From patchwork Thu Aug 8 16:49:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Rob Herring \(Arm\)" X-Patchwork-Id: 817906 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 30A2B18EFD6; Thu, 8 Aug 2024 16:49:49 +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=1723135790; cv=none; b=cYnrPswY5ZW4zgFEmPaRrZ5HOmOqwpAHTMM0woPfHQzezvTm1E1K965cxjcXI0K2F2sTOdJrMPOFzfYFa934hluPX01B98Bq7mKmA+FtFANCNSWI8tsCXAjHjQOzVSbvmpTIbxHk3C1gzDh49jmrAtYK/HQORwLKOdjLS8bsSzQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723135790; c=relaxed/simple; bh=XTwEvmp5OlD/iluIen7qkHkb3qmv9F4vq/Wk3TaBQLE=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=AJIsWlAgUISODpPIfArz+eJ8YPb1YDHOrmbtBJHTrjKOwCLtMoOeOSr7xK0mgV+M0zgZzSB0XtOCV8FvfVxlFM8P69ZOB9UJvFfR4FbLS8wWz31R0tsMJzNexuRz9lJGZCf8qtoDKJ8M4veW0xV7NWF0qDyq/YjWyMT7JCUnCFw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=YQUmqMJy; 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="YQUmqMJy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 84D86C32782; Thu, 8 Aug 2024 16:49:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1723135789; bh=XTwEvmp5OlD/iluIen7qkHkb3qmv9F4vq/Wk3TaBQLE=; h=From:List-Id:To:Cc:Subject:Date:From; b=YQUmqMJyqdU4oeEzrlYd2G6SWv53HZ2MNeqqm+529DVoYhZma7BOnqdeO+undARkA tLe18k5cKOl87nbLPQj7lWqVZbmdsohCCXrhwpSFzmjHCEgNMJL8z4ptE3+Qww00lJ I68OcY2eRcX+9jfgONKofteISCVinfkzpTjiaDu/oV2TmAt/HEbRHy62b2ku4ru1TE isN9kHOSM8E2fuWsXi0db+gAsb7P3bw74ueRbInjtXL6CGN8WZWI/Rpp77/jUamawL rbPVK65DaCoN4543jRvqInPDWVHQ6agGVGStBHPrfRDHtGFXc6cUr+gze/rTGg2j4m g01K8W2U3137w== From: "Rob Herring (Arm)" To: soc@kernel.org, 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: 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] ARM: dts: Fix undocumented LM75 compatible nodes Date: Thu, 8 Aug 2024 10:49:38 -0600 Message-ID: <20240808164941.1407327-1-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. 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) Reviewed-by: Krzysztof Kozlowski --- 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@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..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@20 { gpio-controller; }; - sensor2: lm75@49 { - compatible = "lm75"; + sensor2: temperature-sensor@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@8 { interrupts = <6 4>; /* PATA_DATA6, active high */ }; - sensor1: lm75@48 { - compatible = "lm75"; + sensor1: temperature-sensor@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@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>; };