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 B36B432AABC for ; Tue, 3 Feb 2026 23:39:17 +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=1770161961; cv=none; b=LL3FLJwQqsvd9ffRcPlD+hNraOB3nHfANqFeMQ3+ETzIWlxD1Z+WwyKjmA0OGwwTVO+KqejSGbtIyAz8PQOEqkKpf0jlgkS+EC12XivUwXRRVeWkSHP4lGTAW6fx3Ys8O5FAtA1hmEop3MQkobAV8hnekVnh8m7G3W4VeL9BAGQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770161961; c=relaxed/simple; bh=ICAsPP8FmhLCwFF24db3OYtnSUZ44j3+wW3KZVZeRX8=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=rHjEXSGmJp9nuAT14rGU4RFEr/vD0X9E9g/w4PJDg3yfAt5//vPJ1O1vDXxQGfsQQ0m7GFbkoX/My+bHKU+aud8JFHI4sb3mGyR9qMhCaV5UmDzWT1mqRuULOOWtZ7IGU5UPZygsK/p6B+P10VVgg2QdZTbaq55raFEdmGifASA= 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=wGcDwXjV; 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="wGcDwXjV" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-02.galae.net (Postfix) with ESMTPS id 0C7B61A2BD0; Tue, 3 Feb 2026 23:39:16 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id C107D60728; Tue, 3 Feb 2026 23:39:15 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id E1B04119A8888; Wed, 4 Feb 2026 00:39:13 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1770161955; h=from:subject:date:message-id:to:cc:mime-version:content-type; bh=ucYbgMTXu9O2nhpJq8hjASjMhl+lmyesfJEs8TT0QqI=; b=wGcDwXjVNrapnZkeIvMlPeftHCxADa4Zse17UBW8mJzoZiBetVvR3cGLEdXMA4v+ODFDMW C2eWdk/h1sMkW9n4IhyWKqn4M1RLv2CUzti3H5M8LGdpcPXgTjxFIpEhHLoQvLTAB9LuTe xaxofF0MPG4iaTUqdfWKF9XCd1oxVJfQc5MqReSvy5vGtC8cPwvHPXkDRzS8pOSOA9rnSR v9S+HEKBD499mwOtwQupaqkQUcebQQTqVMoA03DIDp8O7cHrBKFjAm5TNdz9gRI9mTYtBm RZB1mvS4ubovEyOZ20fpkavPjdsKSwPciXmUkhpyQz8Sis2oeC8p1P2s9ibn7A== Date: Wed, 4 Feb 2026 00:39:12 +0100 From: Alexandre Belloni To: Linus Torvalds Cc: linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [GIT PULL] I3C changes for 6.20 Message-ID: <20260203233912448420e5@mail.local> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Last-TLS-Session-Version: TLSv1.3 Hello Linus, Here is the i3c subsystem pull request for 6.19. Most of the work has been concentrated on mipi-i3c-hci and in particular its pci variant. The renesas and dw drivers have also seen a few improvements. The following changes since commit 8f0b4cce4481fb22653697cced8d0d04027cb1e8: Linux 6.19-rc1 (2025-12-14 16:05:07 +1200) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux.git tags/i3c/for-6.20 for you to fetch changes up to ed318b3fb4ab317c533d38d160326fa5d7569497: i3c: dw-i3c-master: fix SIR reject bit mapping for dynamic addresses (2026-01-31 00:05:22 +0100) ---------------------------------------------------------------- I3C for 6.20 Subsystem: - add sysfs entry and attribute for Device NACK Retry count Drivers: - dw: Device NACK Retry configuration knob - mipi-i3c-hci: support for Multi-Bus Instances, Runtime PM support, System Suspend support - renesas: suspend/resume support ---------------------------------------------------------------- Adrian Hunter (35): i3c: mipi-i3c-hci: Remove duplicate blank lines i3c: mipi-i3c-hci: Stop reading Extended Capabilities if capability ID is 0 i3c: mipi-i3c-hci: Quieten initialization messages i3c: mipi-i3c-hci-pci: Do not repeatedly check for NULL driver_data i3c: mipi-i3c-hci-pci: Enable MSI support i3c: mipi-i3c-hci-pci: Assign unique device names and IDs for Intel LPSS I3C i3c: mipi-i3c-hci: Allow for Multi-Bus Instances i3c: mipi-i3c-hci-pci: Pass base regs as platform data to i3c core device i3c: mipi-i3c-hci-pci: Convert to MFD driver i3c: mipi-i3c-hci-pci: Add support for Multi-Bus Instances i3c: mipi-i3c-hci-pci: Define Multi-Bus instances for supported controllers i3c: mipi-i3c-hci: Reset RING_OPERATION1 fields during init i3c: mipi-i3c-hci: Ensure proper bus clean-up i3c: master: Update hot-join flag only on success i3c: master: Replace WARN_ON() with dev_err() in i3c_dev_free_ibi_locked() i3c: mipi-i3c-hci: Switch DAT bitmap allocation to devm_bitmap_zalloc() i3c: mipi-i3c-hci: Switch PIO data allocation to devm_kzalloc() i3c: mipi-i3c-hci: Manage DMA deallocation via devres action i3c: mipi-i3c-hci: Cache DAT in memory for Runtime PM restore i3c: mipi-i3c-hci: Introduce helper to restore DAT i3c: mipi-i3c-hci: Extract ring initialization from hci_dma_init() i3c: mipi-i3c-hci: Add DMA suspend and resume support i3c: mipi-i3c-hci: Refactor PIO register initialization i3c: mipi-i3c-hci: Add PIO suspend and resume support i3c: mipi-i3c-hci: Factor out software reset into helper i3c: mipi-i3c-hci: Factor out IO mode setting into helper i3c: mipi-i3c-hci: Factor out core initialization into helper i3c: mipi-i3c-hci: Allow core re-initialization for Runtime PM support i3c: mipi-i3c-hci: Factor out master dynamic address setting into helper i3c: master: Introduce optional Runtime PM support i3c: mipi-i3c-hci: Add optional Runtime PM support i3c: mipi-i3c-hci-pci: Add Runtime PM support i3c: master: Add i3c_master_do_daa_ext() for post-hibernation address recovery i3c: mipi-i3c-hci: Add optional System Suspend support i3c: mipi-i3c-hci-pci: Add System Suspend support Adrian Ng Ho Yin (6): i3c: add sysfs entry and attribute for Device NACK Retry count i3c: dw: Add support for Device NACK Retry configuration i3c: dw: use FIELD_PREP for device address table macros i3c: dw: Preserve DAT entry bits when restoring addresses i3c: dw-i3c-master: convert spinlock usage to scoped guards i3c: dw-i3c-master: fix SIR reject bit mapping for dynamic addresses Billy Tsai (1): i3c: Move device name assignment after i3c_bus_init Frank Li (3): i3c: drop i3c_priv_xfer and i3c_device_do_priv_xfers() i3c: master: svc: Initialize 'dev' to NULL in svc_i3c_master_ibi_isr() i3c: Add stub functions when I3C support is disabled Fredrik Markstrom (1): i3c: dw: Initialize spinlock to avoid upsetting lockdep Krzysztof Kozlowski (1): i3c: master: Simplify with scoped for each OF child loop Tommaso Merciai (4): i3c: renesas: Switch to clk_bulk API and store clocks in private data i3c: renesas: Store clock rate and reset controls in struct renesas_i3c i3c: renesas: Factor out hardware initialization to separate function i3c: renesas: Add suspend/resume support Zilin Guan (1): i3c: dw: Fix memory leak in dw_i3c_master_i2c_xfers() Documentation/ABI/testing/sysfs-bus-i3c | 11 + drivers/i3c/device.c | 46 +- drivers/i3c/internals.h | 4 + drivers/i3c/master.c | 213 ++++++++-- drivers/i3c/master/Kconfig | 1 + drivers/i3c/master/dw-i3c-master.c | 121 ++++-- drivers/i3c/master/mipi-i3c-hci/cmd_v1.c | 2 - drivers/i3c/master/mipi-i3c-hci/cmd_v2.c | 2 - drivers/i3c/master/mipi-i3c-hci/core.c | 465 +++++++++++++++------ drivers/i3c/master/mipi-i3c-hci/dat.h | 2 +- drivers/i3c/master/mipi-i3c-hci/dat_v1.c | 46 +- drivers/i3c/master/mipi-i3c-hci/dma.c | 171 +++++--- drivers/i3c/master/mipi-i3c-hci/ext_caps.c | 58 ++- drivers/i3c/master/mipi-i3c-hci/ext_caps.h | 1 - drivers/i3c/master/mipi-i3c-hci/hci.h | 17 +- drivers/i3c/master/mipi-i3c-hci/mipi-i3c-hci-pci.c | 186 ++++++--- drivers/i3c/master/mipi-i3c-hci/pio.c | 64 ++- drivers/i3c/master/renesas-i3c.c | 319 ++++++++------ drivers/i3c/master/svc-i3c-master.c | 4 +- include/linux/i3c/device.h | 24 +- include/linux/i3c/master.h | 11 + include/linux/platform_data/mipi-i3c-hci.h | 15 + 22 files changed, 1269 insertions(+), 514 deletions(-) create mode 100644 include/linux/platform_data/mipi-i3c-hci.h -- Alexandre Belloni, co-owner and COO, Bootlin Embedded Linux and Kernel engineering https://bootlin.com