From nobody Mon Feb 9 03:29:09 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 9CFB7405F7 for ; Fri, 16 Jan 2026 08:41:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768552905; cv=none; b=Z87m1bkUf+GLBcqE/mBrJZuaNlHxNjAn20VpNZsBH8fRHOTENzhJocsH20lQR3Pe3I9UHcy770U5oEOIkbCvky7QtL/0WAW5KlCjSsaQS3Z8Ox9Qk956B8/2654LZFpNrT3Jc87U/OAbDY1HaFkQNAIviwv3KpfrYI5/TY+uPbk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768552905; c=relaxed/simple; bh=GjvS5o2gXGq2CcK52YvX/dOHo/NbQtjTWoin+jWQTwM=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=tYL57OiUzv1kAbFvyhdrMW+oz6VInr80p3++ND8hcUuIWNRZE1SNIHqo3/Bg3ltLzOqwfbLYzusMpdmKO0o0R1VhASuOiLKsiST3XiFpy3V/Wfjnu/0+xlVAnuvGc8bCtyDU/vAGe9SMsgbVF/n/W8G9MCYn7NioRl81ZDLhs1U= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=YYz1dQ6g; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="YYz1dQ6g" Received: by smtp.kernel.org (Postfix) with ESMTPS id 418CCC116C6; Fri, 16 Jan 2026 08:41:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768552905; bh=GjvS5o2gXGq2CcK52YvX/dOHo/NbQtjTWoin+jWQTwM=; h=From:Date:Subject:To:Cc:Reply-To:From; b=YYz1dQ6g7Lsl6Lo7NlT2Ig5PI2/13l24joJn32XV46KALlUmsNlD9vKJMK3UhQv2Z 7a7JZNNCovn3XlaTSYWHjHP+vpkdLvNZbF2yaoJewuixmlhKGvXc3BlrfGxfYhMoS/ zyPShvk2bJi/vRNPMmldwQcpYI4lq142fI0XDiYbavmwUQcjU/saZdg+EjDzLOLuS8 qKpqf3fnlG1fzJmL1WSQKCqDHzyg3o/rxQ9KbT0IDMQw/Gtc1op9Lieo/tQ0GIt4dI A0m+xsyTkhbhuTw5k4UZ77Juh+l4J3hY8mC0gLv3W6y5UxdC91FoGld40yVNoixeYC MNxo6UtnAJKKA== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 305B8D4A612; Fri, 16 Jan 2026 08:41:45 +0000 (UTC) From: Fredrik Markstrom via B4 Relay Date: Fri, 16 Jan 2026 09:41:36 +0100 Subject: [PATCH v2] i3c: dw: Initialize spinlock to avoid upsetting lockdep 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="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260116-i3c_dw_initialize_spinlock-v2-1-e56b431fb187@est.tech> X-B4-Tracking: v=1; b=H4sIAL/5aWkC/43NSw6DIBSF4a2YOy6NULXUUffRGAN4LTc1aIDYh 2Hvpa6gw+8M/rNBQE8YoC028LhSoNlliEMBxip3R0ZDNohSNCXnNaOT6YdnT44iqYk+2IeF3DS bBxvkWQoulKwaDTmweBzptcdvXbalEGf/3r9W/lv/yq6ccaYvptajkhpFdcUQjxGNhS6l9AVZN omgwwAAAA== X-Change-ID: 20260115-i3c_dw_initialize_spinlock-d878212a846b To: Alexandre Belloni , Frank Li , Joel Stanley , Jeremy Kerr Cc: linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org, Jani Nurminen , Fredrik Markstrom , Ivar Holmqvist X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1768552904; l=1325; i=fredrik.markstrom@est.tech; s=20260113; h=from:subject:message-id; bh=cn3RST4SNo9jSm6US+uLLzCCBGl+hGYy8MD0NCviD5E=; b=7n3KMgnjoyny8fHUpEHSdn477HdTh0vUeLPVakWON8Sd4DuiJURHbcLX2a4CO+wz4cPaYnIFR ce7LVed8zdPAE3+tBGSOQYK3Ytj0x4n+DILNioIAeyqY1GehSnxY3t6 X-Developer-Key: i=fredrik.markstrom@est.tech; a=ed25519; pk=0a8IXHEgAX55JPS8VZfTf1sDp7q/oAOf459tDQd40Eg= X-Endpoint-Received: by B4 Relay for fredrik.markstrom@est.tech/20260113 with auth_id=600 X-Original-From: Fredrik Markstrom Reply-To: fredrik.markstrom@est.tech From: Fredrik Markstrom The devs_lock spinlock introduced when adding support for ibi:s was never initialized. Fixes: e389b1d72a624 ("i3c: dw: Add support for in-band interrupts") Suggested-by: Jani Nurminen Signed-off-by: Fredrik Markstrom Reviewed-by: Ivar Holmqvist --- Changes in v2: - Added context in commit message - Link to v1: https://lore.kernel.org/r/20260115-i3c_dw_initialize_spinlock= -v1-1-b9c5bfa8be24@est.tech --- drivers/i3c/master/dw-i3c-master.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/i3c/master/dw-i3c-master.c b/drivers/i3c/master/dw-i3c= -master.c index 889e2ed5bc83..d5b070404056 100644 --- a/drivers/i3c/master/dw-i3c-master.c +++ b/drivers/i3c/master/dw-i3c-master.c @@ -1570,6 +1570,8 @@ int dw_i3c_common_probe(struct dw_i3c_master *master, spin_lock_init(&master->xferqueue.lock); INIT_LIST_HEAD(&master->xferqueue.list); =20 + spin_lock_init(&master->devs_lock); + writel(INTR_ALL, master->regs + INTR_STATUS); irq =3D platform_get_irq(pdev, 0); ret =3D devm_request_irq(&pdev->dev, irq, --- base-commit: 0f61b1860cc3f52aef9036d7235ed1f017632193 change-id: 20260115-i3c_dw_initialize_spinlock-d878212a846b Best regards, --=20 Fredrik Markstrom