From patchwork Tue Aug 29 09:18:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mateusz Majewski X-Patchwork-Id: 719710 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 377FBC83F23 for ; Tue, 29 Aug 2023 09:25:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234686AbjH2JYa (ORCPT ); Tue, 29 Aug 2023 05:24:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49046 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234762AbjH2JYU (ORCPT ); Tue, 29 Aug 2023 05:24:20 -0400 Received: from mailout2.w1.samsung.com (mailout2.w1.samsung.com [210.118.77.12]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CB070CD6 for ; Tue, 29 Aug 2023 02:24:07 -0700 (PDT) Received: from eucas1p1.samsung.com (unknown [182.198.249.206]) by mailout2.w1.samsung.com (KnoxPortal) with ESMTP id 20230829092406euoutp020fdac011a54d6bf2fb36f9825f788ae3~-0FSWVU0Y0626506265euoutp02s for ; Tue, 29 Aug 2023 09:24:06 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout2.w1.samsung.com 20230829092406euoutp020fdac011a54d6bf2fb36f9825f788ae3~-0FSWVU0Y0626506265euoutp02s DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1693301046; bh=Yg71emI7rkUdONEcXXwkkssF2zl7EmPpwlLXh4qDTeM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bch6VWVrwatFoif+HJy2ySqOXNzxoOhIp/MdTfjgJA024r16aGms8BkL/p94K3kyZ 3Y7tjFmzFgq3tmDpeTwEQ/WlQXZNFJMm13ZH0F7PHpQpRuA8isWaN1y9s8X3/ab97H dBRnqH9vtEs5KGi1mFqHvnkzNifvRTZHpOG7nljU= Received: from eusmges2new.samsung.com (unknown [203.254.199.244]) by eucas1p1.samsung.com (KnoxPortal) with ESMTP id 20230829092405eucas1p1fc83dded4ba331d6d818eff146d8f59c~-0FRdLMgt2328123281eucas1p1f; Tue, 29 Aug 2023 09:24:05 +0000 (GMT) Received: from eucas1p2.samsung.com ( [182.198.249.207]) by eusmges2new.samsung.com (EUCPMTA) with SMTP id DD.17.11320.539BDE46; Tue, 29 Aug 2023 10:24:05 +0100 (BST) Received: from eusmtrp1.samsung.com (unknown [182.198.249.138]) by eucas1p1.samsung.com (KnoxPortal) with ESMTPA id 20230829092405eucas1p14543d527d81e8714594ebb999ab5fc02~-0FQ_bvLQ2331823318eucas1p1q; Tue, 29 Aug 2023 09:24:05 +0000 (GMT) Received: from eusmgms1.samsung.com (unknown [182.198.249.179]) by eusmtrp1.samsung.com (KnoxPortal) with ESMTP id 20230829092405eusmtrp1060d9335f88fe2227d244eed14cf210f~-0FQ9gpQQ3248032480eusmtrp1V; Tue, 29 Aug 2023 09:24:05 +0000 (GMT) X-AuditID: cbfec7f4-993ff70000022c38-ee-64edb935cd4d Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms1.samsung.com (EUCPMTA) with SMTP id 86.D9.10549.439BDE46; Tue, 29 Aug 2023 10:24:05 +0100 (BST) Received: from AMDC4515.eu.corp.samsungelectronics.net (unknown [106.120.51.28]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20230829092404eusmtip2341d0d647936b47a733e98d3e2a655bb~-0FP-6-gg1072510725eusmtip2i; Tue, 29 Aug 2023 09:24:04 +0000 (GMT) From: Mateusz Majewski To: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Cc: Mateusz Majewski , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alim Akhtar , Bartlomiej Zolnierkiewicz , "Rafael J. Wysocki" , Daniel Lezcano , Amit Kucheria , Zhang Rui , Liam Girdwood , Mark Brown , Marek Szyprowski Subject: [PATCH 01/11] ARM: dts: exynos: enable polling in Exynos 4210 Date: Tue, 29 Aug 2023 11:18:39 +0200 Message-ID: <20230829091853.626011-2-m.majewski2@samsung.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230829091853.626011-1-m.majewski2@samsung.com> MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrDKsWRmVeSWpSXmKPExsWy7djP87qmO9+mGNz8rWDxYN42NovD8yss pj58wmbxfct1Jos1e88xWcz7LGsx/8g5Vou+Fw+ZLb5d6WCy2PT4GqvF5V1z2Cw+9x5htJhx fh+TxcRjk5kt1h65y24x98tUZovWvUfYLZ487GNzEPLYOesuu8fiPS+ZPDat6mTzuHNtD5vH 5iX1Hn1bVjF6fN4kF8AexWWTkpqTWZZapG+XwJXxuDO04BFHxcOLj9kaGBeydzFyckgImEhc WTuPtYuRi0NIYAWjxJzr16CcL4wSP3euY4FwPjNKTH1yFa5lQvsRNojEckaJVY2f2SGcViaJ 53f62UCq2AQMJB68WQaWEBFYzCixdecsJhCHWWAui0TDyp8sIFXCAm4SD168ZO5i5OBgEVCV ePkzDiTMK2ArsXrHMjaIdfISz2/dAVvNKWAnMf18OxNEjaDEyZlPwMYwA9U0b53NDDJfQmA2 p8TRDzeZIZpdJPYdus8IYQtLvDq+BeoHGYnTk3tYIOx8iRmb37OA3CAhUCFx96AXhGkt8fEM 2GXMApoS63fpQ0QdJY7sLoQw+SRuvBWE2M8nMWnbdGaIMK9ER5sQxGRVieN7JkFdIi3xpOU2 E4TtIfHmwEfWCYyKs5B8MgvJJ7MQ1i5gZF7FKJ5aWpybnlpslJdarlecmFtcmpeul5yfu4kR mOBO/zv+ZQfj8lcf9Q4xMnEwHmKU4GBWEuG95PgqRYg3JbGyKrUoP76oNCe1+BCjNAeLkjiv tu3JZCGB9MSS1OzU1ILUIpgsEwenVAOT55fYsuN7jeUF74fMtRDwnCvK3LHvWJPGdkamoMtR +T1vO5+65bu03HCNiNE02fX7c1mQc+yLmn0bhSq/fF2XXaV/plbnp7KoY8z2zVKe5S0xC7K/ JNrHT2Hy9i2oW39gf7LrriRh/UybDVujwjVee/2a2Bm0I/6z3Pymt/56W+0+vuv8InGgq8v4 b9LdU8+u9u3YniD9qPH+4s4zd96fSsw8Gfpd8DqjlVpnf+RdmTyjM/Z9ZTWGcay89UrymXsu O9w9devJu0d/y05X75h266LqsmcTrR9eiy9bzf5s3s2Loi0bHWayXpmkv2pLUg3Pw+5Jczku bih7kr3iY93+mpgGMa3fBedMXhT4Xf2ixFKckWioxVxUnAgAYdxA9N8DAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrHIsWRmVeSWpSXmKPExsVy+t/xe7qmO9+mGCy4xWjxYN42NovD8yss pj58wmbxfct1Jos1e88xWcz7LGsx/8g5Vou+Fw+ZLb5d6WCy2PT4GqvF5V1z2Cw+9x5htJhx fh+TxcRjk5kt1h65y24x98tUZovWvUfYLZ487GNzEPLYOesuu8fiPS+ZPDat6mTzuHNtD5vH 5iX1Hn1bVjF6fN4kF8AepWdTlF9akqqQkV9cYqsUbWhhpGdoaaFnZGKpZ2hsHmtlZKqkb2eT kpqTWZZapG+XoJfxuDO04BFHxcOLj9kaGBeydzFyckgImEhMaD/C1sXIxSEksJRRYlZDKyNE Qlri8JcpUEXCEn+udUEVNTNJrL7ZywqSYBMwkHjwZhk7SEJEYDmjxNV7y1lAHGaB5SwSz9d8 YAapEhZwk3jw4iWQzcHBIqAq8fJnHEiYV8BWYvWOZWwQG+Qlnt+6A7aNU8BOYvr5diYQWwio Zs2Ec2wQ9YISJ2c+YQGxmYHqm7fOZp7AKDALSWoWktQCRqZVjCKppcW56bnFhnrFibnFpXnp esn5uZsYgRG57djPzTsY5736qHeIkYmD8RCjBAezkgjvJcdXKUK8KYmVValF+fFFpTmpxYcY TYHOnsgsJZqcD0wJeSXxhmYGpoYmZpYGppZmxkrivJ4FHYlCAumJJanZqakFqUUwfUwcnFIN TAs+e0lIMGtM0XyiW7N2R1uubtOdizsKq9dFbqv1m6eWuW7m7qANfSuXSsZ462qtmFp5Q/u6 Rfoq+bvzOxfzK5pprf137ILEhryXb4/lHpb6Mf2PxrXHktl3syb8qLK9tCazwzthZmzEuYkL b/BGHnq6pUysbsavmmmH13839+PQPsObe7x5o/YZ+Tzz2SVVvXzqXisXFsye5lP373Vx0nyF 8oc7W7m/f/Qx4hfbKvRWv42BL+Xs9nyLubvPHHm/qXrX1p1VL0TWNzwu6TLJ6J51o3iSh/Lk lbcULLfGGXWfrTifuSOusGrOetunuZ7rfzcyLmCR+/PlRuP+xXd8e45YPkj+zLZZY0qvpqS5 f6kSS3FGoqEWc1FxIgDhwqItUQMAAA== X-CMS-MailID: 20230829092405eucas1p14543d527d81e8714594ebb999ab5fc02 X-Msg-Generator: CA X-RootMTR: 20230829092405eucas1p14543d527d81e8714594ebb999ab5fc02 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20230829092405eucas1p14543d527d81e8714594ebb999ab5fc02 References: <20230829091853.626011-1-m.majewski2@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org It seems that thermal in Exynos 4210 is broken without this, as it will never decrease cooling after increasing it. Signed-off-by: Mateusz Majewski --- arch/arm/boot/dts/samsung/exynos4210.dtsi | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/samsung/exynos4210.dtsi b/arch/arm/boot/dts/samsung/exynos4210.dtsi index 0e27c3375e2e..aae185b7f91c 100644 --- a/arch/arm/boot/dts/samsung/exynos4210.dtsi +++ b/arch/arm/boot/dts/samsung/exynos4210.dtsi @@ -391,8 +391,14 @@ &cpu_alert2 { }; &cpu_thermal { - polling-delay-passive = <0>; - polling-delay = <0>; + /* Exynos 4210 supports thermal interrupts, but only for the rising threshold. + * This means that polling is not needed for preventing overheating, but only + * for decreasing cooling when possible. Hence we poll with a high delay. + * Ideally, we would disable polling for the first trip point, but this isn't + * really possible without outrageous hacks. + */ + polling-delay-passive = <5000>; + polling-delay = <5000>; }; &gic {