From: Peter Chen <peter.chen@nxp.com>
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 <peter.chen@nxp.com>
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 [thread overview]
Message-ID: <20200707074941.28078-6-peter.chen@nxp.com> (raw)
In-Reply-To: <20200707074941.28078-1-peter.chen@nxp.com>
Some platforms (eg cdns3) may have special sequences between
xhci_bus_suspend and xhci_suspend, add .suspend_quick for it.
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
---
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
next prev parent reply other threads:[~2020-07-07 7:50 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-07 7:49 [PATCH v5 0/9] usb: some PM changes for cdns3 and xhci-plat Peter Chen
2020-07-07 7:49 ` [PATCH v5 1/9] usb: cdns3: introduce set_phy_power_on{off} APIs Peter Chen
2020-08-13 12:09 ` Pawel Laszczak
2020-08-14 5:29 ` Peter Chen
2020-07-07 7:49 ` [PATCH v5 2/9] usb: cdns3: add runtime PM support Peter Chen
2020-08-13 13:10 ` Pawel Laszczak
2020-07-07 7:49 ` [PATCH v5 3/9] usb: cdns3: imx: add glue layer runtime pm implementation Peter Chen
2020-08-13 13:20 ` Pawel Laszczak
2020-07-07 7:49 ` [PATCH v5 4/9] usb: host: xhci-plat: add platform data support Peter Chen
2020-07-07 7:49 ` Peter Chen [this message]
2020-07-07 7:49 ` [PATCH v5 6/9] usb: host: xhci-plat: delete the unnecessary code Peter Chen
2020-07-07 7:49 ` [PATCH v5 7/9] usb: host: xhci-plat: add priv quirk for skip PHY initialization Peter Chen
2020-07-24 6:24 ` Peter Chen
2020-07-07 7:49 ` [PATCH v5 8/9] usb: cdns3: host: add .suspend_quirk for xhci-plat.c Peter Chen
2020-08-17 4:39 ` Pawel Laszczak
2020-07-07 7:49 ` [PATCH v5 9/9] usb: cdns3: host: add xhci_plat_priv quirk XHCI_SKIP_PHY_INIT Peter Chen
2020-08-17 4:37 ` Pawel Laszczak
2020-07-17 6:13 ` [PATCH v5 0/9] usb: some PM changes for cdns3 and xhci-plat Peter Chen
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