From patchwork Fri Jan 11 13:31:27 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 10758041 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A6EA41390 for ; Fri, 11 Jan 2019 13:31:50 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 95DB829A4C for ; Fri, 11 Jan 2019 13:31:50 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9435D29BFF; Fri, 11 Jan 2019 13:31:50 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 42B8D29A4C for ; Fri, 11 Jan 2019 13:31:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732666AbfAKNbj (ORCPT ); Fri, 11 Jan 2019 08:31:39 -0500 Received: from mail.bootlin.com ([62.4.15.54]:51149 "EHLO mail.bootlin.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732654AbfAKNbj (ORCPT ); Fri, 11 Jan 2019 08:31:39 -0500 Received: by mail.bootlin.com (Postfix, from userid 110) id A85D720AA4; Fri, 11 Jan 2019 14:31:36 +0100 (CET) Received: from localhost.localdomain (aaubervilliers-681-1-45-241.w90-88.abo.wanadoo.fr [90.88.163.241]) by mail.bootlin.com (Postfix) with ESMTPSA id 4736420A2D; Fri, 11 Jan 2019 14:31:36 +0100 (CET) From: Miquel Raynal To: Kishon Vijay Abraham I , Gregory Clement , Jason Cooper , Andrew Lunn , Sebastian Hesselbarth , Rob Herring , Mark Rutland , Greg Kroah-Hartman , Mathias Nyman , Alan Stern Cc: , , linux-usb@vger.kernel.org, Thomas Petazzoni , Antoine Tenart , Maxime Chevallier , Nadav Haklai , Miquel Raynal Subject: [PATCH v2 04/10] usb: ehci-orion: add S2RAM support Date: Fri, 11 Jan 2019 14:31:27 +0100 Message-Id: <20190111133133.24803-5-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190111133133.24803-1-miquel.raynal@bootlin.com> References: <20190111133133.24803-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add suspend/resume callbacks to reset the host controller properly during S2RAM operation. Signed-off-by: Miquel Raynal --- drivers/usb/host/ehci-orion.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c index 3109f082949e..dab22aa57c0b 100644 --- a/drivers/usb/host/ehci-orion.c +++ b/drivers/usb/host/ehci-orion.c @@ -182,6 +182,30 @@ static int ehci_orion_drv_reset(struct usb_hcd *hcd) return ret; } +static int __maybe_unused ehci_orion_drv_suspend(struct device *dev) +{ + struct usb_hcd *hcd = dev_get_drvdata(dev); + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + + ehci_prepare_ports_for_controller_suspend(ehci, + device_may_wakeup(dev)); + + return ehci_suspend(hcd, false); +} + +static int __maybe_unused ehci_orion_drv_resume(struct device *dev) +{ + struct usb_hcd *hcd = dev_get_drvdata(dev); + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + + ehci_prepare_ports_for_controller_resume(ehci); + + return ehci_resume(hcd, false); +} + +static SIMPLE_DEV_PM_OPS(ehci_orion_pm_ops, ehci_orion_drv_suspend, + ehci_orion_drv_resume); + static const struct ehci_driver_overrides orion_overrides __initconst = { .extra_priv_size = sizeof(struct orion_ehci_hcd), .reset = ehci_orion_drv_reset, @@ -334,6 +358,7 @@ static struct platform_driver ehci_orion_driver = { .driver = { .name = "orion-ehci", .of_match_table = ehci_orion_dt_ids, + .pm = &ehci_orion_pm_ops, }, };