From 142d50fbce7c364a74f5e8204dba491b9f066e6c Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Wed, 9 Mar 2022 10:05:45 +0100 Subject: [PATCH] usb: dwc3: Add support for usb3-phy PHY configuration When usb3-phy label is found, PHY driver is called and serdes line is initialized. This is preparation for serdes/psgtr driver to configure GT lines based on description in DT. Signed-off-by: Michal Simek --- drivers/usb/dwc3/dwc3-generic.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/usb/dwc3/dwc3-generic.c b/drivers/usb/dwc3/dwc3-generic.c index 01bd0ca190..2c5205df62 100644 --- a/drivers/usb/dwc3/dwc3-generic.c +++ b/drivers/usb/dwc3/dwc3-generic.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include #include @@ -409,6 +410,17 @@ static int dwc3_glue_probe(struct udevice *dev) struct udevice *child = NULL; int index = 0; int ret; + struct phy phy; + + ret = generic_phy_get_by_name(dev, "usb3-phy", &phy); + if (!ret) { + ret = generic_phy_init(&phy); + if (ret) + return ret; + } else if (ret != -ENOENT) { + debug("could not get phy (err %d)\n", ret); + return ret; + } glue->regs = dev_read_addr(dev); @@ -420,6 +432,12 @@ static int dwc3_glue_probe(struct udevice *dev) if (ret) return ret; + if (phy.dev) { + ret = generic_phy_power_on(&phy); + if (ret) + return ret; + } + ret = device_find_first_child(dev, &child); if (ret) return ret; -- 2.39.5