From patchwork Tue Dec 10 22:48:57 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Morgan X-Patchwork-Id: 13902413 Received: from mail-oo1-f54.google.com (mail-oo1-f54.google.com [209.85.161.54]) (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 B219C1EE7BD; Tue, 10 Dec 2024 22:51:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.54 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733871089; cv=none; b=VJ1fY2D2dWHSOmeZaZCHkXLq+2MBT8S+951P0xsm1m9wkEh7Yd1hDR169Th+iNMYGBiLkAIVXIL86Jb5q7xJBsUHnf3/2ZVe9N6//xGNGVoUAli2Cefcj5/ynt2lfcEklHi3c5dM9/z9y2CTEyu7UZS/fSKPlAsnp0xE0+8u1iI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733871089; c=relaxed/simple; bh=7TW3tWshDmQ8/W7HMUh4kHwonbvhYqNw/VA4qh/iOjg=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=q7Ue7J+41Xkm3cSJf8rZpLA+RDAKvzLXzpJYbkAYst9P7mrp/mXgfH6DZ4xFevlOdc5F4Tb42yTbQiNoDOVbuxWM579u99zk4vTjFc7OLxq45BT6GdxOS1ZpKYLag4DcDXlNNL7qruuyebAVQuPki3zpp/UaCDhexnQfKlYhY0c= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=Wi0ByZvw; arc=none smtp.client-ip=209.85.161.54 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Wi0ByZvw" Received: by mail-oo1-f54.google.com with SMTP id 006d021491bc7-5f29e2e756bso805120eaf.3; Tue, 10 Dec 2024 14:51:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1733871086; x=1734475886; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=jEE6TBtjTNV52zCm8G38x6GI2YSppUzVwpIheONIRC4=; b=Wi0ByZvw9TmPK+H4gwVnO2BoBMPId5iqirrlEXzxrqXv+ojypIyN2iTCVJYHGLjrxy 2yXQRKSAdOdiALSWNcRVE27uBFBBMosZe7661D5WEN2CSdbx0JlsiqCSHPszWpCpr2of vGjrprksBTo2+hXYN+AEIVaeNhpxPPOoj4R8OMM5VQvbSgYERM370XLgDzoMXYX9t5VE 7DFoqk6oYC8kqJXZmQe7aikoNbHKl+LKTU15uLoBU2isF9s/C2WnJha/GxOHqj3qYlRR O0OqMctV6PAwCSgk8w6cF3AvvwJOyuobS3IGpZU0zwH0X+LqoDkX65oDh0RB9nZHmuCw KS5g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1733871086; x=1734475886; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=jEE6TBtjTNV52zCm8G38x6GI2YSppUzVwpIheONIRC4=; b=GGSVjZU6MLLBTFGxMwCQK1RoPTkrRRXt2yV4BOTmi1ngt2y314OrtvG7X/dqEY79c6 Ne2K3BurprWL8P5oKGmp9fvd7Q/8/tYfxKmS2wv6OGgC5zJ9kZ/t9BQZbN1tiyYsiF/m 4CMeX9y5K/spRQBQlsGCqfq7dMjDVgDQGU5o44fapRuR5Sjv6pkT8F5j0ImGjm3rXWxa I0oa1d7XbV51MU8H163Hsqb4wohnZdgHaSQdAYyPrmJWlTXNC6Gqtc26WcT1O89krERc 0FWlmupD35KBZcbMjTfLy2ciD/qwUfi3QY3ejTGGTvru0TLoj+JnzNvU8ug8hpUGtkdN 5eLw== X-Gm-Message-State: AOJu0YxGb+f/lHmKFVwskHHN55NkEZCCM6RaFI52oCs5Lv0ugRi8aIE7 oC1jFF6FUe6b3cxIIY34twHb3kIjfUT25UklhGLqejKjmWdCeUisnpAWbA== X-Gm-Gg: ASbGncvAVvIpaqMl+oOU0BhJ/0y7XW9QE8hW1yQ4aUlLF4unF3P0OgxgAlYy8gGAdOp vkp6a3CgYaOBlbtu569MeyaRv5TCWYPkpoam60TN5cFCZOwvdW0RH44/CIesE3cSFHhHySDr6Aw 36blYZ61+TA4m4RSNiWAkfMMdZR/BkeedLJLDU9gLUhzAKBMtLs+KwA+Nby821tP7X+UKZyxEGB AlC5fS8V+buxX9MwEsOxmkf7hsMnMIvi9YCSKy6lpx15puxAeBf X-Google-Smtp-Source: AGHT+IHMwiVLCWSNMEOoLUYKgpJzj/vfMrlb55mzDhYgYysv8CpQQucVZesnq7NIUEZ4Vi0nqR+A8A== X-Received: by 2002:a05:6820:206:b0:5f2:d972:a6f5 with SMTP id 006d021491bc7-5f2da06342dmr329487eaf.1.1733871086518; Tue, 10 Dec 2024 14:51:26 -0800 (PST) Received: from localhost.localdomain ([2600:1700:fb0:1bcf::54]) by smtp.gmail.com with ESMTPSA id 006d021491bc7-5f2a9d525f2sm1704136eaf.4.2024.12.10.14.51.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Dec 2024 14:51:26 -0800 (PST) From: Chris Morgan To: linux-pm@vger.kernel.org Cc: linux-iio@vger.kernel.org, andre.przywara@arm.com, lee@kernel.org, wens@csie.org, sre@kernel.org, lars@metafoo.de, jic23@kernel.org, Chris Morgan Subject: [PATCH 0/2] Fix Regression with AXP20X for 6.13-rc1 Date: Tue, 10 Dec 2024 16:48:57 -0600 Message-ID: <20241210224859.58917-1-macroalpha82@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Chris Morgan After performing a git bisect, I identified a commit that broke the battery and charger driver for my AXP717 PMIC. This was caused by commit e37ec3218870 ("mfd: axp20x: Allow multiple regulators"). After digging into it, it appears when mfd_add_devices was called with a platform ID of PLATFORM_DEVID_NONE, the devm_iio_channel_get() call made by the various AXP20X power drivers would not be able to generate a dev_name(dev) for some reason, and the iio_channel_get() call used in the devm_ helper would fall back to making a iio_channel_get_sys() call. After the platform ID was updated, now iio_channel_get() is no longer falling back to iio_channel_get_sys(). At least this is my limited understanding of what happened. To fix this, I added a new devm_ helper of devm_iio_channel_get_sys() that directly calls iio_channel_get_sys(), and I updated all the affected drivers with the new routine. I then no longer experienced any issues with the drivers on my devices. Chris Morgan (2): iio: core: Add devm_ API for iio_channel_get_sys power: supply: axp20x: Use devm_iio_channel_get_sys() for iio chans drivers/iio/inkern.c | 18 ++++++++++++++++++ drivers/power/supply/axp20x_ac_power.c | 4 ++-- drivers/power/supply/axp20x_battery.c | 16 ++++++++-------- drivers/power/supply/axp20x_usb_power.c | 6 +++--- include/linux/iio/consumer.h | 20 ++++++++++++++++++++ 5 files changed, 51 insertions(+), 13 deletions(-)