usb: dwc3: support for pinctrl state change during system sleep
Add support for USB DRVVBUS pinctrl state change during
suspend/resume. This helps is conserving power during
system sleep.
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 6270581..cfbcebe 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -34,6 +34,7 @@
#include <linux/dma-mapping.h>
#include <linux/of.h>
#include <linux/acpi.h>
+#include <linux/pinctrl/consumer.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
@@ -1125,6 +1126,8 @@
phy_exit(dwc->usb2_generic_phy);
phy_exit(dwc->usb3_generic_phy);
+ pinctrl_pm_select_sleep_state(dev);
+
return 0;
}
@@ -1134,6 +1137,8 @@
unsigned long flags;
int ret;
+ pinctrl_pm_select_default_state(dev);
+
usb_phy_init(dwc->usb3_phy);
usb_phy_init(dwc->usb2_phy);
ret = phy_init(dwc->usb2_generic_phy);