phy: qcom-qmp-usb: split off the legacy USB+dp_com support

When adding support for some of the platforms (sc7180, sc8180x, sdm845,
sm8[1234]50), we added USB PHYs for the combo USB+DP QMP PHYs. Now all
such usecases were migrated to use USB+DP Combo driver. To simplify the
qcom-qmp-usb PHY driver split the legacy USB+dp_com support into a
separate driver.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20230531023415.1209301-6-dmitry.baryshkov@linaro.orgSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/phy/qualcomm/Kconfig

@@ -102,6 +102,16 @@ config PHY_QCOM_QMP_USB
 	  Enable this to support the QMP USB PHY transceiver that is used
 	  with USB3 controllers on Qualcomm chips.
 
+config PHY_QCOM_QMP_USB_LEGACY
+	tristate "Qualcomm QMP legacy USB PHY Driver"
+	select GENERIC_PHY
+	default n
+	help
+	  Enable this legacy driver to support the QMP USB+DisplayPort Combo
+	  PHY transceivers working only in USB3 mode on Qualcomm chips. This
+	  driver exists only for compatibility with older device trees,
+	  existing users have been migrated to PHY_QCOM_QMP_COMBO driver.
+
 endif # PHY_QCOM_QMP
 
 config PHY_QCOM_QUSB2

drivers/phy/qualcomm/Makefile

@@ -11,6 +11,7 @@ obj-$(CONFIG_PHY_QCOM_QMP_PCIE)		+= phy-qcom-qmp-pcie.o
 obj-$(CONFIG_PHY_QCOM_QMP_PCIE_8996)	+= phy-qcom-qmp-pcie-msm8996.o
 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_QMP_USB_LEGACY)	+= phy-qcom-qmp-usb-legacy.o
 
 obj-$(CONFIG_PHY_QCOM_QUSB2)		+= phy-qcom-qusb2.o
 obj-$(CONFIG_PHY_QCOM_SNPS_EUSB2)	+= phy-qcom-snps-eusb2.o