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85 lines
3.2 KiB
Diff
85 lines
3.2 KiB
Diff
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From 2ed7fb7bf15420d80c3b272a3a887e142046b7b2 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Mon, 7 Nov 2022 15:31:43 +0000
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Subject: [PATCH] overlays: i2c-sensor: Add the jc42 class of sensor
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This is a second attempt to solve issue 5234, since it turns out that
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the mcp980x driver only supports MCP9800-MCP9803. MCP9804, MCP9805 and
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MCP9808 require the jc42 driver.
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See: https://github.com/raspberrypi/linux/issues/5234
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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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 | 18 +++++++++++++++++-
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2 files changed, 29 insertions(+), 2 deletions(-)
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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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@@ -1970,6 +1970,15 @@ Params: addr Set the
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int_pin Set the GPIO to use for interrupts (max30102
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only)
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+ jc42 Select any of the many JEDEC JC42.4-compliant
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+ temperature sensors, including:
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+ ADT7408, AT30TS00, CAT34TS02, CAT6095,
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+ MAX6604, MCP9804, MCP9805, MCP9808,
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+ MCP98242, MCP98243, MCP98244, MCP9843,
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+ SE97, SE98, STTS424(E), STTS2002, STTS3000,
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+ TSE2002, TSE2004, TS3000, and TS3001.
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+ The default address is 0x18.
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+
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lm75 Select the Maxim LM75 temperature sensor
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Valid addresses 0x48-0x4f, default 0x4f
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@@ -1982,7 +1991,9 @@ Params: addr Set the
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and blood-oxygen sensor
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mcp980x Select the Maxim MCP980x range of temperature
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- sensors (e.g. MCP9808).
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+ sensors (i.e. MCP9800, MCP9801, MCP9802 and
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+ MCP9803). N.B. For MCP9804, MCP9805 and MCP9808,
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+ use the "jc42" option.
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Valid addresses are 0x18-0x1f (default 0x18)
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sht3x Select the Sensiron SHT3x temperature and
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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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@@ -337,6 +337,21 @@
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};
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};
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+ fragment@22 {
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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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+ jc42: jc42@18 {
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+ compatible = "jedec,jc-42.4-temp";
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+ reg = <0x18>;
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+ smbus-timeout-disable;
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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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bme280 = <0>,"+0";
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bmp085 = <0>,"+1";
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@@ -361,11 +376,12 @@
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max30102 = <0>,"+19";
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aht10 = <0>,"+20";
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mcp980x = <0>,"+21";
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+ jc42 = <0>,"+22";
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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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<&ds1621>,"reg:0", <&bme680>,"reg:0", <&ccs811>,"reg:0",
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- <&bh1750>,"reg:0", <&mcp980x>,"reg:0";
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+ <&bh1750>,"reg:0", <&mcp980x>,"reg:0", <&jc42>,"reg:0";
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int_pin = <&max30102>, "interrupts:0";
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};
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};
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