From: Camel Guo <camelg@xxxxxxxx>
Add properties for configuring the General Purpose Input Output (GPIO).
There are 2 settings for GPIO, configuration and the output drive type.
Signed-off-by: Camel Guo <camelg@xxxxxxxx>
Acked-by: Dan Murphy <dmurphy@xxxxxx>
---
v4:
- Rebase
v3:
- Fix typo
- Add Acked-By from Dan
.../bindings/sound/tlv320adcx140.yaml | 44 +++++++++++++++++++
1 file changed, 44 insertions(+)
diff --git a/Documentation/devicetree/bindings/sound/tlv320adcx140.yaml b/Documentation/devicetree/bindings/sound/tlv320adcx140.yaml
index e79f8d1891e4..798b366fe6d1 100644
--- a/Documentation/devicetree/bindings/sound/tlv320adcx140.yaml
+++ b/Documentation/devicetree/bindings/sound/tlv320adcx140.yaml
@@ -140,6 +140,49 @@ patternProperties:
4d - Drive weak low and active high
5d - Drive Hi-Z and active high
+ ti,gpio-config:
+ description: |
+ Defines the configuration and output drive for the General Purpose
+ Input and Output pin (GPIO1). Its value is a pair, the first value is for
+ the configuration type and the second value is for the output drive
+ type. The array is defined as <GPIO1_CFG GPIO1_DRV>
+
+ configuration for the GPIO pin can be one of the following:
+ 0 - disabled
+ 1 - GPIO1 is configured as a general-purpose output (GPO)
+ 2 - (default) GPIO1 is configured as a device interrupt output (IRQ)
+ 3 - GPIO1 is configured as a secondary ASI output (SDOUT2)
+ 4 - GPIO1 is configured as a PDM clock output (PDMCLK)
+ 8 - GPIO1 is configured as an input to control when MICBIAS turns on or
+ off (MICBIAS_EN)
+ 9 - GPIO1 is configured as a general-purpose input (GPI)
+ 10 - GPIO1 is configured as a master clock input (MCLK)
+ 11 - GPIO1 is configured as an ASI input for daisy-chain (SDIN)
+ 12 - GPIO1 is configured as a PDM data input for channel 1 and channel 2
+ (PDMDIN1)
+ 13 - GPIO1 is configured as a PDM data input for channel 3 and channel 4
+ (PDMDIN2)
+ 14 - GPIO1 is configured as a PDM data input for channel 5 and channel 6
+ (PDMDIN3)
+ 15 - GPIO1 is configured as a PDM data input for channel 7 and channel 8
+ (PDMDIN4)
+
+ output drive type for the GPIO pin can be one of the following:
+ 0 - Hi-Z output
+ 1 - Drive active low and active high
+ 2 - (default) Drive active low and weak high
+ 3 - Drive active low and Hi-Z
+ 4 - Drive weak low and active high
+ 5 - Drive Hi-Z and active high
+
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32-array
+ - minItems: 2
+ maxItems: 2
+ items:
+ maximum: 15
+ default: [2, 2]
+
required:
- compatible
- reg
@@ -156,6 +199,7 @@ examples:
ti,mic-bias-source = <6>;
ti,pdm-edge-select = <0 1 0 1>;
ti,gpi-config = <4 5 6 7>;
+ ti,gpio-config = <10 2>;
ti,gpo-config-1 = <0 0>;
ti,gpo-config-2 = <0 0>;
reset-gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
--
2.20.1
