From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=209.85.216.54 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794258115; b=MB4c1MDWuky8llAJH1AVs/aqIs/s+800zgANHx9DDULeJ/WDraAIP2mq4m1G+VhYhjnx RmTVqoVa7u7BQEv7Xi7me12//p5w5+pKSv+CfoJmC8iDBV/7tRnn+yTJzDbKy3iZj7aXg HkwqYfPY2udGLUFwB2NQWjcQcRzk7TDnM9YCzBPTY7/sdwAqVECaOF7JBHKXu7ghuXSWj IbikKkyHNI++srCxozTS70DOc8hgZOnwBp7KwKAR2BfOVI/7W5lTNV+VzCX87RCKSSF/h rdOtj0HQyOYomSNkLKvge0Bqr49GlzHpFVMOzhNkF/bzo8dSjGgZJOMqHgJv8U4/lMQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794258115; h=DMARC-Filter:Received:DKIM-Signature:X-Google-DKIM-Signature: X-Forwarded-Encrypted:X-Gm-Message-State:X-Gm-Gg:X-Received:Received: From:To:Cc:Subject:Date:Message-ID:X-Mailer:MIME-Version: Content-Transfer-Encoding; bh=1rRofamHWsgQtnXWvZBbAiHKmjpBdt9GxPKw93w6wfI=; b=aIONLNsfkuC9ypFKGW+DGlDfrVXsPZ5HmF4sFmfT/XXGZyTfbKA0tF/BrYaxZsxouZgA Ib9uZYAbVqpodaFe3e2U4YglG4FfJhRcvv+3dI4SLxHgkzMfgCgHDaQqHkKEIH1pxfPvh vgEH8y0gSwaedGPhQD6xHd+W4FexEQI3GFuq8M4f8dLSDn4K1SFSY2GYGSTsy8aoC8Xa4 q8k7S6e1CtMiFQyr2UlENRi7e4z0l1pmwM4tIHIxwF8QU7yOOu5vfiQSGGhCU66dVPVud XX9vAH0YgweE2n8Bv846GtxtvcpnayLn+YyjNpXgu70EoWksWqL+nya75aUfdybPK7w== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20260707 header.b=D5L6amhx; arc=none smtp.remote-ip=209.85.216.54 Received: from mail-pj1-f54.google.com (mail-pj1-f54.google.com [209.85.216.54]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B8ED6606A325 for ; Mon, 9 Nov 2026 21:01:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org B8ED6606A325 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20260707 header.b=D5L6amhx Received: by mail-pj1-f54.google.com with SMTP id 98e67ed59e1d1-3ae1b34e0d2so745913a91.1 for ; Mon, 09 Nov 2026 13:01:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20260707; t=1794258114; x=1794862914; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to:content-type; bh=1rRofamHWsgQtnXWvZBbAiHKmjpBdt9GxPKw93w6wfI=; b=D5L6amhxFSoDqc8GwvGK3NvVz5o+I0AQvBDbqUKgOzZ/CdW25tCh9hjypnl+Xpd2ve HHub+xs/2/NInY4mxfESNkENa6n9PPadk9TlwMOLuchIADPTzqhp7IRsub52uCgO4VqX +FNiv7i/pAKGWeOaHu5/27nUSNVhWxpcNRsFjHMsR7rGe6tmzt0NFkJ80SKfoRiz+K+C iTov9Pz6KcZ5UuU/2vHccxPKHJ3hOY1k2afJUiOIn0HKH4uzJcS6WLUv9aFoUom/GSxs jOl1dWq49VnmO2BQucHm5wjdl+6ZhZ7azuhhvzWPTHhxZwnNZvM225Bs5xRrdSKCfb7g iRyQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1794258114; x=1794862914; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=1rRofamHWsgQtnXWvZBbAiHKmjpBdt9GxPKw93w6wfI=; b=OSgJ3sD+6A2vUxNZNZcBEsqMfrSNwrFP0BeUCGD+wNmAVAwir5eUpD48FOxrjLYnET Zdj0Dg9sJ2n2pL5WpvlSVq2aDZk8AZu4OOb8pw9bkHtYhGQ/ezbUFRWr9koA4WBEz4+z vox1ts0ql4EowGy9y5za54YmSVjJHqmiaNgt3dCbGb1gQf87sxmja5YoFy7mBmivxTea +q6uoXyhn/mlERggNzM+X6RfUxnpTtuu+33oKPPFPkjyOaPUH4BERWnzAR4xMrFnuBa/ BnLHybNySq9jj7F9QLmBADoIPs8xjC8hnu8cV7gIMeSOd7lS5rvpp7Df1Brp9UIr2pQA URFQ== X-Forwarded-Encrypted: i=1; AL+hErE41du4/CssrMhtJ2v5+J8FlTnoL+m9qF1GVRTelxB91X5sPDKtzgAipIWkHQuHimQRdUMHfGUj+Ow=@vger.kernel.org X-Gm-Message-State: APuU4Z/jOg+njcCjLqHdUHi3Xnc/ohMdVKtiroR70rdXsWORaWpxPj9O kIGPo/oQvurk1pBaeQSA5BpZdIgRXwvSztkCKmt/x8SyuMEEqZsF1WHm X-Gm-Gg: AYBFou143+HO/jQHlufp2m40hOEBwevD9McqeUDkFIp/An6jdkGBS4aHVkPphpYlzY6 rLoI1808mq6yR+vg8HzWFcLKDvYj16vljeM9KKbUUCP24rmhmFHEWZMQpGoeK0tmNgFcwyXFEJi 4PNAYIoNufwVNx2x8+N7Kvi/zectopoXEL67NNUK3vRjxv5C3z6eH6FlqYLOjgg9d8AyYDP8KQa 331Cem+xN2KH4hJTXhRmy59OXmZ7TsNnGa3d4HICTDYP76j/1mNjjSpaDK4l+H+beNhP8tDkmAG P/VRJh0vgBhyptVGxm6/p1oUC3fUZOeSXjNRyjI8iLjLDG6OnWbE5DEizzJ1RgqUZ9P7jINggXQ Fa0VvdPg3atkcaWNIui5Eb9w3fJI5iUnMZVaGWkuxiBVzbEaKYH3nxDuC850Irfd26NWfv0Dvpi igI6HV4tuFZKRk6ltEKvYoFTQ3e/x5Os2Ia2l6QWFibHYWqL01ViveVPx545LF2fEmYKBwLEbWs VKEWwwLlmX+qwCysOndWf5qdN4UZvvG0qAXeAwZc2u89e87qSu8PeFNG1AE0AXbRBOaE7kxbW8r Os/tf6Jqy5e1Zb9UajY6ot+hVQt4GxOY3rmXWAR4MjSgQTtPtseNKDJDn55qN+m/f6lKfxgAeQc d1qM6YImNmFIFZoI8GsDApAZeRaTSyaHfLt3o7kUG5SNhdf248CqPHnHi0l3R1RaGlRWUWOHuaA WwjmG2VB5m4c8Arh75iUeVbBofoKdwfntuTQEOQBsh X-Received: by 2002:a17:90b:3e4c:b0:3ab:be66:ddd3 with SMTP id 98e67ed59e1d1-3b1679e9575mr500295a91.32.1794258114035; Mon, 09 Nov 2026 13:01:54 -0800 (PST) Received: from sid-dev-env.cgrhrlrrq2nuffriizdlnb1x4b.xx.internal.cloudapp.net ([4.155.54.158]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3b168ed00d2sm275299a91.1.2026.11.09.13.01.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Nov 2026 13:01:53 -0800 (PST) From: Siddharth Chintamaneni To: Andi Shyti , Mika Westerberg , "Rafael J . Wysocki" Cc: Andy Shevchenko , Len Brown , linux-i2c@vger.kernel.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, apais@microsoft.com, rlmenge@gmail.com, hargar@linux.microsoft.com, Siddharth Chintamaneni , Jarred White , Jeff Kirsher Subject: [PATCH v2 1/1] i2c: designware: Add ACPI ID MSFT0006 for Microsoft Cobalt SoCs Date: Mon, 9 Nov 2026 21:01:46 +0000 Message-ID: <20261109210146.57766-1-sidchintamaneni@gmail.com> X-Mailer: git-send-email 2.43.0 X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add the MSFT0006 ACPI ID for the DesignWare I2C controller integrated on Microsoft Cobalt SoCs, along with its 300 MHz input clock description in acpi_apd.c. Without an explicit MSFT0006 entry, ACPI device matching falls back to its _CID (APMC0D0F), which configures a 100 MHz input clock instead of the controller's actual 300 MHz clock. Acked-by: Jarred White Acked-by: Jeff Kirsher Signed-off-by: Siddharth Chintamaneni --- drivers/acpi/acpi_apd.c | 6 ++++++ drivers/i2c/busses/i2c-designware-platdrv.c | 1 + 2 files changed, 7 insertions(+) diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c index ea226fd987567..66a7607752d9b 100644 --- a/drivers/acpi/acpi_apd.c +++ b/drivers/acpi/acpi_apd.c @@ -198,6 +198,11 @@ static const struct apd_device_desc hjmc_i2c_desc = { .fixed_clk_rate = 200 * HZ_PER_MHZ, }; +static const struct apd_device_desc msft_i2c_desc = { + .setup = acpi_apd_setup, + .fixed_clk_rate = 300 * HZ_PER_MHZ, +}; + #endif /* CONFIG_ARM64 */ #endif @@ -272,6 +277,7 @@ static const struct acpi_device_id acpi_apd_device_ids[] = { { "HJMC3001", APD_ADDR(hjmc_i2c_desc) }, { "LECA0002", APD_ADDR(leca_spi_desc) }, { "LECA0003", APD_ADDR(leca_i2c_desc) }, + { "MSFT0006", APD_ADDR(msft_i2c_desc) }, { "NXP0001", APD_ADDR(nxp_i2c_desc) }, #endif { } diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 13dd7c50486a4..cf364f3c26199 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -280,6 +280,7 @@ static const struct acpi_device_id dw_i2c_acpi_match[] = { { .id = "INT3433" }, { .id = "INTC10EF" }, { .id = "LECA0003" }, + { .id = "MSFT0006" }, { } }; MODULE_DEVICE_TABLE(acpi, dw_i2c_acpi_match); -- 2.45.4