ASoC: rt5640: Add devicetree-bindings for dmic, jack-detect

- realtek,ldo1-en-gpios : The GPIO that controls the CODEC's LDO1_EN pin.

- realtek,dmic1-data-pin

  0: dmic1 is not used

  1: using IN1P pin as dmic1 data pin

  2: using GPIO3 pin as dmic1 data pin

- realtek,dmic2-data-pin

  0: dmic2 is not used

  1: using IN1N pin as dmic2 data pin

  2: using GPIO4 pin as dmic2 data pin

- realtek,jack-detect-source

  u32. Valid values:

  0: jack-detect is not used

  1: Use GPIO1 for jack-detect

  2: Use JD1_IN4P for jack-detect

  3: Use JD2_IN4N for jack-detect

  4: Use GPIO2 for jack-detect

  5: Use GPIO3 for jack-detect

  6: Use GPIO4 for jack-detect

- realtek,jack-detect-not-inverted

  bool. Normal jack-detect switches give an inverted signal, set this bool

  in the rare case you've a jack-detect switch which is not inverted.

- realtek,over-current-threshold-microamp

  u32, micbias over-current detection threshold in µA, valid values are

  600, 1500 and 2000µA.

- realtek,over-current-scale-factor

  u32, micbias over-current detection scale-factor, valid values are:

  0: Scale current by 0.5

  1: Scale current by 0.75

  2: Scale current by 1.0

  3: Scale current by 1.5

Pins on the device (for linking into audio routes) for RT5639/RT5640:

  * DMIC1

/* SPDX-License-Identifier: GPL-2.0 */

#ifndef __DT_RT5640_H

#define __DT_RT5640_H

#define RT5640_DMIC1_DATA_PIN_NONE	0

#define RT5640_DMIC1_DATA_PIN_IN1P	1

#define RT5640_DMIC1_DATA_PIN_GPIO3	2

#define RT5640_DMIC2_DATA_PIN_NONE	0

#define RT5640_DMIC2_DATA_PIN_IN1N	1

#define RT5640_DMIC2_DATA_PIN_GPIO4	2

#define RT5640_JD_SRC_GPIO1		1

#define RT5640_JD_SRC_JD1_IN4P		2

#define RT5640_JD_SRC_JD2_IN4N		3

#define RT5640_JD_SRC_GPIO2		4

#define RT5640_JD_SRC_GPIO3		5

#define RT5640_JD_SRC_GPIO4		6

#define RT5640_OVCD_SF_0P5		0

#define RT5640_OVCD_SF_0P75		1

#define RT5640_OVCD_SF_1P0		2

#define RT5640_OVCD_SF_1P5		3

#endif /* __DT_RT5640_H */