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

Add devicetree-bindings for the dmic, jack-detect source and overcurrent-
detect threshold settings.

The dmic bindings mirror the existing bindings for the rt5645.
The jd-src and ovcd bindings mirror the existing bindings for the rt5651.

Cc devicetree@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.1
Hans de Goede 2018-05-08 17:35:47 +02:00 committed by Mark Brown
parent 8e7a1f1f17
commit e9e7a3bdcd
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GPG Key ID: 24D68B725D5487D0
2 changed files with 60 additions and 0 deletions
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35
Documentation/devicetree/bindings/sound/rt5640.txt
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@ -22,6 +22,41 @@ Optional properties:
- 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

25
include/dt-bindings/sound/rt5640.h 100644
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@ -0,0 +1,25 @@
/* 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 */