phy: qcom: Add QCOM SNPS eUSB2 driver

The SM8550 SoC uses Synopsis eUSB2 PHY for USB 2.0.
Add a new driver for it.

The driver is based on a downstream implementation.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Link: https://lore.kernel.org/r/20230208183421.2874423-3-abel.vesa@linaro.orgSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/phy/qualcomm/Kconfig

@@ -112,6 +112,15 @@ config PHY_QCOM_QUSB2
 	  PHY which is usually paired with either the ChipIdea or Synopsys DWC3
 	  USB IPs on MSM SOCs.
 
+config PHY_QCOM_SNPS_EUSB2
+	tristate "Qualcomm SNPS eUSB2 PHY Driver"
+	depends on OF && (ARCH_QCOM || COMPILE_TEST)
+	select GENERIC_PHY
+	help
+	  Enable support for the USB high-speed SNPS eUSB2 phy on Qualcomm
+	  chipsets. The PHY is paired with a Synopsys DWC3 USB controller
+	  on Qualcomm SOCs.
+
 config PHY_QCOM_USB_HS
 	tristate "Qualcomm USB HS PHY module"
 	depends on USB_ULPI_BUS

drivers/phy/qualcomm/Makefile

@@ -13,6 +13,7 @@ obj-$(CONFIG_PHY_QCOM_QMP_UFS)		+= phy-qcom-qmp-ufs.o
 obj-$(CONFIG_PHY_QCOM_QMP_USB)		+= phy-qcom-qmp-usb.o
 
 obj-$(CONFIG_PHY_QCOM_QUSB2)		+= phy-qcom-qusb2.o
+obj-$(CONFIG_PHY_QCOM_SNPS_EUSB2)	+= phy-qcom-snps-eusb2.o
 obj-$(CONFIG_PHY_QCOM_USB_HS) 		+= phy-qcom-usb-hs.o
 obj-$(CONFIG_PHY_QCOM_USB_HSIC) 	+= phy-qcom-usb-hsic.o
 obj-$(CONFIG_PHY_QCOM_USB_HS_28NM)	+= phy-qcom-usb-hs-28nm.o