2b1c6b21b5
As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Also adds support for Raspberry Pi Compute Module 3 (untested). Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
791 lines
26 KiB
Diff
791 lines
26 KiB
Diff
From bd7c2eac2ada8f60058768b00935cdfe010720a5 Mon Sep 17 00:00:00 2001
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From: wavelet2 <a3d35232@btinternet.com>
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Date: Fri, 19 Aug 2016 09:32:53 +0100
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Subject: [PATCH] Overlay for Microchip MCP23S08/17 SPI gpio expanders (#1566)
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Added Overlay for Microchip MCP23S08/17 SPI gpio expanders
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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 | 24 +
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arch/arm/boot/dts/overlays/mcp23s17-overlay.dts | 732 ++++++++++++++++++++++++
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3 files changed, 757 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/mcp23s17-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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@@ -49,6 +49,7 @@ dtbo-$(RPI_DT_OVERLAYS) += justboom-dac.
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dtbo-$(RPI_DT_OVERLAYS) += justboom-digi.dtbo
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dtbo-$(RPI_DT_OVERLAYS) += lirc-rpi.dtbo
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dtbo-$(RPI_DT_OVERLAYS) += mcp23017.dtbo
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+dtbo-$(RPI_DT_OVERLAYS) += mcp23s17.dtbo
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dtbo-$(RPI_DT_OVERLAYS) += mcp2515-can0.dtbo
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dtbo-$(RPI_DT_OVERLAYS) += mcp2515-can1.dtbo
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dtbo-$(RPI_DT_OVERLAYS) += mmc.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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@@ -628,6 +628,30 @@ Params: gpiopin Gpio pin
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addr I2C address of the MCP23017 (default: 0x20)
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+Name: mcp23s17
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+Info: Configures the MCP23S08/17 SPI GPIO expanders.
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+ If devices are present on SPI1 or SPI2, those interfaces must be enabled
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+ with one of the spi1-1/2/3cs and/or spi2-1/2/3cs overlays.
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+ If interrupts are enabled for a device on a given CS# on a SPI bus, that
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+ device must be the only one present on that SPI bus/CS#.
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+Load: dtoverlay=mcp23s17,<param>=<val>
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+Params: s08-spi<n>-<m>-present 4-bit integer, bitmap indicating MCP23S08
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+ devices present on SPI<n>, CS#<m>
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+
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+ s17-spi<n>-<m>-present 8-bit integer, bitmap indicating MCP23S17
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+ devices present on SPI<n>, CS#<m>
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+
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+ s08-spi<n>-<m>-int-gpio integer, enables interrupts on a single
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+ MCP23S08 device on SPI<n>, CS#<m>, specifies
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+ the GPIO pin to which INT output of MCP23S08
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+ is connected.
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+
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+ s17-spi<n>-<m>-int-gpio integer, enables mirrored interrupts on a
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+ single MCP23S17 device on SPI<n>, CS#<m>,
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+ specifies the GPIO pin to which either INTA
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+ or INTB output of MCP23S17 is connected.
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+
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+
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Name: mcp2515-can0
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Info: Configures the MCP2515 CAN controller on spi0.0
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Load: dtoverlay=mcp2515-can0,<param>=<val>
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/mcp23s17-overlay.dts
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@@ -0,0 +1,732 @@
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+// Overlay for MCP23S08/17 GPIO Extenders from Microchip Semiconductor
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+
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+// dtparams:
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+// s08-spi<n>-<m>-present - 4-bit integer, bitmap indicating MCP23S08 devices present on SPI<n>, CS#<m>.
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+// s17-spi<n>-<m>-present - 8-bit integer, bitmap indicating MCP23S17 devices present on SPI<n>, CS#<m>.
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+// s08-spi<n>-<m>-int-gpio - integer, enables interrupts on a single MCP23S08 device on SPI<n>, CS#<m>, specifies the GPIO pin to which INT output is connected.
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+// s17-spi<n>-<m>-int-gpio - integer, enables mirrored interrupts on a single MCP23S17 device on SPI<n>, CS#<m>, specifies the GPIO pin to which either INTA or INTB output is connected.
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+//
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+// If devices are present on SPI1 or SPI2, those interfaces must be enabled with one of the spi1-1/2/3cs and/or spi2-1/2/3cs overlays.
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+// If interrupts are enabled for a device on a given CS# on a SPI bus, that device must be the only one present on that SPI bus/CS#.
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+//
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+// Example 1: A single MCP23S17 device on SPI0, CS#0 with its SPI addr set to 0 and INTA output connected to GPIO25:
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+// dtoverlay=mcp23s17:s17-spi0-0-present=1,s17-spi0-0-int-gpio=25
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+//
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+// Example 2: Two MCP23S08 devices on SPI1, CS#0 with their addrs set to 2 and 3. Three MCP23S17 devices on SPI1, CS#1 with their addrs set to 0, 1 and 7:
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+// dtoverlay=spi1-2cs
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+// dtoverlay=mcp23s17:s08-spi1-0-present=12,s17-spi1-1-present=131
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+
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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", "brcm,bcm2708", "brcm,bcm2709";
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+
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+ // disable spi-dev on spi0.0
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+ fragment@0 {
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+ target = <&spidev0>;
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+ __dormant__ {
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+ status = "disabled";
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+ };
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+ };
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+
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+ // disable spi-dev on spi0.1
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+ fragment@1 {
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+ target = <&spidev1>;
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+ __dormant__ {
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+ status = "disabled";
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+ };
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+ };
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+
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+ // disable spi-dev on spi1.0
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+ fragment@2 {
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+ target-path = "spi1/spidev@0";
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+ __dormant__ {
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+ status = "disabled";
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+ };
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+ };
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+
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+ // disable spi-dev on spi1.1
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+ fragment@3 {
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+ target-path = "spi1/spidev@1";
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+ __dormant__ {
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+ status = "disabled";
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+ };
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+ };
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+
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+ // disable spi-dev on spi1.2
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+ fragment@4 {
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+ target-path = "spi1/spidev@2";
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+ __dormant__ {
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+ status = "disabled";
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+ };
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+ };
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+
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+ // disable spi-dev on spi2.0
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+ fragment@5 {
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+ target-path = "spi2/spidev@0";
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+ __dormant__ {
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+ status = "disabled";
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+ };
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+ };
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+
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+ // disable spi-dev on spi2.1
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+ fragment@6 {
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+ target-path = "spi2/spidev@1";
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+ __dormant__ {
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+ status = "disabled";
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+ };
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+ };
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+
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+ // disable spi-dev on spi2.2
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+ fragment@7 {
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+ target-path = "spi2/spidev@2";
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+ __dormant__ {
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+ status = "disabled";
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+ };
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+ };
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+
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+ // enable one or more mcp23s08s on spi0.0
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+ fragment@8 {
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+ target = <&spi0>;
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+ __dormant__ {
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+ status = "okay";
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ mcp23s08_00: mcp23s08@0 {
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+ compatible = "microchip,mcp23s08";
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+ gpio-controller;
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+ #gpio-cells = <2>;
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+ microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s08-spi0-0-present parameter */
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+ reg = <0>;
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+ spi-max-frequency = <500000>;
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+ status = "okay";
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+ #interrupt-cells=<2>;
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+ interrupts = <0 2>; /* 1st word overwritten by mcp23s08-spi0-0-int-gpio parameter */
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+ };
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+ };
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+ };
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+
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+ // enable one or more mcp23s08s on spi0.1
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+ fragment@9 {
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+ target = <&spi0>;
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+ __dormant__ {
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+ status = "okay";
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ mcp23s08_01: mcp23s08@1 {
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+ compatible = "microchip,mcp23s08";
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+ gpio-controller;
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+ #gpio-cells = <2>;
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+ microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s08-spi0-1-present parameter */
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+ reg = <1>;
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+ spi-max-frequency = <500000>;
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+ status = "okay";
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+ #interrupt-cells=<2>;
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+ interrupts = <0 2>; /* 1st word overwritten by mcp23s08-spi0-1-int-gpio parameter */
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+ };
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+ };
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+ };
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+
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+ // enable one or more mcp23s08s on spi1.0
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+ fragment@10 {
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+ target = <&spi1>;
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+ __dormant__ {
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+ status = "okay";
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ mcp23s08_10: mcp23s08@0 {
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+ compatible = "microchip,mcp23s08";
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+ gpio-controller;
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+ #gpio-cells = <2>;
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+ microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s08-spi1-0-present parameter */
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+ reg = <0>;
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+ spi-max-frequency = <500000>;
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+ status = "okay";
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+ #interrupt-cells=<2>;
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+ interrupts = <0 2>; /* 1st word overwritten by mcp23s08-spi1-0-int-gpio parameter */
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+ };
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+ };
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+ };
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+
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+ // enable one or more mcp23s08s on spi1.1
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+ fragment@11 {
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+ target = <&spi1>;
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+ __dormant__ {
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+ status = "okay";
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ mcp23s08_11: mcp23s08@1 {
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+ compatible = "microchip,mcp23s08";
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+ gpio-controller;
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+ #gpio-cells = <2>;
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+ microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s08-spi1-1-present parameter */
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+ reg = <1>;
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+ spi-max-frequency = <500000>;
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+ status = "okay";
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+ #interrupt-cells=<2>;
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+ interrupts = <0 2>; /* 1st word overwritten by mcp23s08-spi1-1-int-gpio parameter */
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+ };
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+ };
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+ };
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+
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+ // enable one or more mcp23s08s on spi1.2
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+ fragment@12 {
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+ target = <&spi1>;
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+ __dormant__ {
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+ status = "okay";
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ mcp23s08_12: mcp23s08@2 {
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+ compatible = "microchip,mcp23s08";
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+ gpio-controller;
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+ #gpio-cells = <2>;
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+ microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s08-spi1-2-present parameter */
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+ reg = <2>;
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+ spi-max-frequency = <500000>;
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+ status = "okay";
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+ #interrupt-cells=<2>;
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+ interrupts = <0 2>; /* 1st word overwritten by mcp23s08-spi1-2-int-gpio parameter */
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+ };
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+ };
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+ };
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+
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+ // enable one or more mcp23s08s on spi2.0
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+ fragment@13 {
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+ target = <&spi2>;
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+ __dormant__ {
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+ status = "okay";
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ mcp23s08_20: mcp23s08@0 {
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+ compatible = "microchip,mcp23s08";
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+ gpio-controller;
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+ #gpio-cells = <2>;
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+ microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s08-spi2-0-present parameter */
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+ reg = <0>;
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+ spi-max-frequency = <500000>;
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+ status = "okay";
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+ #interrupt-cells=<2>;
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+ interrupts = <0 2>; /* 1st word overwritten by mcp23s08-spi2-0-int-gpio parameter */
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+ };
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+ };
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+ };
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+
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+ // enable one or more mcp23s08s on spi2.1
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+ fragment@14 {
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+ target = <&spi2>;
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+ __dormant__ {
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+ status = "okay";
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ mcp23s08_21: mcp23s08@1 {
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+ compatible = "microchip,mcp23s08";
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+ gpio-controller;
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+ #gpio-cells = <2>;
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+ microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s08-spi2-1-present parameter */
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+ reg = <1>;
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+ spi-max-frequency = <500000>;
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+ status = "okay";
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+ #interrupt-cells=<2>;
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+ interrupts = <0 2>; /* 1st word overwritten by mcp23s08-spi2-1-int-gpio parameter */
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+ };
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+ };
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+ };
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+
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+ // enable one or more mcp23s08s on spi2.2
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+ fragment@15 {
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+ target = <&spi2>;
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+ __dormant__ {
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+ status = "okay";
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ mcp23s08_22: mcp23s08@2 {
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+ compatible = "microchip,mcp23s08";
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+ gpio-controller;
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+ #gpio-cells = <2>;
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+ microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s08-spi2-2-present parameter */
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+ reg = <2>;
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+ spi-max-frequency = <500000>;
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+ status = "okay";
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+ #interrupt-cells=<2>;
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+ interrupts = <0 2>; /* 1st word overwritten by mcp23s08-spi2-2-int-gpio parameter */
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+ };
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+ };
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+ };
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+
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+ // enable one or more mcp23s17s on spi0.0
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+ fragment@16 {
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+ target = <&spi0>;
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+ __dormant__ {
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+ status = "okay";
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ mcp23s17_00: mcp23s17@0 {
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+ compatible = "microchip,mcp23s17";
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+ gpio-controller;
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+ #gpio-cells = <2>;
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+ microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s17-spi0-0-present parameter */
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+ reg = <0>;
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+ spi-max-frequency = <500000>;
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+ status = "okay";
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+ #interrupt-cells=<2>;
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+ interrupts = <0 2>; /* 1st word overwritten by mcp23s17-spi0-0-int-gpio parameter */
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+ };
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+ };
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+ };
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+
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+ // enable one or more mcp23s17s on spi0.1
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+ fragment@17 {
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+ target = <&spi0>;
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+ __dormant__ {
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+ status = "okay";
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ mcp23s17_01: mcp23s17@1 {
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+ compatible = "microchip,mcp23s17";
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+ gpio-controller;
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+ #gpio-cells = <2>;
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+ microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s17-spi0-1-present parameter */
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+ reg = <1>;
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+ spi-max-frequency = <500000>;
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+ status = "okay";
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+ #interrupt-cells=<2>;
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+ interrupts = <0 2>; /* 1st word overwritten by mcp23s17-spi0-1-int-gpio parameter */
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+ };
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+ };
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+ };
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+
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+ // enable one or more mcp23s17s on spi1.0
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+ fragment@18 {
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+ target = <&spi1>;
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+ __dormant__ {
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+ status = "okay";
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ mcp23s17_10: mcp23s17@0 {
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+ compatible = "microchip,mcp23s17";
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+ gpio-controller;
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+ #gpio-cells = <2>;
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+ microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s17-spi1-0-present parameter */
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+ reg = <0>;
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+ spi-max-frequency = <500000>;
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+ status = "okay";
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+ #interrupt-cells=<2>;
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+ interrupts = <0 2>; /* 1st word overwritten by mcp23s17-spi1-0-int-gpio parameter */
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+ };
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+ };
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+ };
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+
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+ // enable one or more mcp23s17s on spi1.1
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+ fragment@19 {
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+ target = <&spi1>;
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+ __dormant__ {
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+ status = "okay";
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ mcp23s17_11: mcp23s17@1 {
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+ compatible = "microchip,mcp23s17";
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+ gpio-controller;
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+ #gpio-cells = <2>;
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+ microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s17-spi1-1-present parameter */
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+ reg = <1>;
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+ spi-max-frequency = <500000>;
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+ status = "okay";
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+ #interrupt-cells=<2>;
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+ interrupts = <0 2>; /* 1st word overwritten by mcp23s17-spi1-1-int-gpio parameter */
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+ };
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+ };
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+ };
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+
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+ // enable one or more mcp23s17s on spi1.2
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+ fragment@20 {
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+ target = <&spi1>;
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+ __dormant__ {
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+ status = "okay";
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ mcp23s17_12: mcp23s17@2 {
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+ compatible = "microchip,mcp23s17";
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+ gpio-controller;
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+ #gpio-cells = <2>;
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+ microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s17-spi1-2-present parameter */
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+ reg = <2>;
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+ spi-max-frequency = <500000>;
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+ status = "okay";
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+ #interrupt-cells=<2>;
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+ interrupts = <0 2>; /* 1st word overwritten by mcp23s17-spi1-2-int-gpio parameter */
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+ };
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+ };
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+ };
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+
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+ // enable one or more mcp23s17s on spi2.0
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+ fragment@21 {
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+ target = <&spi2>;
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+ __dormant__ {
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+ status = "okay";
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+ #address-cells = <1>;
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|
+ #size-cells = <0>;
|
|
+ mcp23s17_20: mcp23s17@0 {
|
|
+ compatible = "microchip,mcp23s17";
|
|
+ gpio-controller;
|
|
+ #gpio-cells = <2>;
|
|
+ microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s17-spi2-0-present parameter */
|
|
+ reg = <0>;
|
|
+ spi-max-frequency = <500000>;
|
|
+ status = "okay";
|
|
+ #interrupt-cells=<2>;
|
|
+ interrupts = <0 2>; /* 1st word overwritten by mcp23s17-spi2-0-int-gpio parameter */
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // enable one or more mcp23s17s on spi2.1
|
|
+ fragment@22 {
|
|
+ target = <&spi2>;
|
|
+ __dormant__ {
|
|
+ status = "okay";
|
|
+ #address-cells = <1>;
|
|
+ #size-cells = <0>;
|
|
+ mcp23s17_21: mcp23s17@1 {
|
|
+ compatible = "microchip,mcp23s17";
|
|
+ gpio-controller;
|
|
+ #gpio-cells = <2>;
|
|
+ microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s17-spi2-1-present parameter */
|
|
+ reg = <1>;
|
|
+ spi-max-frequency = <500000>;
|
|
+ status = "okay";
|
|
+ #interrupt-cells=<2>;
|
|
+ interrupts = <0 2>; /* 1st word overwritten by mcp23s17-spi2-1-int-gpio parameter */
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // enable one or more mcp23s17s on spi2.2
|
|
+ fragment@23 {
|
|
+ target = <&spi2>;
|
|
+ __dormant__ {
|
|
+ status = "okay";
|
|
+ #address-cells = <1>;
|
|
+ #size-cells = <0>;
|
|
+ mcp23s17_22: mcp23s17@2 {
|
|
+ compatible = "microchip,mcp23s17";
|
|
+ gpio-controller;
|
|
+ #gpio-cells = <2>;
|
|
+ microchip,spi-present-mask = <0x00>; /* overwritten by mcp23s17-spi2-2-present parameter */
|
|
+ reg = <2>;
|
|
+ spi-max-frequency = <500000>;
|
|
+ status = "okay";
|
|
+ #interrupt-cells=<2>;
|
|
+ interrupts = <0 2>; /* 1st word overwritten by mcp23s17-spi2-2-int-gpio parameter */
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi0.0 as a input with no pull-up/down
|
|
+ fragment@24 {
|
|
+ target = <&gpio>;
|
|
+ __dormant__ {
|
|
+ spi0_0_int_pins: spi0_0_int_pins {
|
|
+ brcm,pins = <0>; /* overwritten by mcp23s08/17-spi0-0-int-gpio parameter */
|
|
+ brcm,function = <0>;
|
|
+ brcm,pull = <0>;
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi0.1 as a input with no pull-up/down
|
|
+ fragment@25 {
|
|
+ target = <&gpio>;
|
|
+ __dormant__ {
|
|
+ spi0_1_int_pins: spi0_1_int_pins {
|
|
+ brcm,pins = <0>; /* overwritten by mcp23s08/17-spi0-1-int-gpio parameter */
|
|
+ brcm,function = <0>;
|
|
+ brcm,pull = <0>;
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi1.0 as a input with no pull-up/down
|
|
+ fragment@26 {
|
|
+ target = <&gpio>;
|
|
+ __dormant__ {
|
|
+ spi1_0_int_pins: spi1_0_int_pins {
|
|
+ brcm,pins = <0>; /* overwritten by mcp23s08/17-spi1-0-int-gpio parameter */
|
|
+ brcm,function = <0>;
|
|
+ brcm,pull = <0>;
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi1.1 as a input with no pull-up/down
|
|
+ fragment@27 {
|
|
+ target = <&gpio>;
|
|
+ __dormant__ {
|
|
+ spi1_1_int_pins: spi1_1_int_pins {
|
|
+ brcm,pins = <0>; /* overwritten by mcp23s08/17-spi1-1-int-gpio parameter */
|
|
+ brcm,function = <0>;
|
|
+ brcm,pull = <0>;
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi1.2 as a input with no pull-up/down
|
|
+ fragment@28 {
|
|
+ target = <&gpio>;
|
|
+ __dormant__ {
|
|
+ spi1_2_int_pins: spi1_2_int_pins {
|
|
+ brcm,pins = <0>; /* overwritten by mcp23s08/17-spi1-2-int-gpio parameter */
|
|
+ brcm,function = <0>;
|
|
+ brcm,pull = <0>;
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi2.0 as a input with no pull-up/down
|
|
+ fragment@29 {
|
|
+ target = <&gpio>;
|
|
+ __dormant__ {
|
|
+ spi2_0_int_pins: spi2_0_int_pins {
|
|
+ brcm,pins = <0>; /* overwritten by mcp23s08/17-spi2-0-int-gpio parameter */
|
|
+ brcm,function = <0>;
|
|
+ brcm,pull = <0>;
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi2.1 as a input with no pull-up/down
|
|
+ fragment@30 {
|
|
+ target = <&gpio>;
|
|
+ __dormant__ {
|
|
+ spi2_1_int_pins: spi2_1_int_pins {
|
|
+ brcm,pins = <0>; /* overwritten by mcp23s08/17-spi2-1-int-gpio parameter */
|
|
+ brcm,function = <0>;
|
|
+ brcm,pull = <0>;
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi2.2 as a input with no pull-up/down
|
|
+ fragment@31 {
|
|
+ target = <&gpio>;
|
|
+ __dormant__ {
|
|
+ spi2_2_int_pins: spi2_2_int_pins {
|
|
+ brcm,pins = <0>; /* overwritten by mcp23s08/17-spi2-2-int-gpio parameter */
|
|
+ brcm,function = <0>;
|
|
+ brcm,pull = <0>;
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Enable interrupts for a mcp23s08 on spi0.0.
|
|
+ // Use default active low interrupt signalling.
|
|
+ fragment@32 {
|
|
+ target = <&mcp23s08_00>;
|
|
+ __dormant__ {
|
|
+ interrupt-parent = <&gpio>;
|
|
+ interrupt-controller;
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Enable interrupts for a mcp23s08 on spi0.1.
|
|
+ // Use default active low interrupt signalling.
|
|
+ fragment@33 {
|
|
+ target = <&mcp23s08_01>;
|
|
+ __dormant__ {
|
|
+ interrupt-parent = <&gpio>;
|
|
+ interrupt-controller;
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Enable interrupts for a mcp23s08 on spi1.0.
|
|
+ // Use default active low interrupt signalling.
|
|
+ fragment@34 {
|
|
+ target = <&mcp23s08_10>;
|
|
+ __dormant__ {
|
|
+ interrupt-parent = <&gpio>;
|
|
+ interrupt-controller;
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Enable interrupts for a mcp23s08 on spi1.1.
|
|
+ // Use default active low interrupt signalling.
|
|
+ fragment@35 {
|
|
+ target = <&mcp23s08_11>;
|
|
+ __dormant__ {
|
|
+ interrupt-parent = <&gpio>;
|
|
+ interrupt-controller;
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Enable interrupts for a mcp23s08 on spi1.2.
|
|
+ // Use default active low interrupt signalling.
|
|
+ fragment@36 {
|
|
+ target = <&mcp23s08_12>;
|
|
+ __dormant__ {
|
|
+ interrupt-parent = <&gpio>;
|
|
+ interrupt-controller;
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Enable interrupts for a mcp23s08 on spi2.0.
|
|
+ // Use default active low interrupt signalling.
|
|
+ fragment@37 {
|
|
+ target = <&mcp23s08_20>;
|
|
+ __dormant__ {
|
|
+ interrupt-parent = <&gpio>;
|
|
+ interrupt-controller;
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Enable interrupts for a mcp23s08 on spi2.1.
|
|
+ // Use default active low interrupt signalling.
|
|
+ fragment@38 {
|
|
+ target = <&mcp23s08_21>;
|
|
+ __dormant__ {
|
|
+ interrupt-parent = <&gpio>;
|
|
+ interrupt-controller;
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Enable interrupts for a mcp23s08 on spi2.2.
|
|
+ // Use default active low interrupt signalling.
|
|
+ fragment@39 {
|
|
+ target = <&mcp23s08_22>;
|
|
+ __dormant__ {
|
|
+ interrupt-parent = <&gpio>;
|
|
+ interrupt-controller;
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Enable interrupts for a mcp23s17 on spi0.0.
|
|
+ // Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin.
|
|
+ // Use default active low interrupt signalling.
|
|
+ fragment@40 {
|
|
+ target = <&mcp23s17_00>;
|
|
+ __dormant__ {
|
|
+ interrupt-parent = <&gpio>;
|
|
+ interrupt-controller;
|
|
+ microchip,irq-mirror;
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Enable interrupts for a mcp23s17 on spi0.1.
|
|
+ // Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin.
|
|
+ // Configure INTA/B outputs of mcp23s08/17 as active low.
|
|
+ fragment@41 {
|
|
+ target = <&mcp23s17_01>;
|
|
+ __dormant__ {
|
|
+ interrupt-parent = <&gpio>;
|
|
+ interrupt-controller;
|
|
+ microchip,irq-mirror;
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Enable interrupts for a mcp23s17 on spi1.0.
|
|
+ // Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin.
|
|
+ // Configure INTA/B outputs of mcp23s08/17 as active low.
|
|
+ fragment@42 {
|
|
+ target = <&mcp23s17_10>;
|
|
+ __dormant__ {
|
|
+ interrupt-parent = <&gpio>;
|
|
+ interrupt-controller;
|
|
+ microchip,irq-mirror;
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Enable interrupts for a mcp23s17 on spi1.1.
|
|
+ // Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin.
|
|
+ // Configure INTA/B outputs of mcp23s08/17 as active low.
|
|
+ fragment@43 {
|
|
+ target = <&mcp23s17_11>;
|
|
+ __dormant__ {
|
|
+ interrupt-parent = <&gpio>;
|
|
+ interrupt-controller;
|
|
+ microchip,irq-mirror;
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Enable interrupts for a mcp23s17 on spi1.2.
|
|
+ // Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin.
|
|
+ // Configure INTA/B outputs of mcp23s08/17 as active low.
|
|
+ fragment@44 {
|
|
+ target = <&mcp23s17_12>;
|
|
+ __dormant__ {
|
|
+ interrupt-parent = <&gpio>;
|
|
+ interrupt-controller;
|
|
+ microchip,irq-mirror;
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Enable interrupts for a mcp23s17 on spi2.0.
|
|
+ // Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin.
|
|
+ // Configure INTA/B outputs of mcp23s08/17 as active low.
|
|
+ fragment@45 {
|
|
+ target = <&mcp23s17_20>;
|
|
+ __dormant__ {
|
|
+ interrupt-parent = <&gpio>;
|
|
+ interrupt-controller;
|
|
+ microchip,irq-mirror;
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Enable interrupts for a mcp23s17 on spi2.1.
|
|
+ // Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin.
|
|
+ // Configure INTA/B outputs of mcp23s08/17 as active low.
|
|
+ fragment@46 {
|
|
+ target = <&mcp23s17_21>;
|
|
+ __dormant__ {
|
|
+ interrupt-parent = <&gpio>;
|
|
+ interrupt-controller;
|
|
+ microchip,irq-mirror;
|
|
+ };
|
|
+ };
|
|
+
|
|
+ // Enable interrupts for a mcp23s17 on spi2.2.
|
|
+ // Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin.
|
|
+ // Configure INTA/B outputs of mcp23s08/17 as active low.
|
|
+ fragment@47 {
|
|
+ target = <&mcp23s17_22>;
|
|
+ __dormant__ {
|
|
+ interrupt-parent = <&gpio>;
|
|
+ interrupt-controller;
|
|
+ microchip,irq-mirror;
|
|
+ };
|
|
+ };
|
|
+
|
|
+ __overrides__ {
|
|
+ s08-spi0-0-present = <0>,"+0+8", <&mcp23s08_00>,"microchip,spi-present-mask:0";
|
|
+ s08-spi0-1-present = <0>,"+1+9", <&mcp23s08_01>,"microchip,spi-present-mask:0";
|
|
+ s08-spi1-0-present = <0>,"+2+10", <&mcp23s08_10>,"microchip,spi-present-mask:0";
|
|
+ s08-spi1-1-present = <0>,"+3+11", <&mcp23s08_11>,"microchip,spi-present-mask:0";
|
|
+ s08-spi1-2-present = <0>,"+4+12", <&mcp23s08_12>,"microchip,spi-present-mask:0";
|
|
+ s08-spi2-0-present = <0>,"+5+13", <&mcp23s08_20>,"microchip,spi-present-mask:0";
|
|
+ s08-spi2-1-present = <0>,"+6+14", <&mcp23s08_21>,"microchip,spi-present-mask:0";
|
|
+ s08-spi2-2-present = <0>,"+7+15", <&mcp23s08_22>,"microchip,spi-present-mask:0";
|
|
+ s17-spi0-0-present = <0>,"+0+16", <&mcp23s17_00>,"microchip,spi-present-mask:0";
|
|
+ s17-spi0-1-present = <0>,"+1+17", <&mcp23s17_01>,"microchip,spi-present-mask:0";
|
|
+ s17-spi1-0-present = <0>,"+2+18", <&mcp23s17_10>,"microchip,spi-present-mask:0";
|
|
+ s17-spi1-1-present = <0>,"+3+19", <&mcp23s17_11>,"microchip,spi-present-mask:0";
|
|
+ s17-spi1-2-present = <0>,"+4+20", <&mcp23s17_12>,"microchip,spi-present-mask:0";
|
|
+ s17-spi2-0-present = <0>,"+5+21", <&mcp23s17_20>,"microchip,spi-present-mask:0";
|
|
+ s17-spi2-1-present = <0>,"+6+22", <&mcp23s17_21>,"microchip,spi-present-mask:0";
|
|
+ s17-spi2-2-present = <0>,"+7+23", <&mcp23s17_22>,"microchip,spi-present-mask:0";
|
|
+ s08-spi0-0-int-gpio = <0>,"+24+32", <&spi0_0_int_pins>,"brcm,pins:0", <&mcp23s08_00>,"interrupts:0";
|
|
+ s08-spi0-1-int-gpio = <0>,"+25+33", <&spi0_1_int_pins>,"brcm,pins:0", <&mcp23s08_01>,"interrupts:0";
|
|
+ s08-spi1-0-int-gpio = <0>,"+26+34", <&spi1_0_int_pins>,"brcm,pins:0", <&mcp23s08_10>,"interrupts:0";
|
|
+ s08-spi1-1-int-gpio = <0>,"+27+35", <&spi1_1_int_pins>,"brcm,pins:0", <&mcp23s08_11>,"interrupts:0";
|
|
+ s08-spi1-2-int-gpio = <0>,"+28+36", <&spi1_2_int_pins>,"brcm,pins:0", <&mcp23s08_12>,"interrupts:0";
|
|
+ s08-spi2-0-int-gpio = <0>,"+29+37", <&spi2_0_int_pins>,"brcm,pins:0", <&mcp23s08_20>,"interrupts:0";
|
|
+ s08-spi2-1-int-gpio = <0>,"+30+38", <&spi2_1_int_pins>,"brcm,pins:0", <&mcp23s08_21>,"interrupts:0";
|
|
+ s08-spi2-2-int-gpio = <0>,"+31+39", <&spi2_2_int_pins>,"brcm,pins:0", <&mcp23s08_22>,"interrupts:0";
|
|
+ s17-spi0-0-int-gpio = <0>,"+24+40", <&spi0_0_int_pins>,"brcm,pins:0", <&mcp23s17_00>,"interrupts:0";
|
|
+ s17-spi0-1-int-gpio = <0>,"+25+41", <&spi0_1_int_pins>,"brcm,pins:0", <&mcp23s17_01>,"interrupts:0";
|
|
+ s17-spi1-0-int-gpio = <0>,"+26+42", <&spi1_0_int_pins>,"brcm,pins:0", <&mcp23s17_10>,"interrupts:0";
|
|
+ s17-spi1-1-int-gpio = <0>,"+27+43", <&spi1_1_int_pins>,"brcm,pins:0", <&mcp23s17_11>,"interrupts:0";
|
|
+ s17-spi1-2-int-gpio = <0>,"+28+44", <&spi1_2_int_pins>,"brcm,pins:0", <&mcp23s17_12>,"interrupts:0";
|
|
+ s17-spi2-0-int-gpio = <0>,"+29+45", <&spi2_0_int_pins>,"brcm,pins:0", <&mcp23s17_20>,"interrupts:0";
|
|
+ s17-spi2-1-int-gpio = <0>,"+30+46", <&spi2_1_int_pins>,"brcm,pins:0", <&mcp23s17_21>,"interrupts:0";
|
|
+ s17-spi2-2-int-gpio = <0>,"+31+47", <&spi2_2_int_pins>,"brcm,pins:0", <&mcp23s17_22>,"interrupts:0";
|
|
+ };
|
|
+};
|
|
+
|