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 3CF142F1FD5; Wed, 31 Dec 2025 21:14:26 +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=1767215666; cv=none; b=tDVAiDnWdx94KHTB3ozgdKhWBMBub6WyKPgqAl+cxbLlsDox4GDZkCwrAmRBdiisewqUYE7I8Y0hIQWfmKYOGURUCXz9COPohNsbIwbBQ99L/CmSibva6Ois9SYtYtO91m4fvNnGc61eQYujgYMzROoVbhCKSuSJHCo672WANeU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767215666; c=relaxed/simple; bh=xHto84en/EpD6//k9zvS6nVYcDGIzO5ea3fCpM6w0qY=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=BCn+ELwwQAVgf7lc6NJf4+Bh5Ax+UuZxcznJZYDYu/RKaO9xQkrQyLZH0T80kGyT1uuxk42io1b13DG4JnW8VgRUfLj390bbQSsnTlt/Iho5chz2cArNPEraaPYb776WrWmN6z2jvtksYxLIUvj7nNj9ft2lhqvb4ta2y89b5pY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=G9ZXpBYk; 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="G9ZXpBYk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 72A3BC113D0; Wed, 31 Dec 2025 21:14:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1767215666; bh=xHto84en/EpD6//k9zvS6nVYcDGIzO5ea3fCpM6w0qY=; h=From:Subject:Date:To:Cc:From; b=G9ZXpBYkWbssgqzpZfWl+4b//qwKGIiQzo3Ee0edj3xRKiktG4N82TQUPqovn6IGr 17QK/2nzxz7LLauxRhfQdv5H8LAIF8U16GahCTyaTG4/FnoH31OhwdTAu6XWYjK82B 0oPz4LL3ylsWdnchiW+yTKs+je4IMwMFUbhZ0lqBQL13by763RuEDEv3kAJ2+nE827 jTsTDFOaTBtdxituRt+Tvlmb5Uvh7K+HIN/JfhFOTQre61qlcp12gT5QoRjYWT4o69 rpYpxSzSg5DYznMZfQJkqYPi/2oBSclzcs547xwG3dPqjFuSXFs4E2JNPsTJeK5jxB m7a8rQgNXZttw== From: akemnade@kernel.org Subject: [PATCH 0/2] iio: imu: inv-mpu9150: fix interrupts for MPU9150 Date: Wed, 31 Dec 2025 22:14:15 +0100 Message-Id: <20251231-mpu9150-v1-0-08ecf085c4ae@kernel.org> 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: 7bit X-B4-Tracking: v=1; b=H4sIACeSVWkC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDI1NDI2ND3dyCUktDUwNdgzQjM0MTS4MUQ/NUJaDqgqLUtMwKsEnRsbW1AM3 fM/9ZAAAA X-Change-ID: 20251231-mpu9150-0f261490d17e To: Jean-Baptiste Maneyrol , Jonathan Cameron , David Lechner , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , Aaro Koskinen , Andreas Kemnade , Kevin Hilman , Roger Quadros , Tony Lindgren , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Jonathan Cameron , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, devicetree@vger.kernel.org, Andreas Kemnade X-Mailer: b4 0.15-dev-a6db3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1179; i=akemnade@kernel.org; h=from:subject:message-id; bh=xHto84en/EpD6//k9zvS6nVYcDGIzO5ea3fCpM6w0qY=; b=owGbwMvMwCUm/rzkS6lq2x3G02pJDJmhk7T/iD522B4n3xO1IXVxY2Yk45UmmUVNz1YFeRoEN 5/epNLeUcrCIMbFICumyPLLWsHtk8qz3OCpEfYwc1iZQIYwcHEKwER2qTEyXNQ59vhVUVpThffF XNaUyeq2RW2M3Yk3k41nxzEpN33XZvjvkfeJdWOW5xWV50euZf3MzWzwfKeX+5vhzMEZOq6TWoq 5AQ== X-Developer-Key: i=akemnade@kernel.org; a=openpgp; fpr=EEC0DB858E66C0DA70620AC07DBD6AC74DE29324 The Epson Moverio BT200 has MPU9150 chips. The devicetree has a simple typo regarding the interrupt of that chip. Simply fixing it unweils problems in the driver causing IRQ storms by calling iio_readdev -T 0 iio:deviceX With the fix applied one IRQ comes per sampling when calling iio_readdev -T 0 iio:deviceX which looks like sane behaviour. Probably applying this series has to be split between different kernel releases to avoid having fixed devicetree with broken driver. Signed-off-by: Andreas Kemnade --- Andreas Kemnade (2): iio: imu: inv-mpu9150: fix irq ack preventing irq storms ARM: dts: ti/omap: omap4-epson-embt2ws: fix typo in iio device property arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts | 4 ++-- drivers/iio/imu/inv_mpu6050/inv_mpu_core.c | 8 ++++++++ drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h | 2 ++ drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c | 5 ++++- 4 files changed, 16 insertions(+), 3 deletions(-) --- base-commit: f8f9c1f4d0c7a64600e2ca312dec824a0bc2f1da change-id: 20251231-mpu9150-0f261490d17e Best regards, -- Andreas Kemnade