From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 187C5279DC9; Sat, 30 May 2026 18:25:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780165557; cv=none; b=iDb4JY6C6pGpnvSqHAudqvbYr5va0YSfQjcgqvr5f+lsh/dL+0x1daGqStbXG3yjgaAaEQrG+4Y3xS0DBWnxkDopSZaCtJS9+4u00DzRromdhBdUK9bacxeXcc8NYlTTJ72h01e9DvdJLOWfhsrm6YbsedNE9WaJjMhfuJ6AFPY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780165557; c=relaxed/simple; bh=iTuTvCsFc8sr6IA3VQpn4MZ0g1omJ9t4wrV+BcJ+fD4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=GEH+SiZaR/MtKNlCbYfjC4XrHc0jGz5ajguXZbmhumojQPk9r3iBMb5nU6TM+IpREn0CNGGYxPEyPHo9YIcm4c53mHE869H3dFyOIc3sZBr/oaYK1hFwhoLsfR6gbp7/jLqCn4BIYpdPihe7+eSepH+M/93oc/+CORxzuA0dAiE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=L7qDV8K3; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="L7qDV8K3" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5CED01F00893; Sat, 30 May 2026 18:25:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1780165556; bh=E/oU0nkpFRvsuVCZCN4yiC14sQRQuKWS2QUVA8QY2Vw=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=L7qDV8K3nWL+Q2LYPVtbDTrsprdhfBrPMMV74Gs1nixiQPjuISgajhuwQ06qJk2wk +2X0K2QHkaxEFHcUsFkcphM0cbdwUCVjJRT/U4n5GcX+3vYWqC6U9RJtHxs8CBcD56 MHu2i+UGXzgrZoJZCIHndW5OKAmMjZFMabs2bjto= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Martin Kepplinger , Shawn Guo , Sasha Levin Subject: [PATCH 5.10 113/589] arm64: dts: imx8mq-librem5-r3: workaround i2c1 issue with 1GHz cpu voltage Date: Sat, 30 May 2026 17:59:54 +0200 Message-ID: <20260530160227.728272219@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260530160224.570625122@linuxfoundation.org> References: <20260530160224.570625122@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Martin Kepplinger [ Upstream commit 1773b8d6697ac8e9380843fe5c13c25e95baa702 ] This is a workaround for a hardware bug in the r3 revision that basically would stop the system due to traffic on the i2c1 bus. A cpu voltage change would trigger such traffic and that's what is avoided in order to work around it. Signed-off-by: Martin Kepplinger Signed-off-by: Shawn Guo Stable-dep-of: 511f76bf1dce ("arm64: dts: imx8mq-librem5: Bump BUCK1 suspend voltage up to 0.85V") Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- arch/arm64/boot/dts/freescale/imx8mq-librem5-r3.dts | 6 ++++++ 1 file changed, 6 insertions(+) --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-r3.dts +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-r3.dts @@ -10,6 +10,12 @@ compatible = "purism,librem5r3", "purism,librem5", "fsl,imx8mq"; }; +&a53_opp_table { + opp-1000000000 { + opp-microvolt = <1000000>; + }; +}; + &accel_gyro { mount-matrix = "1", "0", "0", "0", "1", "0",