linux-kernel - [PATCH v11 4/5] usb: dwc3: qcom: Configure wakeup interrupts during suspend

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Date:   Tue, 22 Mar 2022 12:37:55 +0530
From:   Sandeep Maheswaram <quic_c_sanm@...cinc.com>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Felipe Balbi <balbi@...nel.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Doug Anderson <dianders@...omium.org>,
        "Matthias Kaehlcke" <mka@...omium.org>,
        Mathias Nyman <mathias.nyman@...el.com>
CC:     <linux-arm-msm@...r.kernel.org>, <linux-usb@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <quic_pkondeti@...cinc.com>,
        <quic_ppratap@...cinc.com>,
        Sandeep Maheswaram <quic_c_sanm@...cinc.com>
Subject: [PATCH v11 4/5] usb: dwc3: qcom: Configure wakeup interrupts during suspend

Configure interrupts based on hs_phy_mode to avoid triggering of
interrupts during system suspend and suspend the device successfully.

Signed-off-by: Sandeep Maheswaram <quic_c_sanm@...cinc.com>
Reviewed-by: Matthias Kaehlcke <mka@...omium.org>
---
 drivers/usb/dwc3/dwc3-qcom.c | 26 ++++++++++++++++++++------
 1 file changed, 20 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
index 7352124..9804a19 100644
--- a/drivers/usb/dwc3/dwc3-qcom.c
+++ b/drivers/usb/dwc3/dwc3-qcom.c
@@ -316,22 +316,36 @@ static void dwc3_qcom_disable_wakeup_irq(int irq)
 
 static void dwc3_qcom_disable_interrupts(struct dwc3_qcom *qcom)
 {
-	dwc3_qcom_disable_wakeup_irq(qcom->hs_phy_irq);
+	struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3);
 
-	dwc3_qcom_disable_wakeup_irq(qcom->dp_hs_phy_irq);
+	dwc3_qcom_disable_wakeup_irq(qcom->hs_phy_irq);
 
-	dwc3_qcom_disable_wakeup_irq(qcom->dm_hs_phy_irq);
+	if (dwc->hs_phy_mode & PHY_MODE_USB_HOST_LS) {
+		dwc3_qcom_disable_wakeup_irq(qcom->dp_hs_phy_irq);
+	} else if (dwc->hs_phy_mode & PHY_MODE_USB_HOST_HS) {
+		dwc3_qcom_disable_wakeup_irq(qcom->dm_hs_phy_irq);
+	} else {
+		dwc3_qcom_disable_wakeup_irq(qcom->dp_hs_phy_irq);
+		dwc3_qcom_disable_wakeup_irq(qcom->dm_hs_phy_irq);
+	}
 
 	dwc3_qcom_disable_wakeup_irq(qcom->ss_phy_irq);
 }
 
 static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom)
 {
-	dwc3_qcom_enable_wakeup_irq(qcom->hs_phy_irq);
+	struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3);
 
-	dwc3_qcom_enable_wakeup_irq(qcom->dp_hs_phy_irq);
+	dwc3_qcom_enable_wakeup_irq(qcom->hs_phy_irq);
 
-	dwc3_qcom_enable_wakeup_irq(qcom->dm_hs_phy_irq);
+	if (dwc->hs_phy_mode & PHY_MODE_USB_HOST_LS) {
+		dwc3_qcom_enable_wakeup_irq(qcom->dp_hs_phy_irq);
+	} else if (dwc->hs_phy_mode & PHY_MODE_USB_HOST_HS) {
+		dwc3_qcom_enable_wakeup_irq(qcom->dm_hs_phy_irq);
+	} else {
+		dwc3_qcom_enable_wakeup_irq(qcom->dp_hs_phy_irq);
+		dwc3_qcom_enable_wakeup_irq(qcom->dm_hs_phy_irq);
+	}
 
 	dwc3_qcom_enable_wakeup_irq(qcom->ss_phy_irq);
 }
-- 
2.7.4