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: 12929029 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 4BF27C433EF for ; Tue, 26 Jul 2022 08:33:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238054AbiGZIdh (ORCPT ); Tue, 26 Jul 2022 04:33:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49142 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231345AbiGZIdg (ORCPT ); Tue, 26 Jul 2022 04:33:36 -0400 Received: from comms.puri.sm (comms.puri.sm [159.203.221.185]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9ABC72F3A8; Tue, 26 Jul 2022 01:33:35 -0700 (PDT) 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 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.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(-)