From: Peter Chen <peter.chen@nxp.com>
To: balbi@kernel.org, mathias.nyman@intel.com
Cc: linux-usb@vger.kernel.org, linux-imx@nxp.com, pawell@cadence.com,
rogerq@ti.com, gregkh@linuxfoundation.org, jun.li@nxp.com,
Peter Chen <peter.chen@nxp.com>
Subject: [PATCH 4/8] usb: host: xhci-plat: add .suspend_quirk for struct xhci_plat_priv
Date: Fri, 22 May 2020 18:32:52 +0800 [thread overview]
Message-ID: <20200522103256.16322-5-peter.chen@nxp.com> (raw)
In-Reply-To: <20200522103256.16322-1-peter.chen@nxp.com>
Some platforms (eg cdns3) may have special sequences between
xhci_bus_suspend and xhci_suspend, add .suspend_quick for it.
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 e00efd84ea1a..ca02e7f36238 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);
@@ -396,7 +406,11 @@ 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
@@ -425,6 +439,11 @@ 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 5681723fc9cd..9338a4f946d0 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:[~2020-05-22 10:33 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-22 10:32 [PATCH 0/8] usb: cdns3: add runtime PM support Peter Chen
2020-05-22 10:32 ` [PATCH 1/8] " Peter Chen
2020-08-31 10:01 ` Felipe Balbi
2020-08-31 10:59 ` Peter Chen
2020-08-31 11:27 ` Felipe Balbi
2020-05-22 10:32 ` [PATCH 2/8] usb: cdns3: imx: add glue layer runtime pm implementation Peter Chen
2020-08-31 10:04 ` Felipe Balbi
2020-05-22 10:32 ` [PATCH 3/8] usb: host: xhci-plat: add platform data support Peter Chen
2020-05-22 10:32 ` Peter Chen [this message]
2020-08-31 10:06 ` [PATCH 4/8] usb: host: xhci-plat: add .suspend_quirk for struct xhci_plat_priv Felipe Balbi
2020-08-31 11:00 ` Peter Chen
2020-05-22 10:32 ` [PATCH 5/8] usb: host: xhci-plat: delete the unnecessary code Peter Chen
2020-05-22 10:32 ` [PATCH 6/8] usb: host: xhci-plat: add priv flag for skip_phy_initialization Peter Chen
2020-05-22 10:32 ` [PATCH 7/8] usb: cdns3: host: add .suspend_quirk for xhci-plat.c Peter Chen
2020-05-22 10:32 ` [PATCH 8/8] usb: cdns3: host: add xhci_plat_priv's flag skip_phy_initialization Peter Chen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200522103256.16322-5-peter.chen@nxp.com \
--to=peter.chen@nxp.com \
--cc=balbi@kernel.org \
--cc=gregkh@linuxfoundation.org \
--cc=jun.li@nxp.com \
--cc=linux-imx@nxp.com \
--cc=linux-usb@vger.kernel.org \
--cc=mathias.nyman@intel.com \
--cc=pawell@cadence.com \
--cc=rogerq@ti.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).