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usb: dwc3: support for pinctrl state change during system sleep

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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>
This commit is contained in:
Sekhar Nori 2015-08-31 21:09:08 +05:30 committed by Felipe Balbi
parent 9e44d194b9
commit 6344475f53
1 changed files with 5 additions and 0 deletions
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5
drivers/usb/dwc3/core.c
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@ -34,6 +34,7 @@
#include <linux/dma-mapping.h> #include <linux/dma-mapping.h>
#include <linux/of.h> #include <linux/of.h>
#include <linux/acpi.h> #include <linux/acpi.h>
#include <linux/pinctrl/consumer.h>
#include <linux/usb/ch9.h> #include <linux/usb/ch9.h>
#include <linux/usb/gadget.h> #include <linux/usb/gadget.h>
@ -1125,6 +1126,8 @@ static int dwc3_suspend(struct device *dev)
phy_exit(dwc->usb2_generic_phy); phy_exit(dwc->usb2_generic_phy);
phy_exit(dwc->usb3_generic_phy); phy_exit(dwc->usb3_generic_phy);
pinctrl_pm_select_sleep_state(dev);
return 0; return 0;
} }
@ -1134,6 +1137,8 @@ static int dwc3_resume(struct device *dev)
unsigned long flags; unsigned long flags;
int ret; int ret;
pinctrl_pm_select_default_state(dev);
usb_phy_init(dwc->usb3_phy); usb_phy_init(dwc->usb3_phy);
usb_phy_init(dwc->usb2_phy); usb_phy_init(dwc->usb2_phy);
ret = phy_init(dwc->usb2_generic_phy); ret = phy_init(dwc->usb2_generic_phy);