From patchwork Tue Jul 26 08:32:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Kepplinger X-Patchwork-Id: 12929024 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1A7BCC433EF for ; Tue, 26 Jul 2022 08:34:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=6xP4w/9HO98rJEroQnKavL6cvXRbyaQZ1lBjimv4Nqw=; b=2yFOjq5tbVp4eE sG+HpPbE1Vvr7cedlpEQyulvijxeiVNtgapmf+wUfHKLWxrASnBf9KHIy66dnBPmbQLMRtpZ0J95k SHjA4ewlJF3f11F5z7/kVzHyRbNuBywKo7dJlk/MfKXlJDZUMUaltbREsQnEV0wa28rWpesfZTae0 D7jWKMM6XYakSdOuA3DKIDOqwzkYG0Zupt0rcpFRLJ7SkOrIcOauqjYBYv91l9BUzwVQTvg24789E Lk3D33Syyo9hE7g1KKwhjpOpNzfmj1s1/0mv9jzVYWW/KpfSXtxT0mcesqqoSTE06jFIxhy8s5Ahu vFVGd2pmsAM5QHW8g18w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oGG0G-00AGmc-HS; Tue, 26 Jul 2022 08:33:20 +0000 Received: from comms.puri.sm ([159.203.221.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oGG0A-00AGeU-NO for linux-arm-kernel@lists.infradead.org; Tue, 26 Jul 2022 08:33:16 +0000 Received: from localhost (localhost [127.0.0.1]) by comms.puri.sm (Postfix) with ESMTP id 6CF94DFD95; Tue, 26 Jul 2022 01:33:05 -0700 (PDT) Received: from comms.puri.sm ([127.0.0.1]) by localhost (comms.puri.sm [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Q3g532GNHPNk; Tue, 26 Jul 2022 01:33:04 -0700 (PDT) From: Martin Kepplinger DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=puri.sm; s=comms; t=1658824384; bh=0CIJU3zSyImAICa4IB+pz0lnhOh+ryj8sbHTB94JLEM=; h=From:To:Cc:Subject:Date:From; b=F4aSqK5kFT4K11jxNfoPfVmCANO6UV0bER52kMqexn3endu9STsOymIupg7mSDZ1t AlaXX8+mbXZHI8nurHj+OUMTmZ5+jomwnhuUp6vGkEAYFhkLzNJos0z+xA4rQJd90o ONH+cciT1YerEGsjEZABqpjr3zj0WosnQfMWMNzgK7y2JeHVttJ9vfVZzA/lEPcqfw ve+pJUiotnLsJcExPuBngpQS87ffYYFDSR/1vfVrln1uUebG6PBKQSfH8N8Tmm2VK8 YnSvu79p2I43Fp0QoP9eVFWhcoFgmf7BCfYVqStIC0rdbkX+rOzPIfIhGugF1Te/Da MKrKg4X4WX1IA== To: rafael@kernel.org, khilman@kernel.org, ulf.hansson@linaro.org, robh@kernel.org, krzysztof.kozlowski@linaro.org, shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com, pavel@ucw.cz Cc: kernel@puri.sm, linux-imx@nxp.com, broonie@kernel.org, l.stach@pengutronix.de, aford173@gmail.com, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Martin Kepplinger Subject: [PATCH v6 0/2] power: domain: handle power supplies that need interrupts Date: Tue, 26 Jul 2022 10:32:55 +0200 Message-Id: <20220726083257.1730630-1-martin.kepplinger@puri.sm> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220726_013314_879621_9470658B X-CRM114-Status: GOOD ( 12.19 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org hi Ulf, Lucas and all interested, This makes available a new genpd flag GENPD_FLAG_IRQ_ON in a relatively generic way: genpd providers can set it when irqs are needed to manage power on/off. Since the main goal here has been to fix systemd suspend/resume, adjusting these callbacks is all that's being done when this flag gets set. And since I'm working on imx8mq, the 2nd patch makes gpcv2 set this new flag when a power domain has a power-supply described in DT. For i.MX8M* platforms, this should be ok. For other platforms this might be useful too but needs to be tested. revision history ---------------- v6: (thank you Ulf and Lucas) * drop the cleanup patch to use BIT() * use of_property_read_bool() to find the power-supply * clean up the callback assignment * remove the wrong error printing (flag-check can be added later to *drivers* that have noirq callbacks) v5: (thank you Lucas) * simplify gpcv2 code: just set GENPD_FLAG_IRQ_ON when a power-supply is present https://lore.kernel.org/linux-arm-kernel/20220721043608.1527686-1-martin.kepplinger@puri.sm/ v4: (thank you Ulf and Lucas) * split up genpd core and gpcv2 changes * set callbacks inside of pm_genpd_init() * make flag name and description a bit more generic * print an error in __genpd_dev_pm_attach() if there a "mismatch" https://lore.kernel.org/linux-arm-kernel/20220720043444.1289952-1-martin.kepplinger@puri.sm/T/#t v3: (thank you Ulf) * move DT parsing to gpcv2 and create a genpd flag that gets set https://lore.kernel.org/linux-arm-kernel/20220718210302.674897-1-martin.kepplinger@puri.sm/ v2: (thank you Krzysztof) * rewrite: find possible regulators' interrupts property in parents instead of inventing a new property. https://lore.kernel.org/linux-arm-kernel/20220712121832.3659769-1-martin.kepplinger@puri.sm/ v1: (initial idea) https://lore.kernel.org/linux-arm-kernel/20220711094549.3445566-1-martin.kepplinger@puri.sm/T/#t Martin Kepplinger (2): power: domain: handle genpd correctly when needing interrupts soc: imx: gpcv2: fix suspend/resume by setting GENPD_FLAG_IRQ_ON drivers/base/power/domain.c | 13 +++++++++++-- drivers/soc/imx/gpcv2.c | 3 +++ include/linux/pm_domain.h | 5 +++++ 3 files changed, 19 insertions(+), 2 deletions(-)