From: Krishna Kurapati <quic_kriskura@quicinc.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Rob Herring <robh+dt@kernel.org>, Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
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: <devicetree@vger.kernel.org>, <linux-arm-msm@vger.kernel.org>,
<linux-usb@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-pm@vger.kernel.org>, <quic_pkondeti@quicinc.com>,
<quic_ppratap@quicinc.com>, <quic_vpulyala@quicinc.com>,
Krishna Kurapati <quic_kriskura@quicinc.com>
Subject: [v15 2/6] usb: host: xhci-plat: Enable wakeup based on children wakeup status
Date: Thu, 5 May 2022 14:26:09 +0530 [thread overview]
Message-ID: <1651740973-7944-3-git-send-email-quic_kriskura@quicinc.com> (raw)
In-Reply-To: <1651740973-7944-1-git-send-email-quic_kriskura@quicinc.com>
device_wakeup_path() tells if any of the children devices needs
wakeup. Use this hint to enable/disable wakeup of our device. This
helps the parent device of xhci-plat (like sysdev) to retrieve
the wakeup setting via device_wakeup_path().
Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com>
---
drivers/usb/host/xhci-plat.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 649ffd8..ad585fa 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -415,6 +415,14 @@ static int __maybe_unused xhci_plat_suspend(struct device *dev)
if (pm_runtime_suspended(dev))
pm_runtime_resume(dev);
+ if (device_wakeup_path(dev)) {
+ if (!device_may_wakeup(dev))
+ device_wakeup_enable(dev);
+ } else {
+ if (device_may_wakeup(dev))
+ device_wakeup_disable(dev);
+ }
+
ret = xhci_priv_suspend_quirk(hcd);
if (ret)
return ret;
--
2.7.4
next prev parent reply other threads:[~2022-05-05 8:56 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-05 8:56 [v15 0/6] USB DWC3 host wake up support from system suspend Krishna Kurapati
2022-05-05 8:56 ` [v15 1/6] dt-bindings: usb: dwc3: Add wakeup-source property support Krishna Kurapati
2022-05-05 8:56 ` Krishna Kurapati [this message]
2022-05-06 15:36 ` [v15 2/6] usb: host: xhci-plat: Enable wakeup based on children wakeup status Matthias Kaehlcke
2022-05-09 3:38 ` Pavan Kondeti
2022-05-11 1:51 ` Pavan Kondeti
2022-05-11 15:54 ` Matthias Kaehlcke
2022-05-11 23:54 ` Pavan Kondeti
2022-05-05 8:56 ` [v15 3/6] usb: dwc3: core: Host wake up support from system suspend Krishna Kurapati
2022-05-05 22:48 ` Matthias Kaehlcke
2022-05-06 5:11 ` Krishna Kurapati PSSNV
2022-05-06 5:14 ` Pavan Kondeti
2022-05-06 15:51 ` Matthias Kaehlcke
2022-05-06 16:51 ` Matthias Kaehlcke
2022-05-05 8:56 ` [v15 4/6] usb: dwc3: qcom: Add helper functions to enable,disable wake irqs Krishna Kurapati
2022-05-05 8:56 ` [v15 5/6] usb: dwc3: qcom: Configure wakeup interrupts during suspend Krishna Kurapati
2022-05-05 8:56 ` [v15 6/6] usb: dwc3: qcom: Keep power domain on to retain controller status Krishna Kurapati
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