[PATCH v2 3/3] usb: dwc3: host: Set the property usb-skip-phy-init
From: Sandeep Maheswaram <hidden>
Date: 2021-11-08 06:42:31
Also in:
linux-arm-msm, linux-devicetree, lkml
Subsystem:
designware usb3 drd ip driver, the rest, usb subsystem · Maintainers:
Thinh Nguyen, Linus Torvalds, Greg Kroah-Hartman
Runtime suspend of phy drivers was failing from DWC3 driver as runtime usage value is 2 because the phy is initialized from DWC3 core and HCD core. Some controllers like DWC3 and CDNS3 manage phy in their core drivers. This property can be set to avoid phy initialization in HCD core. Signed-off-by: Sandeep Maheswaram <redacted> --- v2: Changed subject prefix from dwc to dwc3. Increased props array size. drivers/usb/dwc3/host.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c
index f29a264..ece7912 100644
--- a/drivers/usb/dwc3/host.c
+++ b/drivers/usb/dwc3/host.c@@ -44,7 +44,7 @@ static int dwc3_host_get_irq(struct dwc3 *dwc) int dwc3_host_init(struct dwc3 *dwc) { - struct property_entry props[4]; + struct property_entry props[5]; struct platform_device *xhci; int ret, irq; struct resource *res;
@@ -107,6 +107,8 @@ int dwc3_host_init(struct dwc3 *dwc) if (DWC3_VER_IS_WITHIN(DWC3, ANY, 300A)) props[prop_idx++] = PROPERTY_ENTRY_BOOL("quirk-broken-port-ped"); + props[prop_idx++] = PROPERTY_ENTRY_BOOL("usb-skip-phy-init"); + if (prop_idx) { ret = device_create_managed_software_node(&xhci->dev, props, NULL); if (ret) {
--
2.7.4