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 5982F6F06C; Mon, 29 Jan 2024 17:14:22 +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=1706548462; cv=none; b=igo3P3fdYD+5OQGgLSOENPXnFJje+NmtjgZvqncb6/3jaxihp3anm4BFCsBOII4sgMoR214o0A0WrDyy5v5hUFELx3yxnglXhgykvuUOuCEAnhNTghTgh5zRvl1krVfy8Jtr4AddL9TBYk4ykp13LBgdqqdxLTV/sgrERN4K1aU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706548462; c=relaxed/simple; bh=cFj73Qj2Ss8rRxv2qxDNd+LF/Od22ce5T6ObFs6V7Ec=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=UlfjG/sNcWPRe38v5jdxZ6xooZatkZn6w/x/n8sbi4nBZv1x0p1WU9G64dMWWPvF1LPZFDhOWK49w8463SqpvacBnQsInCEXyjCgOZ8QjUt0QZviI/kIWg5awEgnkB5MgOMUTryT+BB5tgz2T8q3qidnzow0q9mA2pz5M4uHno4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=RKDHnoWw; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="RKDHnoWw" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 211AFC433F1; Mon, 29 Jan 2024 17:14:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1706548462; bh=cFj73Qj2Ss8rRxv2qxDNd+LF/Od22ce5T6ObFs6V7Ec=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RKDHnoWwXdRZ/IXAlt74Cfqbr7R9eUjPUu+D5XOgkCOVd48anRpWtiJx0tovBwB6w r8DjMm2Iw5+gsYbhPU0XolK/2lnIRJNjAfU+NwVpKrzIsC6LCXjLjKVeZ6D01USD5P Cml0V04vn7t2dS9WzlwD9bWtSfs2YBNbe/BUhuiI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Paul Cercueil , Krzysztof Kozlowski Subject: [PATCH 6.6 075/331] ARM: dts: samsung: exynos4210-i9100: Unconditionally enable LDO12 Date: Mon, 29 Jan 2024 09:02:19 -0800 Message-ID: <20240129170017.119301418@linuxfoundation.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240129170014.969142961@linuxfoundation.org> References: <20240129170014.969142961@linuxfoundation.org> User-Agent: quilt/0.67 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 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Paul Cercueil commit 84228d5e29dbc7a6be51e221000e1d122125826c upstream. The kernel hangs for a good 12 seconds without any info being printed to dmesg, very early in the boot process, if this regulator is not enabled. Force-enable it to work around this issue, until we know more about the underlying problem. Signed-off-by: Paul Cercueil Fixes: 8620cc2f99b7 ("ARM: dts: exynos: Add devicetree file for the Galaxy S2") Cc: stable@vger.kernel.org # v5.8+ Link: https://lore.kernel.org/r/20231206221556.15348-2-paul@crapouillou.net Signed-off-by: Krzysztof Kozlowski Signed-off-by: Greg Kroah-Hartman --- arch/arm/boot/dts/samsung/exynos4210-i9100.dts | 8 ++++++++ 1 file changed, 8 insertions(+) --- a/arch/arm/boot/dts/samsung/exynos4210-i9100.dts +++ b/arch/arm/boot/dts/samsung/exynos4210-i9100.dts @@ -527,6 +527,14 @@ regulator-name = "VT_CAM_1.8V"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; + + /* + * Force-enable this regulator; otherwise the + * kernel hangs very early in the boot process + * for about 12 seconds, without apparent + * reason. + */ + regulator-always-on; }; vcclcd_reg: LDO13 {