phy: airoha: Add PCIe PHY driver for EN7581 SoC.

Introduce support for Airoha PCIe PHY controller available in EN7581
SoC.

Reviewed-by: AngeloGioacchino Del Regno <[email protected]>
Tested-by: Zhengping Zhang <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Link: https://lore.kernel.org/r/20ac99aa8628d97778594f606681db7f868f24fe.1718485860.git.lorenzo@kernel.org
Signed-off-by: Vinod Koul <[email protected]>

Author: LorenzoBianconi

MAINTAINERS

@@ -682,6 +682,14 @@ S:	Supported
 F:	fs/aio.c
 F:	include/linux/*aio*.h
 
+AIROHA PCIE PHY DRIVER
+M:	Lorenzo Bianconi <[email protected]>
+L:	[email protected] (moderated for non-subscribers)
+S:	Maintained
+F:	Documentation/devicetree/bindings/phy/airoha,en7581-pcie-phy.yaml
+F:	drivers/phy/phy-airoha-pcie-regs.h
+F:	drivers/phy/phy-airoha-pcie.c
+
 AIROHA SPI SNFI DRIVER
 M:	Lorenzo Bianconi <[email protected]>
 M:	Ray Liu <[email protected]>

drivers/phy/Kconfig

@@ -72,6 +72,16 @@ config PHY_CAN_TRANSCEIVER
 	  functional modes using gpios and sets the attribute max link
 	  rate, for CAN drivers.
 
+config PHY_AIROHA_PCIE
+	tristate "Airoha PCIe-PHY Driver"
+	depends on ARCH_AIROHA || COMPILE_TEST
+	depends on OF
+	select GENERIC_PHY
+	help
+	  Say Y here to add support for Airoha PCIe PHY driver.
+	  This driver create the basic PHY instance and provides initialize
+	  callback for PCIe GEN3 port.
+
 source "drivers/phy/allwinner/Kconfig"
 source "drivers/phy/amlogic/Kconfig"
 source "drivers/phy/broadcom/Kconfig"

drivers/phy/Makefile

@@ -10,6 +10,7 @@ obj-$(CONFIG_PHY_LPC18XX_USB_OTG)	+= phy-lpc18xx-usb-otg.o
 obj-$(CONFIG_PHY_XGENE)			+= phy-xgene.o
 obj-$(CONFIG_PHY_PISTACHIO_USB)		+= phy-pistachio-usb.o
 obj-$(CONFIG_USB_LGM_PHY)		+= phy-lgm-usb.o
+obj-$(CONFIG_PHY_AIROHA_PCIE)		+= phy-airoha-pcie.o
 obj-y					+= allwinner/	\
 					   amlogic/	\
 					   broadcom/	\