - Ricard Wanderlof <ricardw at axis.com>
+
+description: |
+ Texas Instruments TLV320ADC3001 and TLV320ADC3101 Stereo ADC
+ https://www.ti.com/product/TLV320ADC3001
+ https://www.ti.com/product/TLV320ADC3101
+
+properties:
+ compatible:
+ enum:
+ - ti,tlv320adc3001
+ - ti,tlv320adc3101
+
+ reg:
+ maxItems: 1
+ description: I2C address
+
+ '#sound-dai-cells':
+ const: 0
+
+ '#gpio-cells':
+ const: 2
+
+ gpio-controller: true
+
+ reset-gpios:
+ maxItems: 1
+ description: GPIO pin used for codec reset (RESET pin)
+
+ clocks:
+ maxItems: 1
+ description: Master clock (MCLK)
+
+ ti,dmdin-gpio1:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum:
+ - 0 # ADC3XXX_GPIO_DISABLED - I/O buffers powered down and not used
+ - 1 # ADC3XXX_GPIO_INPUT - Various non-GPIO input functions
+ - 2 # ADC3XXX_GPIO_GPI - General purpose input
+ - 3 # ADC3XXX_GPIO_GPO - General purpose output
+ - 4 # ADC3XXX_GPIO_CLKOUT - Clock source set in CLKOUT_MUX reg
+ - 5 # ADC3XXX_GPIO_INT1 - INT1 output
+ - 6 # ADC3XXX_GPIO_SECONDARY_BCLK - Codec interface secondary BCLK
+ - 7 # ADC3XXX_GPIO_SECONDARY_WCLK - Codec interface secondary WCLK
+ default: 0
+ description: |
+ Configuration for DMDIN/GPIO1 pin.
+
+ When ADC3XXX_GPIO_GPO is configured, this causes corresponding the
+ ALSA control "GPIOx Output" to appear, as a switch control.
+
+ ti,dmclk-gpio2:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum:
+ - 0 # ADC3XXX_GPIO_DISABLED - I/O buffers powered down and not used
+ - 1 # ADC3XXX_GPIO_INPUT - Various non-GPIO input functions
+ - 2 # ADC3XXX_GPIO_GPI - General purpose input
+ - 3 # ADC3XXX_GPIO_GPO - General purpose output
+ - 4 # ADC3XXX_GPIO_CLKOUT - Clock source set in CLKOUT_MUX reg
+ - 5 # ADC3XXX_GPIO_INT1 - INT1 output
+ - 6 # ADC3XXX_GPIO_SECONDARY_BCLK - Codec interface secondary BCLK
+ - 7 # ADC3XXX_GPIO_SECONDARY_WCLK - Codec interface secondary WCLK
+ default: 0
+ description: |
+ Configuration for DMCLK/GPIO2 pin.
+
+ When ADC3XXX_GPIO_GPO is configured, this causes corresponding the
+ ALSA control "GPIOx Output" to appear, as a switch control.
+
+ Note that there is currently no support for reading the GPIO pins as
+ inputs.
+
+ ti,micbias1-vg:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum:
+ - 0 # ADC3XXX_MICBIAS_OFF - Mic bias is powered down
+ - 1 # ADC3XXX_MICBIAS_2_0V - Mic bias is set to 2.0V
+ - 2 # ADC3XXX_MICBIAS_2_5V - Mic bias is set to 2.5V
+ - 3 # ADC3XXX_MICBIAS_AVDD - Mic bias is same as AVDD supply
+ default: 0
+ description: |
+ Mic bias voltage output on MICBIAS1 pin
+
+ ti,micbias2-vg:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum:
+ - 0 # ADC3XXX_MICBIAS_OFF - Mic bias is powered down
+ - 1 # ADC3XXX_MICBIAS_2_0V - Mic bias is set to 2.0V
+ - 2 # ADC3XXX_MICBIAS_2_5V - Mic bias is set to 2.5V
+ - 3 # ADC3XXX_MICBIAS_AVDD - Mic bias is same as AVDD supply
+ default: 0
+ description: |
+ Mic bias voltage output on MICBIAS2 pin
+
+required:
+ - compatible
+ - reg
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/sound/tlv320adc3xxx.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ tlv320adc3101: tlv320adc3101 at 18 {
+ compatible = "ti,tlv320adc3101";
+ reg = <0x18>;
+ reset-gpios = <&gpio_pc 3 GPIO_ACTIVE_LOW>;
+ clocks = <&audio_mclk>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ ti,dmdin-gpio1 = <ADC3XXX_GPIO_GPO>;
+ ti,micbias1-vg = <ADC3XXX_MICBIAS_AVDD>;
+ };
+ };
+
+ audio_mclk: clock {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <24576000>;
+ };
+...
diff --git a/include/dt-bindings/sound/tlv320adc3xxx.h b/include/dt-bindings/sound/tlv320adc3xxx.h
new file mode 100644
index 000000000000..59ed510e6cf1
--- /dev/null
+++ b/include/dt-bindings/sound/tlv320adc3xxx.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Devicetree bindings definitions for tlv320adc3xxx driver.
+ *
+ * Copyright (C) 2021 Axis Communications AB
+ */
+#ifndef __DT_TLV320ADC3XXX_H
+#define __DT_TLV320ADC3XXX_H
+
+#define ADC3XXX_GPIO_DISABLED 0 /* I/O buffers powered down */
+#define ADC3XXX_GPIO_INPUT 1 /* Various non-GPIO inputs */
+#define ADC3XXX_GPIO_GPI 2 /* General purpose input */
+#define ADC3XXX_GPIO_GPO 3 /* General purpose output */
+#define ADC3XXX_GPIO_CLKOUT 4 /* Source set in reg. CLKOUT_MUX */
+#define ADC3XXX_GPIO_INT1 5 /* INT1 output */
+#define ADC3XXX_GPIO_INT2 6 /* INT2 output */
+/* value 7 is reserved */
+#define ADC3XXX_GPIO_SECONDARY_BCLK 8 /* Codec interface secondary BCLK */
+#define ADC3XXX_GPIO_SECONDARY_WCLK 9 /* Codec interface secondary WCLK */
+#define ADC3XXX_GPIO_ADC_MOD_CLK 10 /* Clock output for digital mics */
+/* values 11-15 reserved */
+
+#define ADC3XXX_MICBIAS_OFF 0 /* Micbias pin powered off */
+#define ADC3XXX_MICBIAS_2_0V 1 /* Micbias pin set to 2.0V */
+#define ADC3XXX_MICBIAS_2_5V 2 /* Micbias pin set to 2.5V */
+#define ADC3XXX_MICBIAS_AVDD 3 /* Use AVDD voltage for micbias pin */
+
+#endif /* __DT_TLV320ADC3XXX_H */
--
2.20.1
--
Ricard Wolf Wanderlof ricardw(at)axis.com
Axis Communications AB, Lund, Sweden www.axis.com
Phone +46 46 272 2016 Fax +46 46 13 61 30
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