PCI: rcar-pcie: Remove Gen2 designation from Kconfig

It appears that Gen2 is a misnomer for the R-Car PCIE driver
which also supports Gen 1 and Gen 3 SoCs. Accordingly, drop Gen 2
from the help text and Kconfig symbol.

Also, re-arange the Kconfig symbol name to use PCIE as the prefix.
This appears to be in keeping with other PCIE Kconfig symbols.

Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>

arch/arm/configs/multi_v7_defconfig

@@ -119,7 +119,7 @@ CONFIG_PCI_MSI=y
 CONFIG_PCI_MVEBU=y
 CONFIG_PCI_TEGRA=y
 CONFIG_PCI_RCAR_GEN2=y
-CONFIG_PCI_RCAR_GEN2_PCIE=y
+CONFIG_PCIE_RCAR=y
 CONFIG_PCIEPORTBUS=y
 CONFIG_SMP=y
 CONFIG_NR_CPUS=16

arch/arm/configs/shmobile_defconfig

@@ -24,7 +24,7 @@ CONFIG_PL310_ERRATA_588369=y
 CONFIG_ARM_ERRATA_754322=y
 CONFIG_PCI=y
 CONFIG_PCI_RCAR_GEN2=y
-CONFIG_PCI_RCAR_GEN2_PCIE=y
+CONFIG_PCIE_RCAR=y
 CONFIG_SMP=y
 CONFIG_SCHED_MC=y
 CONFIG_HAVE_ARM_ARCH_TIMER=y

arch/arm64/configs/defconfig

@@ -56,7 +56,7 @@ CONFIG_ARCH_ZYNQMP=y
 CONFIG_PCI=y
 CONFIG_PCI_MSI=y
 CONFIG_PCI_IOV=y
-CONFIG_PCI_RCAR_GEN2_PCIE=y
+CONFIG_PCIE_RCAR=y
 CONFIG_PCI_HOST_GENERIC=y
 CONFIG_PCI_XGENE=y
 CONFIG_PCI_LAYERSCAPE=y

drivers/pci/host/Kconfig

@@ -69,11 +69,11 @@ config PCI_RCAR_GEN2
 	  There are 3 internal PCI controllers available with a single
 	  built-in EHCI/OHCI host controller present on each one.
 
-config PCI_RCAR_GEN2_PCIE
+config PCIE_RCAR
 	bool "Renesas R-Car PCIe controller"
 	depends on ARCH_RENESAS || (ARM && COMPILE_TEST)
 	help
-	  Say Y here if you want PCIe controller support on R-Car Gen2 SoCs.
+	  Say Y here if you want PCIe controller support on R-Car SoCs.
 
 config PCI_HOST_COMMON
 	bool

drivers/pci/host/Makefile

@@ -7,7 +7,7 @@ obj-$(CONFIG_PCI_HYPERV) += pci-hyperv.o
 obj-$(CONFIG_PCI_MVEBU) += pci-mvebu.o
 obj-$(CONFIG_PCI_TEGRA) += pci-tegra.o
 obj-$(CONFIG_PCI_RCAR_GEN2) += pci-rcar-gen2.o
-obj-$(CONFIG_PCI_RCAR_GEN2_PCIE) += pcie-rcar.o
+obj-$(CONFIG_PCIE_RCAR) += pcie-rcar.o
 obj-$(CONFIG_PCI_HOST_COMMON) += pci-host-common.o
 obj-$(CONFIG_PCI_HOST_GENERIC) += pci-host-generic.o
 obj-$(CONFIG_PCIE_SPEAR13XX) += pcie-spear13xx.o