From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Mon, 6 May 2024 03:02:30 +0200
Subject: Adding upstream version 4.19.249.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../devicetree/bindings/gpio/gpio-pca953x.txt      | 86 ++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpio/gpio-pca953x.txt

(limited to 'Documentation/devicetree/bindings/gpio/gpio-pca953x.txt')

diff --git a/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt b/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt
new file mode 100644
index 000000000..4e3c550e3
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt
@@ -0,0 +1,86 @@
+* NXP PCA953x I2C GPIO multiplexer
+
+Required properties:
+ - compatible: Has to contain one of the following:
+	nxp,pca9505
+	nxp,pca9534
+	nxp,pca9535
+	nxp,pca9536
+	nxp,pca9537
+	nxp,pca9538
+	nxp,pca9539
+	nxp,pca9554
+	nxp,pca9555
+	nxp,pca9556
+	nxp,pca9557
+	nxp,pca9574
+	nxp,pca9575
+	nxp,pca9698
+	nxp,pcal6524
+	nxp,pcal9555a
+	maxim,max7310
+	maxim,max7312
+	maxim,max7313
+	maxim,max7315
+	ti,pca6107
+	ti,pca9536
+	ti,tca6408
+	ti,tca6416
+	ti,tca6424
+	ti,tca9539
+	ti,tca9554
+	onnn,pca9654
+	exar,xra1202
+ - gpio-controller: if used as gpio expander.
+ - #gpio-cells: if used as gpio expander.
+ - interrupt-controller: if to be used as interrupt expander.
+ - #interrupt-cells: if to be used as interrupt expander.
+
+Optional properties:
+ - interrupts: interrupt specifier for the device's interrupt output.
+ - reset-gpios: GPIO specification for the RESET input. This is an
+		active low signal to the PCA953x.
+ - vcc-supply:	power supply regulator.
+
+Example:
+
+
+	gpio@20 {
+		compatible = "nxp,pca9505";
+		reg = <0x20>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_pca9505>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-parent = <&gpio3>;
+		interrupts = <23 IRQ_TYPE_LEVEL_LOW>;
+	};
+
+
+Example with Interrupts:
+
+
+	gpio99: gpio@22 {
+		compatible = "nxp,pcal6524";
+		reg = <0x22>;
+		interrupt-parent = <&gpio6>;
+		interrupts = <1 IRQ_TYPE_EDGE_FALLING>;	/* gpio6_161 */
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		vcc-supply = <&vdds_1v8_main>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		gpio-line-names =
+			"hdmi-ct-hpd", "hdmi.ls-oe", "p02", "p03", "vibra", "fault2", "p06", "p07",
+			"en-usb", "en-host1", "en-host2", "chg-int", "p14", "p15", "mic-int", "en-modem",
+			"shdn-hs-amp", "chg-status+red", "green", "blue", "en-esata", "fault1", "p26", "p27";
+	};
+
+	ts3a227@3b {
+		compatible = "ti,ts3a227e";
+		reg = <0x3b>;
+		interrupt-parent = <&gpio99>;
+		interrupts = <14 IRQ_TYPE_EDGE_RISING>;
+		ti,micbias = <0>;	/* 2.1V */
+	};
+
-- 
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