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Tue, 7 Jul 2020 07:50:00 +0000 From: Peter Chen To: balbi@kernel.org, mathias.nyman@intel.com, gregkh@linuxfoundation.org Cc: linux-usb@vger.kernel.org, linux-imx@nxp.com, pawell@cadence.com, rogerq@ti.com, jun.li@nxp.com, Peter Chen Subject: [PATCH v5 5/9] usb: host: xhci-plat: add .suspend_quirk for struct xhci_plat_priv Date: Tue, 7 Jul 2020 15:49:37 +0800 Message-Id: <20200707074941.28078-6-peter.chen@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200707074941.28078-1-peter.chen@nxp.com> References: <20200707074941.28078-1-peter.chen@nxp.com> Content-Type: text/plain X-ClientProxiedBy: SG2PR02CA0022.apcprd02.prod.outlook.com (2603:1096:3:17::34) To AM7PR04MB7157.eurprd04.prod.outlook.com (2603:10a6:20b:118::20) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from b29397-desktop.ap.freescale.net (119.31.174.67) by SG2PR02CA0022.apcprd02.prod.outlook.com (2603:1096:3:17::34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3153.22 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 0243efb0-9186-4e81-21d0-08d8224a59d1 X-MS-Exchange-CrossTenant-AuthSource: AM7PR04MB7157.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Jul 2020 07:50:00.4838 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: fQRrw0wKOn99tUM6K4jwHYkgBgspf1mfYRgWq+UxAeJ/fPlLqpaerWxXqe6oqYwPz4vfK2L00KfXk/rRFRA1Qw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR04MB5608 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Some platforms (eg cdns3) may have special sequences between xhci_bus_suspend and xhci_suspend, add .suspend_quick for it. Acked-by: Mathias Nyman Signed-off-by: Peter Chen --- drivers/usb/host/xhci-plat.c | 19 +++++++++++++++++++ drivers/usb/host/xhci-plat.h | 1 + 2 files changed, 20 insertions(+) diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 38bea2b6a17d..51e20464fe0a 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -54,6 +54,16 @@ static int xhci_priv_init_quirk(struct usb_hcd *hcd) return priv->init_quirk(hcd); } +static int xhci_priv_suspend_quirk(struct usb_hcd *hcd) +{ + struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd); + + if (!priv->suspend_quirk) + return 0; + + return priv->suspend_quirk(hcd); +} + static int xhci_priv_resume_quirk(struct usb_hcd *hcd) { struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd); @@ -401,7 +411,11 @@ static int __maybe_unused xhci_plat_suspend(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); struct xhci_hcd *xhci = hcd_to_xhci(hcd); + int ret; + ret = xhci_priv_suspend_quirk(hcd); + if (ret) + return ret; /* * xhci_suspend() needs `do_wakeup` to know whether host is allowed * to do wakeup during suspend. Since xhci_plat_suspend is currently @@ -438,6 +452,11 @@ static int __maybe_unused xhci_plat_runtime_suspend(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); struct xhci_hcd *xhci = hcd_to_xhci(hcd); + int ret; + + ret = xhci_priv_suspend_quirk(hcd); + if (ret) + return ret; return xhci_suspend(xhci, true); } diff --git a/drivers/usb/host/xhci-plat.h b/drivers/usb/host/xhci-plat.h index b49f6447bd3a..1fb149d1fbce 100644 --- a/drivers/usb/host/xhci-plat.h +++ b/drivers/usb/host/xhci-plat.h @@ -15,6 +15,7 @@ struct xhci_plat_priv { unsigned long long quirks; void (*plat_start)(struct usb_hcd *); int (*init_quirk)(struct usb_hcd *); + int (*suspend_quirk)(struct usb_hcd *); int (*resume_quirk)(struct usb_hcd *); }; -- 2.17.1