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 DA5852FB0BC for ; Mon, 20 Oct 2025 13:10:34 +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=1760965834; cv=none; b=tk7NeZ8bxiwR+IEqv9TR8RKuoRwlNtZgaGKstj7I9ym3NWJyFkGfi+5lzyxQvmLPeGhlkejN+W8jKdbcsLXv13Cv/tAHlBJBz8oXWGCdJobkmYdKrIBo9jiqVVHdWr9ZEoKGSlHu182TgkrdRlSKGVxWSMSRgUFr4fMF7F3G/7Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760965834; c=relaxed/simple; bh=LPsN56EZ3SnTp4GM0t2qPocnuET1JEbzA/pCtm016Rk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=m3oqGUjTH7hzOsXRnwhi0PLNnKm8l99u/Fyeqi78yuSwGTDJlj6ZWcG2FJ+w4XGViYHlDh6+wA1p6CPzECvtX24StltMxGI+AFh2ylvXDa/1Eb49jTbKKuqJ9tlCdQmt93RDrSYZDjFm1AXUPlGSqBrXffYhi8zAPE1tyJ3zj3Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=lTGN4qsx; 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="lTGN4qsx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1A1F0C116C6; Mon, 20 Oct 2025 13:10:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1760965834; bh=LPsN56EZ3SnTp4GM0t2qPocnuET1JEbzA/pCtm016Rk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lTGN4qsxKCAt7k3smxihWHRI3JObai5/Mw7r5dMg0I7Z+vCKiHKlfYbAsoqjVMvO8 tGKe0roz04PLo3UROm2/FBh+v/BRgpXqGMlDLZQbhe5OUYwUMXtMxtInyGxUdOQLBi it24W1j34zy2TTY6r5kb3DiPLvcZi+zUj2IF3XjPZ9TWhholsxw639TLVCiVRziTPU 60u0zlhQmxYVEuwojJyIMXkn5Nn20X82O4CEhBan0AA6XKJdY31FLw9mbl3OiStV4U O7aLTtm+XTwVMQgDsYwnXWv1RHVdckj73WlmayQflS6cRrv8kWz57rugMinT7hdCiR NXit1DEGMP0WA== From: Sasha Levin To: stable@vger.kernel.org Cc: Sean Nyekjaer , Stable@vger.kernel.org, Jonathan Cameron , Sasha Levin Subject: [PATCH 5.15.y 2/2] iio: imu: inv_icm42600: Avoid configuring if already pm_runtime suspended Date: Mon, 20 Oct 2025 09:10:30 -0400 Message-ID: <20251020131030.1767726-2-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251020131030.1767726-1-sashal@kernel.org> References: <2025101624-blazing-sharpener-111d@gregkh> <20251020131030.1767726-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Sean Nyekjaer [ Upstream commit 466f7a2fef2a4e426f809f79845a1ec1aeb558f4 ] Do as in suspend, skip resume configuration steps if the device is already pm_runtime suspended. This avoids reconfiguring a device that is already in the correct low-power state and ensures that pm_runtime handles the power state transitions properly. Fixes: 31c24c1e93c3 ("iio: imu: inv_icm42600: add core of new inv_icm42600 driver") Signed-off-by: Sean Nyekjaer Link: https://patch.msgid.link/20250901-icm42pmreg-v3-3-ef1336246960@geanix.com Cc: Signed-off-by: Jonathan Cameron [ Placed early return before regulator enable instead of APEX wakeup logic ] Signed-off-by: Sasha Levin --- drivers/iio/imu/inv_icm42600/inv_icm42600_core.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c b/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c index f955c3d01fef9..cee9dee004a31 100644 --- a/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c +++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c @@ -680,17 +680,15 @@ EXPORT_SYMBOL_GPL(inv_icm42600_core_probe); static int __maybe_unused inv_icm42600_suspend(struct device *dev) { struct inv_icm42600_state *st = dev_get_drvdata(dev); - int ret; + int ret = 0; mutex_lock(&st->lock); st->suspended.gyro = st->conf.gyro.mode; st->suspended.accel = st->conf.accel.mode; st->suspended.temp = st->conf.temp_en; - if (pm_runtime_suspended(dev)) { - ret = 0; + if (pm_runtime_suspended(dev)) goto out_unlock; - } /* disable FIFO data streaming */ if (st->fifo.on) { @@ -722,10 +720,13 @@ static int __maybe_unused inv_icm42600_resume(struct device *dev) struct inv_icm42600_state *st = dev_get_drvdata(dev); struct inv_icm42600_timestamp *gyro_ts = iio_priv(st->indio_gyro); struct inv_icm42600_timestamp *accel_ts = iio_priv(st->indio_accel); - int ret; + int ret = 0; mutex_lock(&st->lock); + if (pm_runtime_suspended(dev)) + goto out_unlock; + ret = inv_icm42600_enable_regulator_vddio(st); if (ret) goto out_unlock; -- 2.51.0