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: 13368753 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 { From patchwork Tue Aug 29 09:18:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mateusz Majewski X-Patchwork-Id: 13368754 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 F27E6C83F21 for ; Tue, 29 Aug 2023 09:25:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234722AbjH2JYc (ORCPT ); Tue, 29 Aug 2023 05:24:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48730 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234788AbjH2JYY (ORCPT ); Tue, 29 Aug 2023 05:24:24 -0400 Received: from mailout1.w1.samsung.com (mailout1.w1.samsung.com [210.118.77.11]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 261C61BB for ; Tue, 29 Aug 2023 02:24:19 -0700 (PDT) Received: from eucas1p2.samsung.com (unknown [182.198.249.207]) by mailout1.w1.samsung.com (KnoxPortal) with ESMTP id 20230829092410euoutp012746c5d182095756853c5eaa23398ee0~-0FVgMsS-1651816518euoutp01z for ; Tue, 29 Aug 2023 09:24:10 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout1.w1.samsung.com 20230829092410euoutp012746c5d182095756853c5eaa23398ee0~-0FVgMsS-1651816518euoutp01z DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1693301050; bh=P34LvyBd3DIzM/01pFsL6osI5wPMYG7QBHPOp6UyW3s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=X11MX07hLbBYbNccF7kpbDKdpjaFxkhaRfi7+UAzCFNKfWk4ADgt3iI8piMrF3fna jPU/uCCFaLsXyVIIxjjDtr1dnomc6H/fCaXFasgZ4PwthM9UaCjVSaZCyro2bAh+bG Ren6/o5bimXRrZtrAS5CA3w7uD3ZPXBLcmkvuPfs= Received: from eusmges3new.samsung.com (unknown [203.254.199.245]) by eucas1p2.samsung.com (KnoxPortal) with ESMTP id 20230829092409eucas1p2eb7888fd7a048f0dc432839b8dc5a7c3~-0FU1W7b73169731697eucas1p2n; Tue, 29 Aug 2023 09:24:09 +0000 (GMT) Received: from eucas1p2.samsung.com ( [182.198.249.207]) by eusmges3new.samsung.com (EUCPMTA) with SMTP id 42.7F.37758.939BDE46; Tue, 29 Aug 2023 10:24:09 +0100 (BST) Received: from eusmtrp1.samsung.com (unknown [182.198.249.138]) by eucas1p2.samsung.com (KnoxPortal) with ESMTPA id 20230829092408eucas1p24901bbd192db03b69d774f2c5936f5b3~-0FUU3pn52802128021eucas1p2g; Tue, 29 Aug 2023 09:24:08 +0000 (GMT) Received: from eusmgms1.samsung.com (unknown [182.198.249.179]) by eusmtrp1.samsung.com (KnoxPortal) with ESMTP id 20230829092408eusmtrp1c398a84095b24b2ab9461cd879135176~-0FUULXbt3248032480eusmtrp1m; Tue, 29 Aug 2023 09:24:08 +0000 (GMT) X-AuditID: cbfec7f5-815ff7000002937e-39-64edb9399b8b Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms1.samsung.com (EUCPMTA) with SMTP id 09.D9.10549.839BDE46; Tue, 29 Aug 2023 10:24:08 +0100 (BST) Received: from AMDC4515.eu.corp.samsungelectronics.net (unknown [106.120.51.28]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20230829092407eusmtip21454f38562007fa2dbc8ea627f7f64ac~-0FTXL5VJ1173411734eusmtip2c; Tue, 29 Aug 2023 09:24:07 +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 02/11] thermal: exynos: drop id field Date: Tue, 29 Aug 2023 11:18:40 +0200 Message-ID: <20230829091853.626011-3-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+NgFjrDKsWRmVeSWpSXmKPExsWy7djP87qWO9+mGMycxWPxYN42NovD8yss pj58wmbxfct1Jos1e88xWcz7LGsx/8g5Vou+Fw+ZLb5d6WCy2PT4GqvF5V1z2Cw+9x5htJhx fh+TxcRjk5kt1h65y24x98tUZovWvUfYLZ487GNzEPLYOesuu8fiPS+ZPDat6mTzuHNtD5vH 5iX1Hn1bVjF6fN4kF8AexWWTkpqTWZZapG+XwJVxaOY/5oKj3BXbFvxmbWBczdnFyMkhIWAi ceT7OSYQW0hgBaPEjr/cXYxcQPYXRonre2cwQjifGSW+7u5gh+k4tHgCM0RiOaPErceHodpb mSQmHZAEsdkEDCQevFnGDlIkIrCYUWLrzllMIA6zwFwWiYaVP1lAqoQFTCU2rjwINpZFQFVi 9tsvrCA2r4CtxITvu9gg1slLPL91B6yGU8BOYvr5diaIGkGJkzOfgM1hBqpp3job7CQJgdmc EvMuvYNqdpFovPiPGcIWlnh1fAvUDzISpyf3sEDY+RIzNr8HsjmA7AqJuwe9IExriY9nmEFM ZgFNifW79CGKHSXO7PzIBlHBJ3HjrSDEAXwSk7ZNZ4YI80p0tAlBVKtKHN8zCWq9tMSTlttM ECUeEu9b9ScwKs5C8sksJJ/MQli7gJF5FaN4amlxbnpqsXFearlecWJucWleul5yfu4mRmCC O/3v+NcdjCtefdQ7xMjEwXiIUYKDWUmE95LjqxQh3pTEyqrUovz4otKc1OJDjNIcLErivNq2 J5OFBNITS1KzU1MLUotgskwcnFINTLYr9fe2WOtNnLnKSP3W6ryQx8GszzSPpLEuDnZd23ri rye74Mnr1XPDV+X9tzFoOxf545NE9X/7Xwsudubee/qY6dajlDuNGc9z2NhWSb46+vIh/565 /v3ZMQ37XF4YHF7rodux6aGRd8G2jRz7Jxyqy3XQ+s+VFDLxS+l++4bFUkyCuzuP3AxcVPfw 2SKvJ2dsvPdPzTM79+OSk332ZVnWR3eaIwt4r2b+PJkQJmaa8cZFvIhBs04tvWpxnqvgtVhB Rp7TLucFDAIfa5ycL96lcafnQ6etz6oyW6mGHcpuMwsncVgxT+Q/xsHnUhN20ui9V4Cur8vm wC6/A7v3mVWt7fR7HSZxLMtMwn6JEktxRqKhFnNRcSIA+qF7Fd8DAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrPIsWRmVeSWpSXmKPExsVy+t/xe7oWO9+mGDyar27xYN42NovD8yss pj58wmbxfct1Jos1e88xWcz7LGsx/8g5Vou+Fw+ZLb5d6WCy2PT4GqvF5V1z2Cw+9x5htJhx fh+TxcRjk5kt1h65y24x98tUZovWvUfYLZ487GNzEPLYOesuu8fiPS+ZPDat6mTzuHNtD5vH 5iX1Hn1bVjF6fN4kF8AepWdTlF9akqqQkV9cYqsUbWhhpGdoaaFnZGKpZ2hsHmtlZKqkb2eT kpqTWZZapG+XoJdxaOY/5oKj3BXbFvxmbWBczdnFyMkhIWAicWjxBGYQW0hgKaPEtXesEHFp icNfprBD2MISf651sXUxcgHVNDNJ7HnVwAKSYBMwkHjwZhk7SEJEYDmjxNV7y1lAHGaB5SwS z9d8ABsrLGAqsXHlQbBRLAKqErPffgFbwStgKzHh+y42iBXyEs9v3QGr4RSwk5h+vp0J4iRb iTUTzrFB1AtKnJz5BGwzM1B989bZzBMYBWYhSc1CklrAyLSKUSS1tDg3PbfYUK84Mbe4NC9d Lzk/dxMjMCa3Hfu5eQfjvFcf9Q4xMnEwHmKU4GBWEuG95PgqRYg3JbGyKrUoP76oNCe1+BCj KdDdE5mlRJPzgUkhryTe0MzA1NDEzNLA1NLMWEmc17OgI1FIID2xJDU7NbUgtQimj4mDU6qB SZ7vYSqP8bt870e/jk3dXatku3P5mfhTdtufBWe1XDtuL7D4UXfVjg3zhCSyivNuLtK1WzH7 3jLtN0GJUV7t21bE2R9f7xOa/y2kp0L2kxBXqMwM3yPHTun+sjp9/8jO6nefnOa81NRbyH75 lrfg4yzZHdVPXAwOS06/9P3GkkeTb1ZLijn2NNTdfjZtxnrlin4xZmv5Nwe2h8pemJbNn7Pf Lmhlk79KwLKgkPUNk7M6fHmyL8jZdzV//hu8RuTN95wtln8XZEhWxta/YOoR55xdsum2vUDr Xy59i+7X3j/qd1gpTD/3f9708MCcOwoCYtons+tObvr17b/JhcCWy8Hp8w9yffpRcWXR2+vP diixFGckGmoxFxUnAgBNkSLWUgMAAA== X-CMS-MailID: 20230829092408eucas1p24901bbd192db03b69d774f2c5936f5b3 X-Msg-Generator: CA X-RootMTR: 20230829092408eucas1p24901bbd192db03b69d774f2c5936f5b3 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20230829092408eucas1p24901bbd192db03b69d774f2c5936f5b3 References: <20230829091853.626011-1-m.majewski2@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org This field is not used in code, and seems to not have any meaning; in my tests, the value was always 0. Signed-off-by: Mateusz Majewski Reviewed-by: Krzysztof Kozlowski --- drivers/thermal/samsung/exynos_tmu.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index 45e5c840d130..70e9c0296ee1 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -138,7 +138,6 @@ enum soc_type { /** * struct exynos_tmu_data : A structure to hold the private data of the TMU * driver - * @id: identifier of the one instance of the TMU controller. * @base: base address of the single instance of the TMU controller. * @base_second: base address of the common registers of the TMU controller. * @irq: irq number of the TMU controller. @@ -173,7 +172,6 @@ enum soc_type { * @tmu_clear_irqs: SoC specific TMU interrupts clearing method */ struct exynos_tmu_data { - int id; void __iomem *base; void __iomem *base_second; int irq; @@ -866,10 +864,6 @@ static int exynos_map_dt_data(struct platform_device *pdev) if (!data || !pdev->dev.of_node) return -ENODEV; - data->id = of_alias_get_id(pdev->dev.of_node, "tmuctrl"); - if (data->id < 0) - data->id = 0; - data->irq = irq_of_parse_and_map(pdev->dev.of_node, 0); if (data->irq <= 0) { dev_err(&pdev->dev, "failed to get IRQ\n"); From patchwork Tue Aug 29 09:18:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mateusz Majewski X-Patchwork-Id: 13368752 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 4160BC83F1D for ; Tue, 29 Aug 2023 09:25:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234662AbjH2JY3 (ORCPT ); Tue, 29 Aug 2023 05:24:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48682 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234780AbjH2JYX (ORCPT ); Tue, 29 Aug 2023 05:24:23 -0400 Received: from mailout2.w1.samsung.com (mailout2.w1.samsung.com [210.118.77.12]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EE7431B9 for ; Tue, 29 Aug 2023 02:24:12 -0700 (PDT) Received: from eucas1p2.samsung.com (unknown [182.198.249.207]) by mailout2.w1.samsung.com (KnoxPortal) with ESMTP id 20230829092411euoutp02d5db66d0e78eecce387ce59379e8f9e0~-0FXIr5hI0404104041euoutp02f for ; Tue, 29 Aug 2023 09:24:11 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout2.w1.samsung.com 20230829092411euoutp02d5db66d0e78eecce387ce59379e8f9e0~-0FXIr5hI0404104041euoutp02f DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1693301051; bh=/YwrTa0ESS+UZ/KcX0BatXOuWIqWi30gs4sg9b7MyU0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VOZNT0Clqy0kIQPUk57NiBnuPrj9+JtU2MpUw3uHtZsVfLPvMYi1mFNN3ngBDd1B5 lDXw8sgZ75wLvF0/g3b/Jza0TjM8Hp/KOtOEaFOvOYuJtQbfpWiHKmCDxPpgaQ7ZGz ruterhyr1WgmrGYwI04n7LYtFcxfN36CHF2fsFcY= Received: from eusmges1new.samsung.com (unknown [203.254.199.242]) by eucas1p1.samsung.com (KnoxPortal) with ESMTP id 20230829092411eucas1p18948ca3df6f6049f2d055bb275baf85e~-0FWuLK-T2104121041eucas1p1U; Tue, 29 Aug 2023 09:24:11 +0000 (GMT) Received: from eucas1p2.samsung.com ( [182.198.249.207]) by eusmges1new.samsung.com (EUCPMTA) with SMTP id 76.D8.42423.B39BDE46; Tue, 29 Aug 2023 10:24:11 +0100 (BST) Received: from eusmtrp1.samsung.com (unknown [182.198.249.138]) by eucas1p2.samsung.com (KnoxPortal) with ESMTPA id 20230829092410eucas1p243a88662e8e64f0c406685931d9a80a3~-0FWVUtuh2471924719eucas1p20; Tue, 29 Aug 2023 09:24:10 +0000 (GMT) Received: from eusmgms1.samsung.com (unknown [182.198.249.179]) by eusmtrp1.samsung.com (KnoxPortal) with ESMTP id 20230829092410eusmtrp102d89b4ca0e1ae6ac30c2946642efee9~-0FWUlhyK3248032480eusmtrp1s; Tue, 29 Aug 2023 09:24:10 +0000 (GMT) X-AuditID: cbfec7f2-a3bff7000002a5b7-17-64edb93baa45 Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms1.samsung.com (EUCPMTA) with SMTP id BA.D9.10549.A39BDE46; Tue, 29 Aug 2023 10:24:10 +0100 (BST) Received: from AMDC4515.eu.corp.samsungelectronics.net (unknown [106.120.51.28]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20230829092409eusmtip2bf7f8cefba59264b42ba325b5b64538f~-0FVRYGrh0986509865eusmtip2Y; Tue, 29 Aug 2023 09:24:09 +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 03/11] thermal: exynos: switch from workqueue-driven interrupt handling to threaded interrupts Date: Tue, 29 Aug 2023 11:18:41 +0200 Message-ID: <20230829091853.626011-4-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+NgFjrJKsWRmVeSWpSXmKPExsWy7djP87rWO9+mGDz7x2fxYN42NovD8yss pj58wmbxfct1Jos1e88xWcz7LGsx/8g5Vou+Fw+ZLb5d6WCy2PT4GqvF5V1z2Cw+9x5htJhx fh+TxcRjk5kt1h65y24x98tUZovWvUfYLZ487GNzEPLYOesuu8fiPS+ZPDat6mTzuHNtD5vH 5iX1Hn1bVjF6fN4kF8AexWWTkpqTWZZapG+XwJVxa91WxoJVEhW/pvxlb2CcJ9LFyMkhIWAi Me3gc5YuRi4OIYEVjBJP1r5mhnC+MEq82LMWyvnMKPHh3TSgMg6wlvPPRCHiyxklvl1dxQ7h tDJJLPrykxlkLpuAgcSDN8vAEiICixkltu6cxQTiMAvMZZFoWPmTBaRKWKBAYsq6n6wgY1kE VCXm7WMDMXkFbCWmnraGuE9e4vmtO+wgNqeAncT08+1MIDavgKDEyZlPwKYwA9U0b53NDFE/ n1Pix79EiENdJB6ssIIIC0u8Or6FHcKWkTg9uYcFws6XmLH5PdRfFRJ3D3pBmNYSH88wg5jM ApoS63fpQ0QdJTq/uEGYfBI33gpCbOeTmLRtOjNEmFeio00IYrKqxPE9k6COkpZ40nKbCcL2 kFj3o5NxAqPiLCR/zELyxyyEtQsYmVcxiqeWFuempxYb5qWW6xUn5haX5qXrJefnbmIEprbT /45/2sE499VHvUOMTByMhxglOJiVRHgvOb5KEeJNSaysSi3Kjy8qzUktPsQozcGiJM6rbXsy WUggPbEkNTs1tSC1CCbLxMEp1cDU1CJ2Ydfsfm1n9VflG30UN16fqXtQzdpyQYpfcmSru3qw 3dllOtfXFU6vnHbNVyhy8pzpBlon94a+vd/X07Hk8xS/VO97kXsOmr5yr69/2qL3ObKx4lXK zjzeuqbtXtLpD82DhNUSYptVuDh0jbcH5hbeVlgwZVHoQp/VL6OfbzhzzGF3le06R1t2xWkK Jiybdbe9lHy57PO9O+9v+XIcbHJ5f5rZe9oUrjMFb15cOsk7K+1+47GOqi1ZWZeOyddWnGh8 UvPlmO18N63OqBe7nnnWa211OsNzN1nmqcGhOP/9W2bWz+X/UCRr0H07uC1+7ww+JvGcgoIV kRfPM3EsKDklnxFt8k1/j95RqXIlluKMREMt5qLiRACdlSYk3AMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrLIsWRmVeSWpSXmKPExsVy+t/xe7pWO9+mGByeZWjxYN42NovD8yss pj58wmbxfct1Jos1e88xWcz7LGsx/8g5Vou+Fw+ZLb5d6WCy2PT4GqvF5V1z2Cw+9x5htJhx fh+TxcRjk5kt1h65y24x98tUZovWvUfYLZ487GNzEPLYOesuu8fiPS+ZPDat6mTzuHNtD5vH 5iX1Hn1bVjF6fN4kF8AepWdTlF9akqqQkV9cYqsUbWhhpGdoaaFnZGKpZ2hsHmtlZKqkb2eT kpqTWZZapG+XoJdxa91WxoJVEhW/pvxlb2CcJ9LFyMEhIWAicf6ZaBcjF4eQwFJGiRc9v9m6 GDmB4tISh79MYYewhSX+XOtigyhqZpI4umoRE0iCTcBA4sGbZewgCRGB5YwSV+8tZwFxmAWW s0g8X/OBGaRKWCBPom/5KkaQdSwCqhLz9rGBmLwCthJTT1tDLJCXeH7rDtgyTgE7ienn28Hm CwGVrJlwDuwgXgFBiZMzn7CA2MxA9c1bZzNPYBSYhSQ1C0lqASPTKkaR1NLi3PTcYkO94sTc 4tK8dL3k/NxNjMB43Hbs5+YdjPNefdQ7xMjEwXiIUYKDWUmE95LjqxQh3pTEyqrUovz4otKc 1OJDjKZAV09klhJNzgcmhLySeEMzA1NDEzNLA1NLM2MlcV7Pgo5EIYH0xJLU7NTUgtQimD4m Dk6pBibvuAvm16YE3/HS+S+Tdzpc3fmfLUtX9sXKhUyOL39vsWMTu9CXe+bCjP8PpbK9Z3Dt jHf5Ln/+l/jpr2/iFb7sE3Q/kPROccIHraod1t6fd4Szf9ogW79ykli03Pd1O/esONd+ffnf /fIpBlwxrlYzai6/3bfzc8mVM6GdDL6z1Jd47Ja1dpfj3cHG7vJe4GlL20m16uTk+Xxfgs9d WJO3RVZIQoBp7/GKY6+YpBftk1prfzlxumP8A9dAl/rtV5kqLikvmWGtK8p/43ZM5ovFFySv lk56O1VGMm7z7Nd7jm2WCLQ4vvnSA6fe/U13v1tNbHh8XGGu95WfP0skP4Uxxf3zu6xj+1hv gqen8q9KJZbijERDLeai4kQA2g7wF1ADAAA= X-CMS-MailID: 20230829092410eucas1p243a88662e8e64f0c406685931d9a80a3 X-Msg-Generator: CA X-RootMTR: 20230829092410eucas1p243a88662e8e64f0c406685931d9a80a3 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20230829092410eucas1p243a88662e8e64f0c406685931d9a80a3 References: <20230829091853.626011-1-m.majewski2@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org The workqueue boilerplate is mostly one-to-one what the threaded interrupts do. Signed-off-by: Mateusz Majewski --- drivers/thermal/samsung/exynos_tmu.c | 28 ++++++++-------------------- 1 file changed, 8 insertions(+), 20 deletions(-) diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index 70e9c0296ee1..35b0a55017ad 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -142,7 +142,6 @@ enum soc_type { * @base_second: base address of the common registers of the TMU controller. * @irq: irq number of the TMU controller. * @soc: id of the SOC type. - * @irq_work: pointer to the irq work structure. * @lock: lock to implement synchronization. * @clk: pointer to the clock structure. * @clk_sec: pointer to the clock structure for accessing the base_second. @@ -176,7 +175,6 @@ struct exynos_tmu_data { void __iomem *base_second; int irq; enum soc_type soc; - struct work_struct irq_work; struct mutex lock; struct clk *clk, *clk_sec, *sclk; u32 cal_type; @@ -764,10 +762,9 @@ static int exynos7_tmu_read(struct exynos_tmu_data *data) EXYNOS7_TMU_TEMP_MASK; } -static void exynos_tmu_work(struct work_struct *work) +static irqreturn_t exynos_tmu_threaded_irq(int irq, void *id) { - struct exynos_tmu_data *data = container_of(work, - struct exynos_tmu_data, irq_work); + struct exynos_tmu_data *data = id; thermal_zone_device_update(data->tzd, THERMAL_EVENT_UNSPECIFIED); @@ -779,7 +776,8 @@ static void exynos_tmu_work(struct work_struct *work) clk_disable(data->clk); mutex_unlock(&data->lock); - enable_irq(data->irq); + + return IRQ_HANDLED; } static void exynos4210_tmu_clear_irqs(struct exynos_tmu_data *data) @@ -813,16 +811,6 @@ static void exynos4210_tmu_clear_irqs(struct exynos_tmu_data *data) writel(val_irq, data->base + tmu_intclear); } -static irqreturn_t exynos_tmu_irq(int irq, void *id) -{ - struct exynos_tmu_data *data = id; - - disable_irq_nosync(irq); - schedule_work(&data->irq_work); - - return IRQ_HANDLED; -} - static const struct of_device_id exynos_tmu_match[] = { { .compatible = "samsung,exynos3250-tmu", @@ -1024,8 +1012,6 @@ static int exynos_tmu_probe(struct platform_device *pdev) if (ret) goto err_sensor; - INIT_WORK(&data->irq_work, exynos_tmu_work); - data->clk = devm_clk_get(&pdev->dev, "tmu_apbif"); if (IS_ERR(data->clk)) { dev_err(&pdev->dev, "Failed to get clock\n"); @@ -1094,8 +1080,10 @@ static int exynos_tmu_probe(struct platform_device *pdev) goto err_sclk; } - ret = devm_request_irq(&pdev->dev, data->irq, exynos_tmu_irq, - IRQF_TRIGGER_RISING | IRQF_SHARED, dev_name(&pdev->dev), data); + ret = devm_request_threaded_irq( + &pdev->dev, data->irq, NULL, exynos_tmu_threaded_irq, + IRQF_TRIGGER_RISING | IRQF_SHARED | IRQF_ONESHOT, + dev_name(&pdev->dev), data); if (ret) { dev_err(&pdev->dev, "Failed to request irq: %d\n", data->irq); goto err_sclk; From patchwork Tue Aug 29 09:18:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mateusz Majewski X-Patchwork-Id: 13368750 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 962EAC6FA8F for ; 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Tue, 29 Aug 2023 09:24:12 +0000 (GMT) X-AuditID: cbfec7f5-815ff7000002937e-43-64edb93cbb05 Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms1.samsung.com (EUCPMTA) with SMTP id ED.D9.10549.C39BDE46; Tue, 29 Aug 2023 10:24:12 +0100 (BST) Received: from AMDC4515.eu.corp.samsungelectronics.net (unknown [106.120.51.28]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20230829092411eusmtip28a316e30a2b60f07dd72a3c2872f77ed~-0FWvvzIj0629806298eusmtip2i; Tue, 29 Aug 2023 09:24:11 +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 04/11] thermal: exynos: remove fine-grained clk management Date: Tue, 29 Aug 2023 11:18:42 +0200 Message-ID: <20230829091853.626011-5-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+NgFjrHKsWRmVeSWpSXmKPExsWy7djP87o2O9+mGOxu17V4MG8bm8Xh+RUW Ux8+YbP4vuU6k8WaveeYLOZ9lrWYf+Qcq0Xfi4fMFt+udDBZbHp8jdXi8q45bBafe48wWsw4 v4/JYuKxycwWa4/cZbeY+2Uqs0Xr3iPsFk8e9rE5CHnsnHWX3WPxnpdMHptWdbJ53Lm2h81j 85J6j74tqxg9Pm+SC2CP4rJJSc3JLEst0rdL4Mq4su4uU8EthYrnN5axNjD+kupi5OSQEDCR mPX5P2sXIxeHkMAKRomLH7exQzhfGCXOdW5mgnA+M0rcu7aVBablfsNuNojEcqCWtZcYIZxW JomWBx+ZQarYBAwkHrxZBjZLRGAxo8TWnbPAZjELzGWRaFj5E2yWsICXxNQLWxlBbBYBVYmW re/AbF4BW4nzx2ezQ+yTl3h+6w6YzSlgJzH9fDsTRI2gxMmZT8DmMAPVNG+dzQxRP51T4sxK NgjbRWL1iXaouLDEq+NboGbKSJye3AP1T77EjM3vgWwOILtC4u5BLwjTWuLjGWYQk1lAU2L9 Ln2IYkeJO82PWSEq+CRuvBWE2M8nMWnbdGaIMK9ER5sQRLWqxPE9k6DWS0s8abnNBGF7SNx+ c519AqPiLCSfzELyySyEvQsYmVcxiqeWFuempxYb56WW6xUn5haX5qXrJefnbmIEJrnT/45/ 3cG44tVHvUOMTByMhxglOJiVRHgvOb5KEeJNSaysSi3Kjy8qzUktPsQozcGiJM6rbXsyWUgg PbEkNTs1tSC1CCbLxMEp1cBU4eR6l4O/3Kiy7+ORV4me6/+ztd3+G/Bl0bkEuTkJ7ddmSW1+ tWrqsff6v88E3Cvn2SWaf51rdeRPRonaMx/uzKoS2jH1o09rWNzNKwfFp/mdn5C3Rf5oXM1M V40LnT7vJhjb7Lrpy+ry55mSx/fEjeVFTrvXz562QEvr77FMrw2PXizR5pEyVVwQf2rSujfn Z52fva/3am6dxd3InxsNLK4Za57LfNme1/P3vL7M0rBUp6ol4Rc33FC7qNJZI//c7c4+3YwJ AsorJXIjZulqXg9lD2Xc77HspS9DR4bevrM1389sfnq69Iu2VnXWeS9b6ftFK7XeLlq83jmm V/jmp13a63Uel9atzb3Rs+uHuhJLcUaioRZzUXEiAN82OdrhAwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrAIsWRmVeSWpSXmKPExsVy+t/xe7o2O9+mGDw/JGDxYN42NovD8yss pj58wmbxfct1Jos1e88xWcz7LGsx/8g5Vou+Fw+ZLb5d6WCy2PT4GqvF5V1z2Cw+9x5htJhx fh+TxcRjk5kt1h65y24x98tUZovWvUfYLZ487GNzEPLYOesuu8fiPS+ZPDat6mTzuHNtD5vH 5iX1Hn1bVjF6fN4kF8AepWdTlF9akqqQkV9cYqsUbWhhpGdoaaFnZGKpZ2hsHmtlZKqkb2eT kpqTWZZapG+XoJdxZd1dpoJbChXPbyxjbWD8JdXFyMkhIWAicb9hN1sXIxeHkMBSRom/fe2M EAlpicNfprBD2MISf651QRU1M0kseb6FBSTBJmAg8eDNMnaQhIjAckaJq/eWs4A4zALLWSSe r/nADFIlLOAlMfXCVrCxLAKqEi1b34HZvAK2EuePz4ZaIS/x/NYdMJtTwE5i+vl2JhBbCKhm zYRzbBD1ghInZz4B28wMVN+8dTbzBEaBWUhSs5CkFjAyrWIUSS0tzk3PLTbUK07MLS7NS9dL zs/dxAiMym3Hfm7ewTjv1Ue9Q4xMHIyHGCU4mJVEeC85vkoR4k1JrKxKLcqPLyrNSS0+xGgK dPdEZinR5HxgWsgriTc0MzA1NDGzNDC1NDNWEuf1LOhIFBJITyxJzU5NLUgtgulj4uCUamAy z4xzPZB5XYxFzPxXv/30QB6lpqqlMmsW5exz/JT/mmn1mt+zfz06vztmhde0uew3ivKPGRc1 8tUnaoVs/cI84e3TQMF5NSt3nA25pniRd7772wZFoTb/TRtrsg5opbd/jjA7+oyD2eLtxSXq Fq4zOy4yOHrb34qqLiiYduP1RdO3X1iW1tnzXOd7VC0258zHBU9ZJMqWWh95nDdDw/f75oW2 7lvezVoryxNuz57ywHmVTGLytw35s+bdC/wgeY6x/wXzV95PXFzT9zfxvSpW5zHe6nvIa8fE v/r3LjDM1lyeE8HMUqYp+luK0+BB7/OeKRPEonxazf5UpjzIcdx83MFeJcVe5Kdd+FR2h7lK LMUZiYZazEXFiQDCK5BvUwMAAA== X-CMS-MailID: 20230829092412eucas1p2b79a6f90b9077a3a5486845b7e68bbc6 X-Msg-Generator: CA X-RootMTR: 20230829092412eucas1p2b79a6f90b9077a3a5486845b7e68bbc6 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20230829092412eucas1p2b79a6f90b9077a3a5486845b7e68bbc6 References: <20230829091853.626011-1-m.majewski2@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org This clock only controls the register operations. The gain in power efficiency is therefore quite dubious, while there is price of added complexity that is important to get right (as a register operation might outright hang the CPU if the clock is not enabled). Signed-off-by: Mateusz Majewski --- drivers/thermal/samsung/exynos_tmu.c | 25 +++---------------------- 1 file changed, 3 insertions(+), 22 deletions(-) diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index 35b0a55017ad..2c5501704911 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -275,7 +275,6 @@ static int exynos_tmu_initialize(struct platform_device *pdev) } mutex_lock(&data->lock); - clk_enable(data->clk); if (!IS_ERR(data->clk_sec)) clk_enable(data->clk_sec); @@ -305,7 +304,6 @@ static int exynos_tmu_initialize(struct platform_device *pdev) data->tmu_clear_irqs(data); } err: - clk_disable(data->clk); mutex_unlock(&data->lock); if (!IS_ERR(data->clk_sec)) clk_disable(data->clk_sec); @@ -336,10 +334,8 @@ static void exynos_tmu_control(struct platform_device *pdev, bool on) struct exynos_tmu_data *data = platform_get_drvdata(pdev); mutex_lock(&data->lock); - clk_enable(data->clk); data->tmu_control(pdev, on); data->enabled = on; - clk_disable(data->clk); mutex_unlock(&data->lock); } @@ -654,7 +650,6 @@ static int exynos_get_temp(struct thermal_zone_device *tz, int *temp) return -EAGAIN; mutex_lock(&data->lock); - clk_enable(data->clk); value = data->tmu_read(data); if (value < 0) @@ -662,7 +657,6 @@ static int exynos_get_temp(struct thermal_zone_device *tz, int *temp) else *temp = code_to_temp(data, value) * MCELSIUS; - clk_disable(data->clk); mutex_unlock(&data->lock); return ret; @@ -729,9 +723,7 @@ static int exynos_tmu_set_emulation(struct thermal_zone_device *tz, int temp) goto out; mutex_lock(&data->lock); - clk_enable(data->clk); data->tmu_set_emulation(data, temp); - clk_disable(data->clk); mutex_unlock(&data->lock); return 0; out: @@ -769,12 +761,10 @@ static irqreturn_t exynos_tmu_threaded_irq(int irq, void *id) thermal_zone_device_update(data->tzd, THERMAL_EVENT_UNSPECIFIED); mutex_lock(&data->lock); - clk_enable(data->clk); /* TODO: take action based on particular interrupt */ data->tmu_clear_irqs(data); - clk_disable(data->clk); mutex_unlock(&data->lock); return IRQ_HANDLED; @@ -1012,7 +1002,7 @@ static int exynos_tmu_probe(struct platform_device *pdev) if (ret) goto err_sensor; - data->clk = devm_clk_get(&pdev->dev, "tmu_apbif"); + data->clk = devm_clk_get_enabled(&pdev->dev, "tmu_apbif"); if (IS_ERR(data->clk)) { dev_err(&pdev->dev, "Failed to get clock\n"); ret = PTR_ERR(data->clk); @@ -1034,12 +1024,6 @@ static int exynos_tmu_probe(struct platform_device *pdev) } } - ret = clk_prepare(data->clk); - if (ret) { - dev_err(&pdev->dev, "Failed to get clock\n"); - goto err_clk_sec; - } - switch (data->soc) { case SOC_ARCH_EXYNOS5433: case SOC_ARCH_EXYNOS7: @@ -1047,12 +1031,12 @@ static int exynos_tmu_probe(struct platform_device *pdev) if (IS_ERR(data->sclk)) { dev_err(&pdev->dev, "Failed to get sclk\n"); ret = PTR_ERR(data->sclk); - goto err_clk; + goto err_clk_sec; } else { ret = clk_prepare_enable(data->sclk); if (ret) { dev_err(&pdev->dev, "Failed to enable sclk\n"); - goto err_clk; + goto err_clk_sec; } } break; @@ -1094,8 +1078,6 @@ static int exynos_tmu_probe(struct platform_device *pdev) err_sclk: clk_disable_unprepare(data->sclk); -err_clk: - clk_unprepare(data->clk); err_clk_sec: if (!IS_ERR(data->clk_sec)) clk_unprepare(data->clk_sec); @@ -1113,7 +1095,6 @@ static int exynos_tmu_remove(struct platform_device *pdev) exynos_tmu_control(pdev, false); clk_disable_unprepare(data->sclk); - clk_unprepare(data->clk); if (!IS_ERR(data->clk_sec)) clk_unprepare(data->clk_sec); From patchwork Tue Aug 29 09:18:43 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mateusz Majewski X-Patchwork-Id: 13368751 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 0B619C83F1B for ; Tue, 29 Aug 2023 09:25:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234700AbjH2JYa (ORCPT ); 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Tue, 29 Aug 2023 09:24:15 +0000 (GMT) X-AuditID: cbfec7f5-815ff7000002937e-54-64edb940cb7a Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms1.samsung.com (EUCPMTA) with SMTP id 32.E9.10549.F39BDE46; Tue, 29 Aug 2023 10:24:15 +0100 (BST) Received: from AMDC4515.eu.corp.samsungelectronics.net (unknown [106.120.51.28]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20230829092414eusmtip2660964aafb50caa1e630ce78f05556a2~-0FaHHqt10629806298eusmtip2j; Tue, 29 Aug 2023 09:24:14 +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 05/11] thermal: exynos: simplify sclk (de)initialization Date: Tue, 29 Aug 2023 11:18:43 +0200 Message-ID: <20230829091853.626011-6-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+NgFjrLKsWRmVeSWpSXmKPExsWy7djPc7oOO9+mGMxcLmrxYN42NovD8yss pj58wmbxfct1Jos1e88xWcz7LGsx/8g5Vou+Fw+ZLb5d6WCy2PT4GqvF5V1z2Cw+9x5htJhx fh+TxcRjk5kt1h65y24x98tUZovWvUfYLZ487GNzEPLYOesuu8fiPS+ZPDat6mTzuHNtD5vH 5iX1Hn1bVjF6fN4kF8AexWWTkpqTWZZapG+XwJVxtOkRW8EGwYqFPx6wNDBO5uti5OCQEDCR OHq4sIuRi0NIYAWjxIepi5khnC+MEt2bj0M5nxklZp45zNLFyAnWcWPbCjaIxHJGiWcnJ4Al hARamSQWnk8FsdkEDCQevFnGDlIkIrCYUWLrzllMIA6zwFwWiYaVP8E6hAU8JJ49WMwEYrMI qEq0X5nPDGLzCthKTLu1kAlinbzE81t32EFsTgE7ienn25kgagQlTs58AjaHGaimeetssFsl BKZzSvxvv8gO0ewicXTuJihbWOLV8S1QtozE6ck9UP/kS8zY/J4FEhoVEncPekGY1hIfzzCD mMwCmhLrd+lDFDtK7Ds/iRWigk/ixltBiAP4JCZtm84MEeaV6GgTgqhWlTi+ZxIzhC0t8aTl NtRPHhIvli1nmcCoOAvJK7OQvDILYe8CRuZVjOKppcW56anFxnmp5XrFibnFpXnpesn5uZsY gSnu9L/jX3cwrnj1Ue8QIxMH4yFGCQ5mJRHeS46vUoR4UxIrq1KL8uOLSnNSiw8xSnOwKInz atueTBYSSE8sSc1OTS1ILYLJMnFwSjUwqdwJ+r3y3zkfj2eXlsw+P1u6dVPEvUuLlhptXVjc s0nn5LtZJw+JSCT+uPNtyr9FlXJ/FkWHfG7UOJ245EfJ7fidq+q/WKicX+WukJ4ltWaF35KV u71yuRm8z/DdrVBUMc6W5UnqWR2TfuL01e3hK/8UXX5u7d1UbNVjfzxowazUS+7L34pEK2gy 1btON9y+Mnhq86OPss85o+5ZnTvMmLZ66Srh9D0/X7YfzfA9M6vnomaQpMD5OPGvaxYu+yJ8 iDudZdKzs5GizdtnLP/l+3RvUGJl363OgxvF95Q4nkva9S/o+671jG9uVsWoVO99vO8IQ6/E 8s3Fzw63Laub7nrh9wMz8+LMR3lHr+izzmlRYinOSDTUYi4qTgQAFLV/FOADAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrPIsWRmVeSWpSXmKPExsVy+t/xe7r2O9+mGDzZambxYN42NovD8yss pj58wmbxfct1Jos1e88xWcz7LGsx/8g5Vou+Fw+ZLb5d6WCy2PT4GqvF5V1z2Cw+9x5htJhx fh+TxcRjk5kt1h65y24x98tUZovWvUfYLZ487GNzEPLYOesuu8fiPS+ZPDat6mTzuHNtD5vH 5iX1Hn1bVjF6fN4kF8AepWdTlF9akqqQkV9cYqsUbWhhpGdoaaFnZGKpZ2hsHmtlZKqkb2eT kpqTWZZapG+XoJdxtOkRW8EGwYqFPx6wNDBO5uti5OSQEDCRuLFtBRuILSSwlFGi4bYURFxa 4vCXKewQtrDEn2tdQDVcQDXNTBKvL+9kBkmwCRhIPHizjB0kISKwnFHi6r3lLCAOs8ByFonn az6AVQkLeEg8e7CYCcRmEVCVaL8yHyzOK2ArMe3WQiaIFfISz2/dAVvHKWAnMf18OxPESbYS ayacY4OoF5Q4OfMJC4jNDFTfvHU28wRGgVlIUrOQpBYwMq1iFEktLc5Nzy021CtOzC0uzUvX S87P3cQIjMltx35u3sE479VHvUOMTByMhxglOJiVRHgvOb5KEeJNSaysSi3Kjy8qzUktPsRo CnT3RGYp0eR8YFLIK4k3NDMwNTQxszQwtTQzVhLn9SzoSBQSSE8sSc1OTS1ILYLpY+LglGpg WtXb4xm7cOIaPskfFt/lFn21n6m1qH5VsdP7w19jlKbrlpxZ3zPTb35/imyAeLza/U9Z8z8o rTi5X99NcMq5tSn9PYvNkpNOFe3h6vrKtFFx6ZqdTXsautPdk67MKTh6ZU3UWcbmpy+26/ez dHZ03JL9E3GG753Pni0/9T2mhrx3XzN37eKi47PtpcsrQvTMHfiuebq0/ClN4Dg+3aU0eFFI 7nvtIwmrBSrXbVhb4uwf6993ypjnilvibinrhG7RY0Zq7vMv5m5RtprUqVAuV7suTmj7Kiun oCVXNr75deOiYFDJfdnUOUqJJcKvN+eFq+lOzPA9cTJvx82HqyYuET28pM3wyNQLOtNFan0d lFiKMxINtZiLihMBcVqSklIDAAA= X-CMS-MailID: 20230829092415eucas1p1cb4d56f908e7851297b2c4ed59984b2f X-Msg-Generator: CA X-RootMTR: 20230829092415eucas1p1cb4d56f908e7851297b2c4ed59984b2f X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20230829092415eucas1p1cb4d56f908e7851297b2c4ed59984b2f References: <20230829091853.626011-1-m.majewski2@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org There's no need to enable the clock separately, and this also allows us to delegate the deinitialization to devm entirely. Signed-off-by: Mateusz Majewski --- drivers/thermal/samsung/exynos_tmu.c | 17 ++++------------- 1 file changed, 4 insertions(+), 13 deletions(-) diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index 2c5501704911..49e9157c3dc7 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -1027,17 +1027,11 @@ static int exynos_tmu_probe(struct platform_device *pdev) switch (data->soc) { case SOC_ARCH_EXYNOS5433: case SOC_ARCH_EXYNOS7: - data->sclk = devm_clk_get(&pdev->dev, "tmu_sclk"); + data->sclk = devm_clk_get_enabled(&pdev->dev, "tmu_sclk"); if (IS_ERR(data->sclk)) { dev_err(&pdev->dev, "Failed to get sclk\n"); ret = PTR_ERR(data->sclk); goto err_clk_sec; - } else { - ret = clk_prepare_enable(data->sclk); - if (ret) { - dev_err(&pdev->dev, "Failed to enable sclk\n"); - goto err_clk_sec; - } } break; default: @@ -1055,13 +1049,13 @@ static int exynos_tmu_probe(struct platform_device *pdev) if (ret != -EPROBE_DEFER) dev_err(&pdev->dev, "Failed to register sensor: %d\n", ret); - goto err_sclk; + goto err_clk_sec; } ret = exynos_tmu_initialize(pdev); if (ret) { dev_err(&pdev->dev, "Failed to initialize TMU\n"); - goto err_sclk; + goto err_clk_sec; } ret = devm_request_threaded_irq( @@ -1070,14 +1064,12 @@ static int exynos_tmu_probe(struct platform_device *pdev) dev_name(&pdev->dev), data); if (ret) { dev_err(&pdev->dev, "Failed to request irq: %d\n", data->irq); - goto err_sclk; + goto err_clk_sec; } exynos_tmu_control(pdev, true); return 0; -err_sclk: - clk_disable_unprepare(data->sclk); err_clk_sec: if (!IS_ERR(data->clk_sec)) clk_unprepare(data->clk_sec); @@ -1094,7 +1086,6 @@ static int exynos_tmu_remove(struct platform_device *pdev) exynos_tmu_control(pdev, false); - clk_disable_unprepare(data->sclk); if (!IS_ERR(data->clk_sec)) clk_unprepare(data->clk_sec); From patchwork Tue Aug 29 09:18:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mateusz Majewski X-Patchwork-Id: 13368757 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 1A382C83F19 for ; 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Tue, 29 Aug 2023 09:24:17 +0000 (GMT) X-AuditID: cbfec7f4-97dff70000022c38-1d-64edb942d3a9 Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms1.samsung.com (EUCPMTA) with SMTP id 27.E9.10549.149BDE46; Tue, 29 Aug 2023 10:24:17 +0100 (BST) Received: from AMDC4515.eu.corp.samsungelectronics.net (unknown [106.120.51.28]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20230829092416eusmtip27357c43634c3501df0df9b98f0422dcb~-0Fb-Yloe0986509865eusmtip2f; Tue, 29 Aug 2023 09:24:16 +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 06/11] thermal: exynos: simplify regulator (de)initialization Date: Tue, 29 Aug 2023 11:18:44 +0200 Message-ID: <20230829091853.626011-7-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+NgFjrDKsWRmVeSWpSXmKPExsWy7djP87pOO9+mGJz7KGTxYN42NovD8yss pj58wmbxfct1Jos1e88xWcz7LGsx/8g5Vou+Fw+ZLb5d6WCy2PT4GqvF5V1z2Cw+9x5htJhx fh+TxcRjk5kt1h65y24x98tUZovWvUfYLZ487GNzEPLYOesuu8fiPS+ZPDat6mTzuHNtD5vH 5iX1Hn1bVjF6fN4kF8AexWWTkpqTWZZapG+XwJUxacJ79oJJkhXd/+6zNzBuFeli5OSQEDCR +PTlIXsXIxeHkMAKRomp3ReYQBJCAl8YJS7uiYOwPzNKbF8pCtNw6uszZoiG5YwS1xcvZYQo amWSmLtOEsRmEzCQePBmGdhUEYHFjBJbd85iAnGYBeaySDSs/MkCUiUs4C/x9dplsG4WAVWJ 9+v2s4HYvAK2EvNbbzJDrJOXeH7rDjuIzSlgJzH9fDsTRI2gxMmZT8DmMAPVNG+dDXaShMBs Tol5ix+wQTS7SLRunsAIYQtLvDq+hR3ClpE4PbmHBcLOl5ix+T2QzQFkV0jcPegFYVpLfDzD DGIyC2hKrN+lD1HsKHF41wcmiAo+iRtvBSEO4JOYtG06M0SYV6KjTQiiWlXi+J5JUH9ISzxp uc0EYXtItGzsYJnAqDgLySuzkLwyC2HvAkbmVYziqaXFuempxUZ5qeV6xYm5xaV56XrJ+bmb GIEJ7vS/4192MC5/9VHvECMTB+MhRgkOZiUR3kuOr1KEeFMSK6tSi/Lji0pzUosPMUpzsCiJ 82rbnkwWEkhPLEnNTk0tSC2CyTJxcEo1MEnfybxeO0vy2V09SbblJk6bdhSuf736sXvpb12B pJBUC43DDbnzpWp1rRe2yap6yKjY15+abpW5YuG7o1uMIrrCp/ZtXhIW+u72VfdIqxe3p3+M uNxwj0O5yHL3zr0O78yWZDrzlfdWq9csqso98Hfj5L9/J128xxdz7LRm/+tpF1Ym/OY6eDdW pEwwxN+qUrErt9xy7rQHcRLPdVn8xXqM//z5xMb89+2y8x5PNMSOPpB88fQA/+bKYzM2u/ly 7lPN850cfonv5nUF9nQ74WWWzm9W9jGnT013YdbctIJt5mq9GdaTOn+c/3yUO/TDDsYHxaeZ J66fHNEka5pbH5Mqzhe9bMV3CYciqb1Jx5RYijMSDbWYi4oTAcFTSNXfAwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrPIsWRmVeSWpSXmKPExsVy+t/xe7qOO9+mGBzeaW7xYN42NovD8yss pj58wmbxfct1Jos1e88xWcz7LGsx/8g5Vou+Fw+ZLb5d6WCy2PT4GqvF5V1z2Cw+9x5htJhx fh+TxcRjk5kt1h65y24x98tUZovWvUfYLZ487GNzEPLYOesuu8fiPS+ZPDat6mTzuHNtD5vH 5iX1Hn1bVjF6fN4kF8AepWdTlF9akqqQkV9cYqsUbWhhpGdoaaFnZGKpZ2hsHmtlZKqkb2eT kpqTWZZapG+XoJcxacJ79oJJkhXd/+6zNzBuFeli5OSQEDCROPX1GXMXIxeHkMBSRon7B5ey QySkJQ5/mQJlC0v8udbFBlHUzCSx8/FURpAEm4CBxIM3y9hBEiICyxklrt5bzgLiMAssZ5F4 vuYD0FwODmEBX4n+VTogDSwCqhLv1+1nA7F5BWwl5rfeZIbYIC/x/NYdsG2cAnYS08+3M4HY QkA1ayacg6oXlDg58wkLiM0MVN+8dTbzBEaBWUhSs5CkFjAyrWIUSS0tzk3PLTbUK07MLS7N S9dLzs/dxAiMyW3Hfm7ewTjv1Ue9Q4xMHIyHGCU4mJVEeC85vkoR4k1JrKxKLcqPLyrNSS0+ xGgKdPdEZinR5HxgUsgriTc0MzA1NDGzNDC1NDNWEuf1LOhIFBJITyxJzU5NLUgtgulj4uCU amDyCdF+/WuDn+TR25pGFY2vJ2W/SrrjwyWwLPHqfo8nPvqJ1/t/WU9Y4LhH5J9E6Qzl3WqM p/aY887MWyRcnVAjOOtekYte8BmlrLMz7idZLrst/lTTIeXA9QZB/otxuTmXjRLb4/9PNQ1d Ih1wZ6/2gg8Zj7R1rG7offohKmZ7yVIu8Ok132M730pPav/L82Ja2eUXnCJpLIyrtnpUuzws Uoh0Kr59MV1mm/ynvdOP7tgSunnp33LL2MdBu/uyLffOr2+Xn//84UvDxJP8ZlMqljmuk1PX rmWI7Wq1nvt2qZSF5fKjTklFPxctqHOuKzBnVJopXbmWM1FxmcC2Xffld4hGxDiFT99cOt/7 gK8SS3FGoqEWc1FxIgBvIzS5UgMAAA== X-CMS-MailID: 20230829092417eucas1p187216bed157d5fb8472780688cf746d2 X-Msg-Generator: CA X-RootMTR: 20230829092417eucas1p187216bed157d5fb8472780688cf746d2 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20230829092417eucas1p187216bed157d5fb8472780688cf746d2 References: <20230829091853.626011-1-m.majewski2@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org This does reduce the error granularity a bit, but the code simplification seems to be worth it. Signed-off-by: Mateusz Majewski --- drivers/thermal/samsung/exynos_tmu.c | 33 +++++++--------------------- 1 file changed, 8 insertions(+), 25 deletions(-) diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index 49e9157c3dc7..5c08212ff8ac 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -157,7 +157,6 @@ enum soc_type { * @reference_voltage: reference voltage of amplifier * in the positive-TC generator block * 0 < reference_voltage <= 31 - * @regulator: pointer to the TMU regulator structure. * @reg_conf: pointer to structure to register with core thermal. * @tzd: pointer to thermal_zone_device structure * @ntrip: number of supported trip points. @@ -184,7 +183,6 @@ struct exynos_tmu_data { u16 temp_error1, temp_error2; u8 gain; u8 reference_voltage; - struct regulator *regulator; struct thermal_zone_device *tzd; unsigned int ntrip; bool enabled; @@ -985,42 +983,34 @@ static int exynos_tmu_probe(struct platform_device *pdev) * TODO: Add regulator as an SOC feature, so that regulator enable * is a compulsory call. */ - data->regulator = devm_regulator_get_optional(&pdev->dev, "vtmu"); - if (!IS_ERR(data->regulator)) { - ret = regulator_enable(data->regulator); - if (ret) { - dev_err(&pdev->dev, "failed to enable vtmu\n"); - return ret; - } - } else { - if (PTR_ERR(data->regulator) == -EPROBE_DEFER) + ret = devm_regulator_get_enable_optional(&pdev->dev, "vtmu"); + if (ret) { + if (ret == -EPROBE_DEFER) return -EPROBE_DEFER; - dev_info(&pdev->dev, "Regulator node (vtmu) not found\n"); + dev_info(&pdev->dev, "Failed to get regulator node (vtmu)\n"); } ret = exynos_map_dt_data(pdev); if (ret) - goto err_sensor; + return ret; data->clk = devm_clk_get_enabled(&pdev->dev, "tmu_apbif"); if (IS_ERR(data->clk)) { dev_err(&pdev->dev, "Failed to get clock\n"); - ret = PTR_ERR(data->clk); - goto err_sensor; + return PTR_ERR(data->clk); } data->clk_sec = devm_clk_get(&pdev->dev, "tmu_triminfo_apbif"); if (IS_ERR(data->clk_sec)) { if (data->soc == SOC_ARCH_EXYNOS5420_TRIMINFO) { dev_err(&pdev->dev, "Failed to get triminfo clock\n"); - ret = PTR_ERR(data->clk_sec); - goto err_sensor; + return PTR_ERR(data->clk_sec); } } else { ret = clk_prepare(data->clk_sec); if (ret) { dev_err(&pdev->dev, "Failed to get clock\n"); - goto err_sensor; + return ret; } } @@ -1073,10 +1063,6 @@ static int exynos_tmu_probe(struct platform_device *pdev) err_clk_sec: if (!IS_ERR(data->clk_sec)) clk_unprepare(data->clk_sec); -err_sensor: - if (!IS_ERR(data->regulator)) - regulator_disable(data->regulator); - return ret; } @@ -1089,9 +1075,6 @@ static int exynos_tmu_remove(struct platform_device *pdev) if (!IS_ERR(data->clk_sec)) clk_unprepare(data->clk_sec); - if (!IS_ERR(data->regulator)) - regulator_disable(data->regulator); - return 0; } From patchwork Tue Aug 29 09:18:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mateusz Majewski X-Patchwork-Id: 13368755 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 C1C6CC83F16 for ; 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Tue, 29 Aug 2023 09:24:19 +0000 (GMT) X-AuditID: cbfec7f2-a3bff7000002a5b7-40-64edb943e032 Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms2.samsung.com (EUCPMTA) with SMTP id 9D.8B.14344.349BDE46; Tue, 29 Aug 2023 10:24:19 +0100 (BST) Received: from AMDC4515.eu.corp.samsungelectronics.net (unknown [106.120.51.28]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20230829092418eusmtip22e91e730285b16a75a1459994fbd299d~-0FdcuXGj1173411734eusmtip2l; Tue, 29 Aug 2023 09:24:18 +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 07/11] thermal: exynos: simplify clk_sec (de)initialization Date: Tue, 29 Aug 2023 11:18:45 +0200 Message-ID: <20230829091853.626011-8-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+NgFjrLKsWRmVeSWpSXmKPExsWy7djPc7rOO9+mGJy9Y2bxYN42NovD8yss pj58wmbxfct1Jos1e88xWcz7LGsx/8g5Vou+Fw+ZLb5d6WCy2PT4GqvF5V1z2Cw+9x5htJhx fh+TxcRjk5kt1h65y24x98tUZovWvUfYLZ487GNzEPLYOesuu8fiPS+ZPDat6mTzuHNtD5vH 5iX1Hn1bVjF6fN4kF8AexWWTkpqTWZZapG+XwJUx7/ts9oKDkhWrPvxha2C8J9LFyMkhIWAi sfb6MXYQW0hgBaPEvbt5XYxcQPYXRonre9+zQTifGSV6m44zdzFygHUc3F8AEV/OKLG57RBU USuTxM2nN1hBRrEJGEg8eLOMHSQhIrCYUWLrzllMIA6zwFwWiYaVP1lAqoQFvCX+zZ7DDGKz CKhKLPj6BOwQXgFbia/9Z1ghDpSXeH7rDlicU8BOYvr5diaIGkGJkzOfgM1hBqpp3jqbGWSB hMB8TomlZ/cwQjS7SGw49p4JwhaWeHV8CzuELSNxenIPC4SdLzFj83sWiN8qJO4e9IIwrSU+ ngH7mFlAU2L9Ln2IYkeJjXO/sENU8EnceCsIcQCfxKRt06HhwyvR0SYEUa0qcXzPJGYIW1ri ScttqFM8JC6/fsM+gVFxFpJXZiF5ZRbC3gWMzKsYxVNLi3PTU4sN81LL9YoTc4tL89L1kvNz NzECU9zpf8c/7WCc++qj3iFGJg7GQ4wSHMxKIryXHF+lCPGmJFZWpRblxxeV5qQWH2KU5mBR EufVtj2ZLCSQnliSmp2aWpBaBJNl4uCUamBqL8jtOv4vWuBVQaGe/g2PK2VbBGbuL66bsf9r tTff/rTdh6buCwgVNz7+zEbsG/OabJEXExd42BcJV5zJ3xwuc2rp0zOphybcnn1Wiik9TTPn YJ7D9o3XdaZ7vCt6lcZ65WzaysLGaVMPvNRexeT7Z1NcSpZc6M7Q/mLRmrVaO+c78aT5ZRYV /K0T1TvxUoBnlZDkl6KZd77cyJ7zfcKBMy8uMnPrlSb41XdX3RE/bNSRFBT7huuNU9Ih7mWh f7529JTWf5MNujv5hPzx24dCri79aOP4W/a9bpRWErt0YclewbzjM1zu7vnMUy3yMrFa4Klk iktp1zHxqr9Xb0rsVeV54JbuxvpH/dS749OUWIozEg21mIuKEwGEBGCT4AMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrHIsWRmVeSWpSXmKPExsVy+t/xe7rOO9+mGPy9KmPxYN42NovD8yss pj58wmbxfct1Jos1e88xWcz7LGsx/8g5Vou+Fw+ZLb5d6WCy2PT4GqvF5V1z2Cw+9x5htJhx fh+TxcRjk5kt1h65y24x98tUZovWvUfYLZ487GNzEPLYOesuu8fiPS+ZPDat6mTzuHNtD5vH 5iX1Hn1bVjF6fN4kF8AepWdTlF9akqqQkV9cYqsUbWhhpGdoaaFnZGKpZ2hsHmtlZKqkb2eT kpqTWZZapG+XoJcx7/ts9oKDkhWrPvxha2C8J9LFyMEhIWAicXB/QRcjJ4eQwFJGiefn40Bs CQFpicNfprBD2MISf651sXUxcgHVNDNJrHvxjw0kwSZgIPHgzTJ2kISIwHJGiav3lrOAOMwC y1kknq/5wAxSJSzgLfFv9hwwm0VAVWLB1ydgY3kFbCW+9p9hhVghL/H81h2wOKeAncT08+1M ECfZSqyZcI4Nol5Q4uTMJywgNjNQffPW2cwTGAVmIUnNQpJawMi0ilEktbQ4Nz232EivODG3 uDQvXS85P3cTIzAitx37uWUH48pXH/UOMTJxMB5ilOBgVhLhveT4KkWINyWxsiq1KD++qDQn tfgQoynQ3ROZpUST84EpIa8k3tDMwNTQxMzSwNTSzFhJnNezoCNRSCA9sSQ1OzW1ILUIpo+J g1OqgSn+QXqz06GDvd0ztbKmnmnh4di0fGLSw1nVAtMDTzGfFy/I/qO/4dTSInvbKCbugw9O Oa6aVy7q4nSqalHG96Dij8zHFaZcMtn5NUHgV6Kc87OypYYhdx82O2x98YRdw2L2b6OPzfts 9bbusTFUmG2hHcn1Xyq5sZhL8cqnE8Is5lEvdwqkN299w25v/rujaivri/je47c5My5O+/ph l86c1yciDBy6pi/befz8o8afjk807t++/22XQ7GBy9GdK37EJMqeeVC7ZdHM6d/8Etv/yZu6 9nntNl8k9UnWP/WCQUe07c2303jYDLh/b+G8HrV5xtaQ/BoJ4dqUDxsyt/J7cjiZ3L+12p9l sZpK+yIlluKMREMt5qLiRAAfFDHfUQMAAA== X-CMS-MailID: 20230829092419eucas1p275687d1c34087e8bad4b3194ad4b8973 X-Msg-Generator: CA X-RootMTR: 20230829092419eucas1p275687d1c34087e8bad4b3194ad4b8973 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20230829092419eucas1p275687d1c34087e8bad4b3194ad4b8973 References: <20230829091853.626011-1-m.majewski2@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org We only now grab the clock where it is actually being used. Additionally, we remove the fine-grained clock management by enabling the clock during initialization. Signed-off-by: Mateusz Majewski --- drivers/thermal/samsung/exynos_tmu.c | 45 ++++++++-------------------- 1 file changed, 12 insertions(+), 33 deletions(-) diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index 5c08212ff8ac..5da44f43715d 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -273,8 +273,6 @@ static int exynos_tmu_initialize(struct platform_device *pdev) } mutex_lock(&data->lock); - if (!IS_ERR(data->clk_sec)) - clk_enable(data->clk_sec); status = readb(data->base + EXYNOS_TMU_REG_STATUS); if (!status) { @@ -303,8 +301,6 @@ static int exynos_tmu_initialize(struct platform_device *pdev) } err: mutex_unlock(&data->lock); - if (!IS_ERR(data->clk_sec)) - clk_disable(data->clk_sec); out: return ret; } @@ -1000,28 +996,21 @@ static int exynos_tmu_probe(struct platform_device *pdev) return PTR_ERR(data->clk); } - data->clk_sec = devm_clk_get(&pdev->dev, "tmu_triminfo_apbif"); - if (IS_ERR(data->clk_sec)) { - if (data->soc == SOC_ARCH_EXYNOS5420_TRIMINFO) { - dev_err(&pdev->dev, "Failed to get triminfo clock\n"); - return PTR_ERR(data->clk_sec); - } - } else { - ret = clk_prepare(data->clk_sec); - if (ret) { - dev_err(&pdev->dev, "Failed to get clock\n"); - return ret; - } - } - switch (data->soc) { case SOC_ARCH_EXYNOS5433: case SOC_ARCH_EXYNOS7: data->sclk = devm_clk_get_enabled(&pdev->dev, "tmu_sclk"); if (IS_ERR(data->sclk)) { dev_err(&pdev->dev, "Failed to get sclk\n"); - ret = PTR_ERR(data->sclk); - goto err_clk_sec; + return PTR_ERR(data->sclk); + } + break; + case SOC_ARCH_EXYNOS5420_TRIMINFO: + data->clk_sec = + devm_clk_get_enabled(&pdev->dev, "tmu_triminfo_apbif"); + if (IS_ERR(data->clk_sec)) { + dev_err(&pdev->dev, "Failed to get triminfo clock\n"); + return PTR_ERR(data->clk_sec); } break; default: @@ -1039,13 +1028,13 @@ static int exynos_tmu_probe(struct platform_device *pdev) if (ret != -EPROBE_DEFER) dev_err(&pdev->dev, "Failed to register sensor: %d\n", ret); - goto err_clk_sec; + return ret; } ret = exynos_tmu_initialize(pdev); if (ret) { dev_err(&pdev->dev, "Failed to initialize TMU\n"); - goto err_clk_sec; + return ret; } ret = devm_request_threaded_irq( @@ -1054,27 +1043,17 @@ static int exynos_tmu_probe(struct platform_device *pdev) dev_name(&pdev->dev), data); if (ret) { dev_err(&pdev->dev, "Failed to request irq: %d\n", data->irq); - goto err_clk_sec; + return ret; } exynos_tmu_control(pdev, true); return 0; - -err_clk_sec: - if (!IS_ERR(data->clk_sec)) - clk_unprepare(data->clk_sec); - return ret; } static int exynos_tmu_remove(struct platform_device *pdev) { - struct exynos_tmu_data *data = platform_get_drvdata(pdev); - exynos_tmu_control(pdev, false); - if (!IS_ERR(data->clk_sec)) - clk_unprepare(data->clk_sec); - return 0; } From patchwork Tue Aug 29 09:18:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mateusz Majewski X-Patchwork-Id: 13368756 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 2A157C83F1C for ; 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Tue, 29 Aug 2023 09:24:21 +0000 (GMT) X-AuditID: cbfec7f4-993ff70000022c38-2e-64edb9458fb1 Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms2.samsung.com (EUCPMTA) with SMTP id 6F.8B.14344.549BDE46; Tue, 29 Aug 2023 10:24:21 +0100 (BST) Received: from AMDC4515.eu.corp.samsungelectronics.net (unknown [106.120.51.28]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20230829092420eusmtip279c0288c8b4887955d720652f40ccf2a~-0FfAyJZY1173411734eusmtip2m; Tue, 29 Aug 2023 09:24:20 +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 08/11] thermal: exynos: stop using the threshold mechanism on Exynos 4210 Date: Tue, 29 Aug 2023 11:18:46 +0200 Message-ID: <20230829091853.626011-9-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+NgFjrLKsWRmVeSWpSXmKPExsWy7djPc7quO9+mGFzdaWLxYN42NovD8yss pj58wmbxfct1Jos1e88xWcz7LGsx/8g5Vou+Fw+ZLb5d6WCy2PT4GqvF5V1z2Cw+9x5htJhx fh+TxcRjk5kt1h65y24x98tUZovWvUfYLZ487GNzEPLYOesuu8fiPS+ZPDat6mTzuHNtD5vH 5iX1Hn1bVjF6fN4kF8AexWWTkpqTWZZapG+XwJXRtXMOc8EzvoqrV5tZGxg38HQxcnJICJhI rNxxk6mLkYtDSGAFo0Tzwj2sEM4XRom/T38wQzifGSXubv3HCtPy6PhpNojEckaJna9+sUM4 rUwSZ5Y9YwGpYhMwkHjwZhlYQkRgMaPE1p2zwLYwC8xlkWhY+ROoioNDWCBaYsreWpAGFgFV icvtnWwgNq+ArcTWqQdZINbJSzy/dYcdxOYUsJOYfr6dCaJGUOLkzCdgNcxANc1bZ4PdKiEw nVOi/9NpZpD5EgIuEqefW0HMEZZ4dXwLO4QtI3F6cg/U/HyJGZvfs0CUV0jcPegFYVpLfDwD NoRZQFNi/S59iGJHia9frzNBVPBJ3HgrCLGfT2LStulQK3klOtqEIKpVJY7vmcQMYUtLPGm5 zQRhe0gsezOLdQKj4iwkn8xC8skshL0LGJlXMYqnlhbnpqcWG+WllusVJ+YWl+al6yXn525i BKa40/+Of9nBuPzVR71DjEwcjIcYJTiYlUR4Lzm+ShHiTUmsrEotyo8vKs1JLT7EKM3BoiTO q217MllIID2xJDU7NbUgtQgmy8TBKdXA1GX7/NT8HjfjKREJR7XmvzVYdmt6WkWWC0fH5/fH +o0eeoS4h+vdzPp4a7br15Nb7ogvePRn05I7V+K8hdmieFMz1qV+z2HnfHS81EqhzdZT/t3f u18OPTLx4vbltjtl/9u/wX9Bz93fJd3SE9ad9auZ8yoyb6eNUwGHpUnOtSmq975a/vYpUeAw 5536oLd4i9YBdvFpzXZu9xpKbrrnzRLlsT3rGKaSWP+rv8r/8GMR9fc/+Kde/3fkxS+tuq1z VEoZvgfwzrmhvlgmfrWtrWfK/d5r0xi8hE4Ia8YtrRS7Z7p97qES5f9iucdVfxczcj691+Ka si//4mSRhE2fnvOs5QjI4tGw8n20VidWiaU4I9FQi7moOBEAiUBw8uADAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrPIsWRmVeSWpSXmKPExsVy+t/xe7quO9+mGBxukrF4MG8bm8Xh+RUW Ux8+YbP4vuU6k8WaveeYLOZ9lrWYf+Qcq0Xfi4fMFt+udDBZbHp8jdXi8q45bBafe48wWsw4 v4/JYuKxycwWa4/cZbeY+2Uqs0Xr3iPsFk8e9rE5CHnsnHWX3WPxnpdMHptWdbJ53Lm2h81j 85J6j74tqxg9Pm+SC2CP0rMpyi8tSVXIyC8usVWKNrQw0jO0tNAzMrHUMzQ2j7UyMlXSt7NJ Sc3JLEst0rdL0Mvo2jmHueAZX8XVq82sDYwbeLoYOTkkBEwkHh0/zQZiCwksZZRYdqcWIi4t cfjLFHYIW1jiz7UuoBouoJpmJonjz9+ygCTYBAwkHrxZxg6SEBFYzihx9d5yFhCHWWA5i8Tz NR+YQaqEBSIlnszdAWazCKhKXG7vBFvHK2ArsXXqQRaIFfISz2/dAVvHKWAnMf18OxPESbYS ayacg6oXlDg58wlYPTNQffPW2cwTGAVmIUnNQpJawMi0ilEktbQ4Nz232EivODG3uDQvXS85 P3cTIzAmtx37uWUH48pXH/UOMTJxMB5ilOBgVhLhveT4KkWINyWxsiq1KD++qDQntfgQoynQ 3ROZpUST84FJIa8k3tDMwNTQxMzSwNTSzFhJnNezoCNRSCA9sSQ1OzW1ILUIpo+Jg1OqgSn1 1ad8jt8/+c03WvKoPJGy6Tf6s5TjvM7VbtGJkjv2X7m3+aT9IluH4yHvWl4VcuY93BX54u26 vM1OG6Vuf5+hduEyj1VIY5FM8/dNWhZLt2RGV6fZdAa9eMR17fVC71yhjculGqdH//q+ec0d PUG9STeOb1wVIKJ/6exnjVkzTx09cyIj7Uj65w3PtTJMohhnZH66w/eO50zuDv1s/km5AuLb 6+5e5F0fG59Tf37u4n/b1E8tWHZC8VuMvP+vlZs/du2s9q+aufWeaGYR9xaGjSxGiyRrFd1j Hkuk2Bb2AWN3o/VP71T+36Hf5melxQUqlTcsvLzWZdWuN2uuddysMZlcxz8/L9/QmXvVg7VK LMUZiYZazEXFiQBOBKtnUgMAAA== X-CMS-MailID: 20230829092421eucas1p1970c3fb42ca622129bf92511893500b1 X-Msg-Generator: CA X-RootMTR: 20230829092421eucas1p1970c3fb42ca622129bf92511893500b1 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20230829092421eucas1p1970c3fb42ca622129bf92511893500b1 References: <20230829091853.626011-1-m.majewski2@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Exynos 4210 supports setting a base threshold value, which is added to all trip points. This might be useful, but is not really necessary in our usecase, so we always set it to 0 to simplify the code a bit. Additionally, this change makes it so that we convert the value to the calibrated one in a slightly different place. This is more correct morally, though it does not make any change when single-point calibration is being used (which is the case currently). Signed-off-by: Mateusz Majewski Reviewed-by: Krzysztof Kozlowski --- drivers/thermal/samsung/exynos_tmu.c | 17 +++-------------- 1 file changed, 3 insertions(+), 14 deletions(-) diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index 5da44f43715d..6c107fe9fd27 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -336,20 +336,7 @@ static void exynos_tmu_control(struct platform_device *pdev, bool on) static void exynos4210_tmu_set_trip_temp(struct exynos_tmu_data *data, int trip_id, u8 temp) { - struct thermal_trip trip; - u8 ref, th_code; - - if (thermal_zone_get_trip(data->tzd, 0, &trip)) - return; - - ref = trip.temperature / MCELSIUS; - - if (trip_id == 0) { - th_code = temp_to_code(data, ref); - writeb(th_code, data->base + EXYNOS4210_TMU_REG_THRESHOLD_TEMP); - } - - temp -= ref; + temp = temp_to_code(data, temp); writeb(temp, data->base + EXYNOS4210_TMU_REG_TRIG_LEVEL0 + trip_id * 4); } @@ -364,6 +351,8 @@ static void exynos4210_tmu_initialize(struct platform_device *pdev) struct exynos_tmu_data *data = platform_get_drvdata(pdev); sanitize_temp_error(data, readl(data->base + EXYNOS_TMU_REG_TRIMINFO)); + + writeb(0, data->base + EXYNOS4210_TMU_REG_THRESHOLD_TEMP); } static void exynos4412_tmu_set_trip_temp(struct exynos_tmu_data *data, From patchwork Tue Aug 29 09:18:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mateusz Majewski X-Patchwork-Id: 13368758 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 9B5F8C83F1F for ; Tue, 29 Aug 2023 09:25:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234271AbjH2JZE (ORCPT ); Tue, 29 Aug 2023 05:25:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48846 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234680AbjH2JYa (ORCPT ); Tue, 29 Aug 2023 05:24:30 -0400 Received: from mailout2.w1.samsung.com (mailout2.w1.samsung.com [210.118.77.12]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6A25D1BB for ; Tue, 29 Aug 2023 02:24:25 -0700 (PDT) Received: from eucas1p2.samsung.com (unknown [182.198.249.207]) by mailout2.w1.samsung.com (KnoxPortal) with ESMTP id 20230829092424euoutp029bbad121b9891892dea19f6adf685468~-0Fimc-el0812808128euoutp02B for ; Tue, 29 Aug 2023 09:24:24 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout2.w1.samsung.com 20230829092424euoutp029bbad121b9891892dea19f6adf685468~-0Fimc-el0812808128euoutp02B DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1693301064; bh=MISFxXLRGqBlhsnV74hyg0jBZORCFgJ+ZNkWVkvzueo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=X1ALU1ZaQlQfJmmPyq/2vYhFT236PybJ2vQkQNRGDvCVc1h7fOBuHqVXoqGA2EDtM 1ZDWd1vMwvbSBiaF8ySM+GbDOyikTQEmjRjURRNiTDfuOx0gDJ1ob3ko4V1z/dDGFJ /zEEfH2g10uTKFjkDdmye4EzNTT8twkBLUcc0AOU= Received: from eusmges1new.samsung.com (unknown [203.254.199.242]) by eucas1p1.samsung.com (KnoxPortal) with ESMTP id 20230829092423eucas1p176bd125264a400fcaf3467cbc8649494~-0FiLmy2y1819818198eucas1p1E; Tue, 29 Aug 2023 09:24:23 +0000 (GMT) Received: from eucas1p1.samsung.com ( [182.198.249.206]) by eusmges1new.samsung.com (EUCPMTA) with SMTP id 04.E8.42423.749BDE46; Tue, 29 Aug 2023 10:24:23 +0100 (BST) Received: from eusmtrp1.samsung.com (unknown [182.198.249.138]) by eucas1p1.samsung.com (KnoxPortal) with ESMTPA id 20230829092423eucas1p1fc13c188d99482b195e115fd19a1391d~-0FhrCmah2075220752eucas1p1o; Tue, 29 Aug 2023 09:24:23 +0000 (GMT) Received: from eusmgms2.samsung.com (unknown [182.198.249.180]) by eusmtrp1.samsung.com (KnoxPortal) with ESMTP id 20230829092423eusmtrp1c33955e9998a3af345772e7d3e831fd7~-0FhqahHc3270032700eusmtrp1l; Tue, 29 Aug 2023 09:24:23 +0000 (GMT) X-AuditID: cbfec7f2-a3bff7000002a5b7-4c-64edb9475ddf Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms2.samsung.com (EUCPMTA) with SMTP id 41.9B.14344.649BDE46; Tue, 29 Aug 2023 10:24:22 +0100 (BST) Received: from AMDC4515.eu.corp.samsungelectronics.net (unknown [106.120.51.28]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20230829092422eusmtip2ef283c90696bc30860c4f4d372111754~-0FgvxfYQ1320013200eusmtip2F; Tue, 29 Aug 2023 09:24:22 +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 09/11] thermal: exynos: split initialization of TMU and the thermal zone Date: Tue, 29 Aug 2023 11:18:47 +0200 Message-ID: <20230829091853.626011-10-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+NgFjrDKsWRmVeSWpSXmKPExsWy7djPc7ruO9+mGBzrU7B4MG8bm8Xh+RUW Ux8+YbP4vuU6k8WaveeYLOZ9lrWYf+Qcq0Xfi4fMFt+udDBZbHp8jdXi8q45bBafe48wWsw4 v4/JYuKxycwWa4/cZbeY+2Uqs0Xr3iPsFk8e9rE5CHnsnHWX3WPxnpdMHptWdbJ53Lm2h81j 85J6j74tqxg9Pm+SC2CP4rJJSc3JLEst0rdL4MpoeHGHveC5fMX5fW0sDYyXJLsYOTgkBEwk Jl/y6WLk4hASWMEosernaRYI5wujxJTGTUwQzmdGiasNM9i6GDnBOl51dbFDJJYzSjx9fowJ JCEk0Mok0bOxCsRmEzCQePBmGViRiMBiRomtO2eBjWIWmMsi0bDyJwtIlbBAlMSvvZ3MIDaL gKrEhtkLGUFsXgE7iSmfFzFCrJOXeH7rDjuIzQkUn36+nQmiRlDi5MwnYHOYgWqat85mBlkg ITCdU6J51zQWiO9cJDZ1eEPMEZZ4dXwLO4QtI3F6cg8LhJ0vMWPze6jyCom7B70gTGuJj2eY QUxmAU2J9bv0IYodJXrXf2CHqOCTuPFWEGI/n8SkbdOZIcK8Eh1tQhDVqhLH90xihrClJZ60 3GaCsD0kNt5czzKBUXEWkk9mIflkFsLeBYzMqxjFU0uLc9NTiw3zUsv1ihNzi0vz0vWS83M3 MQIT3Ol/xz/tYJz76qPeIUYmDsZDjBIczEoivJccX6UI8aYkVlalFuXHF5XmpBYfYpTmYFES 59W2PZksJJCeWJKanZpakFoEk2Xi4JRqYKq4JheSvmKB1GlVCf+f8ZVZ3Z8eRuW8crz9/JDR s/ga5pQFW8SPlRuZmkenPgowEd9xbANf3JaKvQ8mJ7zMD28PeKKxIMuyd9PUv+nXObx2lodd 1d9/2Lqpv3X6na0nVY7fOsnWG7Sf/Zfflvl1rWKf18gzSvbddLm9T8CJw43Fw5dj4zHpKY4t m4ViUrQzGNx5l/zLi6xuKJiupc5k/mf9/bq9F1dFlNW5HDjE+nJziIOc4avD/xfWrTyp2bTi e+6iF+ePc0p5cfk157lUC5VcOqAtavP0m8ufE2wTep8nPDsuVXLmwoTnz1RTtfhjfZTlLuR5 FO59tVEh7lrfkr1X30SnKZ3X+iJp/HufjhJLcUaioRZzUXEiAK36DWXfAwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrPIsWRmVeSWpSXmKPExsVy+t/xe7ruO9+mGJxwt3gwbxubxeH5FRZT Hz5hs/i+5TqTxZq955gs5n2WtZh/5ByrRd+Lh8wW3650MFlsenyN1eLyrjlsFp97jzBazDi/ j8li4rHJzBZrj9xlt5j7ZSqzReveI+wWTx72sTkIeeycdZfdY/Gel0wem1Z1snncubaHzWPz knqPvi2rGD0+b5ILYI/SsynKLy1JVcjILy6xVYo2tDDSM7S00DMysdQzNDaPtTIyVdK3s0lJ zcksSy3St0vQy2h4cYe94Ll8xfl9bSwNjJckuxg5OSQETCRedXWxdzFycQgJLGWU+LvmBRtE Qlri8Jcp7BC2sMSfa11sEEXNTBLth3pZQBJsAgYSD94sA+sWEVjOKHH13nIWEIdZYDmLxPM1 H5hBqoQFIiSuPD0C1sEioCqxYfZCRhCbV8BOYsrnRYwQK+Qlnt+6A7aOEyg+/Xw7E4gtJGAr sWbCOTaIekGJkzOfgM1hBqpv3jqbeQKjwCwkqVlIUgsYmVYxiqSWFuem5xYb6RUn5haX5qXr JefnbmIExuS2Yz+37GBc+eqj3iFGJg7GQ4wSHMxKIryXHF+lCPGmJFZWpRblxxeV5qQWH2I0 Bbp7IrOUaHI+MCnklcQbmhmYGpqYWRqYWpoZK4nzehZ0JAoJpCeWpGanphakFsH0MXFwSjUw bZ3Xorj63rrXB1W+SNmcdjRYsT0sNYn56Iq9085Krv3XZSz+uIThYsejvZViLi8+2ncx31r2 LMluAb/yac4Fs2N2/713Uy9y4fWYELH+5lbj1Q0MJ241JhiU5npsyw6srdKvC/ZoLos8fbfu /gRz6cem0ifMzyrpcXy+ojapNkmur3fL91q2OzeUqspZ1v9xZGh/ONdI7/fVj6raYRd3Fng6 92tf0kn+4unnv7HsRei5tO9N2Zy825cJbanuW+vNrrKFYeGqVTwTBILeCrR9fL0ox2P2u/qN Kn+D11399WJyX20o3/zJi1bdOzXPV5qt8O+urcqP5PVfuM6VVn/C3/JCcL/qypZ6N2bJTfMF lViKMxINtZiLihMBfH7+KlIDAAA= X-CMS-MailID: 20230829092423eucas1p1fc13c188d99482b195e115fd19a1391d X-Msg-Generator: CA X-RootMTR: 20230829092423eucas1p1fc13c188d99482b195e115fd19a1391d X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20230829092423eucas1p1fc13c188d99482b195e115fd19a1391d References: <20230829091853.626011-1-m.majewski2@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org This will be needed in the future, as the thermal zone subsystem might call our callbacks right after devm_thermal_of_zone_register. Currently we just make get_temp return EAGAIN in such case, but this will not be possible with state-modifying callbacks, for instance set_trips. Signed-off-by: Mateusz Majewski --- drivers/thermal/samsung/exynos_tmu.c | 78 ++++++++++++++++------------ 1 file changed, 45 insertions(+), 33 deletions(-) diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index 6c107fe9fd27..aa3de367b3c7 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -250,20 +250,43 @@ static void sanitize_temp_error(struct exynos_tmu_data *data, u32 trim_info) } static int exynos_tmu_initialize(struct platform_device *pdev) +{ + struct exynos_tmu_data *data = platform_get_drvdata(pdev); + unsigned int status; + int ret = 0; + + mutex_lock(&data->lock); + + status = readb(data->base + EXYNOS_TMU_REG_STATUS); + if (!status) { + ret = -EBUSY; + } else { + data->tmu_initialize(pdev); + data->tmu_clear_irqs(data); + } + + mutex_unlock(&data->lock); + + return ret; +} + +static int exynos_thermal_zone_configure(struct platform_device *pdev) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); struct thermal_zone_device *tzd = data->tzd; int num_trips = thermal_zone_get_num_trips(tzd); - unsigned int status; int ret = 0, temp; ret = thermal_zone_get_crit_temp(tzd, &temp); + if (ret && data->soc != SOC_ARCH_EXYNOS5433) { /* FIXME */ dev_err(&pdev->dev, "No CRITICAL trip point defined in device tree!\n"); - goto out; + goto err; } + mutex_lock(&data->lock); + if (num_trips > data->ntrip) { dev_info(&pdev->dev, "More trip points than supported by this TMU.\n"); @@ -272,36 +295,23 @@ static int exynos_tmu_initialize(struct platform_device *pdev) num_trips - data->ntrip); } - mutex_lock(&data->lock); + int i, ntrips = min_t(int, num_trips, data->ntrip); - status = readb(data->base + EXYNOS_TMU_REG_STATUS); - if (!status) { - ret = -EBUSY; - } else { - int i, ntrips = - min_t(int, num_trips, data->ntrip); + /* Write temperature code for rising and falling threshold */ + for (i = 0; i < ntrips; i++) { + struct thermal_trip trip; - data->tmu_initialize(pdev); + ret = thermal_zone_get_trip(tzd, i, &trip); + if (ret) + goto err; - /* Write temperature code for rising and falling threshold */ - for (i = 0; i < ntrips; i++) { - - struct thermal_trip trip; - - ret = thermal_zone_get_trip(tzd, i, &trip); - if (ret) - goto err; - - data->tmu_set_trip_temp(data, i, trip.temperature / MCELSIUS); - data->tmu_set_trip_hyst(data, i, trip.temperature / MCELSIUS, - trip.hysteresis / MCELSIUS); - } - - data->tmu_clear_irqs(data); + data->tmu_set_trip_temp(data, i, trip.temperature / MCELSIUS); + data->tmu_set_trip_hyst(data, i, trip.temperature / MCELSIUS, + trip.hysteresis / MCELSIUS); } -err: + mutex_unlock(&data->lock); -out: +err: return ret; } @@ -1006,10 +1016,12 @@ static int exynos_tmu_probe(struct platform_device *pdev) break; } - /* - * data->tzd must be registered before calling exynos_tmu_initialize(), - * requesting irq and calling exynos_tmu_control(). - */ + ret = exynos_tmu_initialize(pdev); + if (ret) { + dev_err(&pdev->dev, "Failed to initialize TMU\n"); + return ret; + } + data->tzd = devm_thermal_of_zone_register(&pdev->dev, 0, data, &exynos_sensor_ops); if (IS_ERR(data->tzd)) { @@ -1020,9 +1032,9 @@ static int exynos_tmu_probe(struct platform_device *pdev) return ret; } - ret = exynos_tmu_initialize(pdev); + ret = exynos_thermal_zone_configure(pdev); if (ret) { - dev_err(&pdev->dev, "Failed to initialize TMU\n"); + dev_err(&pdev->dev, "Failed to configure the thermal zone\n"); return ret; } From patchwork Tue Aug 29 09:18:48 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mateusz Majewski X-Patchwork-Id: 13368760 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 180AFC83F28 for ; Tue, 29 Aug 2023 09:25:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234731AbjH2JZI (ORCPT ); Tue, 29 Aug 2023 05:25:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45290 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234725AbjH2JYc (ORCPT ); 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Tue, 29 Aug 2023 09:24:23 +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 10/11] thermal: exynos: use set_trips Date: Tue, 29 Aug 2023 11:18:48 +0200 Message-ID: <20230829091853.626011-11-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+NgFjrPKsWRmVeSWpSXmKPExsWy7djP87qeO9+mGNx4yG7xYN42NovD8yss pj58wmbxfct1Jos1e88xWcz7LGsx/8g5Vou+Fw+ZLb5d6WCy2PT4GqvF5V1z2Cw+9x5htJhx fh+TxcRjk5kt1h65y24x98tUZovWvUfYLZ487GNzEPLYOesuu8fiPS+ZPDat6mTzuHNtD5vH 5iX1Hn1bVjF6fN4kF8AexWWTkpqTWZZapG+XwJXx9cZeloJPSxkrPrx4z9rA2NnB2MXIySEh YCKx+8wZMFtIYAWjxPuTSV2MXED2F0aJpU+2s0M4nxkljn/ZDtex8PNaqI7ljBL73tpDFLUy Scw63sUOkmATMJB48GYZWLeIwGJGia07ZzGBOMwCc1kkGlb+ZAGpEhYwlejZvQ9sFIuAqsT8 KfPA4rwCdhKXDkyFWicv8fzWHbCpnEDx6efbmSBqBCVOznwCVs8MVNO8dTYzyAIJgdmcEh9e 9rJDNLtI9H5YwQZhC0u8Or4FKi4jcXpyDwuEnS8xY/N7IJsDyK6QuHvQC8K0lvh4hhnEZBbQ lFi/Sx+i2FFiz4kjzBAVfBI33gpCHMAnMWnbdKgwr0RHmxBEtarE8T2TmCFsaYknLbeZIGwP idefZzNNYFScheSVWUhemYWwdwEj8ypG8dTS4tz01GLjvNRyveLE3OLSvHS95PzcTYzANHf6 3/GvOxhXvPqod4iRiYPxEKMEB7OSCO8lx1cpQrwpiZVVqUX58UWlOanFhxilOViUxHm1bU8m CwmkJ5akZqemFqQWwWSZODilGpi44vXSlX5xdZt6PJOXFWt6sVD1EKOzx9mqY5qRppO2doS2 NR9MZAvvvxAtt+bHRAnuL083XnZQ/ehqs3W2SjGv3RvGlUeLVqmJsCx/IKWpaNLbc1vK63ym 6i+RpsKZpzNVr8U/fjUvrL33jYPBnH7hjG8V6zJeLni7/Gum74anv8vigs5Ybm+OKmpv25y9 7P20c8pXJXt2tLV28T2aqyLwofw7X9Cj6ceDlNTTN95gYFBakPFlmq/VrcyZT4OKVwvd3CLv z7zrqPm63IXSBmq/J9+3miuwTm6V6qdSUdXdfwq2b7nu0SYz1cx0pay5ePGWpRO3+oU9OSHQ l8wTIHbn2+M+CQ3m3nt7w+wvWiixFGckGmoxFxUnAgAC9dcz4gMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrEIsWRmVeSWpSXmKPExsVy+t/xe7oeO9+mGBycIm/xYN42NovD8yss pj58wmbxfct1Jos1e88xWcz7LGsx/8g5Vou+Fw+ZLb5d6WCy2PT4GqvF5V1z2Cw+9x5htJhx fh+TxcRjk5kt1h65y24x98tUZovWvUfYLZ487GNzEPLYOesuu8fiPS+ZPDat6mTzuHNtD5vH 5iX1Hn1bVjF6fN4kF8AepWdTlF9akqqQkV9cYqsUbWhhpGdoaaFnZGKpZ2hsHmtlZKqkb2eT kpqTWZZapG+XoJfx9cZeloJPSxkrPrx4z9rA2NnB2MXIySEhYCKx8PNaIJuLQ0hgKaNE59Ie JoiEtMThL1PYIWxhiT/XutggipqZJE5vec8MkmATMJB48GYZO0hCRGA5o8TVe8tZQBxmgeUs Es/XfACrEhYwlejZvQ9sH4uAqsT8KfNYQGxeATuJSwemQt0hL/H81h2wdZxA8enn28HOEBKw lVgz4RwbRL2gxMmZT8B6mYHqm7fOZp7AKDALSWoWktQCRqZVjCKppcW56bnFhnrFibnFpXnp esn5uZsYgZG57djPzTsY5736qHeIkYmD8RCjBAezkgjvJcdXKUK8KYmVValF+fFFpTmpxYcY TYHunsgsJZqcD0wNeSXxhmYGpoYmZpYGppZmxkrivJ4FHYlCAumJJanZqakFqUUwfUwcnFIN TLs4gw7V/jwhcFU16cXMX1aK+ywjTmzOvDtR72gay8xv7HMt/8hLrNkh36e0eGdJvsDSrKrQ qQLzF7lqSRm0t1kU/V6+4Fmn/8Rul2V39XJinlw4cnr5ObZFTsed+kP9k0oyX66ok5A+oN/W fd2zLT6jsED+9IPlFgW7nnyx+cc6x6yxVObd5Ec3NDNnHJ6oKtHx9+3kToZFfyVfPe0+o+Gy y2zG1Lk5Flv8Lly9J5W9b8er1xafNz4yTFHynXDSb1X1jGwTazvWgvWrfa+empfmFzzhzdSq hTJtn548i5RXEfi/cd63h7d6d0/PbXXyDgg62Ja2v2bbHee61au2KPHbtRxkMrXbnKrYy7bZ vlSJpTgj0VCLuag4EQBji6frVQMAAA== X-CMS-MailID: 20230829092424eucas1p269935c8781c84b4c2a83d652f3370bf9 X-Msg-Generator: CA X-RootMTR: 20230829092424eucas1p269935c8781c84b4c2a83d652f3370bf9 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20230829092424eucas1p269935c8781c84b4c2a83d652f3370bf9 References: <20230829091853.626011-1-m.majewski2@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Currently, each trip point defined in the device tree corresponds to a single hardware interrupt. This commit instead switches to using two hardware interrupts, whose values are set dynamically using the set_trips callback. Additionally, the critical temperature threshold is handled specifically. Setting interrupts in this way also fixes a long-standing lockdep warning, which was caused by calling thermal_zone_get_trips with our lock being held. Do note that this requires TMU initialization to be split into two parts, as done by the parent commit: parts of the initialization call into the thermal_zone_device structure and so must be done after its registration, but the initialization is also responsible for setting up calibration, which must be done before thermal_zone_device registration, which will call set_trips for the first time; if the calibration is not done in time, the interrupt values will be silently wrong! Signed-off-by: Mateusz Majewski --- drivers/thermal/samsung/exynos_tmu.c | 390 +++++++++++++++------------ 1 file changed, 217 insertions(+), 173 deletions(-) diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index aa3de367b3c7..5b35c51fca79 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -159,7 +159,6 @@ enum soc_type { * 0 < reference_voltage <= 31 * @reg_conf: pointer to structure to register with core thermal. * @tzd: pointer to thermal_zone_device structure - * @ntrip: number of supported trip points. * @enabled: current status of TMU device * @tmu_set_trip_temp: SoC specific method to set trip (rising threshold) * @tmu_set_trip_hyst: SoC specific to set hysteresis (falling threshold) @@ -184,13 +183,13 @@ struct exynos_tmu_data { u8 gain; u8 reference_voltage; struct thermal_zone_device *tzd; - unsigned int ntrip; bool enabled; - void (*tmu_set_trip_temp)(struct exynos_tmu_data *data, int trip, - u8 temp); - void (*tmu_set_trip_hyst)(struct exynos_tmu_data *data, int trip, - u8 temp, u8 hyst); + void (*tmu_set_low_temp)(struct exynos_tmu_data *data, u8 temp); + void (*tmu_set_high_temp)(struct exynos_tmu_data *data, u8 temp); + void (*tmu_set_crit_temp)(struct exynos_tmu_data *data, u8 temp); + void (*tmu_disable_low)(struct exynos_tmu_data *data); + void (*tmu_disable_high)(struct exynos_tmu_data *data); void (*tmu_initialize)(struct platform_device *pdev); void (*tmu_control)(struct platform_device *pdev, bool on); int (*tmu_read)(struct exynos_tmu_data *data); @@ -274,43 +273,24 @@ static int exynos_thermal_zone_configure(struct platform_device *pdev) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); struct thermal_zone_device *tzd = data->tzd; - int num_trips = thermal_zone_get_num_trips(tzd); int ret = 0, temp; ret = thermal_zone_get_crit_temp(tzd, &temp); - - if (ret && data->soc != SOC_ARCH_EXYNOS5433) { /* FIXME */ - dev_err(&pdev->dev, - "No CRITICAL trip point defined in device tree!\n"); - goto err; - } - - mutex_lock(&data->lock); - - if (num_trips > data->ntrip) { - dev_info(&pdev->dev, - "More trip points than supported by this TMU.\n"); - dev_info(&pdev->dev, - "%d trip points should be configured in polling mode.\n", - num_trips - data->ntrip); - } - - int i, ntrips = min_t(int, num_trips, data->ntrip); - - /* Write temperature code for rising and falling threshold */ - for (i = 0; i < ntrips; i++) { - struct thermal_trip trip; - - ret = thermal_zone_get_trip(tzd, i, &trip); - if (ret) + if (ret) { + if (data->soc == + SOC_ARCH_EXYNOS5433) { /* FIXME: Remove this and the check below */ + temp = INT_MAX; + ret = 0; + } else { + dev_err(&pdev->dev, + "No CRITICAL trip point defined in device tree!\n"); goto err; - - data->tmu_set_trip_temp(data, i, trip.temperature / MCELSIUS); - data->tmu_set_trip_hyst(data, i, trip.temperature / MCELSIUS, - trip.hysteresis / MCELSIUS); + } } - mutex_unlock(&data->lock); + if (temp < INT_MAX) + data->tmu_set_crit_temp(data, temp / MCELSIUS); + err: return ret; } @@ -343,17 +323,56 @@ static void exynos_tmu_control(struct platform_device *pdev, bool on) mutex_unlock(&data->lock); } -static void exynos4210_tmu_set_trip_temp(struct exynos_tmu_data *data, - int trip_id, u8 temp) +static void exynos_tmu_update_bit(struct exynos_tmu_data *data, int reg_off, + int bit_off, bool enable) { - temp = temp_to_code(data, temp); - writeb(temp, data->base + EXYNOS4210_TMU_REG_TRIG_LEVEL0 + trip_id * 4); + u32 interrupt_en; + + interrupt_en = readl(data->base + reg_off); + if (enable) + interrupt_en |= 1 << bit_off; + else + interrupt_en &= ~(1 << bit_off); + writel(interrupt_en, data->base + reg_off); } -/* failing thresholds are not supported on Exynos4210 */ -static void exynos4210_tmu_set_trip_hyst(struct exynos_tmu_data *data, - int trip, u8 temp, u8 hyst) +static void exynos4210_tmu_set_low_temp(struct exynos_tmu_data *data, u8 temp) { + /* Failing thresholds are not supported on Exynos 4210. + * We use polling instead. + */ +} + +static void exynos4210_tmu_set_high_temp(struct exynos_tmu_data *data, u8 temp) +{ + temp = temp_to_code(data, temp); + writeb(temp, data->base + EXYNOS4210_TMU_REG_TRIG_LEVEL0 + 4); + exynos_tmu_update_bit(data, EXYNOS_TMU_REG_INTEN, + EXYNOS_TMU_INTEN_RISE0_SHIFT + 4, true); +} + +static void exynos4210_tmu_disable_low(struct exynos_tmu_data *data) +{ + /* Again, this is handled by polling. */ +} + +static void exynos4210_tmu_disable_high(struct exynos_tmu_data *data) +{ + exynos_tmu_update_bit(data, EXYNOS_TMU_REG_INTEN, + EXYNOS_TMU_INTEN_RISE0_SHIFT + 4, false); +} + +static void exynos4210_tmu_set_crit_temp(struct exynos_tmu_data *data, u8 temp) +{ + /* Hardware critical temperature handling is not supported on Exynos 4210. + * We still set the critical temperature threshold, but this is only to + * make sure it is handled as soon as possible. It is just a normal interrupt. + */ + + temp = temp_to_code(data, temp); + writeb(temp, data->base + EXYNOS4210_TMU_REG_TRIG_LEVEL0 + 12); + exynos_tmu_update_bit(data, EXYNOS_TMU_REG_INTEN, + EXYNOS_TMU_INTEN_RISE0_SHIFT + 12, true); } static void exynos4210_tmu_initialize(struct platform_device *pdev) @@ -365,33 +384,49 @@ static void exynos4210_tmu_initialize(struct platform_device *pdev) writeb(0, data->base + EXYNOS4210_TMU_REG_THRESHOLD_TEMP); } -static void exynos4412_tmu_set_trip_temp(struct exynos_tmu_data *data, - int trip, u8 temp) -{ - u32 th, con; - - th = readl(data->base + EXYNOS_THD_TEMP_RISE); - th &= ~(0xff << 8 * trip); - th |= temp_to_code(data, temp) << 8 * trip; - writel(th, data->base + EXYNOS_THD_TEMP_RISE); - - if (trip == 3) { - con = readl(data->base + EXYNOS_TMU_REG_CONTROL); - con |= (1 << EXYNOS_TMU_THERM_TRIP_EN_SHIFT); - writel(con, data->base + EXYNOS_TMU_REG_CONTROL); - } -} - -static void exynos4412_tmu_set_trip_hyst(struct exynos_tmu_data *data, - int trip, u8 temp, u8 hyst) +static void exynos4412_tmu_set_low_temp(struct exynos_tmu_data *data, u8 temp) { u32 th; th = readl(data->base + EXYNOS_THD_TEMP_FALL); - th &= ~(0xff << 8 * trip); - if (hyst) - th |= temp_to_code(data, temp - hyst) << 8 * trip; + th &= ~(0xff << 0); + th |= temp_to_code(data, temp) << 0; writel(th, data->base + EXYNOS_THD_TEMP_FALL); + + exynos_tmu_update_bit(data, EXYNOS_TMU_REG_INTEN, + EXYNOS_TMU_INTEN_FALL0_SHIFT, true); +} + +static void exynos4412_tmu_set_high_temp(struct exynos_tmu_data *data, u8 temp) +{ + u32 th; + + th = readl(data->base + EXYNOS_THD_TEMP_RISE); + th &= ~(0xff << 8); + th |= temp_to_code(data, temp) << 8; + writel(th, data->base + EXYNOS_THD_TEMP_RISE); + + exynos_tmu_update_bit(data, EXYNOS_TMU_REG_INTEN, + EXYNOS_TMU_INTEN_RISE0_SHIFT + 4, true); +} + +static void exynos4412_tmu_disable_low(struct exynos_tmu_data *data) +{ + exynos_tmu_update_bit(data, EXYNOS_TMU_REG_INTEN, + EXYNOS_TMU_INTEN_FALL0_SHIFT, false); +} + +static void exynos4412_tmu_set_crit_temp(struct exynos_tmu_data *data, u8 temp) +{ + u32 th; + + th = readl(data->base + EXYNOS_THD_TEMP_RISE); + th &= ~(0xff << 24); + th |= temp_to_code(data, temp) << 24; + writel(th, data->base + EXYNOS_THD_TEMP_RISE); + + exynos_tmu_update_bit(data, EXYNOS_TMU_REG_CONTROL, + EXYNOS_TMU_THERM_TRIP_EN_SHIFT, true); } static void exynos4412_tmu_initialize(struct platform_device *pdev) @@ -421,44 +456,57 @@ static void exynos4412_tmu_initialize(struct platform_device *pdev) sanitize_temp_error(data, trim_info); } -static void exynos5433_tmu_set_trip_temp(struct exynos_tmu_data *data, - int trip, u8 temp) +static void exynos5433_tmu_set_low_temp(struct exynos_tmu_data *data, u8 temp) { - unsigned int reg_off, j; u32 th; - if (trip > 3) { - reg_off = EXYNOS5433_THD_TEMP_RISE7_4; - j = trip - 4; - } else { - reg_off = EXYNOS5433_THD_TEMP_RISE3_0; - j = trip; - } + th = readl(data->base + EXYNOS5433_THD_TEMP_FALL3_0); + th &= ~(0xff << 0); + th |= temp_to_code(data, temp) << 0; + writel(th, data->base + EXYNOS5433_THD_TEMP_FALL3_0); - th = readl(data->base + reg_off); - th &= ~(0xff << j * 8); - th |= (temp_to_code(data, temp) << j * 8); - writel(th, data->base + reg_off); + exynos_tmu_update_bit(data, EXYNOS5433_TMU_REG_INTEN, + EXYNOS_TMU_INTEN_FALL0_SHIFT, true); } -static void exynos5433_tmu_set_trip_hyst(struct exynos_tmu_data *data, - int trip, u8 temp, u8 hyst) +static void exynos5433_tmu_set_high_temp(struct exynos_tmu_data *data, u8 temp) { - unsigned int reg_off, j; u32 th; - if (trip > 3) { - reg_off = EXYNOS5433_THD_TEMP_FALL7_4; - j = trip - 4; - } else { - reg_off = EXYNOS5433_THD_TEMP_FALL3_0; - j = trip; - } + th = readl(data->base + EXYNOS5433_THD_TEMP_RISE3_0); + th &= ~(0xff << 8); + th |= temp_to_code(data, temp) << 8; + writel(th, data->base + EXYNOS5433_THD_TEMP_RISE3_0); - th = readl(data->base + reg_off); - th &= ~(0xff << j * 8); - th |= (temp_to_code(data, temp - hyst) << j * 8); - writel(th, data->base + reg_off); + exynos_tmu_update_bit(data, EXYNOS5433_TMU_REG_INTEN, + EXYNOS7_TMU_INTEN_RISE0_SHIFT + 1, true); +} + +static void exynos5433_tmu_disable_low(struct exynos_tmu_data *data) +{ + exynos_tmu_update_bit(data, EXYNOS5433_TMU_REG_INTEN, + EXYNOS_TMU_INTEN_FALL0_SHIFT, false); +} + +static void exynos5433_tmu_disable_high(struct exynos_tmu_data *data) +{ + exynos_tmu_update_bit(data, EXYNOS5433_TMU_REG_INTEN, + EXYNOS7_TMU_INTEN_RISE0_SHIFT + 1, false); +} + +static void exynos5433_tmu_set_crit_temp(struct exynos_tmu_data *data, u8 temp) +{ + u32 th; + + th = readl(data->base + EXYNOS5433_THD_TEMP_RISE7_4); + th &= ~(0xff << 24); + th |= temp_to_code(data, temp) << 24; + writel(th, data->base + EXYNOS5433_THD_TEMP_RISE7_4); + + exynos_tmu_update_bit(data, EXYNOS_TMU_REG_CONTROL, + EXYNOS_TMU_THERM_TRIP_EN_SHIFT, true); + exynos_tmu_update_bit(data, EXYNOS5433_TMU_REG_INTEN, + EXYNOS7_TMU_INTEN_RISE0_SHIFT + 7, true); } static void exynos5433_tmu_initialize(struct platform_device *pdev) @@ -494,34 +542,47 @@ static void exynos5433_tmu_initialize(struct platform_device *pdev) cal_type ? 2 : 1); } -static void exynos7_tmu_set_trip_temp(struct exynos_tmu_data *data, - int trip, u8 temp) +static void exynos7_tmu_update_temp(struct exynos_tmu_data *data, u8 temp, + int idx, bool rise) { unsigned int reg_off, bit_off; u32 th; + void __iomem *reg; - reg_off = ((7 - trip) / 2) * 4; - bit_off = ((8 - trip) % 2); + reg_off = ((7 - idx) / 2) * 4; + bit_off = ((8 - idx) % 2); - th = readl(data->base + EXYNOS7_THD_TEMP_RISE7_6 + reg_off); + reg = data->base + + (rise ? EXYNOS7_THD_TEMP_RISE7_6 : EXYNOS7_THD_TEMP_FALL7_6) + + reg_off; + th = readl(reg); th &= ~(EXYNOS7_TMU_TEMP_MASK << (16 * bit_off)); th |= temp_to_code(data, temp) << (16 * bit_off); - writel(th, data->base + EXYNOS7_THD_TEMP_RISE7_6 + reg_off); + writel(th, reg); + + exynos_tmu_update_bit(data, EXYNOS5433_TMU_REG_INTEN, + (rise ? EXYNOS7_TMU_INTEN_RISE0_SHIFT : + EXYNOS_TMU_INTEN_FALL0_SHIFT) + + idx, + true); } -static void exynos7_tmu_set_trip_hyst(struct exynos_tmu_data *data, - int trip, u8 temp, u8 hyst) +static void exynos7_tmu_set_low_temp(struct exynos_tmu_data *data, u8 temp) { - unsigned int reg_off, bit_off; - u32 th; + exynos7_tmu_update_temp(data, temp, 0, false); +} - reg_off = ((7 - trip) / 2) * 4; - bit_off = ((8 - trip) % 2); +static void exynos7_tmu_set_high_temp(struct exynos_tmu_data *data, u8 temp) +{ + exynos7_tmu_update_temp(data, temp, 1, true); +} - th = readl(data->base + EXYNOS7_THD_TEMP_FALL7_6 + reg_off); - th &= ~(EXYNOS7_TMU_TEMP_MASK << (16 * bit_off)); - th |= temp_to_code(data, temp - hyst) << (16 * bit_off); - writel(th, data->base + EXYNOS7_THD_TEMP_FALL7_6 + reg_off); +static void exynos7_tmu_set_crit_temp(struct exynos_tmu_data *data, u8 temp) +{ + /* Like Exynos 4210, Exynos 7 does not seem to support critical temperature + * handling in hardware. Again, we still set a separate interrupt for it. + */ + exynos7_tmu_update_temp(data, temp, 7, true); } static void exynos7_tmu_initialize(struct platform_device *pdev) @@ -536,87 +597,44 @@ static void exynos7_tmu_initialize(struct platform_device *pdev) static void exynos4210_tmu_control(struct platform_device *pdev, bool on) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); - struct thermal_zone_device *tz = data->tzd; - struct thermal_trip trip; - unsigned int con, interrupt_en = 0, i; + unsigned int con; con = get_con_reg(data, readl(data->base + EXYNOS_TMU_REG_CONTROL)); - if (on) { - for (i = 0; i < data->ntrip; i++) { - if (thermal_zone_get_trip(tz, i, &trip)) - continue; - - interrupt_en |= - (1 << (EXYNOS_TMU_INTEN_RISE0_SHIFT + i * 4)); - } - - if (data->soc != SOC_ARCH_EXYNOS4210) - interrupt_en |= - interrupt_en << EXYNOS_TMU_INTEN_FALL0_SHIFT; - + if (on) con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT); - } else { + else con &= ~(1 << EXYNOS_TMU_CORE_EN_SHIFT); - } - writel(interrupt_en, data->base + EXYNOS_TMU_REG_INTEN); writel(con, data->base + EXYNOS_TMU_REG_CONTROL); } static void exynos5433_tmu_control(struct platform_device *pdev, bool on) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); - struct thermal_zone_device *tz = data->tzd; - struct thermal_trip trip; - unsigned int con, interrupt_en = 0, pd_det_en, i; + unsigned int con, pd_det_en; con = get_con_reg(data, readl(data->base + EXYNOS_TMU_REG_CONTROL)); - if (on) { - for (i = 0; i < data->ntrip; i++) { - if (thermal_zone_get_trip(tz, i, &trip)) - continue; - - interrupt_en |= - (1 << (EXYNOS7_TMU_INTEN_RISE0_SHIFT + i)); - } - - interrupt_en |= - interrupt_en << EXYNOS_TMU_INTEN_FALL0_SHIFT; - + if (on) con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT); - } else + else con &= ~(1 << EXYNOS_TMU_CORE_EN_SHIFT); pd_det_en = on ? EXYNOS5433_PD_DET_EN : 0; writel(pd_det_en, data->base + EXYNOS5433_TMU_PD_DET_EN); - writel(interrupt_en, data->base + EXYNOS5433_TMU_REG_INTEN); writel(con, data->base + EXYNOS_TMU_REG_CONTROL); } static void exynos7_tmu_control(struct platform_device *pdev, bool on) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); - struct thermal_zone_device *tz = data->tzd; - struct thermal_trip trip; - unsigned int con, interrupt_en = 0, i; + unsigned int con; con = get_con_reg(data, readl(data->base + EXYNOS_TMU_REG_CONTROL)); if (on) { - for (i = 0; i < data->ntrip; i++) { - if (thermal_zone_get_trip(tz, i, &trip)) - continue; - - interrupt_en |= - (1 << (EXYNOS7_TMU_INTEN_RISE0_SHIFT + i)); - } - - interrupt_en |= - interrupt_en << EXYNOS_TMU_INTEN_FALL0_SHIFT; - con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT); con |= (1 << EXYNOS7_PD_DET_EN_SHIFT); } else { @@ -624,7 +642,6 @@ static void exynos7_tmu_control(struct platform_device *pdev, bool on) con &= ~(1 << EXYNOS7_PD_DET_EN_SHIFT); } - writel(interrupt_en, data->base + EXYNOS7_TMU_REG_INTEN); writel(con, data->base + EXYNOS_TMU_REG_CONTROL); } @@ -856,13 +873,15 @@ static int exynos_map_dt_data(struct platform_device *pdev) switch (data->soc) { case SOC_ARCH_EXYNOS4210: - data->tmu_set_trip_temp = exynos4210_tmu_set_trip_temp; - data->tmu_set_trip_hyst = exynos4210_tmu_set_trip_hyst; + data->tmu_set_low_temp = exynos4210_tmu_set_low_temp; + data->tmu_set_high_temp = exynos4210_tmu_set_high_temp; + data->tmu_disable_low = exynos4210_tmu_disable_low; + data->tmu_disable_high = exynos4210_tmu_disable_high; + data->tmu_set_crit_temp = exynos4210_tmu_set_crit_temp; data->tmu_initialize = exynos4210_tmu_initialize; data->tmu_control = exynos4210_tmu_control; data->tmu_read = exynos4210_tmu_read; data->tmu_clear_irqs = exynos4210_tmu_clear_irqs; - data->ntrip = 4; data->gain = 15; data->reference_voltage = 7; data->efuse_value = 55; @@ -875,14 +894,16 @@ static int exynos_map_dt_data(struct platform_device *pdev) case SOC_ARCH_EXYNOS5260: case SOC_ARCH_EXYNOS5420: case SOC_ARCH_EXYNOS5420_TRIMINFO: - data->tmu_set_trip_temp = exynos4412_tmu_set_trip_temp; - data->tmu_set_trip_hyst = exynos4412_tmu_set_trip_hyst; + data->tmu_set_low_temp = exynos4412_tmu_set_low_temp; + data->tmu_set_high_temp = exynos4412_tmu_set_high_temp; + data->tmu_disable_low = exynos4412_tmu_disable_low; + data->tmu_disable_high = exynos4210_tmu_disable_high; + data->tmu_set_crit_temp = exynos4412_tmu_set_crit_temp; data->tmu_initialize = exynos4412_tmu_initialize; data->tmu_control = exynos4210_tmu_control; data->tmu_read = exynos4412_tmu_read; data->tmu_set_emulation = exynos4412_tmu_set_emulation; data->tmu_clear_irqs = exynos4210_tmu_clear_irqs; - data->ntrip = 4; data->gain = 8; data->reference_voltage = 16; data->efuse_value = 55; @@ -894,14 +915,16 @@ static int exynos_map_dt_data(struct platform_device *pdev) data->max_efuse_value = 100; break; case SOC_ARCH_EXYNOS5433: - data->tmu_set_trip_temp = exynos5433_tmu_set_trip_temp; - data->tmu_set_trip_hyst = exynos5433_tmu_set_trip_hyst; + data->tmu_set_low_temp = exynos5433_tmu_set_low_temp; + data->tmu_set_high_temp = exynos5433_tmu_set_high_temp; + data->tmu_disable_low = exynos5433_tmu_disable_low; + data->tmu_disable_high = exynos5433_tmu_disable_high; + data->tmu_set_crit_temp = exynos5433_tmu_set_crit_temp; data->tmu_initialize = exynos5433_tmu_initialize; data->tmu_control = exynos5433_tmu_control; data->tmu_read = exynos4412_tmu_read; data->tmu_set_emulation = exynos4412_tmu_set_emulation; data->tmu_clear_irqs = exynos4210_tmu_clear_irqs; - data->ntrip = 8; data->gain = 8; if (res.start == EXYNOS5433_G3D_BASE) data->reference_voltage = 23; @@ -912,14 +935,16 @@ static int exynos_map_dt_data(struct platform_device *pdev) data->max_efuse_value = 150; break; case SOC_ARCH_EXYNOS7: - data->tmu_set_trip_temp = exynos7_tmu_set_trip_temp; - data->tmu_set_trip_hyst = exynos7_tmu_set_trip_hyst; + data->tmu_set_low_temp = exynos7_tmu_set_low_temp; + data->tmu_set_high_temp = exynos7_tmu_set_high_temp; + data->tmu_disable_low = exynos5433_tmu_disable_low; + data->tmu_disable_high = exynos5433_tmu_disable_high; + data->tmu_set_crit_temp = exynos7_tmu_set_crit_temp; data->tmu_initialize = exynos7_tmu_initialize; data->tmu_control = exynos7_tmu_control; data->tmu_read = exynos7_tmu_read; data->tmu_set_emulation = exynos4412_tmu_set_emulation; data->tmu_clear_irqs = exynos4210_tmu_clear_irqs; - data->ntrip = 8; data->gain = 9; data->reference_voltage = 17; data->efuse_value = 75; @@ -955,9 +980,28 @@ static int exynos_map_dt_data(struct platform_device *pdev) return 0; } +static int exynos_set_trips(struct thermal_zone_device *tz, int low, int high) +{ + struct exynos_tmu_data *data = thermal_zone_device_priv(tz); + + mutex_lock(&data->lock); + if (low > INT_MIN) + data->tmu_set_low_temp(data, low / MCELSIUS); + else + data->tmu_disable_low(data); + if (high < INT_MAX) + data->tmu_set_high_temp(data, high / MCELSIUS); + else + data->tmu_disable_high(data); + mutex_unlock(&data->lock); + + return 0; +} + static const struct thermal_zone_device_ops exynos_sensor_ops = { .get_temp = exynos_get_temp, .set_emul_temp = exynos_tmu_set_emulation, + .set_trips = exynos_set_trips, }; 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Tue, 29 Aug 2023 09:24:25 +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 11/11] ARM: dts: exynos: disable polling in Odroid XU3-related devices Date: Tue, 29 Aug 2023 11:18:49 +0200 Message-ID: <20230829091853.626011-12-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+NgFjrHKsWRmVeSWpSXmKPExsWy7djPc7peO9+mGLS1GVs8mLeNzeLw/AqL qQ+fsFl833KdyWLN3nNMFvM+y1rMP3KO1aLvxUNmi29XOpgsNj2+xmpxedccNovPvUcYLWac 38dkMfHYZGaLtUfuslvM/TKV2aJ17xF2iycP+9gchDx2zrrL7rF4z0smj02rOtk87lzbw+ax eUm9R9+WVYwenzfJBbBHcdmkpOZklqUW6dslcGUs/rGKpWCmcMWrluXsDYw/+LoYOTkkBEwk jh6bxdzFyMUhJLCCUeLr6VssEM4XRok/D99COZ8ZJdYsmsAE03KhdwkrRGI5UNW15ywgCSGB ViaJD3/8QGw2AQOJB2+WsYMUiQgsZpTYunMWE4jDLDCXRaJh5U+wDmGBCIn5F7cyg9gsAqoS n49OBFvBK2An8fnuITaIdfISz2/dYQexOYHi08+3Q9UISpyc+QRsDjNQTfPW2WBfSAhM55SY 8OEQI0Szi8Tq9Y+gbGGJV8e3sEPYMhKnJ/ewQNj5EjM2vweyOYDsCom7B70gTGuJj2eYQUxm AU2J9bv0IYodJS6+fAVVzCdx460gxAF8EpO2TWeGCPNKdLQJQVSrShzfM4kZwpaWeNJyGxqE HhJHGxeyT2BUnIXklVlIXpmFsHcBI/MqRvHU0uLc9NRi47zUcr3ixNzi0rx0veT83E2MwCR3 +t/xrzsYV7z6qHeIkYmD8RCjBAezkgjvJcdXKUK8KYmVValF+fFFpTmpxYcYpTlYlMR5tW1P JgsJpCeWpGanphakFsFkmTg4pRqYOvjfPPo9w3n/ZxOtq9p+m/63OG/gNbddwtLVpHlH6Dm/ ovjmvk95U66xJd9WagvL4uTy5GWQDMh14Ipnj/AvmfE9TLv1xA6Xjfnz1vF9cV7YsW1u4TTv 0z7K/xpNmlYc0TztxtrR4BWsItnfZVtg++SksMN8iXqOJ/5cpQt2KHWz2W5/Xvu1alKXbMLX py/LwzJfaR2ym5Yc5PfqePE7fbd1gb9nTWuNrJqnfOllzZmIiJaTMyevOHL0y2nvrrS7FevC pCNNr/65sjZ5fcbyv5lHwi5NVNWP3KrxQjosJWQC18z7NoddVF6alqd5r/y25O92gdqtqjLf bk5bcfLsEd7qGB6lPzybfI59aDNRYinOSDTUYi4qTgQAAH5OSuEDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrAIsWRmVeSWpSXmKPExsVy+t/xe7peO9+mGDzrZrJ4MG8bm8Xh+RUW Ux8+YbP4vuU6k8WaveeYLOZ9lrWYf+Qcq0Xfi4fMFt+udDBZbHp8jdXi8q45bBafe48wWsw4 v4/JYuKxycwWa4/cZbeY+2Uqs0Xr3iPsFk8e9rE5CHnsnHWX3WPxnpdMHptWdbJ53Lm2h81j 85J6j74tqxg9Pm+SC2CP0rMpyi8tSVXIyC8usVWKNrQw0jO0tNAzMrHUMzQ2j7UyMlXSt7NJ Sc3JLEst0rdL0MtY/GMVS8FM4YpXLcvZGxh/8HUxcnJICJhIXOhdwtrFyMUhJLCUUWLVpT3M EAlpicNfprBD2MISf651sUEUNTNJrNq7HSzBJmAg8eDNMnaQhIjAckaJq/eWs4A4zALLWSSe r/kANkpYIEzi1ZZZLCA2i4CqxOejE5lAbF4BO4nPdw+xQayQl3h+6w7YVE6g+PTz7WA1QgK2 EmsmnGODqBeUODnzCdgcZqD65q2zmScwCsxCkpqFJLWAkWkVo0hqaXFuem6xoV5xYm5xaV66 XnJ+7iZGYFRuO/Zz8w7Gea8+6h1iZOJgPMQowcGsJMJ7yfFVihBvSmJlVWpRfnxRaU5q8SFG U6C7JzJLiSbnA9NCXkm8oZmBqaGJmaWBqaWZsZI4r2dBR6KQQHpiSWp2ampBahFMHxMHp1QD k3Be8HQ7fv9tQp5bn8frJ/2fssXAn3vLpbqLhfJ5i7fZe8hO9b0tMGHtGhNj6Q0STUbahSxr 769WCS/6/Mfe6GR2YdJdy5yb8ZIf181OKvRJn6i7+fOmOhsmnnMc3bPz0926nTW3bNsyr9v1 45lezQd1Ec+dfV7deXh6Vkzvnh0rdG8qO233TtnKpDHT8Av/1YLc71XqtcuXSc8Vv6Tzo/Fm m7/PadaCu798u5etuLfy2Ic/eeHLnM/cKewOly8+kbHi/PfMrCWG++8UFCxaL9rGZS3dzT5X etH8lPzaB4pPwtje9kcUztf58ONcl6VFy+cNvyrtzBkmqv5/s/2Fj37gxm9203myf3AcvKbV rsRSnJFoqMVcVJwIAJuplj5TAwAA X-CMS-MailID: 20230829092426eucas1p222c2a1c2013f4eb9ee739f03761e5236 X-Msg-Generator: CA X-RootMTR: 20230829092426eucas1p222c2a1c2013f4eb9ee739f03761e5236 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20230829092426eucas1p222c2a1c2013f4eb9ee739f03761e5236 References: <20230829091853.626011-1-m.majewski2@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org After having switched to dynamic trip points, we no longer have a hardware limit for trip point count and can support as many as we want without polling. Signed-off-by: Mateusz Majewski --- .../dts/samsung/exynos5422-odroidxu3-common.dtsi | 16 +++++----------- 1 file changed, 5 insertions(+), 11 deletions(-) diff --git a/arch/arm/boot/dts/samsung/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/samsung/exynos5422-odroidxu3-common.dtsi index b4a851aa8881..4a4c55a4beb3 100644 --- a/arch/arm/boot/dts/samsung/exynos5422-odroidxu3-common.dtsi +++ b/arch/arm/boot/dts/samsung/exynos5422-odroidxu3-common.dtsi @@ -55,7 +55,7 @@ fan0: pwm-fan { thermal-zones { cpu0_thermal: cpu0-thermal { thermal-sensors = <&tmu_cpu0>; - polling-delay-passive = <250>; + polling-delay-passive = <0>; polling-delay = <0>; trips { cpu0_alert0: cpu-alert-0 { @@ -78,12 +78,6 @@ cpu0_crit0: cpu-crit-0 { hysteresis = <0>; /* millicelsius */ type = "critical"; }; - /* - * Exynos542x supports only 4 trip-points - * so for these polling mode is required. - * Start polling at temperature level of last - * interrupt-driven trip: cpu0_alert2 - */ cpu0_alert3: cpu-alert-3 { temperature = <70000>; /* millicelsius */ hysteresis = <10000>; /* millicelsius */ @@ -144,7 +138,7 @@ cpu0_cooling_map4: map4 { }; cpu1_thermal: cpu1-thermal { thermal-sensors = <&tmu_cpu1>; - polling-delay-passive = <250>; + polling-delay-passive = <0>; polling-delay = <0>; trips { cpu1_alert0: cpu-alert-0 { @@ -217,7 +211,7 @@ cpu1_cooling_map4: map4 { }; cpu2_thermal: cpu2-thermal { thermal-sensors = <&tmu_cpu2>; - polling-delay-passive = <250>; + polling-delay-passive = <0>; polling-delay = <0>; trips { cpu2_alert0: cpu-alert-0 { @@ -290,7 +284,7 @@ cpu2_cooling_map4: map4 { }; cpu3_thermal: cpu3-thermal { thermal-sensors = <&tmu_cpu3>; - polling-delay-passive = <250>; + polling-delay-passive = <0>; polling-delay = <0>; trips { cpu3_alert0: cpu-alert-0 { @@ -363,7 +357,7 @@ cpu3_cooling_map4: map4 { }; gpu_thermal: gpu-thermal { thermal-sensors = <&tmu_gpu>; - polling-delay-passive = <250>; + polling-delay-passive = <0>; polling-delay = <0>; trips { gpu_alert0: gpu-alert-0 {