[PATCH] ARM: dts: Fix undocumented LM75 compatible nodes
Rob Herring (Arm)
robh at kernel.org
Fri Aug 9 02:49:38 AEST 2024
"lm75" without any vendor is undocumented. It works with the Linux
kernel since the I2C subsystem will do matches of the compatible string
without a vendor prefix to the i2c_device_id and/or driver name.
Mostly replace "lm75" with "national,lm75" as that's the original part
vendor and the compatible which matches what "lm75" matched with. In a
couple of cases the node name or compatible gives a clue to the actual
part and vendor and a more specific compatible can be used. In these
cases, it does change the variant the kernel picks.
"nct75" is an OnSemi part which is compatible with TI TMP75C based on
a comparison of the OnSemi NCT75 datasheet and configuration the Linux
driver uses. Adding an OnSemi compatible would be an ABI change.
"nxp,lm75" is most likely an NXP part. NXP makes a LM75A and LM75B.
Both are 11-bit resolution and 100ms sample time, so "national,lm75b" is
the closest match.
While we're here, fix the node names to use the generic name
"temperature-sensor".
Signed-off-by: Rob Herring (Arm) <robh at kernel.org>
---
SoC maintainers, Please take this directly.
---
.../aspeed/aspeed-bmc-facebook-greatlakes.dts | 2 +-
.../socfpga/socfpga_cyclone5_vining_fpga.dts | 4 +--
.../dts/marvell/armada-385-clearfog-gtr.dtsi | 8 ++---
.../boot/dts/nuvoton/nuvoton-npcm730-kudo.dts | 32 +++++++++----------
.../boot/dts/nuvoton/nuvoton-npcm750-evb.dts | 6 ++--
arch/arm/boot/dts/nxp/imx/imx53-mba53.dts | 4 +--
arch/arm/boot/dts/nxp/imx/imx53-tqma53.dtsi | 4 +--
.../dts/nxp/lpc/lpc4357-ea4357-devkit.dts | 4 +--
.../boot/dts/nxp/lpc/lpc4357-myd-lpc4357.dts | 2 +-
arch/arm/boot/dts/ti/omap/am335x-nano.dts | 2 +-
.../boot/dts/xilinx/zynq-zturn-common.dtsi | 4 +--
11 files changed, 36 insertions(+), 36 deletions(-)
diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-greatlakes.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-greatlakes.dts
index 998598c15fd0..49914a4a179f 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-greatlakes.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-greatlakes.dts
@@ -201,7 +201,7 @@ eeprom at 54 {
&i2c12 {
status = "okay";
temperature-sensor at 4f {
- compatible = "lm75";
+ compatible = "national,lm75";
reg = <0x4f>;
};
};
diff --git a/arch/arm/boot/dts/intel/socfpga/socfpga_cyclone5_vining_fpga.dts b/arch/arm/boot/dts/intel/socfpga/socfpga_cyclone5_vining_fpga.dts
index 65f390bf8975..84f39dec3c42 100644
--- a/arch/arm/boot/dts/intel/socfpga/socfpga_cyclone5_vining_fpga.dts
+++ b/arch/arm/boot/dts/intel/socfpga/socfpga_cyclone5_vining_fpga.dts
@@ -130,8 +130,8 @@ gpio: pca9557 at 1f {
#gpio-cells = <2>;
};
- temp: lm75 at 48 {
- compatible = "lm75";
+ temp: temperature-sensor at 48 {
+ compatible = "national,lm75";
reg = <0x48>;
};
diff --git a/arch/arm/boot/dts/marvell/armada-385-clearfog-gtr.dtsi b/arch/arm/boot/dts/marvell/armada-385-clearfog-gtr.dtsi
index f3a3cb6ac311..8208c6a9627a 100644
--- a/arch/arm/boot/dts/marvell/armada-385-clearfog-gtr.dtsi
+++ b/arch/arm/boot/dts/marvell/armada-385-clearfog-gtr.dtsi
@@ -423,14 +423,14 @@ &i2c0 {
status = "okay";
/* U26 temperature sensor placed near SoC */
- temp1: nct75 at 4c {
- compatible = "lm75";
+ temp1: temperature-sensor at 4c {
+ compatible = "ti,tmp75c";
reg = <0x4c>;
};
/* U27 temperature sensor placed near RTC battery */
- temp2: nct75 at 4d {
- compatible = "lm75";
+ temp2: temperature-sensor at 4d {
+ compatible = "ti,tmp75c";
reg = <0x4d>;
};
diff --git a/arch/arm/boot/dts/nuvoton/nuvoton-npcm730-kudo.dts b/arch/arm/boot/dts/nuvoton/nuvoton-npcm730-kudo.dts
index 1f07ba382910..886a87dfcd0d 100644
--- a/arch/arm/boot/dts/nuvoton/nuvoton-npcm730-kudo.dts
+++ b/arch/arm/boot/dts/nuvoton/nuvoton-npcm730-kudo.dts
@@ -531,8 +531,8 @@ i2c at 4 {
reg = <4>;
// INLET1_T
- lm75 at 5c {
- compatible = "ti,lm75";
+ temperature-sensor at 5c {
+ compatible = "national,lm75";
reg = <0x5c>;
};
};
@@ -543,8 +543,8 @@ i2c at 5 {
reg = <5>;
// OUTLET1_T
- lm75 at 5c {
- compatible = "ti,lm75";
+ temperature-sensor at 5c {
+ compatible = "national,lm75";
reg = <0x5c>;
};
};
@@ -555,8 +555,8 @@ i2c at 6 {
reg = <6>;
// OUTLET2_T
- lm75 at 5c {
- compatible = "ti,lm75";
+ temperature-sensor at 5c {
+ compatible = "national,lm75";
reg = <0x5c>;
};
};
@@ -567,8 +567,8 @@ i2c at 7 {
reg = <7>;
// OUTLET3_T
- lm75 at 5c {
- compatible = "ti,lm75";
+ temperature-sensor at 5c {
+ compatible = "national,lm75";
reg = <0x5c>;
};
};
@@ -697,8 +697,8 @@ i2c at 3 {
reg = <3>;
// M2_ZONE_T
- lm75 at 28 {
- compatible = "ti,lm75";
+ temperature-sensor at 28 {
+ compatible = "national,lm75";
reg = <0x28>;
};
};
@@ -709,8 +709,8 @@ i2c at 4 {
reg = <4>;
// BATT_ZONE_T
- lm75 at 29 {
- compatible = "ti,lm75";
+ temperature-sensor at 29 {
+ compatible = "national,lm75";
reg = <0x29>;
};
};
@@ -721,8 +721,8 @@ i2c at 5 {
reg = <5>;
// NBM1_ZONE_T
- lm75 at 28 {
- compatible = "ti,lm75";
+ temperature-sensor at 28 {
+ compatible = "national,lm75";
reg = <0x28>;
};
};
@@ -732,8 +732,8 @@ i2c at 6 {
reg = <6>;
// NBM2_ZONE_T
- lm75 at 29 {
- compatible = "ti,lm75";
+ temperature-sensor at 29 {
+ compatible = "national,lm75";
reg = <0x29>;
};
};
diff --git a/arch/arm/boot/dts/nuvoton/nuvoton-npcm750-evb.dts b/arch/arm/boot/dts/nuvoton/nuvoton-npcm750-evb.dts
index f53d45fa1de8..bcdcb30c7bf6 100644
--- a/arch/arm/boot/dts/nuvoton/nuvoton-npcm750-evb.dts
+++ b/arch/arm/boot/dts/nuvoton/nuvoton-npcm750-evb.dts
@@ -198,7 +198,7 @@ &i2c0 {
clock-frequency = <100000>;
status = "okay";
lm75 at 48 {
- compatible = "lm75";
+ compatible = "national,lm75";
reg = <0x48>;
status = "okay";
};
@@ -208,8 +208,8 @@ lm75 at 48 {
&i2c1 {
clock-frequency = <100000>;
status = "okay";
- lm75 at 48 {
- compatible = "lm75";
+ temperature-sensor at 48 {
+ compatible = "national,lm75";
reg = <0x48>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/nxp/imx/imx53-mba53.dts b/arch/arm/boot/dts/nxp/imx/imx53-mba53.dts
index 2117de872703..d155b3ec22ef 100644
--- a/arch/arm/boot/dts/nxp/imx/imx53-mba53.dts
+++ b/arch/arm/boot/dts/nxp/imx/imx53-mba53.dts
@@ -175,8 +175,8 @@ expander: pca9554 at 20 {
gpio-controller;
};
- sensor2: lm75 at 49 {
- compatible = "lm75";
+ sensor2: temperature-sensor at 49 {
+ compatible = "national,lm75";
reg = <0x49>;
};
};
diff --git a/arch/arm/boot/dts/nxp/imx/imx53-tqma53.dtsi b/arch/arm/boot/dts/nxp/imx/imx53-tqma53.dtsi
index b2d7271d1d24..d01c3aee0272 100644
--- a/arch/arm/boot/dts/nxp/imx/imx53-tqma53.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx53-tqma53.dtsi
@@ -254,8 +254,8 @@ pmic: mc34708 at 8 {
interrupts = <6 4>; /* PATA_DATA6, active high */
};
- sensor1: lm75 at 48 {
- compatible = "lm75";
+ sensor1: temperature-sensor at 48 {
+ compatible = "national,lm75";
reg = <0x48>;
};
diff --git a/arch/arm/boot/dts/nxp/lpc/lpc4357-ea4357-devkit.dts b/arch/arm/boot/dts/nxp/lpc/lpc4357-ea4357-devkit.dts
index 224f80a4a31d..4aefbc01dfc0 100644
--- a/arch/arm/boot/dts/nxp/lpc/lpc4357-ea4357-devkit.dts
+++ b/arch/arm/boot/dts/nxp/lpc/lpc4357-ea4357-devkit.dts
@@ -482,8 +482,8 @@ mma7455 at 1d {
reg = <0x1d>;
};
- lm75 at 48 {
- compatible = "nxp,lm75";
+ temperature-sensor at 48 {
+ compatible = "national,lm75b";
reg = <0x48>;
};
diff --git a/arch/arm/boot/dts/nxp/lpc/lpc4357-myd-lpc4357.dts b/arch/arm/boot/dts/nxp/lpc/lpc4357-myd-lpc4357.dts
index 1f84654df50c..846afb8ccbf1 100644
--- a/arch/arm/boot/dts/nxp/lpc/lpc4357-myd-lpc4357.dts
+++ b/arch/arm/boot/dts/nxp/lpc/lpc4357-myd-lpc4357.dts
@@ -511,7 +511,7 @@ &i2c1 {
clock-frequency = <400000>;
sensor at 49 {
- compatible = "lm75";
+ compatible = "national,lm75";
reg = <0x49>;
};
diff --git a/arch/arm/boot/dts/ti/omap/am335x-nano.dts b/arch/arm/boot/dts/ti/omap/am335x-nano.dts
index 26b5510cb3d1..56929059f5af 100644
--- a/arch/arm/boot/dts/ti/omap/am335x-nano.dts
+++ b/arch/arm/boot/dts/ti/omap/am335x-nano.dts
@@ -231,7 +231,7 @@ tps: tps at 24 {
};
temperature-sensor at 48 {
- compatible = "lm75";
+ compatible = "national,lm75";
reg = <0x48>;
};
diff --git a/arch/arm/boot/dts/xilinx/zynq-zturn-common.dtsi b/arch/arm/boot/dts/xilinx/zynq-zturn-common.dtsi
index dfb1fbafe3aa..33b02e05ce82 100644
--- a/arch/arm/boot/dts/xilinx/zynq-zturn-common.dtsi
+++ b/arch/arm/boot/dts/xilinx/zynq-zturn-common.dtsi
@@ -97,9 +97,9 @@ &i2c0 {
status = "okay";
clock-frequency = <400000>;
- stlm75 at 49 {
+ temperature-sensor at 49 {
status = "okay";
- compatible = "lm75";
+ compatible = "st,stlm75";
reg = <0x49>;
};
--
2.43.0
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