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openwrt/target/linux/bcm27xx/patches-5.4/950-0943-dtoverlays-Add-overlay-for-the-PCA953x-family-of-GPI.patch
Álvaro Fernández Rojas f07e572f64 bcm27xx: import latest patches from the RPi foundation 
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2021-02-18 23:42:32 +01:00

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From 5a7c48622a4f7665039211414c9fe4a1914ae3eb Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Mon, 17 Aug 2020 18:11:47 +0100
Subject: [PATCH] dtoverlays: Add overlay for the PCA953x family of
GPIO expanders
Adds an overlay for configuring all the GPIO expanders supported
by the driver under GPIO_PCA953X.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
arch/arm/boot/dts/overlays/Makefile | 1 +
arch/arm/boot/dts/overlays/README | 36 +++
.../arm/boot/dts/overlays/pca953x-overlay.dts | 240 ++++++++++++++++++
3 files changed, 277 insertions(+)
create mode 100644 arch/arm/boot/dts/overlays/pca953x-overlay.dts
--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -119,6 +119,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
ov7251.dtbo \
ov9281.dtbo \
papirus.dtbo \
+ pca953x.dtbo \
pibell.dtbo \
piglow.dtbo \
piscreen.dtbo \
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -1873,6 +1873,42 @@ Params: panel Display
speed Display SPI bus speed
+Name: pca953x
+Info: TI PCA953x family of I2C GPIO expanders. Default is for NXP PCA9534.
+Load: dtoverlay=pca953x,<param>=<val>
+Params: addr I2C address of expander. Default 0x20.
+ pca6416 Select the NXP PCA6416 (16 bit)
+ pca9505 Select the NXP PCA9505 (40 bit)
+ pca9535 Select the NXP PCA9535 (16 bit)
+ pca9536 Select the NXP PCA9536 or TI PCA9536 (4 bit)
+ pca9537 Select the NXP PCA9537 (4 bit)
+ pca9538 Select the NXP PCA9538 (8 bit)
+ pca9539 Select the NXP PCA9539 (16 bit)
+ pca9554 Select the NXP PCA9554 (8 bit)
+ pca9555 Select the NXP PCA9555 (16 bit)
+ pca9556 Select the NXP PCA9556 (8 bit)
+ pca9557 Select the NXP PCA9557 (8 bit)
+ pca9574 Select the NXP PCA9574 (8 bit)
+ pca9575 Select the NXP PCA9575 (16 bit)
+ pca9698 Select the NXP PCA9698 (40 bit)
+ pca16416 Select the NXP PCA16416 (16 bit)
+ pca16524 Select the NXP PCA16524 (24 bit)
+ pca19555a Select the NXP PCA19555A (16 bit)
+ max7310 Select the Maxim MAX7310 (8 bit)
+ max7312 Select the Maxim MAX7312 (16 bit)
+ max7313 Select the Maxim MAX7313 (16 bit)
+ max7315 Select the Maxim MAX7315 (8 bit)
+ pca6107 Select the TI PCA6107 (8 bit)
+ tca6408 Select the TI TCA6408 (8 bit)
+ tca6416 Select the TI TCA6416 (16 bit)
+ tca6424 Select the TI TCA6424 (24 bit)
+ tca9539 Select the TI TCA9539 (16 bit)
+ tca9554 Select the TI TCA9554 (8 bit)
+ cat9554 Select the Onnn CAT9554 (8 bit)
+ pca9654 Select the Onnn PCA9654 (8 bit)
+ xra1202 Select the Exar XRA1202 (8 bit)
+
+
[ The pcf2127-rtc overlay has been deleted. See i2c-rtc. ]
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/pca953x-overlay.dts
@@ -0,0 +1,240 @@
+// Definitions for NXP PCA953x family of I2C GPIO controllers on ARM I2C bus.
+/dts-v1/;
+/plugin/;
+
+/{
+ compatible = "brcm,bcm2835";
+
+ fragment@0 {
+ target = <&i2c_arm>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ pca: pca@20 {
+ compatible = "nxp,pca9534";
+ reg = <0x20>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ status = "okay";
+ };
+ };
+ };
+
+ fragment@1 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "nxp,pca6416";
+ };
+ };
+ fragment@2 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "nxp,pca9505";
+ };
+ };
+ fragment@3 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "nxp,pca9535";
+ };
+ };
+ fragment@4 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "nxp,pca9536";
+ };
+ };
+ fragment@5 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "nxp,pca9537";
+ };
+ };
+ fragment@6 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "nxp,pca9538";
+ };
+ };
+ fragment@7 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "nxp,pca9539";
+ };
+ };
+ fragment@8 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "nxp,pca9554";
+ };
+ };
+ fragment@9 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "nxp,pca9555";
+ };
+ };
+ fragment@10 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "nxp,pca9556";
+ };
+ };
+ fragment@11 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "nxp,pca9557";
+ };
+ };
+ fragment@12 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "nxp,pca9574";
+ };
+ };
+ fragment@13 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "nxp,pca9575";
+ };
+ };
+ fragment@14 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "nxp,pca9698";
+ };
+ };
+ fragment@15 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "nxp,pca16416";
+ };
+ };
+ fragment@16 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "nxp,pca16524";
+ };
+ };
+ fragment@17 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "nxp,pca19555a";
+ };
+ };
+ fragment@18 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "maxim,max7310";
+ };
+ };
+ fragment@19 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "maxim,max7312";
+ };
+ };
+ fragment@20 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "maxim,max7313";
+ };
+ };
+ fragment@21 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "maxim,max7315";
+ };
+ };
+ fragment@22 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "ti,pca6107";
+ };
+ };
+ fragment@23 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "ti,tca6408";
+ };
+ };
+ fragment@24 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "ti,tca6416";
+ };
+ };
+ fragment@25 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "ti,tca6424";
+ };
+ };
+ fragment@26 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "ti,tca9539";
+ };
+ };
+ fragment@27 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "ti,tca9554";
+ };
+ };
+ fragment@28 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "onnn,cat9554";
+ };
+ };
+ fragment@29 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "onnn,pca9654";
+ };
+ };
+ fragment@30 {
+ target = <&pca>;
+ __dormant__ {
+ compatible = "exar,xra1202";
+ };
+ };
+
+ __overrides__ {
+ addr = <&pca>,"reg:0";
+ pca6416 = <0>, "+1";
+ pca9505 = <0>, "+2";
+ pca9535 = <0>, "+3";
+ pca9536 = <0>, "+4";
+ pca9537 = <0>, "+5";
+ pca9538 = <0>, "+6";
+ pca9539 = <0>, "+7";
+ pca9554 = <0>, "+8";
+ pca9555 = <0>, "+9";
+ pca9556 = <0>, "+10";
+ pca9557 = <0>, "+11";
+ pca9574 = <0>, "+12";
+ pca9575 = <0>, "+13";
+ pca9698 = <0>, "+14";
+ pca16416 = <0>, "+15";
+ pca16524 = <0>, "+16";
+ pca19555a = <0>, "+17";
+ max7310 = <0>, "+18";
+ max7312 = <0>, "+19";
+ max7313 = <0>, "+20";
+ max7315 = <0>, "+21";
+ pca6107 = <0>, "+22";
+ tca6408 = <0>, "+23";
+ tca6416 = <0>, "+24";
+ tca6424 = <0>, "+25";
+ tca9539 = <0>, "+26";
+ tca9554 = <0>, "+27";
+ cat9554 = <0>, "+28";
+ pca9654 = <0>, "+29";
+ xra1202 = <0>, "+30";
+ };
+};
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