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f07e572f64
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>
316 lines
7.4 KiB
Diff
316 lines
7.4 KiB
Diff
From 5a7c48622a4f7665039211414c9fe4a1914ae3eb Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Mon, 17 Aug 2020 18:11:47 +0100
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Subject: [PATCH] dtoverlays: Add overlay for the PCA953x family of
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GPIO expanders
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Adds an overlay for configuring all the GPIO expanders supported
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by the driver under GPIO_PCA953X.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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arch/arm/boot/dts/overlays/Makefile | 1 +
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arch/arm/boot/dts/overlays/README | 36 +++
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.../arm/boot/dts/overlays/pca953x-overlay.dts | 240 ++++++++++++++++++
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3 files changed, 277 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/pca953x-overlay.dts
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--- a/arch/arm/boot/dts/overlays/Makefile
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+++ b/arch/arm/boot/dts/overlays/Makefile
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@@ -119,6 +119,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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ov7251.dtbo \
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ov9281.dtbo \
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papirus.dtbo \
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+ pca953x.dtbo \
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pibell.dtbo \
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piglow.dtbo \
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piscreen.dtbo \
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -1873,6 +1873,42 @@ Params: panel Display
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speed Display SPI bus speed
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+Name: pca953x
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+Info: TI PCA953x family of I2C GPIO expanders. Default is for NXP PCA9534.
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+Load: dtoverlay=pca953x,<param>=<val>
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+Params: addr I2C address of expander. Default 0x20.
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+ pca6416 Select the NXP PCA6416 (16 bit)
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+ pca9505 Select the NXP PCA9505 (40 bit)
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+ pca9535 Select the NXP PCA9535 (16 bit)
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+ pca9536 Select the NXP PCA9536 or TI PCA9536 (4 bit)
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+ pca9537 Select the NXP PCA9537 (4 bit)
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+ pca9538 Select the NXP PCA9538 (8 bit)
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+ pca9539 Select the NXP PCA9539 (16 bit)
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+ pca9554 Select the NXP PCA9554 (8 bit)
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+ pca9555 Select the NXP PCA9555 (16 bit)
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+ pca9556 Select the NXP PCA9556 (8 bit)
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+ pca9557 Select the NXP PCA9557 (8 bit)
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+ pca9574 Select the NXP PCA9574 (8 bit)
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+ pca9575 Select the NXP PCA9575 (16 bit)
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+ pca9698 Select the NXP PCA9698 (40 bit)
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+ pca16416 Select the NXP PCA16416 (16 bit)
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+ pca16524 Select the NXP PCA16524 (24 bit)
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+ pca19555a Select the NXP PCA19555A (16 bit)
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+ max7310 Select the Maxim MAX7310 (8 bit)
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+ max7312 Select the Maxim MAX7312 (16 bit)
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+ max7313 Select the Maxim MAX7313 (16 bit)
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+ max7315 Select the Maxim MAX7315 (8 bit)
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+ pca6107 Select the TI PCA6107 (8 bit)
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+ tca6408 Select the TI TCA6408 (8 bit)
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+ tca6416 Select the TI TCA6416 (16 bit)
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+ tca6424 Select the TI TCA6424 (24 bit)
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+ tca9539 Select the TI TCA9539 (16 bit)
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+ tca9554 Select the TI TCA9554 (8 bit)
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+ cat9554 Select the Onnn CAT9554 (8 bit)
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+ pca9654 Select the Onnn PCA9654 (8 bit)
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+ xra1202 Select the Exar XRA1202 (8 bit)
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+
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+
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[ The pcf2127-rtc overlay has been deleted. See i2c-rtc. ]
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/pca953x-overlay.dts
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@@ -0,0 +1,240 @@
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+// Definitions for NXP PCA953x family of I2C GPIO controllers on ARM I2C bus.
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+/dts-v1/;
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+/plugin/;
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+
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+/{
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+ compatible = "brcm,bcm2835";
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+
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+ fragment@0 {
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+ target = <&i2c_arm>;
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+ __overlay__ {
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ status = "okay";
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+
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+ pca: pca@20 {
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+ compatible = "nxp,pca9534";
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+ reg = <0x20>;
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+ gpio-controller;
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+ #gpio-cells = <2>;
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+
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+ status = "okay";
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+ };
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+ };
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+ };
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+
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+ fragment@1 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "nxp,pca6416";
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+ };
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+ };
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+ fragment@2 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "nxp,pca9505";
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+ };
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+ };
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+ fragment@3 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "nxp,pca9535";
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+ };
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+ };
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+ fragment@4 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "nxp,pca9536";
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+ };
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+ };
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+ fragment@5 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "nxp,pca9537";
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+ };
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+ };
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+ fragment@6 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "nxp,pca9538";
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+ };
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+ };
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+ fragment@7 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "nxp,pca9539";
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+ };
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+ };
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+ fragment@8 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "nxp,pca9554";
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+ };
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+ };
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+ fragment@9 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "nxp,pca9555";
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+ };
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+ };
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+ fragment@10 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "nxp,pca9556";
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+ };
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+ };
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+ fragment@11 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "nxp,pca9557";
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+ };
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+ };
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+ fragment@12 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "nxp,pca9574";
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+ };
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+ };
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+ fragment@13 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "nxp,pca9575";
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+ };
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+ };
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+ fragment@14 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "nxp,pca9698";
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+ };
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+ };
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+ fragment@15 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "nxp,pca16416";
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+ };
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+ };
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+ fragment@16 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "nxp,pca16524";
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+ };
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+ };
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+ fragment@17 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "nxp,pca19555a";
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+ };
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+ };
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+ fragment@18 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "maxim,max7310";
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+ };
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+ };
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+ fragment@19 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "maxim,max7312";
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+ };
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+ };
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+ fragment@20 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "maxim,max7313";
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+ };
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+ };
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+ fragment@21 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "maxim,max7315";
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+ };
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+ };
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+ fragment@22 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "ti,pca6107";
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+ };
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+ };
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+ fragment@23 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "ti,tca6408";
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+ };
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+ };
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+ fragment@24 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "ti,tca6416";
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+ };
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+ };
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+ fragment@25 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "ti,tca6424";
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+ };
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+ };
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+ fragment@26 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "ti,tca9539";
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+ };
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+ };
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+ fragment@27 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "ti,tca9554";
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+ };
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+ };
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+ fragment@28 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "onnn,cat9554";
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+ };
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+ };
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+ fragment@29 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "onnn,pca9654";
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+ };
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+ };
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+ fragment@30 {
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+ target = <&pca>;
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+ __dormant__ {
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+ compatible = "exar,xra1202";
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+ };
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+ };
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+
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+ __overrides__ {
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+ addr = <&pca>,"reg:0";
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+ pca6416 = <0>, "+1";
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+ pca9505 = <0>, "+2";
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+ pca9535 = <0>, "+3";
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+ pca9536 = <0>, "+4";
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+ pca9537 = <0>, "+5";
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+ pca9538 = <0>, "+6";
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+ pca9539 = <0>, "+7";
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+ pca9554 = <0>, "+8";
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+ pca9555 = <0>, "+9";
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+ pca9556 = <0>, "+10";
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+ pca9557 = <0>, "+11";
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+ pca9574 = <0>, "+12";
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+ pca9575 = <0>, "+13";
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+ pca9698 = <0>, "+14";
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+ pca16416 = <0>, "+15";
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+ pca16524 = <0>, "+16";
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+ pca19555a = <0>, "+17";
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+ max7310 = <0>, "+18";
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+ max7312 = <0>, "+19";
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+ max7313 = <0>, "+20";
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+ max7315 = <0>, "+21";
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+ pca6107 = <0>, "+22";
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+ tca6408 = <0>, "+23";
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+ tca6416 = <0>, "+24";
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+ tca6424 = <0>, "+25";
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+ tca9539 = <0>, "+26";
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+ tca9554 = <0>, "+27";
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+ cat9554 = <0>, "+28";
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+ pca9654 = <0>, "+29";
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+ xra1202 = <0>, "+30";
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+ };
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+};
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