From ef6a692bf0e076c905a912fbb8e65481c354a7ca Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Wed, 23 Nov 2022 11:51:38 +0000 Subject: [PATCH] overlays: i2c-sensor: Make smbus-timeout-disable optional Although disabling the SMBUS timeout may be useful, not all chips support it. The driver treats attempting to disable the timeout on a non-supporting chip as an error, so make it an option enabled using the no_timeout parameter. Signed-off-by: Phil Elwell --- arch/arm/boot/dts/overlays/README | 5 +++++ arch/arm/boot/dts/overlays/i2c-sensor-common.dtsi | 2 +- 2 files changed, 6 insertions(+), 1 deletion(-) --- a/arch/arm/boot/dts/overlays/README +++ b/arch/arm/boot/dts/overlays/README @@ -1999,6 +1999,11 @@ Params: addr Set the use the "jc42" option. Valid addresses are 0x18-0x1f (default 0x18) + no_timeout Disable the SMBUS timeout. N.B. Only supported + by some jc42 devices - using with an + incompatible device can stop it from being + activated. + sht3x Select the Sensiron SHT3x temperature and humidity sensor. Valid addresses 0x44-0x45, default 0x44 --- a/arch/arm/boot/dts/overlays/i2c-sensor-common.dtsi +++ b/arch/arm/boot/dts/overlays/i2c-sensor-common.dtsi @@ -347,7 +347,6 @@ jc42: jc42@18 { compatible = "jedec,jc-42.4-temp"; reg = <0x18>; - smbus-timeout-disable; }; }; }; @@ -383,5 +382,6 @@ <&ds1621>,"reg:0", <&bme680>,"reg:0", <&ccs811>,"reg:0", <&bh1750>,"reg:0", <&mcp980x>,"reg:0", <&jc42>,"reg:0"; int_pin = <&max30102>, "interrupts:0"; + no_timeout = <&jc42>, "smbus-timeout-disable?"; }; };