This GPIO expander is used for controlling various muxes on the board.
By default select audio functionality over VIN6 by setting the P1
(vin6_sel_s0) pin to low.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
---
arch/arm/boot/dts/dra7-evm.dts | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index add77ac4f302..3694046c29eb 100644
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -438,6 +438,20 @@
pinctrl-names = "default";
pinctrl-0 = <&i2c2_pins>;
clock-frequency = <400000>;
+
+ pcf_hdmi: gpio@26 {
+ compatible = "nxp,pcf8575";
+ reg = <0x26>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ p1 {
+ /* vin6_sel_s0: high: VIN6, low: audio */
+ gpio-hog;
+ gpios = <1 GPIO_ACTIVE_HIGH>;
+ output-low;
+ line-name = "vin6_sel_s0";
+ };
+ };
};
&i2c3 {
--
2.5.0
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