From: Sandeep Maheswaram <quic_c_sanm@quicinc.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Felipe Balbi <balbi@kernel.org>,
Stephen Boyd <swboyd@chromium.org>,
Doug Anderson <dianders@chromium.org>,
Matthias Kaehlcke <mka@chromium.org>,
Mathias Nyman <mathias.nyman@intel.com>
Cc: <linux-arm-msm@vger.kernel.org>, <linux-usb@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <quic_pkondeti@quicinc.com>,
<quic_ppratap@quicinc.com>,
Sandeep Maheswaram <quic_c_sanm@quicinc.com>
Subject: [PATCH v10 1/6] usb: host: xhci: plat: Add suspend quirk for dwc3 controller
Date: Mon, 17 Jan 2022 11:14:03 +0530 [thread overview]
Message-ID: <1642398248-21753-2-git-send-email-quic_c_sanm@quicinc.com> (raw)
In-Reply-To: <1642398248-21753-1-git-send-email-quic_c_sanm@quicinc.com>
During suspend check if any wakeup capable devices are connected to the
controller (directly or through hubs), and set the wakeup enable property
for xhci plat device.
Signed-off-by: Sandeep Maheswaram <quic_c_sanm@quicinc.com>
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
Change device_set_wakeup_capable to device_set_wakeup_enable as
wakeup capable false was deleting the sysfs property.
drivers/usb/host/xhci-plat.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index c1edcc9..1c8fadb 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -431,6 +431,14 @@ static int xhci_plat_remove(struct platform_device *dev)
return 0;
}
+static void xhci_dwc3_suspend_quirk(struct usb_hcd *hcd, struct device *dev)
+{
+ if (usb_wakeup_enabled_descendants(hcd->self.root_hub))
+ device_set_wakeup_enable(dev, true);
+ else
+ device_set_wakeup_enable(dev, false);
+}
+
static int __maybe_unused xhci_plat_suspend(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
@@ -440,6 +448,10 @@ static int __maybe_unused xhci_plat_suspend(struct device *dev)
ret = xhci_priv_suspend_quirk(hcd);
if (ret)
return ret;
+
+ if (of_device_is_compatible(dev->parent->of_node, "snps,dwc3"))
+ xhci_dwc3_suspend_quirk(hcd, dev);
+
/*
* xhci_suspend() needs `do_wakeup` to know whether host is allowed
* to do wakeup during suspend.
--
2.7.4
next prev parent reply other threads:[~2022-01-17 5:46 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-17 5:44 [PATCH v10 0/6] USB DWC3 host wake up support from system suspend Sandeep Maheswaram
2022-01-17 5:44 ` Sandeep Maheswaram [this message]
2022-01-26 12:47 ` [PATCH v10 1/6] usb: host: xhci: plat: Add suspend quirk for dwc3 controller Greg Kroah-Hartman
2022-01-17 5:44 ` [PATCH v10 2/6] usb: dwc3: core: Host wake up support from system suspend Sandeep Maheswaram
2022-01-18 8:57 ` Jun Li
2022-01-24 5:27 ` Sandeep Maheswaram
2022-01-17 5:44 ` [PATCH v10 3/6] usb: dwc3: qcom: Add helper functions to enable,disable wake irqs Sandeep Maheswaram
2022-01-17 5:44 ` [PATCH v10 4/6] usb: dwc3: qcom: Change the IRQ flag for DP/DM hs phy irq Sandeep Maheswaram
2022-01-17 5:44 ` [PATCH v10 5/6] usb: dwc3: qcom: Keep power domain on to retain controller status Sandeep Maheswaram
2022-01-17 5:44 ` [PATCH v10 6/6] usb: dwc3: qcom: Enable the interrupts during probe Sandeep Maheswaram
2022-01-18 6:12 ` Steev Klimaszewski
2022-01-18 6:30 ` Sandeep Maheswaram
2022-01-18 8:46 ` Steev Klimaszewski
2022-01-18 9:52 ` Pavan Kondeti
2022-01-20 5:22 ` Sandeep Maheswaram
2022-01-25 9:17 ` Sandeep Maheswaram
2022-01-28 8:36 ` Steev Klimaszewski
2022-01-28 9:00 ` Pavan Kondeti
2022-02-15 9:40 ` Sandeep Maheswaram
2022-02-16 3:22 ` Steev Klimaszewski
2022-02-16 6:27 ` Sandeep Maheswaram
2022-02-16 9:51 ` Steev Klimaszewski
[not found] ` <cad907b6-4434-45e7-bd70-b93c0035d90c@quicinc.com>
2022-02-17 22:16 ` Steev Klimaszewski
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=1642398248-21753-2-git-send-email-quic_c_sanm@quicinc.com \
--to=quic_c_sanm@quicinc.com \
--cc=balbi@kernel.org \
--cc=dianders@chromium.org \
--cc=gregkh@linuxfoundation.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=mathias.nyman@intel.com \
--cc=mka@chromium.org \
--cc=quic_pkondeti@quicinc.com \
--cc=quic_ppratap@quicinc.com \
--cc=swboyd@chromium.org \
/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).