From nobody Thu Oct 2 01:54:41 2025 Received: from mail-wm1-f41.google.com (mail-wm1-f41.google.com [209.85.128.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D5F253002A6 for ; Wed, 24 Sep 2025 14:51:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.41 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758725518; cv=none; b=PdQm9m5egcjWOxdssIVSQ8y2X+ydc3e2wLwtXyRR8xwtg6nMwg4YOYGRkb+Z37d+EY3JQATfUflpHlmy+nmYukZn+sX6QF4OrgoLih+931VHk5jDiOTA/xVxuDHYt/orBWRcaIMErVibTLEVRn0FMAJTb8Njw881G5BuDAkyYnA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758725518; c=relaxed/simple; bh=L2kLAKhXcPRTSxYID5+lqGdmVixmb8cY89yQVUKyTsw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=TmXYfxGBhT8xRvhox4VoyzaxwgG2MoW/OeI/xR4TrQp01odf1yGxraC7h8utdiUfjZ1/p2JweCrZVkzutNrVLWjNvMqFief0bwLFiY0cTHTE5jEYHKGZxmLTgRY8nXhd/hopoeYqDVjWNReCkEdkt7Affl9ul+GWdFIDZVcWgwg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl; spf=none smtp.mailfrom=bgdev.pl; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b=e0lxZtHL; arc=none smtp.client-ip=209.85.128.41 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b="e0lxZtHL" Received: by mail-wm1-f41.google.com with SMTP id 5b1f17b1804b1-46d25f99d5aso8003515e9.0 for ; Wed, 24 Sep 2025 07:51:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1758725515; x=1759330315; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=V0Q+Hgya9r+CWJ27IcqRYKkvlXmEyTvOuBCqoT3y8qw=; b=e0lxZtHLY+v0rBmlEbUurgnddp5kvZvgYOJbyCrfZMJBKNV2jPOD+ZMWL/cVDu6alT WVT22A7bGD+QsL73jovvMsZepws1MokS3LbFlQa7sIVtOMoBkMdyJ90fAeSy3uuLCV/z 9ITaMZW30GmCShAm508ips6VzY8JNchv53v78GjQpljyHTFZebMT9iurFw9kr2ii67oP w89oqJJtsoWAO6k2LNQv7oJYOSUgvtzf09h18HGXCN2vzAPZTQlnEgwO6GTsmFzcYCFf 2OJ/zzFM7ssPpsuMXJX+1jcUTC6zep0t0pTj745K3uOrk0Acnk4qvGOWodyJm+WlZ1IG sSRg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1758725515; x=1759330315; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=V0Q+Hgya9r+CWJ27IcqRYKkvlXmEyTvOuBCqoT3y8qw=; b=lHouxtcjTkXEMGZ8WRZZJfFjpmiav2g5NnQqFKiRc8mH9jz3sft+uzmZB3gVOQWRtX QkKzZLukwfh2OZmNiVj1fkKojVA2gGHMf+ca0wqnTvFzGatmhNJOwfVXcTeHYEu08cJ8 o8wLk6O2qGBJK/+AQEMSFcaflAriwoiBcs+edeJxDbnXwPmjN/3On0PiJq7/IpWBE8u9 B+Fhn4i8BYbTSlmFsRpp6Q6YTszjVIIY/XXMW9d6gVXAGkHjktjqw9uAhqxhK7hFCbw0 7dWVhAQXG8ArY6SZmeGp/CDpwwgUVK85F8g0jnGWeyCtXQG5IzzMflJlqPL3vPrYm346 Hodg== X-Forwarded-Encrypted: i=1; AJvYcCVDRsp1ug7t8V+gF8xwpTVZcR2ukrZ+ms/k7OVud2rCM+ivMVL3smgQo4vgGZnyGErWvS5MngJz15ESa1A=@vger.kernel.org X-Gm-Message-State: AOJu0YzT72wH58cQoBnaj22DB+Em+tL2mSolEG/WvoGPB8q6ot1bZwYu tfZMzrkPS7yzhT7bCLK2xfTyfVSzr3Kq6JGyWj0czBHPcwCow+riHvkep7PLJrAocxY= X-Gm-Gg: ASbGncta5xGRMSmTewDiYDFVL6HgD64qX0SpyCndc6DnESHoAVF0mWi0UWjqd2KG+rJ FBKbwpiJTskoGu9WSJMBOTqwMSZlRSy8xh1mdYPcdFClv7XSw+UxwxhsN3b4BRW90d4YGnu6R8d rxxgTXGYXcUCUn5Orsdut4FVRRyEHxtcj9SoM0NX4srFX9XT0oERyYO1Kf+mB0qdkHvc8BSTZAZ QgaZ8IvKblnSJPJ2XozZCmQKSjo3D6Dbx6nFDLUnmFxFMUVUzcRTRB4GpbpSDBz7bBnfKeJnn3e lTRzdo6LnICVcmS5qKh7WII1Me0+LVz3BGeMaPdUCAKyD830QhAi6AC6kNoP/vgpHepkd4cT5Dj R0c51EoTK5syQkBU6pn2edfJt2euY X-Google-Smtp-Source: AGHT+IHqrlf5Iy0gafewEVEvZvdqGPtxzn/dahd6Ieio03KFz2MLsdyrnS63HEdvlLZHwR/e4CQuAg== X-Received: by 2002:a05:600c:c1c8:20b0:45d:5c71:769d with SMTP id 5b1f17b1804b1-46e2b52c35amr23884575e9.8.1758725514877; Wed, 24 Sep 2025 07:51:54 -0700 (PDT) Received: from [127.0.1.1] ([2a01:cb1d:dc:7e00:1729:c9b6:7a46:b4a3]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3ee0fbc7188sm29514750f8f.37.2025.09.24.07.51.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 Sep 2025 07:51:53 -0700 (PDT) From: Bartosz Golaszewski Date: Wed, 24 Sep 2025 16:51:29 +0200 Subject: [PATCH RFC 1/9] gpio: wcd934x: mark the GPIO controller as sleeping 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: <20250924-gpio-shared-v1-1-775e7efeb1a3@linaro.org> References: <20250924-gpio-shared-v1-0-775e7efeb1a3@linaro.org> In-Reply-To: <20250924-gpio-shared-v1-0-775e7efeb1a3@linaro.org> To: Kees Cook , Mika Westerberg , Dmitry Torokhov , Andrew Morton , Linus Walleij , Manivannan Sadhasivam , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Saravana Kannan , Greg Kroah-Hartman , Andy Shevchenko , Bartosz Golaszewski , Catalin Marinas , Will Deacon , Srinivas Kandagatla , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai Cc: linux-hardening@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sound@vger.kernel.org, linux-arm-msm@vger.kernel.org, Bartosz Golaszewski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=990; i=bartosz.golaszewski@linaro.org; h=from:subject:message-id; bh=+onLqCs+uky6KqRfHsDH/gKs++nVX/GXHjjSwDpjMnY=; b=owEBbQKS/ZANAwAKARGnLqAUcddyAcsmYgBo1AWFZY+Dx2G8yimcnZUw4X/JDBSCEab4BzQX0 SEHR9ic5oyJAjMEAAEKAB0WIQQWnetsC8PEYBPSx58Rpy6gFHHXcgUCaNQFhQAKCRARpy6gFHHX csl7D/93a8AjEBhJdr57hZV94lQ6L3oHzmrrx5+I11yewNKQjKjTiq/Sv7simTbkw5LqRHTNOOk QWOaGEuOezZILvfSLh1t7XubpcAX+zTbbff5+vb4ZdNe1XGw3g5MD5RLUzKZQ0hjOMJHU7L9tAJ NoggHvBT3EnG8Ws9nzAODXZt5TqCAudVYwg8tTt59kKaEXKVyQUpgfYieAEBx3nstzHVwhBZMsN PN/W57PhQSenmFgTdbS8wyVjzfM0yQvStz23TE80h/aC9XZT/OgLk/12DNudAF/HRKS5/Q3iuPS 2HKCzPlKXS+fjOKXLiTomcVP8ARRmUp8VToNMHo4J4KYtNQXi08TC6HgRORLT/1wWctRhPuhb61 OkA0dqVJVQGYlOElCn2+hsp5eNzF6oKi/t/I3jiVl7XiGyw8uvkoTWCUnNLGmIHFco/iJoLw7Kt sPE0BsweoKRZL6tWX9N9iebGP0cqbHMEsyPDeXu8SFvahdcdKtrNFDCksbyNqOKy+4aBmsmslUl SuxtbhyvNcNsX/RjP5FpdoDfQkcDHmiWoTFQvz1YGeGNIJeCLCBmFu+3Gbu4uBalakSNLTq5T40 g+otJPzjjKDtCQ1tClpK7Ad+moqy7orLr6M64tCCWKk2ukhBIo+iwX0F9X3nRRLdISs6m/qIoR+ N1Boo054QFUaFwA== X-Developer-Key: i=bartosz.golaszewski@linaro.org; a=openpgp; fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772 From: Bartosz Golaszewski The slimbus regmap passed to the GPIO driver down from MFD does not use fast_io. This means a mutex is used for locking and thus this GPIO chip must not sleep. Change the can_sleep switch in struct gpio_chip to true. Fixes: 59c324683400 ("gpio: wcd934x: Add support to wcd934x gpio controller= ") Signed-off-by: Bartosz Golaszewski --- drivers/gpio/gpio-wcd934x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-wcd934x.c b/drivers/gpio/gpio-wcd934x.c index 4af504c23e6ff5ad2bad1d70a0c42e2fd91f0c7a..572b85e773700ea0740d3e4efc0= 6d3538f7e368e 100644 --- a/drivers/gpio/gpio-wcd934x.c +++ b/drivers/gpio/gpio-wcd934x.c @@ -103,7 +103,7 @@ static int wcd_gpio_probe(struct platform_device *pdev) chip->base =3D -1; chip->ngpio =3D WCD934X_NPINS; chip->label =3D dev_name(dev); - chip->can_sleep =3D false; + chip->can_sleep =3D true; =20 return devm_gpiochip_add_data(dev, chip, data); } --=20 2.48.1