From patchwork Fri Aug 16 16:47:14 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rob Herring X-Patchwork-Id: 820521 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 80B1C1C0DDE; Fri, 16 Aug 2024 16:47:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723826841; cv=none; b=ev9KhMCRK9tB2PR8pCMbaAD7YUXUQhSAZXJ0rUNivxUqSdcLlRI3ff6bZJJNyhpNu04hBTRgp/fNCQ8ZErR2GIfcvSa++Qhk71WvpDGE/1aILH0wa6JYQAoeU5PJ23N0MECEkkWmfwpgm9SQi6SlNo7tCvaELSu185Fbb0dD+24= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723826841; c=relaxed/simple; bh=A6oWteJWQa5GtSXtODjFY7Q4z1r0QCJglaW5zy61s0o=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=WpH/3tt7hSYImFL586xxIkMToJzaZVJ+Ay3Y2XqCEnX7uMih4owfL47EA8iXYx5VmslIN6898C/Qf8IOLqvRYZyGyXx8YNcaIXUmBKYQM/RAYAYQ91VyfVkZQ2diHlkejp4XFg/Tg0HYP9d/q6vEuaTDsMdH7yVisrsP92Hp/+Y= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KoohLSej; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="KoohLSej" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0189EC32782; Fri, 16 Aug 2024 16:47:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1723826841; bh=A6oWteJWQa5GtSXtODjFY7Q4z1r0QCJglaW5zy61s0o=; h=From:List-Id:To:Cc:Subject:Date:From; b=KoohLSej1xWd5axmAddF0CcCFedUQ4037oeZEkpn8Mw0x2JLW6JcqhFZerArLVRhH XXJLMh4gX0j2P1zpaFrYcEKu+gzmBXNUIvVWeKzqiEfAxAOCmWAnkclhGom4ap4RVu YMcQ285bja9rFlxBBKn3acVJgRxWZIF+920zWwiTfbS+JI66B3roV7ez1OQAOVMB14 +MokmHn4OGzsMjv31YplPSUV/HMXL5pRMt0yoTyoh0uupMkYnRYbUdI1u3kJSqUxsK YUmvZ+D8v6vBpxw6OtiKJqvDA762HFWgJuugaaV4c9fy41Ihwk30dqqdk7wwLrWnFb GYQhGMeYBdgMQ== From: "Rob Herring (Arm)" To: soc@kernel.org, Alexander Stein , Krzysztof Kozlowski , Conor Dooley , Joel Stanley , Andrew Jeffery , Dinh Nguyen , Andrew Lunn , Gregory Clement , Sebastian Hesselbarth , Avi Fishman , Tomer Maimon , Tali Perry , Patrick Venture , Nancy Yuen , Benjamin Fair , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Vladimir Zapolskiy , Mark Jackson , Tony Lindgren , Michal Simek Cc: Krzysztof Kozlowski , Kevin Hilman , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, openbmc@lists.ozlabs.org, imx@lists.linux.dev, linux-omap@vger.kernel.org Subject: [PATCH v2] ARM: dts: Fix undocumented LM75 compatible nodes Date: Fri, 16 Aug 2024 10:47:14 -0600 Message-ID: <20240816164717.1585629-1-robh@kernel.org> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-omap@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 "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. Alexander Stein says the i.MX53 boards are a NXP LM75A as well. NXP makes a LM75A and LM75B. Both are 11-bit resolution and 100ms sample time. The "national,lm75a" is 9-bit, so "national,lm75b" is the closest match for both NXP variants. While we're here, fix the node names to use the generic name "temperature-sensor". Reviewed-by: Krzysztof Kozlowski Reviewed-by: Kevin Hilman # am335x-nano.dts Signed-off-by: Rob Herring (Arm) Reviewed-by: Alexander Stein # imx53-mba53.dts, imx53-tqma53.dtsi --- SoC maintainers, Please take this directly for v6.12. v2: - Also use "national,lm75b" on i.MX53 boards. --- .../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@54 { &i2c12 { status = "okay"; temperature-sensor@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@1f { #gpio-cells = <2>; }; - temp: lm75@48 { - compatible = "lm75"; + temp: temperature-sensor@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@4c { - compatible = "lm75"; + temp1: temperature-sensor@4c { + compatible = "ti,tmp75c"; reg = <0x4c>; }; /* U27 temperature sensor placed near RTC battery */ - temp2: nct75@4d { - compatible = "lm75"; + temp2: temperature-sensor@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@4 { reg = <4>; // INLET1_T - lm75@5c { - compatible = "ti,lm75"; + temperature-sensor@5c { + compatible = "national,lm75"; reg = <0x5c>; }; }; @@ -543,8 +543,8 @@ i2c@5 { reg = <5>; // OUTLET1_T - lm75@5c { - compatible = "ti,lm75"; + temperature-sensor@5c { + compatible = "national,lm75"; reg = <0x5c>; }; }; @@ -555,8 +555,8 @@ i2c@6 { reg = <6>; // OUTLET2_T - lm75@5c { - compatible = "ti,lm75"; + temperature-sensor@5c { + compatible = "national,lm75"; reg = <0x5c>; }; }; @@ -567,8 +567,8 @@ i2c@7 { reg = <7>; // OUTLET3_T - lm75@5c { - compatible = "ti,lm75"; + temperature-sensor@5c { + compatible = "national,lm75"; reg = <0x5c>; }; }; @@ -697,8 +697,8 @@ i2c@3 { reg = <3>; // M2_ZONE_T - lm75@28 { - compatible = "ti,lm75"; + temperature-sensor@28 { + compatible = "national,lm75"; reg = <0x28>; }; }; @@ -709,8 +709,8 @@ i2c@4 { reg = <4>; // BATT_ZONE_T - lm75@29 { - compatible = "ti,lm75"; + temperature-sensor@29 { + compatible = "national,lm75"; reg = <0x29>; }; }; @@ -721,8 +721,8 @@ i2c@5 { reg = <5>; // NBM1_ZONE_T - lm75@28 { - compatible = "ti,lm75"; + temperature-sensor@28 { + compatible = "national,lm75"; reg = <0x28>; }; }; @@ -732,8 +732,8 @@ i2c@6 { reg = <6>; // NBM2_ZONE_T - lm75@29 { - compatible = "ti,lm75"; + temperature-sensor@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@48 { - compatible = "lm75"; + compatible = "national,lm75"; reg = <0x48>; status = "okay"; }; @@ -208,8 +208,8 @@ lm75@48 { &i2c1 { clock-frequency = <100000>; status = "okay"; - lm75@48 { - compatible = "lm75"; + temperature-sensor@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..0d336cbdb451 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@20 { gpio-controller; }; - sensor2: lm75@49 { - compatible = "lm75"; + sensor2: temperature-sensor@49 { + compatible = "national,lm75b"; 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..c34ee84bd716 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@8 { interrupts = <6 4>; /* PATA_DATA6, active high */ }; - sensor1: lm75@48 { - compatible = "lm75"; + sensor1: temperature-sensor@48 { + compatible = "national,lm75b"; 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@1d { reg = <0x1d>; }; - lm75@48 { - compatible = "nxp,lm75"; + temperature-sensor@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@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@24 { }; temperature-sensor@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@49 { + temperature-sensor@49 { status = "okay"; - compatible = "lm75"; + compatible = "st,stlm75"; reg = <0x49>; };