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 DD3AD848D for ; Fri, 10 Mar 2023 14:26:28 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 35D1FC433D2; Fri, 10 Mar 2023 14:26:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1678458388; bh=q6rnDoU1CEG/3RwlKSo8In3ZWYiU2Mfp0pnCszW6CRQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LvOKC0qX9cYDPhbeTTeiJhB/jPc1HtyduoGyjBBQ0At02OvhOEAGmuHqJrgtw6Qtg b+jCrgOX+uslW1Z9+yiF4g1z17qKmXc8sWzLHcGpp31dkSUuZIjqmcHnuGb7g2HgPq 0S4KBK6xee7d09urtR4RIKn89SCspgBMBc8ZrEm4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Christian Hewitt , Neil Armstrong , Sasha Levin Subject: [PATCH 5.4 010/357] arm64: dts: meson: remove CPU opps below 1GHz for G12A boards Date: Fri, 10 Mar 2023 14:34:59 +0100 Message-Id: <20230310133734.434605436@linuxfoundation.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230310133733.973883071@linuxfoundation.org> References: <20230310133733.973883071@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Christian Hewitt [ Upstream commit 3cbd431c2b34d84605d358c8c57654193fd661fb ] Amlogic G12A devices experience CPU stalls and random board wedges when the system idles and CPU cores clock down to lower opp points. Recent vendor kernels include a change to remove 100-250MHz and other distro sources also remove the 500/667MHz points. Unless all 100-667Mhz opps are removed or the CPU governor forced to performance stalls are still observed, so let's remove them to improve stability and uptime. Fixes: b190056fa9ee ("arm64: dts: meson-g12a: add cpus OPP table") Signed-off-by: Christian Hewitt Link: https://lore.kernel.org/r/20230119053031.21400-1-christianshewitt@gmail.com Signed-off-by: Neil Armstrong Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/amlogic/meson-g12a.dtsi | 20 -------------------- 1 file changed, 20 deletions(-) diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi index eb5d177d7a999..c8c438c0b429c 100644 --- a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi @@ -54,26 +54,6 @@ cpu_opp_table: opp-table { compatible = "operating-points-v2"; opp-shared; - opp-100000000 { - opp-hz = /bits/ 64 <100000000>; - opp-microvolt = <731000>; - }; - - opp-250000000 { - opp-hz = /bits/ 64 <250000000>; - opp-microvolt = <731000>; - }; - - opp-500000000 { - opp-hz = /bits/ 64 <500000000>; - opp-microvolt = <731000>; - }; - - opp-667000000 { - opp-hz = /bits/ 64 <666666666>; - opp-microvolt = <731000>; - }; - opp-1000000000 { opp-hz = /bits/ 64 <1000000000>; opp-microvolt = <731000>; -- 2.39.2