251f76c1c6
Adds latest 6.6 patches from the Raspberry Pi repository. These patches were generated from: https://github.com/raspberrypi/linux/commits/rpi-6.6.y/ With the following command: git format-patch -N v6.6.83..HEAD (HEAD -> 08d4e8f52256bd422d8a1f876411603f627d0a82) Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
103 lines
3.8 KiB
Diff
103 lines
3.8 KiB
Diff
From 94de19285cc9bd781394bf1aa4fb8d401aac5195 Mon Sep 17 00:00:00 2001
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From: James Sarrett <jsarrett@gmail.com>
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Date: Sun, 26 Jan 2025 11:29:31 -0800
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Subject: [PATCH] add ina238 to i2c-sensors
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This patch adds the ina238 device tree parameters to the i2c-sensors
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overlay. The ina238 driver needs 2 configuration parameters, shut_resistor
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and ti,shunt-gain in addition to it's address, so they are added as well.
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---
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arch/arm/boot/dts/overlays/README | 13 ++++++++++
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.../boot/dts/overlays/i2c-sensor-common.dtsi | 26 ++++++++++++++++++-
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2 files changed, 38 insertions(+), 1 deletion(-)
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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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@@ -2486,11 +2486,20 @@ Params: addr Set the
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ds1621 Select the Dallas Semiconductors DS1621 temp
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sensor. Valid addresses 0x48-0x4f, default 0x48
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+ gain Gain used for measuring shunt resistor current.
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+ Valid values 1 or 4, default 1. (ina238 only,
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+ disabled by default)
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+
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hdc100x Select the Texas Instruments HDC100x temp sensor
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Valid addresses 0x40-0x43, default 0x40
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htu21 Select the HTU21 temperature and humidity sensor
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+ ina238 Select the TI INA238 power monitor. Valid
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+ addresses 0x40-0x4F, default 0x40.
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+ Uses parameters shunt-resistor and
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+ ti,shunt-gain for configuration
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+
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int_pin Set the GPIO to use for interrupts (max30102,
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mpu6050 and mpu9250 only)
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@@ -2549,6 +2558,10 @@ Params: addr Set the
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reset_pin GPIO to be used to reset the device (bno055
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only, disabled by default)
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+ shunt_resistor Value of shunt resistor used for current
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+ measurement in uOhms. (ina238 only, disabled
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+ by default)
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+
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sht3x Select the Sensirion SHT3x temperature and
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humidity sensors. Valid addresses 0x44-0x45,
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default 0x44
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--- a/arch/arm/boot/dts/overlays/i2c-sensor-common.dtsi
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+++ b/arch/arm/boot/dts/overlays/i2c-sensor-common.dtsi
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@@ -526,6 +526,27 @@
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};
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};
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+ fragment@35 {
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+ target = <&i2cbus>;
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+ __dormant__ {
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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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+ ina238: ina238@48 {
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+ compatible = "ti,ina238";
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ reg = <0x40>;
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+ /* uOhms, uint32_t */
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+ shunt-resistor = <1000>;
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+ /* 1 or 4, (±40.96 mV or ±163.84 mV) */
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+ ti,shunt-gain = <1>;
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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@99 {
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target = <&gpio>;
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__dormant__ {
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@@ -573,6 +594,7 @@
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bno055 = <0>,"+31";
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sht4x = <0>,"+32";
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adt7410 = <0>,"+34";
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+ ina238 = <0>,"+35";
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addr = <&bme280>,"reg:0", <&bmp280>,"reg:0", <&tmp102>,"reg:0",
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<&lm75>,"reg:0", <&hdc100x>,"reg:0", <&sht3x>,"reg:0",
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@@ -582,7 +604,7 @@
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<&ms5837>,"reg:0", <&ms8607>,"reg:0",
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<&mpu6050>,"reg:0", <&mpu9250>,"reg:0",
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<&bno055>,"reg:0", <&sht4x>,"reg:0",
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- <&bmp380>,"reg:0", <&adt7410>,"reg:0";
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+ <&bmp380>,"reg:0", <&adt7410>,"reg:0", <&ina238>,"reg:0";
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int_pin = <&int_pins>, "brcm,pins:0",
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<&int_pins>, "reg:0",
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<&max30102>, "interrupts:0",
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@@ -590,5 +612,7 @@
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<&mpu9250>, "interrupts:0";
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no_timeout = <&jc42>, "smbus-timeout-disable?";
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reset_pin = <&bno055>,"reset-gpios:4", <0>,"+30";
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+ shunt_resistor = <&ina238>,"shunt-resistor:0";
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+ gain = <&ina238>,"ti,shunt-gain:0";
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};
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};
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