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Sun, 14 Jun 2026 23:25:40 -0700 From: Akhil R To: CC: , , , , , , , , , , , , , , , , , , , , , , , , , Subject: Re: [PATCH v3 00/13] Support ACPI and SETAASA device discovery Date: Mon, 15 Jun 2026 06:25:39 +0000 Message-ID: <20260615062539.3225240-1-akhilrajeev@nvidia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <2026061420560674ab6fb9@mail.local> References: <2026061420560674ab6fb9@mail.local> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM2PEPF00003FC5:EE_|SJ5PPF2CD49510F:EE_ X-MS-Office365-Filtering-Correlation-Id: f9c2c01e-af50-4370-ca80-08decaa6f49e X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700016|1800799024|82310400026|23010399003|7416014|376014|22082099003|18002099003|6133799003|3023799007|56012099006|11063799006; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: q5eSdfSxXRdzvMA+DVmPpSPQuspCae6xLucRk86lYdXTLEoXynBlqbtqPFjgFQ6xbeGTzP/Lw9rETq4sl1zWbrU9ExZFi2AvnidoKF2sfhoCcapzQTUwgmIeS8BytC1S0+XEEZLzpmGDs9cWeNDCJfoRNmrHgrG2bwqiuly7KM8fHIj3fzBfoRbGCXfLzbiOUTy2bsbhzKgYPuyySitIH5nEb+E3E3rZ1aMjIIX91QyI8gTjMwQHxkFJctPPf4VjHbsTwjfcx/CxlOb/Iq/DaAA6eNtMT78KxAmWqDmJJlxnSok9FTZXJlWXxYZwxAGb0+PCsWpuHS0C5k2VMo+t2h/zvPAlrK3s3gDJJdrqGjWqwKHGn9X84cgfeEKqcVxWi05JRtv7ujx8nYNbiLvetZnhGopc60LlqdEFDrzAJOjVC+DV1Atc4/iwCAqmg9pS X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Jun 2026 06:25:54.9037 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f9c2c01e-af50-4370-ca80-08decaa6f49e X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.233];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM2PEPF00003FC5.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ5PPF2CD49510F On Sun, 14 Jun 2026 22:56:06 +0200, Alexandre Belloni wrote: > 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? Definitely. I had been addressing the comments from Rob and Saashiko, but got hooked up into somethings else in the last few weeks. I will send v4 soon. Thanks for reaching out. Best Regards, Akhil