From: Jianxin Qin <jianxin.qin@amlogic.com>
Date: Fri, 4 May 2018 03:39:47 +0000 (+0800)
Subject: usb: dwc3: add shutdown function for dwc3 driver
X-Git-Tag: khadas-vims-v0.9.6-release~1923
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=39234ed727ca1b8457ab33d1ba6ceaf153a97356;p=platform%2Fkernel%2Flinux-amlogic.git

usb: dwc3: add shutdown function for dwc3 driver

PD#164611: usb: dwc3: add shutdown function for dwc3 driver

In suspend mode, we will shutdown the USB controller for reducing
more power consumption.

Change-Id: Icfc3182fce4f5455397e5f11fd08693f763757b3
Signed-off-by: Jianxin Qin <jianxin.qin@amlogic.com>
---

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 7a8c51c5..c7c0907 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1278,6 +1278,17 @@ err0:
 	return ret;
 }
 
+#ifdef CONFIG_AMLOGIC_USB
+void dwc3_shutdown(struct platform_device *pdev)
+{
+	struct dwc3 *dwc = platform_get_drvdata(pdev);
+
+	dev_dbg(dwc->dev, "%s\n", __func__);
+	usb_phy_shutdown(dwc->usb2_phy);
+	usb_phy_shutdown(dwc->usb3_phy);
+}
+#endif
+
 static int dwc3_remove(struct platform_device *pdev)
 {
 	struct dwc3	*dwc = platform_get_drvdata(pdev);
@@ -1529,6 +1540,9 @@ MODULE_DEVICE_TABLE(acpi, dwc3_acpi_match);
 static struct platform_driver dwc3_driver = {
 	.probe		= dwc3_probe,
 	.remove		= dwc3_remove,
+#ifdef CONFIG_AMLOGIC_USB
+	.shutdown	= dwc3_shutdown,
+#endif
 	.driver		= {
 		.name	= "dwc3",
 		.of_match_table	= of_match_ptr(of_dwc3_match),