PCI: Collect all native drivers under drivers/pci/controller/

Native PCI drivers for root complex devices were originally all in
drivers/pci/host/.  Some of these devices can also be operated in endpoint
mode.  Drivers for endpoint mode didn't seem to fit in the "host"
directory, so we put both the root complex and endpoint drivers in
per-device directories, e.g., drivers/pci/dwc/, drivers/pci/cadence/, etc.

These per-device directories contain trivial Kconfig and Makefiles and
clutter drivers/pci/.  Make a new drivers/pci/controllers/ directory and
collect all the device-specific drivers there.

No functional change intended.

Link: https://lkml.kernel.org/r/1520304202-232891-1-git-send-email-shawn.lin@rock-chips.com
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

63 files changed, 41 insertions, 43 deletions

diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index b2f0763..56ff8f6 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -145,8 +145,6 @@ config PCI_HYPERV
           PCI devices from a PCI backend to support PCI driver domains.
 
 source "drivers/pci/hotplug/Kconfig"
-source "drivers/pci/cadence/Kconfig"
-source "drivers/pci/dwc/Kconfig"
-source "drivers/pci/host/Kconfig"
+source "drivers/pci/controller/Kconfig"
 source "drivers/pci/endpoint/Kconfig"
 source "drivers/pci/switch/Kconfig"
diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile
index 84c9eef..5352019 100644
--- a/drivers/pci/Makefile
+++ b/drivers/pci/Makefile
@@ -28,14 +28,10 @@ obj-$(CONFIG_PCI_PF_STUB)	+= pci-pf-stub.o
 obj-$(CONFIG_PCI_ECAM)		+= ecam.o
 obj-$(CONFIG_XEN_PCIDEV_FRONTEND) += xen-pcifront.o
 
-obj-y				+= host/
+obj-y				+= controller/
 obj-y				+= switch/
 
 # Endpoint library must be initialized before its users
 obj-$(CONFIG_PCI_ENDPOINT)	+= endpoint/
 
-obj-$(CONFIG_PCIE_CADENCE)	+= cadence/
-# pcie-hisi.o quirks are needed even without CONFIG_PCIE_DW
-obj-y				+= dwc/
-
 ccflags-$(CONFIG_PCI_DEBUG) := -DDEBUG
diff --git a/drivers/pci/cadence/Kconfig b/drivers/pci/cadence/Kconfig
deleted file mode 100644
index e6824cb..0000000
--- a/drivers/pci/cadence/Kconfig
+++ /dev/null
@@ -1,27 +0,0 @@
-menu "Cadence PCIe controllers support"
-
-config PCIE_CADENCE
-	bool
-
-config PCIE_CADENCE_HOST
-	bool "Cadence PCIe host controller"
-	depends on OF
-	depends on PCI
-	select IRQ_DOMAIN
-	select PCIE_CADENCE
-	help
-	  Say Y here if you want to support the Cadence PCIe controller in host
-	  mode. This PCIe controller may be embedded into many different vendors
-	  SoCs.
-
-config PCIE_CADENCE_EP
-	bool "Cadence PCIe endpoint controller"
-	depends on OF
-	depends on PCI_ENDPOINT
-	select PCIE_CADENCE
-	help
-	  Say Y here if you want to support the Cadence PCIe  controller in
-	  endpoint mode. This PCIe controller may be embedded into many
-	  different vendors SoCs.
-
-endmenu
diff --git a/drivers/pci/cadence/Makefile b/drivers/pci/cadence/Makefile
deleted file mode 100644
index 719392b..0000000
--- a/drivers/pci/cadence/Makefile
+++ /dev/null
@@ -1,4 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-obj-$(CONFIG_PCIE_CADENCE) += pcie-cadence.o
-obj-$(CONFIG_PCIE_CADENCE_HOST) += pcie-cadence-host.o
-obj-$(CONFIG_PCIE_CADENCE_EP) += pcie-cadence-ep.o
diff --git a/drivers/pci/host/Kconfig b/drivers/pci/controller/Kconfig
index a96e23b..18fa09b 100644
--- a/drivers/pci/host/Kconfig
+++ b/drivers/pci/controller/Kconfig
@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 
-menu "PCI host controller drivers"
+menu "PCI controller drivers"
 	depends on PCI
 
 config PCI_MVEBU
@@ -20,6 +20,34 @@ config PCI_AARDVARK
 	 controller is part of the South Bridge of the Marvel Armada
 	 3700 SoC.
 
+menu "Cadence PCIe controllers support"
+
+config PCIE_CADENCE
+	bool
+
+config PCIE_CADENCE_HOST
+	bool "Cadence PCIe host controller"
+	depends on OF
+	depends on PCI
+	select IRQ_DOMAIN
+	select PCIE_CADENCE
+	help
+	  Say Y here if you want to support the Cadence PCIe controller in host
+	  mode. This PCIe controller may be embedded into many different vendors
+	  SoCs.
+
+config PCIE_CADENCE_EP
+	bool "Cadence PCIe endpoint controller"
+	depends on OF
+	depends on PCI_ENDPOINT
+	select PCIE_CADENCE
+	help
+	  Say Y here if you want to support the Cadence PCIe  controller in
+	  endpoint mode. This PCIe controller may be embedded into many
+	  different vendors SoCs.
+
+endmenu
+
 config PCIE_XILINX_NWL
 	bool "NWL PCIe Core"
 	depends on ARCH_ZYNQMP || COMPILE_TEST
@@ -243,4 +271,5 @@ config VMD
 	  To compile this driver as a module, choose M here: the
 	  module will be called vmd.
 
+source "drivers/pci/controller/dwc/Kconfig"
 endmenu
diff --git a/drivers/pci/host/Makefile b/drivers/pci/controller/Makefile
index 11d21b0..24322b9 100644
--- a/drivers/pci/host/Makefile
+++ b/drivers/pci/controller/Makefile
@@ -1,4 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_PCIE_CADENCE) += pcie-cadence.o
+obj-$(CONFIG_PCIE_CADENCE_HOST) += pcie-cadence-host.o
+obj-$(CONFIG_PCIE_CADENCE_EP) += pcie-cadence-ep.o
 obj-$(CONFIG_PCI_FTPCI100) += pci-ftpci100.o
 obj-$(CONFIG_PCI_HYPERV) += pci-hyperv.o
 obj-$(CONFIG_PCI_MVEBU) += pci-mvebu.o
@@ -25,6 +28,9 @@ obj-$(CONFIG_PCIE_ROCKCHIP_HOST) += pcie-rockchip-host.o
 obj-$(CONFIG_PCIE_MEDIATEK) += pcie-mediatek.o
 obj-$(CONFIG_PCIE_TANGO_SMP8759) += pcie-tango.o
 obj-$(CONFIG_VMD) += vmd.o
+# pcie-hisi.o quirks are needed even without CONFIG_PCIE_DW
+obj-y				+= dwc/
+
 
 # The following drivers are for devices that use the generic ACPI
 # pci_root.c driver but don't support standard ECAM config access.
diff --git a/drivers/pci/dwc/Kconfig b/drivers/pci/controller/dwc/Kconfig
index 16f52c6..16f52c6 100644
--- a/drivers/pci/dwc/Kconfig
+++ b/drivers/pci/controller/dwc/Kconfig
diff --git a/drivers/pci/dwc/Makefile b/drivers/pci/controller/dwc/Makefile
index 5d2ce72..5d2ce72 100644
--- a/drivers/pci/dwc/Makefile
+++ b/drivers/pci/controller/dwc/Makefile
diff --git a/drivers/pci/dwc/pci-dra7xx.c b/drivers/pci/controller/dwc/pci-dra7xx.c
index f688204..cfaeef8 100644
--- a/drivers/pci/dwc/pci-dra7xx.c
+++ b/drivers/pci/controller/dwc/pci-dra7xx.c
@@ -27,7 +27,7 @@
 #include <linux/mfd/syscon.h>
 #include <linux/regmap.h>
 
-#include "../pci.h"
+#include "../../pci.h"
 #include "pcie-designware.h"
 
 /* PCIe controller wrapper DRA7XX configuration registers */
diff --git a/drivers/pci/dwc/pci-exynos.c b/drivers/pci/controller/dwc/pci-exynos.c
index 4cc1e5d..4cc1e5d 100644
--- a/drivers/pci/dwc/pci-exynos.c
+++ b/drivers/pci/controller/dwc/pci-exynos.c
diff --git a/drivers/pci/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index 80f6046..80f6046 100644
--- a/drivers/pci/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
diff --git a/drivers/pci/dwc/pci-keystone-dw.c b/drivers/pci/controller/dwc/pci-keystone-dw.c
index 0682213..0682213 100644
--- a/drivers/pci/dwc/pci-keystone-dw.c
+++ b/drivers/pci/controller/dwc/pci-keystone-dw.c
diff --git a/drivers/pci/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c
index 3722a5f..3722a5f 100644
--- a/drivers/pci/dwc/pci-keystone.c
+++ b/drivers/pci/controller/dwc/pci-keystone.c
diff --git a/drivers/pci/dwc/pci-keystone.h b/drivers/pci/controller/dwc/pci-keystone.h
index 8a13da3..8a13da3 100644
--- a/drivers/pci/dwc/pci-keystone.h
+++ b/drivers/pci/controller/dwc/pci-keystone.h
diff --git a/drivers/pci/dwc/pci-layerscape.c b/drivers/pci/controller/dwc/pci-layerscape.c
index 3724d3e..3724d3e 100644
--- a/drivers/pci/dwc/pci-layerscape.c
+++ b/drivers/pci/controller/dwc/pci-layerscape.c
diff --git a/drivers/pci/dwc/pcie-armada8k.c b/drivers/pci/controller/dwc/pcie-armada8k.c
index 072fd7e..072fd7e 100644
--- a/drivers/pci/dwc/pcie-armada8k.c
+++ b/drivers/pci/controller/dwc/pcie-armada8k.c
diff --git a/drivers/pci/dwc/pcie-artpec6.c b/drivers/pci/controller/dwc/pcie-artpec6.c
index 321b56c..321b56c 100644
--- a/drivers/pci/dwc/pcie-artpec6.c
+++ b/drivers/pci/controller/dwc/pcie-artpec6.c
diff --git a/drivers/pci/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
index 1eec441..1eec441 100644
--- a/drivers/pci/dwc/pcie-designware-ep.c
+++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
diff --git a/drivers/pci/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index cba1432..781aa03 100644
--- a/drivers/pci/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -15,7 +15,7 @@
 #include <linux/pci_regs.h>
 #include <linux/platform_device.h>
 
-#include "../pci.h"
+#include "../../pci.h"
 #include "pcie-designware.h"
 
 static struct pci_ops dw_pcie_ops;
diff --git a/drivers/pci/dwc/pcie-designware-plat.c b/drivers/pci/controller/dwc/pcie-designware-plat.c
index 5937fed..5937fed 100644
--- a/drivers/pci/dwc/pcie-designware-plat.c
+++ b/drivers/pci/controller/dwc/pcie-designware-plat.c
diff --git a/drivers/pci/dwc/pcie-designware.c b/drivers/pci/controller/dwc/pcie-designware.c
index 778c4f7..778c4f7 100644
--- a/drivers/pci/dwc/pcie-designware.c
+++ b/drivers/pci/controller/dwc/pcie-designware.c
diff --git a/drivers/pci/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h
index bee4e25..bee4e25 100644
--- a/drivers/pci/dwc/pcie-designware.h
+++ b/drivers/pci/controller/dwc/pcie-designware.h
diff --git a/drivers/pci/dwc/pcie-hisi.c b/drivers/pci/controller/dwc/pcie-hisi.c
index 2658aae..6d9e1b2 100644
--- a/drivers/pci/dwc/pcie-hisi.c
+++ b/drivers/pci/controller/dwc/pcie-hisi.c
@@ -19,7 +19,7 @@
 #include <linux/pci-acpi.h>
 #include <linux/pci-ecam.h>
 #include <linux/regmap.h>
-#include "../pci.h"
+#include "../../pci.h"
 
 #if defined(CONFIG_PCI_HISI) || (defined(CONFIG_ACPI) && defined(CONFIG_PCI_QUIRKS))
 
diff --git a/drivers/pci/dwc/pcie-histb.c b/drivers/pci/controller/dwc/pcie-histb.c
index 3611d6c..3611d6c 100644
--- a/drivers/pci/dwc/pcie-histb.c
+++ b/drivers/pci/controller/dwc/pcie-histb.c
diff --git a/drivers/pci/dwc/pcie-kirin.c b/drivers/pci/controller/dwc/pcie-kirin.c
index d2970a0..d2970a0 100644
--- a/drivers/pci/dwc/pcie-kirin.c
+++ b/drivers/pci/controller/dwc/pcie-kirin.c
diff --git a/drivers/pci/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
index a1d0198..a1d0198 100644
--- a/drivers/pci/dwc/pcie-qcom.c
+++ b/drivers/pci/controller/dwc/pcie-qcom.c
diff --git a/drivers/pci/dwc/pcie-spear13xx.c b/drivers/pci/controller/dwc/pcie-spear13xx.c
index ecb58f7..ecb58f7 100644
--- a/drivers/pci/dwc/pcie-spear13xx.c
+++ b/drivers/pci/controller/dwc/pcie-spear13xx.c
diff --git a/drivers/pci/host/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index d3172d5..d3172d5 100644
--- a/drivers/pci/host/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
diff --git a/drivers/pci/host/pci-ftpci100.c b/drivers/pci/controller/pci-ftpci100.c
index a1ebe9e..a1ebe9e 100644
--- a/drivers/pci/host/pci-ftpci100.c
+++ b/drivers/pci/controller/pci-ftpci100.c
diff --git a/drivers/pci/host/pci-host-common.c b/drivers/pci/controller/pci-host-common.c
index d8f1045..d8f1045 100644
--- a/drivers/pci/host/pci-host-common.c
+++ b/drivers/pci/controller/pci-host-common.c
diff --git a/drivers/pci/host/pci-host-generic.c b/drivers/pci/controller/pci-host-generic.c
index dea3ec7..dea3ec7 100644
--- a/drivers/pci/host/pci-host-generic.c
+++ b/drivers/pci/controller/pci-host-generic.c
diff --git a/drivers/pci/host/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c
index 6cc5036..6cc5036 100644
--- a/drivers/pci/host/pci-hyperv.c
+++ b/drivers/pci/controller/pci-hyperv.c
diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/controller/pci-mvebu.c
index 23e2708..23e2708 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/controller/pci-mvebu.c
diff --git a/drivers/pci/host/pci-rcar-gen2.c b/drivers/pci/controller/pci-rcar-gen2.c
index 326171c..326171c 100644
--- a/drivers/pci/host/pci-rcar-gen2.c
+++ b/drivers/pci/controller/pci-rcar-gen2.c
diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/controller/pci-tegra.c
index f4f53d0..f4f53d0 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/controller/pci-tegra.c
diff --git a/drivers/pci/host/pci-thunder-ecam.c b/drivers/pci/controller/pci-thunder-ecam.c
index 32d1d7b..32d1d7b 100644
--- a/drivers/pci/host/pci-thunder-ecam.c
+++ b/drivers/pci/controller/pci-thunder-ecam.c
diff --git a/drivers/pci/host/pci-thunder-pem.c b/drivers/pci/controller/pci-thunder-pem.c
index f127ce8..f127ce8 100644
--- a/drivers/pci/host/pci-thunder-pem.c
+++ b/drivers/pci/controller/pci-thunder-pem.c
diff --git a/drivers/pci/host/pci-v3-semi.c b/drivers/pci/controller/pci-v3-semi.c
index 68b8bfb..68b8bfb 100644
--- a/drivers/pci/host/pci-v3-semi.c
+++ b/drivers/pci/controller/pci-v3-semi.c
diff --git a/drivers/pci/host/pci-versatile.c b/drivers/pci/controller/pci-versatile.c
index 994f320..994f320 100644
--- a/drivers/pci/host/pci-versatile.c
+++ b/drivers/pci/controller/pci-versatile.c
diff --git a/drivers/pci/host/pci-xgene-msi.c b/drivers/pci/controller/pci-xgene-msi.c
index f4c02da..f4c02da 100644
--- a/drivers/pci/host/pci-xgene-msi.c
+++ b/drivers/pci/controller/pci-xgene-msi.c
diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/controller/pci-xgene.c
index d854d67..d854d67 100644
--- a/drivers/pci/host/pci-xgene.c
+++ b/drivers/pci/controller/pci-xgene.c
diff --git a/drivers/pci/host/pcie-altera-msi.c b/drivers/pci/controller/pcie-altera-msi.c
index 025ef7d..025ef7d 100644
--- a/drivers/pci/host/pcie-altera-msi.c
+++ b/drivers/pci/controller/pcie-altera-msi.c
diff --git a/drivers/pci/host/pcie-altera.c b/drivers/pci/controller/pcie-altera.c
index 7d05e51..7d05e51 100644
--- a/drivers/pci/host/pcie-altera.c
+++ b/drivers/pci/controller/pcie-altera.c
diff --git a/drivers/pci/cadence/pcie-cadence-ep.c b/drivers/pci/controller/pcie-cadence-ep.c
index 3d8283e..3d8283e 100644
--- a/drivers/pci/cadence/pcie-cadence-ep.c
+++ b/drivers/pci/controller/pcie-cadence-ep.c
diff --git a/drivers/pci/cadence/pcie-cadence-host.c b/drivers/pci/controller/pcie-cadence-host.c
index a4ebbd3..a4ebbd3 100644
--- a/drivers/pci/cadence/pcie-cadence-host.c
+++ b/drivers/pci/controller/pcie-cadence-host.c
diff --git a/drivers/pci/cadence/pcie-cadence.c b/drivers/pci/controller/pcie-cadence.c
index 138d113..138d113 100644
--- a/drivers/pci/cadence/pcie-cadence.c
+++ b/drivers/pci/controller/pcie-cadence.c
diff --git a/drivers/pci/cadence/pcie-cadence.h b/drivers/pci/controller/pcie-cadence.h
index 4bb2733..4bb2733 100644
--- a/drivers/pci/cadence/pcie-cadence.h
+++ b/drivers/pci/controller/pcie-cadence.h
diff --git a/drivers/pci/host/pcie-iproc-bcma.c b/drivers/pci/controller/pcie-iproc-bcma.c
index aa55b06..aa55b06 100644
--- a/drivers/pci/host/pcie-iproc-bcma.c
+++ b/drivers/pci/controller/pcie-iproc-bcma.c
diff --git a/drivers/pci/host/pcie-iproc-msi.c b/drivers/pci/controller/pcie-iproc-msi.c
index 9deb56989..9deb56989 100644
--- a/drivers/pci/host/pcie-iproc-msi.c
+++ b/drivers/pci/controller/pcie-iproc-msi.c
diff --git a/drivers/pci/host/pcie-iproc-platform.c b/drivers/pci/controller/pcie-iproc-platform.c
index f30f5f3..f30f5f3 100644
--- a/drivers/pci/host/pcie-iproc-platform.c
+++ b/drivers/pci/controller/pcie-iproc-platform.c
diff --git a/drivers/pci/host/pcie-iproc.c b/drivers/pci/controller/pcie-iproc.c
index 3c76c5f..3c76c5f 100644
--- a/drivers/pci/host/pcie-iproc.c
+++ b/drivers/pci/controller/pcie-iproc.c
diff --git a/drivers/pci/host/pcie-iproc.h b/drivers/pci/controller/pcie-iproc.h
index 814b600..814b600 100644
--- a/drivers/pci/host/pcie-iproc.h
+++ b/drivers/pci/controller/pcie-iproc.h
diff --git a/drivers/pci/host/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
index 0baabe3..0baabe3 100644
--- a/drivers/pci/host/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
diff --git a/drivers/pci/host/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
index 4d6c20e..4d6c20e 100644
--- a/drivers/pci/host/pcie-mobiveil.c
+++ b/drivers/pci/controller/pcie-mobiveil.c
diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/controller/pcie-rcar.c
index 874d75c..874d75c 100644
--- a/drivers/pci/host/pcie-rcar.c
+++ b/drivers/pci/controller/pcie-rcar.c
diff --git a/drivers/pci/host/pcie-rockchip-ep.c b/drivers/pci/controller/pcie-rockchip-ep.c
index fc267a4..fc267a4 100644
--- a/drivers/pci/host/pcie-rockchip-ep.c
+++ b/drivers/pci/controller/pcie-rockchip-ep.c
diff --git a/drivers/pci/host/pcie-rockchip-host.c b/drivers/pci/controller/pcie-rockchip-host.c
index 1372d27..1372d27 100644
--- a/drivers/pci/host/pcie-rockchip-host.c
+++ b/drivers/pci/controller/pcie-rockchip-host.c
diff --git a/drivers/pci/host/pcie-rockchip.c b/drivers/pci/controller/pcie-rockchip.c
index c53d132..c53d132 100644
--- a/drivers/pci/host/pcie-rockchip.c
+++ b/drivers/pci/controller/pcie-rockchip.c
diff --git a/drivers/pci/host/pcie-rockchip.h b/drivers/pci/controller/pcie-rockchip.h
index 8e87a05..8e87a05 100644
--- a/drivers/pci/host/pcie-rockchip.h
+++ b/drivers/pci/controller/pcie-rockchip.h
diff --git a/drivers/pci/host/pcie-tango.c b/drivers/pci/controller/pcie-tango.c
index 21a208d..21a208d 100644
--- a/drivers/pci/host/pcie-tango.c
+++ b/drivers/pci/controller/pcie-tango.c
diff --git a/drivers/pci/host/pcie-xilinx-nwl.c b/drivers/pci/controller/pcie-xilinx-nwl.c
index 6a4bbb5..6a4bbb5 100644
--- a/drivers/pci/host/pcie-xilinx-nwl.c
+++ b/drivers/pci/controller/pcie-xilinx-nwl.c
diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/controller/pcie-xilinx.c
index b110a3a..b110a3a 100644
--- a/drivers/pci/host/pcie-xilinx.c
+++ b/drivers/pci/controller/pcie-xilinx.c
diff --git a/drivers/pci/host/vmd.c b/drivers/pci/controller/vmd.c
index 942b64f..942b64f 100644
--- a/drivers/pci/host/vmd.c
+++ b/drivers/pci/controller/vmd.c