+++ /dev/null
-From 6d5e32067cf3f3169ec15097c175878de365d247 Mon Sep 17 00:00:00 2001
-From: Scott Ellis <scott@jumpnowtek.com>
-Date: Wed, 1 Mar 2017 07:22:24 -0500
-Subject: [PATCH] Add overlay for ads1115 ADCs (#1864)
-
----
- arch/arm/boot/dts/overlays/Makefile | 1 +
- arch/arm/boot/dts/overlays/README | 22 ++++++
- arch/arm/boot/dts/overlays/ads1115-overlay.dts | 103 +++++++++++++++++++++++++
- 3 files changed, 126 insertions(+)
- create mode 100644 arch/arm/boot/dts/overlays/ads1115-overlay.dts
-
---- a/arch/arm/boot/dts/overlays/Makefile
-+++ b/arch/arm/boot/dts/overlays/Makefile
-@@ -4,6 +4,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
- adau1977-adc.dtbo \
- adau7002-simple.dtbo \
- ads1015.dtbo \
-+ ads1115.dtbo \
- ads7846.dtbo \
- akkordion-iqdacplus.dtbo \
- allo-piano-dac-pcm512x-audio.dtbo \
---- a/arch/arm/boot/dts/overlays/README
-+++ b/arch/arm/boot/dts/overlays/README
-@@ -196,6 +196,28 @@ Params: addr I2C bus
- http://www.ti.com/lit/ds/symlink/ads1015.pdf
-
-
-+Name: ads1115
-+Info: Texas Instruments ADS1115 ADC
-+Load: dtoverlay=ads1115,<param>[=<val>]
-+Params: addr I2C bus address of device. Set based on how the
-+ addr pin is wired. (default=0x48 assumes addr
-+ is pulled to GND)
-+ cha_enable Enable virtual channel a.
-+ cha_cfg Set the configuration for virtual channel a.
-+ (default=4 configures this channel for the
-+ voltage at A0 with respect to GND)
-+ cha_datarate Set the datarate (samples/sec) for this channel.
-+ (default=7 sets 860 sps)
-+ cha_gain Set the gain of the Programmable Gain
-+ Amplifier for this channel. (Default 1 sets the
-+ full scale of the channel to 4.096 Volts)
-+
-+ Channel parameters can be set for each enabled channel.
-+ A maximum of 4 channels can be enabled (letters a thru d).
-+ For more information refer to the device datasheet at:
-+ http://www.ti.com/lit/ds/symlink/ads1115.pdf
-+
-+
- Name: ads7846
- Info: ADS7846 Touch controller
- Load: dtoverlay=ads7846,<param>=<val>
---- /dev/null
-+++ b/arch/arm/boot/dts/overlays/ads1115-overlay.dts
-@@ -0,0 +1,103 @@
-+/*
-+ * TI ADS1115 multi-channel ADC overlay
-+ */
-+
-+/dts-v1/;
-+/plugin/;
-+
-+/ {
-+ compatible = "brcm,bcm2708";
-+
-+ fragment@0 {
-+ target = <&i2c_arm>;
-+ __overlay__ {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ status = "okay";
-+
-+ ads1115: ads1115 {
-+ compatible = "ti,ads1115";
-+ status = "okay";
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ reg = <0x48>;
-+ };
-+ };
-+ };
-+
-+ fragment@1 {
-+ target-path = "i2c_arm/ads1115";
-+ __dormant__ {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+
-+ channel_a: channel_a {
-+ reg = <4>;
-+ ti,gain = <1>;
-+ ti,datarate = <7>;
-+ };
-+ };
-+ };
-+
-+ fragment@2 {
-+ target-path = "i2c_arm/ads1115";
-+ __dormant__ {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+
-+ channel_b: channel_b {
-+ reg = <5>;
-+ ti,gain = <1>;
-+ ti,datarate = <7>;
-+ };
-+ };
-+ };
-+
-+ fragment@3 {
-+ target-path = "i2c_arm/ads1115";
-+ __dormant__ {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+
-+ channel_c: channel_c {
-+ reg = <6>;
-+ ti,gain = <1>;
-+ ti,datarate = <7>;
-+ };
-+ };
-+ };
-+
-+ fragment@4 {
-+ target-path = "i2c_arm/ads1115";
-+ __dormant__ {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+
-+ channel_d: channel_d {
-+ reg = <7>;
-+ ti,gain = <1>;
-+ ti,datarate = <7>;
-+ };
-+ };
-+ };
-+
-+ __overrides__ {
-+ addr = <&ads1115>,"reg:0";
-+ cha_enable = <0>,"=1";
-+ cha_cfg = <&channel_a>,"reg:0";
-+ cha_gain = <&channel_a>,"ti,gain:0";
-+ cha_datarate = <&channel_a>,"ti,datarate:0";
-+ chb_enable = <0>,"=2";
-+ chb_cfg = <&channel_b>,"reg:0";
-+ chb_gain = <&channel_b>,"ti,gain:0";
-+ chb_datarate = <&channel_b>,"ti,datarate:0";
-+ chc_enable = <0>,"=3";
-+ chc_cfg = <&channel_c>,"reg:0";
-+ chc_gain = <&channel_c>,"ti,gain:0";
-+ chc_datarate = <&channel_c>,"ti,datarate:0";
-+ chd_enable = <0>,"=4";
-+ chd_cfg = <&channel_d>,"reg:0";
-+ chd_gain = <&channel_d>,"ti,gain:0";
-+ chd_datarate = <&channel_d>,"ti,datarate:0";
-+ };
-+};
projects / openwrt / staging / lynxis.git / blobdiff