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 AA1023DBD62 for ; Mon, 13 Apr 2026 14:21:02 +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=1776090062; cv=none; b=gYEwDK2XL9NOJ0Unb5up1E0E3xZIU+p7/A1L4b532nz2Mmg47JXjXjLzvOGkLbQ+9YTzkA2VandwrTC/AGv8H5zXKBQ62YwZfD6aOmi8v9hbxAdphDBzG8cS7WgGK4vPtc4HPw7pW/Dk71oiZ7vU3A9wbOduuTCrVZdAVHBvUlk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776090062; c=relaxed/simple; bh=DL+qgMpqrNBcC8T2TIy2qejATeHz3c+HBUUA09Kxszg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=UuQ59bR23K1uxEmtFYr+MA2J91qjXcn34fTm9IlnP3WygqDcb7DciF9G4TprZT0J7q+MMwYdAVSUmpcXJtnrtVqSCiVGx7ndAMqcy1446BpL+VaCcIGP+sTnzox/Qh8xWuoR8X9/Uq4x94CSfTrcJrpIV7heRQLto7RuRhdBtAg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=D0hFe6y5; 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="D0hFe6y5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9E834C2BCB5; Mon, 13 Apr 2026 14:21:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776090062; bh=DL+qgMpqrNBcC8T2TIy2qejATeHz3c+HBUUA09Kxszg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=D0hFe6y5YCM0E8pUVOdg5kLUEvhM0+2u4+y5OHK4OiZ+Dsn2ay5gZhT8h2dZIT+ku +PFYy0FkkKwzOm+vMX77UGDSw5lqZaHHQhiHmvAg//a0vtM6gPgU04+UI3GKvPbPpG jVDw2WAuKp+pHjBVyH8QyQ2jQ5DaF78/M3VLPOJNdtbhPBWoMswb9F3vYFwELDTbuw +NYouLY0x/SISWiEg1x0UDBeN7hiSNFd9Ll4NAxBk/Pvldqh10rLsCRGFgwEC8FEk+ 7mJtfhcwrGRR/E692Ahs2efGaY4etTHlrZd+9rVLmA7FvjN09SD46hnG/7wOprzLbb E0vJG5a+uTqCg== From: Sasha Levin To: stable@vger.kernel.org Cc: Sebastian Krzyszkowiak , Frank Li , Sasha Levin Subject: [PATCH 5.15.y 4/4] arm64: dts: imx8mq-librem5: Bump BUCK1 suspend voltage up to 0.85V Date: Mon, 13 Apr 2026 10:20:57 -0400 Message-ID: <20260413142057.2909222-4-sashal@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260413142057.2909222-1-sashal@kernel.org> References: <2026041309-growing-ground-4131@gregkh> <20260413142057.2909222-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Sebastian Krzyszkowiak [ Upstream commit 511f76bf1dce5acf8907b65a7d1bc8f7e7c0d637 ] The minimal voltage of VDD_SOC sourced from BUCK1 is 0.81V, which is the currently set value. However, BD71837 only guarantees accuracy of ±0.01V, and this still doesn't factor other reasons for actual voltage to slightly drop in, resulting in the possibility of running out of the operational range. Bump the voltage up to 0.85V, which should give enough headroom. Cc: stable@vger.kernel.org Fixes: 8f0216b006e5 ("arm64: dts: Add a device tree for the Librem 5 phone") Signed-off-by: Sebastian Krzyszkowiak Signed-off-by: Frank Li Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi index ce63d5ef67665..2260ae8dc1a23 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi @@ -706,7 +706,7 @@ buck1_reg: BUCK1 { regulator-ramp-delay = <1250>; rohm,dvs-run-voltage = <900000>; rohm,dvs-idle-voltage = <850000>; - rohm,dvs-suspend-voltage = <810000>; + rohm,dvs-suspend-voltage = <850000>; regulator-always-on; }; -- 2.53.0