From nobody Mon Feb 9 03:52:11 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 4AEE61D6AA for ; Fri, 16 Jan 2026 14:29:44 +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=1768573784; cv=none; b=sn4vYN9YzvbJRH6s5CQ4pZ6ls58EmpiCqGCxCQVzGgEbeDiH6zo+HNEGMChtPwvA/MErKe9OLbJaYX5I7cWQBYmQGaFA8rd8FmACNu526JQd0KijHtAQWkKUggNLVjJSGq9WGIciSEnU+VkllT5kd/2OtIgJTgQk1Ton94uu/C8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768573784; c=relaxed/simple; bh=SHH7iUEl2nTecazCzCEtgtA9ilieHML5FncGlcIq09c=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=q89D2a1hy9A9K0F05z/QEHTkwdP/+PTrA0ob7Dz2OLpUxgF5T0431RSt3PLM9kP05XXYLMRx/C1pIMERL5/b1hlTZIka0RkVyo7BvKmGrJyy4ZAd8WSPAxta1KgnYV0poOCmBOZ9RCYaZbXM3iMKf6+yjUwiqylgy07A4mKxD4o= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=sc295c3H; 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="sc295c3H" Received: by smtp.kernel.org (Postfix) with ESMTPS id 1BB71C116C6; Fri, 16 Jan 2026 14:29:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768573784; bh=SHH7iUEl2nTecazCzCEtgtA9ilieHML5FncGlcIq09c=; h=From:Date:Subject:To:Cc:Reply-To:From; b=sc295c3HKztrf+EEoxCDTQanQjezjrUaqa547nO8utT+7A86Ltm7YVQK9fKgcloNI ryfmnmmmUif+3w/xeVyiIYSmo7lMezyBnWsC1SUq4uL0/r79E3/oABm63mQPxh6Sw9 +cDRcfXfuAtMmh0r5cSSqPEAPNh+ap4D/Jz7hoiizQHhtfnSl10P+P01OqQz7tXgOm cAYebT0NSrCkGJN2AlgJkcfXOrVuEJiGq4f6/GD5Y1fzMoqvo4IxBHHVRlt5cxKd0B RoEGvhlVrnka5aucnhutyVOYmE1tJb7mxgURcogy07OcyQSNBWkNOPSmUvEj76L/y3 JD62LmZowHkgA== 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 0BF70C79FBD; Fri, 16 Jan 2026 14:29:44 +0000 (UTC) From: Fredrik Markstrom via B4 Relay Date: Fri, 16 Jan 2026 15:29:42 +0100 Subject: [PATCH v3] 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-v3-1-cf707b6ed75f@est.tech> X-B4-Tracking: v=1; b=H4sIAFVLamkC/43NSw6DIBSF4a0YxqURVKQddR9NYwCv9aYGDRD6M O696MhR0+F/Bt+ZiQeH4Mk5m4mDiB5Hm6I4ZMT0yt6BYpua8JyLnLGKYmGa9tmgxYBqwA80fkI 7jOZBW1lLzriSpdAkAZODDl8bfr2l7tGH0b23r8jW9S82MsqoPplKd0pq4OUFfDgGMD1Z1cj3k vgp8SRBJXRZsE4zWe+kZVm+ZFfuCw0BAAA= 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=1768573783; l=1556; i=fredrik.markstrom@est.tech; s=20260113; h=from:subject:message-id; bh=/KOdTUSpOybjYrl+4vtlouA6tN65XqPMh7VsKfQMXIM=; b=8Hmq4QhdT8feOv8Uo8CnwWHiMPO2HDk8Yz3pp+jxafGGiodUoLEkQhHqpJJh5qRhiEqDzp7Qf 7g1S3zE+n80CNvqys33fMPbEi7l4re8bL33/UKN6PrgBhn+QTloUQY4 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 v3: - EDITME: describe what is new in this series revision. - EDITME: use bulletpoints and terse descriptions. - Link to v2: https://lore.kernel.org/r/20260116-i3c_dw_initialize_spinlock= -v2-1-e56b431fb187@est.tech 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