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{ "id": 2234864, "url": "http://patchwork.ozlabs.org/api/1.2/covers/2234864/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-i2c/cover/20260508-k1-i2c-ilcr-v7-0-8c2dde5c3ed5@linux.spacemit.com/", "project": { "id": 35, "url": "http://patchwork.ozlabs.org/api/1.2/projects/35/?format=api", "name": "Linux I2C development", "link_name": "linux-i2c", "list_id": "linux-i2c.vger.kernel.org", "list_email": "linux-i2c@vger.kernel.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260508-k1-i2c-ilcr-v7-0-8c2dde5c3ed5@linux.spacemit.com>", "list_archive_url": null, "date": "2026-05-08T07:25:23", "name": "[v7,0/2] i2c: spacemit: improve clock handling and cleanups", "submitter": { "id": 91240, "url": "http://patchwork.ozlabs.org/api/1.2/people/91240/?format=api", "name": "Troy Mitchell", "email": "troy.mitchell@linux.spacemit.com" }, "mbox": "http://patchwork.ozlabs.org/project/linux-i2c/cover/20260508-k1-i2c-ilcr-v7-0-8c2dde5c3ed5@linux.spacemit.com/mbox/", "series": [ { "id": 503337, "url": "http://patchwork.ozlabs.org/api/1.2/series/503337/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-i2c/list/?series=503337", "date": "2026-05-08T07:25:24", "name": "i2c: spacemit: improve clock handling and cleanups", "version": 7, "mbox": "http://patchwork.ozlabs.org/series/503337/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2234864/comments/", "headers": { "Return-Path": "\n <linux-i2c+bounces-17312-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-i2c@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=linux.spacemit.com header.i=@linux.spacemit.com\n header.a=rsa-sha256 header.s=mxsw2412 header.b=Gzql4u53;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; 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smtp.subspace.kernel.org;\n dmarc=none (p=none dis=none) header.from=linux.spacemit.com;\n spf=none smtp.mailfrom=linux.spacemit.com;\n dkim=pass (1024-bit key) header.d=linux.spacemit.com\n header.i=@linux.spacemit.com header.b=Gzql4u53;\n arc=none smtp.client-ip=54.207.19.206", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.spacemit.com;\n\ts=mxsw2412; t=1778225135;\n\tbh=aDafb0KThGoqOueki83VGOVa8B/S9bZP2j/TNRMvg7Y=;\n\th=From:Subject:Date:Message-Id:MIME-Version:To;\n\tb=Gzql4u53bknGCFHEU8YK+ATkJw1FMDjXeccmTzW2824yTe8yaeN9j0T4txiyk+ijk\n\t nDp2Wyg25oAvUXH2FQ3R62oRHkVNssoqYbQar9+rXRMm/XQVMT+pKIem5/XOCdYKyY\n\t 50wUwz441+DAzonWhX5ox16ossQGV6A3ar9M/MHQ=", "X-QQ-mid": "esmtpgz13t1778225128t866bb93f", "X-QQ-Originating-IP": "ouTyUzmBkrF1W39rEIzn8KMC43v4OoeI/pgFflwPQjQ=", "X-QQ-SSF": "0000000000000000000000000000000", "X-QQ-GoodBg": "0", "X-BIZMAIL-ID": "9382545522023586711", "EX-QQ-RecipientCnt": "8", "From": "Troy Mitchell <troy.mitchell@linux.spacemit.com>", "Subject": "[PATCH v7 0/2] i2c: spacemit: improve clock handling and cleanups", "Date": "Fri, 08 May 2026 15:25:23 +0800", "Message-Id": "<20260508-k1-i2c-ilcr-v7-0-8c2dde5c3ed5@linux.spacemit.com>", "Precedence": "bulk", "X-Mailing-List": "linux-i2c@vger.kernel.org", "List-Id": "<linux-i2c.vger.kernel.org>", "List-Subscribe": "<mailto:linux-i2c+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-i2c+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "X-B4-Tracking": "v=1; b=H4sIAAAAAAAC/3XMywrCMBCF4VeRrB2ZxFxaV76HuGiTUQd7kUSLI\n n1304KIoMzqHzjfUySKTElsFk8RaeDEfZfDLRfCn6ruSMAht1CojETp4CyBlQdufARfqiIYJI3\n uIPLiEunA91nb7XOfOF37+JjxQU/f386gQQJR0CWuyYe63Dbc3e6rdKk8tXxd+b4VEziYD6KU/\n UYMINSmQFe7EJDsX8S+EYtald+IzYj0rjL5ilrpn8g4ji+CWZepOQEAAA==", "X-Change-ID": "20251017-k1-i2c-ilcr-c928d50e407f", "To": "Andi Shyti <andi.shyti@kernel.org>, Alex Elder <elder@riscstar.com>,\n Yixun Lan <dlan@kernel.org>, Yixun Lan <dlan@kernel.org>", "Cc": "linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org,\n linux-riscv@lists.infradead.org, spacemit@lists.linux.dev,\n Troy Mitchell <troy.mitchell@linux.spacemit.com>", "X-Mailer": "b4 0.15.2", "X-Developer-Signature": "v=1; a=ed25519-sha256; t=1778225126; l=1169;\n i=troy.mitchell@linux.spacemit.com; s=20250710; h=from:subject:message-id;\n bh=t0iT1saDNopm8N/Dw0qzpSNK32VVGz1bHAzuKx2zHbE=;\n b=atO3d1QAKpNiW7EeJk+pyAE7fkechb/xyiVyTRZuANNFdwFz22JpsTZ7PvViZGUb1z9Wgx1N7\n qljNB8HAmOhDdEFOL0paonoHSXrQuhj0/pIyzE8JR+kNvofIvKUIL6r", "X-Developer-Key": "i=troy.mitchell@linux.spacemit.com; a=ed25519;\n pk=lQa7BzLrq8DfZnChqmwJ5qQk8fP2USmY/4xZ2/MSsXc=", "X-QQ-SENDSIZE": "520", "Feedback-ID": "esmtpgz:linux.spacemit.com:qybglogicsvrgz:qybglogicsvrgz3a-0", "X-QQ-XMAILINFO": "NbSHHwExauhJl9MSvgO5pMTq6cDn06f3nu8ha6dgkWRsvn/pCD412Gvl\n\tf8x4KAI4CAlRM5KiuwkiG+gNMpwsL8OM9No7Y1pY20Ru7x9n94yjvt8VMKB4V3g4dlANJ6g\n\tErl0p9RoXeqP4hwDDw+WoTxcKkg3mf/KE2UzcdRaKpdnOYkb/JJ/d4boT8z5QoNu1Z3BGYw\n\tqREVu4pI9w+x1GU4LJQ6PQ8ws2Iy0cmKZaS58pmh4DxmuiX8LRbLnWU2kWTTdgQUjPcWrjc\n\tYpDuCIuI4ZbIAlPeJkhs1jCGeU7L6RAboq1px3UAGfIIIqO5kIrgfuYi81JwU28G4VIlH9Z\n\txOSJVipu0PdEfBsVpIRfsb/uURzihbZQYFXQy2QkP40oY7Wrl3siQdJv8GPUgnoHKBGByPu\n\t/z+FnC7eVYQf2LKnYyfGSV8b0KP0G8ZIjBi/Qw/M+NUuzZe1BhCdVGCWdiFzs6GKU5215bt\n\t8tssFM+nuSpVxVa3XaG0KeVn4EAn30F+hE+EiXoQ8DXgBxQh/ZePRLIIDtn9i850x+rOsFA\n\tT1ZrnxeGcCXWGxW6ikd2Mq11/OBCSDsS+A58LpLgiPgr27Gax1n/HwIfeJp7wcpK/DwU0UU\n\tiziEWL7u+As2ZDrm9ucJ8kW41+SiBg+pljpfRHC3ZpxBWp3IfLySuQTXTkx01DH0s+tVRXc\n\tlMouKnlqKKv+UGcUskh46BXx2UvovS3/FhGavrvXv9bLfu7rNoZy+9Su9MbhUVGnGSAOfhL\n\tu+9jUvl3FW2MlbI1KSVwKySHBwUcZDYr8vliw39NmHuFxt2LJWpjy+6ZEFT2zpEcjlww/ax\n\tKMuwCPNa3DHrV87nPiZohCg/3HRpDzr/MrZRbEgT+mPOozZoIOd36XEia7MG53US4E0Y5IR\n\tkufTXR6NkkIxfk4whD+AySonweZVGu5HPzlAPyzFtTjD+79ISJEaxw4HBzKSiDG1AYXIVs9\n\tJ/2lAeY7wxcDkWM2L6kTTj1zHxvJiFwLvit8Dpy+rj++N2FDVupXGIqUBL56DS2SJ86yQD0\n\t4C249ms3t5ZGUtz+70H9721w7Ns/4ZOGFbNMikPjmHCJ1ysUOA8cVZYdS3UZ9dQO507zS77\n\tgkhe8lO0CckUhjCNOLEGiPq/VzM5WUhwXNqZpC7C28lZ11ErsEljCLMrNUOAKfmGrX3aUWr\n\tH4y1oqJH5x8EyZNvTwS5B4G1Jg==", "X-QQ-XMRINFO": "Mp0Kj//9VHAxzExpfF+O8yhSrljjwrznVg==", "X-QQ-RECHKSPAM": "0" }, "content": "This patch series contains a set of small improvements and cleanups for\nthe SpacemiT I2C controller driver.\n\nThe main change in this series is to improve SCL frequency accuracy by\nconfiguring the ILCR register based on the requested clock rate, rather\nthan relying on the hardware reset defaults.\n\nThe ILCR is exposed as a managed clock via the Common Clock Framework,\nallowing the driver to program appropriate divider values for standard\nand fast modes.\n\nIn addition, the series removes a spurious warning when the optional\nclock-frequency DT property is absent.\n\nSigned-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>\n---\nTroy Mitchell (2):\n i2c: spacemit: configure ILCR/IWCR for accurate SCL frequency\n i2c: spacemit: drop warning when clock-frequency property is absent\n\n drivers/i2c/busses/Kconfig | 2 +-\n drivers/i2c/busses/i2c-k1.c | 178 +++++++++++++++++++++++++++++++++++++++++---\n 2 files changed, 168 insertions(+), 12 deletions(-)\n---\nbase-commit: 9b45dba17a6b3cede80706d287d8d2fb9087bfa9\nchange-id: 20251017-k1-i2c-ilcr-c928d50e407f\n\nBest regards,\n-- \nTroy Mitchell <troy.mitchell@linux.spacemit.com>" }