From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpout-02.galae.net (smtpout-02.galae.net [185.246.84.56]) (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 CB6C9329E44; Sun, 14 Jun 2026 20:56:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.246.84.56 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781470579; cv=none; b=PA7osv0d/aMEKIn7TKGceDuK2qmygDNjK2GsP53VfgUemfwH5kpyYZPYvs3WL1/RRIo+4UNrp3kRMDa58cTzWfzV+RoX9fRaOc+PPR+R4/g1jAmV4yCgvnBLcmzQvTNmqE5/bDz/O9MByjBl504Qx1NyV1eiSS1VlyO+IcXJgRI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781470579; c=relaxed/simple; bh=k2TwFRVIGo3UAuKkEeMphcyHzyDfz5boVP642BqB7Cw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=eMbyAm4mZTzw6huJlVhLenF/9cxV5IrIaHgHeN+bnWltMjfRXOfjELNYA/IeD02R9G89/nYxfLLdV2iWYYulUqkijQZAei0vUXW1gcU8Dis1HzNmRn09z0DNq0N7ibrhhs027RA/ZdMtybguEZ2NZoB9FFgljGn+rZwWcNfXQNc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=UtciRf7y; arc=none smtp.client-ip=185.246.84.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="UtciRf7y" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-02.galae.net (Postfix) with ESMTPS id 62D801A391E; Sun, 14 Jun 2026 20:56:15 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id D89E260014; Sun, 14 Jun 2026 20:56:14 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 7971E106C8A10; Sun, 14 Jun 2026 22:56:07 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1781470573; h=from:subject:date:message-id:to:cc:mime-version:content-type: in-reply-to:references; bh=1s1sT/c6GY/MY7ZVSH3SGCUIl59lEqQG0Hqj2B2xQT8=; b=UtciRf7y+G/d7pfxrZk1IlUaUbXDpp2k8dQXrpLeAjNf2O8ktUpBHnQAgy52argPBpPzsK ePID2nUloK8aMJsFsRJA50rAKX+xuLB3wBNvdwdZAH29K6w9cZ3ftdI0xF8TKIagm7jMhh a4AaPWhm1RH3e0FyXX4DFz0KMr0AKwxFAbNhoqRqHhdNDjtye7kkmXwj3M2cD0o2CHM/WW hNRn9yS0sYXHEUZepQ9eLYnfZHGllSN/7kRptBXX5ZUkvoG9gr+UJmFFEJvSqBh/9Poopm acBAjonS+9lmPIlUIT4emxxr1P9x6eWxGB3JzZAsnG0UeXXqVBdQDNdh2768dg== Date: Sun, 14 Jun 2026 22:56:06 +0200 From: Alexandre Belloni To: Akhil R Cc: Frank Li , Rob Herring , Krzysztof Kozlowski , Conor Dooley , "Rafael J . Wysocki" , Saket Dumbre , Len Brown , Guenter Roeck , Philipp Zabel , Bjorn Andersson , Geert Uytterhoeven , Dmitry Baryshkov , Arnd Bergmann , Eric Biggers , Wolfram Sang , Miquel Raynal , Jon Hunter , Thierry Reding , linux-tegra@vger.kernel.org, linux-i3c@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, acpica-devel@lists.linux.dev, linux-hwmon@vger.kernel.org Subject: Re: [PATCH v3 00/13] Support ACPI and SETAASA device discovery Message-ID: <2026061420560674ab6fb9@mail.local> References: <20260423085718.70762-1-akhilrajeev@nvidia.com> Precedence: bulk X-Mailing-List: linux-tegra@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260423085718.70762-1-akhilrajeev@nvidia.com> X-Last-TLS-Session-Version: TLSv1.3 Hello, On 23/04/2026 14:26:59+0530, Akhil R wrote: > This patch series adds SETAASA device discovery to the I3C subsystem, > enabling support for SPD5118 temperature sensors found on DDR5 memory > modules. The changes also add ACPI support for all existing DAA > methods like SETDASA, SETNEWDA as well as I2C devices on I3C bus. > > SPD5118 and similar devices on DDR5 memory modules differ from typical > I3C devices in their initialization. They use SETAASA broadcast CCC > instead of ENTDAA for address assignment, and per JEDEC specification, > are not required to have a Provisioned ID or implement standard device > information CCC commands (GETPID, GETDCR, GETBCR). > > The series enables to describe all I3C and I2C devices on both Device > Tree and the ACPI table, using unified device property APIs throughout > the I3C core and the Synopsys DesignWare I3C master driver. > > Please note that the series modifies drivers across multiple subsystems, > like Device Tree bindings, ACPI, I3C and HWMON. > > v2->v3: > * Fix maximum value and indent bit list for mipi-i3c-static-method. > * Move I3C_ADDR_METHOD_* macros to dt-bindings header. > * Drop ACPICA commit IDs, keep only the Link: tags. > * Revert the change which proceeds to register other devices if SETAASA > is not supported so that it aligns with the rest of the driver and to > avoid the issues pointed by Sashiko. > * Rework multiple commit messages. > > v1->v2: > * Added patch to remove 16-bit addressing support for SPD5118 > * Guard ACPI calls with #ifdef CONFIG_ACPI > * Remove CONFIG_OF guard for of_alias_get_highest_id() > * Mask mipi-i3c-static-method in the driver to select only valid values. > * Proceed to register other devices if SETAASA is not supported. > * Update commit message and links in the description of multiple commits. > > > Akhil R (13): > dt-bindings: i3c: Add mipi-i3c-static-method to support SETAASA > ACPICA: Read LVR from the I2C resource descriptor > i3c: master: Use unified device property interface > i3c: master: Support ACPI enumeration of child devices > i3c: master: Add support for devices using SETAASA > i3c: master: Add support for devices without PID > i3c: master: match I3C device through DT and ACPI > i3c: dw-i3c-master: Add SETAASA as supported CCC > i3c: dw-i3c-master: Add a quirk to skip clock and reset > i3c: dw-i3c-master: Add ACPI ID for Tegra410 > hwmon: spd5118: Remove 16-bit addressing > hwmon: spd5118: Add I3C support > arm64: defconfig: Enable I3C and SPD5118 hwmon > I'd really like to apply this but I would have preferred having an actual ack from Rob on patch 1. Also, you are going to have to rebase on the current i3c-next. Can you do this? Thanks! > .../devicetree/bindings/i3c/i3c.yaml | 31 +- > arch/arm64/configs/defconfig | 3 + > drivers/acpi/acpica/rsserial.c | 6 +- > drivers/hwmon/Kconfig | 9 +- > drivers/hwmon/spd5118.c | 119 +++--- > drivers/i3c/master.c | 354 +++++++++++++++--- > drivers/i3c/master/dw-i3c-master.c | 66 ++-- > include/acpi/acrestyp.h | 1 + > include/dt-bindings/i3c/i3c.h | 3 + > include/linux/i3c/ccc.h | 1 + > include/linux/i3c/master.h | 20 +- > 11 files changed, 463 insertions(+), 150 deletions(-) > > -- > 2.50.1 > > > -- > linux-i3c mailing list > linux-i3c@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-i3c -- Alexandre Belloni, co-owner and COO, Bootlin Embedded Linux and Kernel engineering https://bootlin.com