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249 lines
5.3 KiB
Diff
249 lines
5.3 KiB
Diff
From ab6b50d10b73ed3150dd80633131b7d56c1c63df Mon Sep 17 00:00:00 2001
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From: penfold42 <penfold42@users.noreply.github.com>
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Date: Tue, 2 Jan 2018 00:15:19 +1100
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Subject: [PATCH 146/454] Add overlay for mcp3202 12 bit ADC
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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 | 9 +
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.../arm/boot/dts/overlays/mcp3202-overlay.dts | 205 ++++++++++++++++++
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3 files changed, 215 insertions(+)
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create mode 100755 arch/arm/boot/dts/overlays/mcp3202-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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@@ -61,6 +61,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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mcp2515-can0.dtbo \
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mcp2515-can1.dtbo \
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mcp3008.dtbo \
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+ mcp3202.dtbo \
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media-center.dtbo \
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midi-uart0.dtbo \
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midi-uart1.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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@@ -994,6 +994,15 @@ Params: spi<n>-<m>-present boolean,
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spi<n>-<m>-speed integer, set the spi bus speed for this device
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+Name: mcp3202
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+Info: Configures MCP3202 A/D converters
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+ For devices on spi1 or spi2, the interfaces should 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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+Load: dtoverlay=mcp3202,<param>[=<val>]
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+Params: spi<n>-<m>-present boolean, configure device at spi<n>, cs<m>
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+ spi<n>-<m>-speed integer, set the spi bus speed for this device
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+
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+
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Name: media-center
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Info: Media Center HAT - 2.83" Touch Display + extras by Pi Supply
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Load: dtoverlay=media-center,<param>=<val>
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/mcp3202-overlay.dts
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@@ -0,0 +1,205 @@
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+/*
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+ * Device tree overlay for Microchip mcp3202 12-Bit A/D Converters
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+ */
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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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+ 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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+ 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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+ 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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+ 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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+ 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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+ 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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+ 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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+ 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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+ 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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+
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+ mcp3202_00: mcp3202@0 {
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+ compatible = "mcp3202";
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+ reg = <0>;
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+ spi-max-frequency = <1600000>;
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+ };
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+ };
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+ };
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+
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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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+
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+ mcp3202_01: mcp3202@1 {
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+ compatible = "mcp3202";
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+ reg = <1>;
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+ spi-max-frequency = <1600000>;
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+ };
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+ };
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+ };
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+
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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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+
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+ mcp3202_10: mcp3202@0 {
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+ compatible = "mcp3202";
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+ reg = <0>;
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+ spi-max-frequency = <1600000>;
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+ };
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+ };
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+ };
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+
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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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+
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+ mcp3202_11: mcp3202@1 {
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+ compatible = "mcp3202";
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+ reg = <1>;
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+ spi-max-frequency = <1600000>;
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+ };
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+ };
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+ };
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+
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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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+
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+ mcp3202_12: mcp3202@2 {
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+ compatible = "mcp3202";
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+ reg = <2>;
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+ spi-max-frequency = <1600000>;
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+ };
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+ };
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+ };
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+
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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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+
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+ mcp3202_20: mcp3202@0 {
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+ compatible = "mcp3202";
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+ reg = <0>;
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+ spi-max-frequency = <1600000>;
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+ };
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+ };
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+ };
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+
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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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+
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+ mcp3202_21: mcp3202@1 {
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+ compatible = "mcp3202";
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+ reg = <1>;
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+ spi-max-frequency = <1600000>;
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+ };
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+ };
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+ };
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+
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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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+
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+ mcp3202_22: mcp3202@2 {
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+ compatible = "mcp3202";
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+ reg = <2>;
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+ spi-max-frequency = <1600000>;
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+ };
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+ };
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+ };
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+
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+ __overrides__ {
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+ spi0-0-present = <0>, "+0+8";
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+ spi0-1-present = <0>, "+1+9";
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+ spi1-0-present = <0>, "+2+10";
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+ spi1-1-present = <0>, "+3+11";
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+ spi1-2-present = <0>, "+4+12";
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+ spi2-0-present = <0>, "+5+13";
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+ spi2-1-present = <0>, "+6+14";
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+ spi2-2-present = <0>, "+7+15";
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+ spi0-0-speed = <&mcp3202_00>, "spi-max-frequency:0";
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+ spi0-1-speed = <&mcp3202_01>, "spi-max-frequency:0";
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+ spi1-0-speed = <&mcp3202_10>, "spi-max-frequency:0";
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+ spi1-1-speed = <&mcp3202_11>, "spi-max-frequency:0";
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+ spi1-2-speed = <&mcp3202_12>, "spi-max-frequency:0";
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+ spi2-0-speed = <&mcp3202_20>, "spi-max-frequency:0";
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+ spi2-1-speed = <&mcp3202_21>, "spi-max-frequency:0";
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+ spi2-2-speed = <&mcp3202_22>, "spi-max-frequency:0";
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+ };
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+};
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