From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BBDC9C433E0 for ; Tue, 11 Aug 2020 08:16:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9899B206C3 for ; Tue, 11 Aug 2020 08:16:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728220AbgHKIPy (ORCPT ); Tue, 11 Aug 2020 04:15:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49832 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728145AbgHKIPw (ORCPT ); Tue, 11 Aug 2020 04:15:52 -0400 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 46B2CC061787 for ; Tue, 11 Aug 2020 01:15:52 -0700 (PDT) Received: from dude02.hi.pengutronix.de ([2001:67c:670:100:1d::28] helo=dude02.pengutronix.de.) by metis.ext.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1k5PRi-00063D-Bp; Tue, 11 Aug 2020 10:15:46 +0200 From: Lucas Stach To: Dan Murphy , Sriram Dash , Wolfgang Grandegger , Marc Kleine-Budde Cc: linux-can@vger.kernel.org, netdev@vger.kernel.org, Marek Vasut , kernel@pengutronix.de, patchwork-lst@pengutronix.de Subject: [PATCH] can: m_can_platform: don't call m_can_class_suspend in runtime suspend Date: Tue, 11 Aug 2020 10:15:44 +0200 Message-Id: <20200811081545.19921-1-l.stach@pengutronix.de> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::28 X-SA-Exim-Mail-From: l.stach@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-can@vger.kernel.org Sender: linux-can-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-can@vger.kernel.org 0704c5743694 (can: m_can_platform: remove unnecessary m_can_class_resume() call) removed the m_can_class_resume() call in the runtime resume path to get rid of a infinite recursion, so the runtime resume now only handles the device clocks. Unfortunately it did not remove the complementary m_can_class_suspend() call in the runtime suspend function, so those paths are now unbalanced, which causes the pinctrl state to get stuck on the "sleep" state, which breaks all CAN functionality on SoCs where this state is defined. Remove the m_can_class_suspend() call to fix this. Fixes: 0704c5743694 (can: m_can_platform: remove unnecessary m_can_class_resume() call) Signed-off-by: Lucas Stach --- drivers/net/can/m_can/m_can_platform.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/net/can/m_can/m_can_platform.c b/drivers/net/can/m_can/m_can_platform.c index 38ea5e600fb8..e6d0cb9ee02f 100644 --- a/drivers/net/can/m_can/m_can_platform.c +++ b/drivers/net/can/m_can/m_can_platform.c @@ -144,8 +144,6 @@ static int __maybe_unused m_can_runtime_suspend(struct device *dev) struct net_device *ndev = dev_get_drvdata(dev); struct m_can_classdev *mcan_class = netdev_priv(ndev); - m_can_class_suspend(dev); - clk_disable_unprepare(mcan_class->cclk); clk_disable_unprepare(mcan_class->hclk); -- 2.20.1