From mboxrd@z Thu Jan 1 00:00:00 1970 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 8D56D320A33 for ; Mon, 12 Jan 2026 10:43:56 +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=1768214636; cv=none; b=PjHhyMxc5j7zor+3QvPtmZ5j3J0N7mGfQYjYxr/mWOClXBohrWimSpyM4fI34omaVicMRj/IcYbhOqX74N/xrN1Y7o2etnKIN+oFf6yxIdfSWdzswPVYF9dI+3s2g7ZIMpFCJQO849UUvX8drd6pdbHSTc+bSqzEdia5zvqgUmI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768214636; c=relaxed/simple; bh=sjsu2cBl7OnW6OeqgYcWZ4mSrqoucMmA11+T3ZOMaMY=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=NtG5B/oovuZcAgd2iBHLo7CBa6gCCUzPpZ+tqAPkaeDKXENG9cpkRfHqKUHnJhg0jdbJcxnlggINLDNehK+OM3go1FNUHsrSoPxj4FzKezxuzlt3b+8Iguvo3AZJ2Yzzw5Bs/MZ5vCJURbeYRMFEJ2uXIBbq/FSEKcjcTNyme3g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=TKOeOy0d; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="TKOeOy0d" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BEF6AC19421; Mon, 12 Jan 2026 10:43:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1768214636; bh=sjsu2cBl7OnW6OeqgYcWZ4mSrqoucMmA11+T3ZOMaMY=; h=Subject:To:Cc:From:Date:From; b=TKOeOy0dRUp5KkEDGjBkEECsw6tg6Oqbpq248rKRwx1DaHCZExzbxVUUQDLAM3Bqe BNo6oP1BrMx/Z1i5J8FLVfbG1OuUOteTRyn3+AAmqNWuZpiTkb+eNpWiLHkWuHHCMn 8ezg0c5Zvtvj1DfoTF7AB/rYVhMDklJpqjZM9AJM= Subject: FAILED: patch "[PATCH] gpio: rockchip: mark the GPIO controller as sleeping" failed to apply to 5.15-stable tree To: bartosz.golaszewski@oss.qualcomm.com,heiko@sntech.de,m.szyprowski@samsung.com Cc: From: Date: Mon, 12 Jan 2026 11:43:53 +0100 Message-ID: <2026011253-undone-entwine-9232@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x 20cf2aed89ac6d78a0122e31c875228e15247194 # git commit -s git send-email --to '' --in-reply-to '2026011253-undone-entwine-9232@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 20cf2aed89ac6d78a0122e31c875228e15247194 Mon Sep 17 00:00:00 2001 From: Bartosz Golaszewski Date: Tue, 6 Jan 2026 10:00:11 +0100 Subject: [PATCH] gpio: rockchip: mark the GPIO controller as sleeping The GPIO controller is configured as non-sleeping but it uses generic pinctrl helpers which use a mutex for synchronization. This can cause the following lockdep splat with shared GPIOs enabled on boards which have multiple devices using the same GPIO: BUG: sleeping function called from invalid context at kernel/locking/mutex.c:591 in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 12, name: kworker/u16:0 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 6 locks held by kworker/u16:0/12: #0: ffff0001f0018d48 ((wq_completion)events_unbound#2){+.+.}-{0:0}, at: process_one_work+0x18c/0x604 #1: ffff8000842dbdf0 (deferred_probe_work){+.+.}-{0:0}, at: process_one_work+0x1b4/0x604 #2: ffff0001f18498f8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x38/0x1b0 #3: ffff0001f75f1e90 (&gdev->srcu){.+.?}-{0:0}, at: gpiod_direction_output_raw_commit+0x0/0x360 #4: ffff0001f46e3db8 (&shared_desc->spinlock){....}-{3:3}, at: gpio_shared_proxy_direction_output+0xd0/0x144 [gpio_shared_proxy] #5: ffff0001f180ee90 (&gdev->srcu){.+.?}-{0:0}, at: gpiod_direction_output_raw_commit+0x0/0x360 irq event stamp: 81450 hardirqs last enabled at (81449): [] _raw_spin_unlock_irqrestore+0x74/0x78 hardirqs last disabled at (81450): [] _raw_spin_lock_irqsave+0x84/0x88 softirqs last enabled at (79616): [] __alloc_skb+0x17c/0x1e8 softirqs last disabled at (79614): [] __alloc_skb+0x17c/0x1e8 CPU: 2 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.19.0-rc4-next-20260105+ #11975 PREEMPT Hardware name: Hardkernel ODROID-M1 (DT) Workqueue: events_unbound deferred_probe_work_func Call trace: show_stack+0x18/0x24 (C) dump_stack_lvl+0x90/0xd0 dump_stack+0x18/0x24 __might_resched+0x144/0x248 __might_sleep+0x48/0x98 __mutex_lock+0x5c/0x894 mutex_lock_nested+0x24/0x30 pinctrl_get_device_gpio_range+0x44/0x128 pinctrl_gpio_direction+0x3c/0xe0 pinctrl_gpio_direction_output+0x14/0x20 rockchip_gpio_direction_output+0xb8/0x19c gpiochip_direction_output+0x38/0x94 gpiod_direction_output_raw_commit+0x1d8/0x360 gpiod_direction_output_nonotify+0x7c/0x230 gpiod_direction_output+0x34/0xf8 gpio_shared_proxy_direction_output+0xec/0x144 [gpio_shared_proxy] gpiochip_direction_output+0x38/0x94 gpiod_direction_output_raw_commit+0x1d8/0x360 gpiod_direction_output_nonotify+0x7c/0x230 gpiod_configure_flags+0xbc/0x480 gpiod_find_and_request+0x1a0/0x574 gpiod_get_index+0x58/0x84 devm_gpiod_get_index+0x20/0xb4 devm_gpiod_get_optional+0x18/0x30 rockchip_pcie_probe+0x98/0x380 platform_probe+0x5c/0xac really_probe+0xbc/0x298 Fixes: 936ee2675eee ("gpio/rockchip: add driver for rockchip gpio") Cc: stable@vger.kernel.org Reported-by: Marek Szyprowski Closes: https://lore.kernel.org/all/d035fc29-3b03-4cd6-b8ec-001f93540bc6@samsung.com/ Acked-by: Heiko Stuebner Link: https://lore.kernel.org/r/20260106090011.21603-1-bartosz.golaszewski@oss.qualcomm.com Signed-off-by: Bartosz Golaszewski diff --git a/drivers/gpio/gpio-rockchip.c b/drivers/gpio/gpio-rockchip.c index 47174eb3ba76..bae2061f15fc 100644 --- a/drivers/gpio/gpio-rockchip.c +++ b/drivers/gpio/gpio-rockchip.c @@ -593,6 +593,7 @@ static int rockchip_gpiolib_register(struct rockchip_pin_bank *bank) gc->ngpio = bank->nr_pins; gc->label = bank->name; gc->parent = bank->dev; + gc->can_sleep = true; ret = gpiochip_add_data(gc, bank); if (ret) {