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From:   trix@redhat.com
To:     hao.wu@intel.com, mdf@kernel.org, corbet@lwn.net,
        michal.simek@xilinx.com, gregkh@linuxfoundation.org,
        krzysztof.kozlowski@canonical.com, nava.manne@xilinx.com,
        yilun.xu@intel.com, davidgow@google.com, fpacheco@redhat.com,
        richard.gong@intel.com, luca@lucaceresoli.net
Cc:     linux-fpga@vger.kernel.org, linux-doc@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        Tom Rix <trix@redhat.com>
Subject: [PATCH v4 3/4] fpga: altera: reorganize to subdir layout
Date:   Mon, 14 Jun 2021 13:16:47 -0700
Message-Id: <20210614201648.3358206-5-trix@redhat.com>
In-Reply-To: <20210614201648.3358206-1-trix@redhat.com>
References: <20210614201648.3358206-1-trix@redhat.com>
MIME-Version: 1.0
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From: Tom Rix <trix@redhat.com>

Follow drivers/net/ethernet/ which has control configs
NET_VENDOR_BLA that map to drivers/net/ethernet/bla
Since fpgas do not have many vendors, drop the 'VENDOR' and use
FPGA_BLA.

There are several new subdirs
altera/
dfl/
lattice/
xilinx/

Each subdir has a Kconfig that has a new/reused

if FPGA_BLA
  ... existing configs ...
endif FPGA_BLA

Which is sourced into the main fpga/Kconfig

Each subdir has a Makefile whose transversal is controlled in the
fpga/Makefile by

obj-$(CONFIG_FPGA_BLA) += bla/

This is the altera/ subdir part.

Create a altera/ subdir
Move altera-* and soc* ts73xx* files to it.
Add a Kconfig and Makefile

Signed-off-by: Tom Rix <trix@redhat.com>
---
 drivers/fpga/Kconfig                          | 70 +--------------
 drivers/fpga/Makefile                         | 11 +--
 drivers/fpga/altera/Kconfig                   | 85 +++++++++++++++++++
 drivers/fpga/altera/Makefile                  | 12 +++
 drivers/fpga/{ => altera}/altera-cvp.c        |  0
 drivers/fpga/{ => altera}/altera-fpga2sdram.c |  0
 .../fpga/{ => altera}/altera-freeze-bridge.c  |  0
 drivers/fpga/{ => altera}/altera-hps2fpga.c   |  0
 .../{ => altera}/altera-pr-ip-core-plat.c     |  0
 drivers/fpga/{ => altera}/altera-pr-ip-core.c |  0
 drivers/fpga/{ => altera}/altera-ps-spi.c     |  0
 drivers/fpga/{ => altera}/socfpga-a10.c       |  0
 drivers/fpga/{ => altera}/socfpga.c           |  0
 drivers/fpga/{ => altera}/stratix10-soc.c     |  0
 drivers/fpga/{ => altera}/ts73xx-fpga.c       |  0
 15 files changed, 99 insertions(+), 79 deletions(-)
 create mode 100644 drivers/fpga/altera/Kconfig
 create mode 100644 drivers/fpga/altera/Makefile
 rename drivers/fpga/{ => altera}/altera-cvp.c (100%)
 rename drivers/fpga/{ => altera}/altera-fpga2sdram.c (100%)
 rename drivers/fpga/{ => altera}/altera-freeze-bridge.c (100%)
 rename drivers/fpga/{ => altera}/altera-hps2fpga.c (100%)
 rename drivers/fpga/{ => altera}/altera-pr-ip-core-plat.c (100%)
 rename drivers/fpga/{ => altera}/altera-pr-ip-core.c (100%)
 rename drivers/fpga/{ => altera}/altera-ps-spi.c (100%)
 rename drivers/fpga/{ => altera}/socfpga-a10.c (100%)
 rename drivers/fpga/{ => altera}/socfpga.c (100%)
 rename drivers/fpga/{ => altera}/stratix10-soc.c (100%)
 rename drivers/fpga/{ => altera}/ts73xx-fpga.c (100%)

diff --git a/drivers/fpga/Kconfig b/drivers/fpga/Kconfig
index 28c261807b428..2c829b1105925 100644
--- a/drivers/fpga/Kconfig
+++ b/drivers/fpga/Kconfig
@@ -12,52 +12,6 @@ menuconfig FPGA
 
 if FPGA
 
-config FPGA_MGR_SOCFPGA
-	tristate "Altera SOCFPGA FPGA Manager"
-	depends on ARCH_INTEL_SOCFPGA || COMPILE_TEST
-	help
-	  FPGA manager driver support for Altera SOCFPGA.
-
-config FPGA_MGR_SOCFPGA_A10
-	tristate "Altera SoCFPGA Arria10"
-	depends on ARCH_INTEL_SOCFPGA || COMPILE_TEST
-	select REGMAP_MMIO
-	help
-	  FPGA manager driver support for Altera Arria10 SoCFPGA.
-
-config ALTERA_PR_IP_CORE
-	tristate "Altera Partial Reconfiguration IP Core"
-	help
-	  Core driver support for Altera Partial Reconfiguration IP component
-
-config ALTERA_PR_IP_CORE_PLAT
-	tristate "Platform support of Altera Partial Reconfiguration IP Core"
-	depends on ALTERA_PR_IP_CORE && OF && HAS_IOMEM
-	help
-	  Platform driver support for Altera Partial Reconfiguration IP
-	  component
-
-config FPGA_MGR_ALTERA_PS_SPI
-	tristate "Altera FPGA Passive Serial over SPI"
-	depends on SPI
-	select BITREVERSE
-	help
-	  FPGA manager driver support for Altera Arria/Cyclone/Stratix
-	  using the passive serial interface over SPI.
-
-config FPGA_MGR_ALTERA_CVP
-	tristate "Altera CvP FPGA Manager"
-	depends on PCI
-	help
-	  FPGA manager driver support for Arria-V, Cyclone-V, Stratix-V,
-	  Arria 10 and Stratix10 Altera FPGAs using the CvP interface over PCIe.
-
-config FPGA_MGR_STRATIX10_SOC
-	tristate "Intel Stratix10 SoC FPGA Manager"
-	depends on (ARCH_INTEL_SOCFPGA && INTEL_STRATIX10_SERVICE)
-	help
-	  FPGA manager driver support for the Intel Stratix10 SoC.
-
 config FPGA_MGR_ICE40_SPI
 	tristate "Lattice iCE40 SPI"
 	depends on OF && SPI
@@ -71,35 +25,12 @@ config FPGA_MGR_MACHXO2_SPI
 	  FPGA manager driver support for Lattice MachXO2 configuration
 	  over slave SPI interface.
 
-config FPGA_MGR_TS73XX
-	tristate "Technologic Systems TS-73xx SBC FPGA Manager"
-	depends on ARCH_EP93XX && MACH_TS72XX
-	help
-	  FPGA manager driver support for the Altera Cyclone II FPGA
-	  present on the TS-73xx SBC boards.
-
 config FPGA_BRIDGE
 	tristate "FPGA Bridge Framework"
 	help
 	  Say Y here if you want to support bridges connected between host
 	  processors and FPGAs or between FPGAs.
 
-config SOCFPGA_FPGA_BRIDGE
-	tristate "Altera SoCFPGA FPGA Bridges"
-	depends on ARCH_INTEL_SOCFPGA && FPGA_BRIDGE
-	help
-	  Say Y to enable drivers for FPGA bridges for Altera SOCFPGA
-	  devices.
-
-config ALTERA_FREEZE_BRIDGE
-	tristate "Altera FPGA Freeze Bridge"
-	depends on FPGA_BRIDGE && HAS_IOMEM
-	help
-	  Say Y to enable drivers for Altera FPGA Freeze bridges.  A
-	  freeze bridge is a bridge that exists in the FPGA fabric to
-	  isolate one region of the FPGA from the busses while that
-	  region is being reprogrammed.
-
 config FPGA_REGION
 	tristate "FPGA Region"
 	depends on FPGA_BRIDGE
@@ -115,6 +46,7 @@ config OF_FPGA_REGION
 	  Support for loading FPGA images by applying a Device Tree
 	  overlay.
 
+source "drivers/fpga/altera/Kconfig"
 source "drivers/fpga/dfl/Kconfig"
 source "drivers/fpga/xilinx/Kconfig"
 
diff --git a/drivers/fpga/Makefile b/drivers/fpga/Makefile
index 0868c7c4264d8..db83aeb997f24 100644
--- a/drivers/fpga/Makefile
+++ b/drivers/fpga/Makefile
@@ -7,25 +7,16 @@
 obj-$(CONFIG_FPGA)			+= fpga-mgr.o
 
 # FPGA Manager Drivers
-obj-$(CONFIG_FPGA_MGR_ALTERA_CVP)	+= altera-cvp.o
-obj-$(CONFIG_FPGA_MGR_ALTERA_PS_SPI)	+= altera-ps-spi.o
 obj-$(CONFIG_FPGA_MGR_ICE40_SPI)	+= ice40-spi.o
 obj-$(CONFIG_FPGA_MGR_MACHXO2_SPI)	+= machxo2-spi.o
-obj-$(CONFIG_FPGA_MGR_SOCFPGA)		+= socfpga.o
-obj-$(CONFIG_FPGA_MGR_SOCFPGA_A10)	+= socfpga-a10.o
-obj-$(CONFIG_FPGA_MGR_STRATIX10_SOC)	+= stratix10-soc.o
-obj-$(CONFIG_FPGA_MGR_TS73XX)		+= ts73xx-fpga.o
-obj-$(CONFIG_ALTERA_PR_IP_CORE)         += altera-pr-ip-core.o
-obj-$(CONFIG_ALTERA_PR_IP_CORE_PLAT)    += altera-pr-ip-core-plat.o
 
 # FPGA Bridge Drivers
 obj-$(CONFIG_FPGA_BRIDGE)		+= fpga-bridge.o
-obj-$(CONFIG_SOCFPGA_FPGA_BRIDGE)	+= altera-hps2fpga.o altera-fpga2sdram.o
-obj-$(CONFIG_ALTERA_FREEZE_BRIDGE)	+= altera-freeze-bridge.o
 
 # High Level Interfaces
 obj-$(CONFIG_FPGA_REGION)		+= fpga-region.o
 obj-$(CONFIG_OF_FPGA_REGION)		+= of-fpga-region.o
 
+obj-$(CONFIG_FPGA_ALTERA) += altera/
 obj-$(CONFIG_FPGA_DFL) += dfl/
 obj-$(CONFIG_FPGA_XILINX) += xilinx/
diff --git a/drivers/fpga/altera/Kconfig b/drivers/fpga/altera/Kconfig
new file mode 100644
index 0000000000000..b2385f0bf178d
--- /dev/null
+++ b/drivers/fpga/altera/Kconfig
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+config FPGA_ALTERA
+	bool "Altera FPGAs"
+	default y
+	help
+	  If you have an altera fpga, say Y.
+
+	  Note that the answer to this question doesn't directly affect the
+	  kernel: saying N will just cause the configurator to skip all
+	  the questions about altera fpgas. If you say Y, you will be asked
+	  for your specific device in the following questions.
+
+if FPGA_ALTERA
+
+config FPGA_MGR_SOCFPGA
+	tristate "Altera SOCFPGA FPGA Manager"
+	depends on ARCH_INTEL_SOCFPGA || COMPILE_TEST
+	help
+	  FPGA manager driver support for Altera SOCFPGA.
+
+config FPGA_MGR_SOCFPGA_A10
+	tristate "Altera SoCFPGA Arria10"
+	depends on ARCH_INTEL_SOCFPGA || COMPILE_TEST
+	select REGMAP_MMIO
+	help
+	  FPGA manager driver support for Altera Arria10 SoCFPGA.
+
+config ALTERA_PR_IP_CORE
+	tristate "Altera Partial Reconfiguration IP Core"
+	help
+	  Core driver support for Altera Partial Reconfiguration IP component
+
+config ALTERA_PR_IP_CORE_PLAT
+	tristate "Platform support of Altera Partial Reconfiguration IP Core"
+	depends on ALTERA_PR_IP_CORE && OF && HAS_IOMEM
+	help
+	  Platform driver support for Altera Partial Reconfiguration IP
+	  component
+
+config FPGA_MGR_ALTERA_PS_SPI
+	tristate "Altera FPGA Passive Serial over SPI"
+	depends on SPI
+	select BITREVERSE
+	help
+	  FPGA manager driver support for Altera Arria/Cyclone/Stratix
+	  using the passive serial interface over SPI.
+
+config FPGA_MGR_ALTERA_CVP
+	tristate "Altera CvP FPGA Manager"
+	depends on PCI
+	help
+	  FPGA manager driver support for Arria-V, Cyclone-V, Stratix-V,
+	  Arria 10 and Stratix10 Altera FPGAs using the CvP interface over PCIe.
+
+config FPGA_MGR_STRATIX10_SOC
+	tristate "Intel Stratix10 SoC FPGA Manager"
+	depends on (ARCH_INTEL_SOCFPGA && INTEL_STRATIX10_SERVICE)
+	help
+	  FPGA manager driver support for the Intel Stratix10 SoC.
+
+config FPGA_MGR_TS73XX
+	tristate "Technologic Systems TS-73xx SBC FPGA Manager"
+	depends on ARCH_EP93XX && MACH_TS72XX
+	help
+	  FPGA manager driver support for the Altera Cyclone II FPGA
+	  present on the TS-73xx SBC boards.
+
+config ALTERA_FREEZE_BRIDGE
+	tristate "Altera FPGA Freeze Bridge"
+	depends on FPGA_BRIDGE && HAS_IOMEM
+	help
+	  Say Y to enable drivers for Altera FPGA Freeze bridges.  A
+	  freeze bridge is a bridge that exists in the FPGA fabric to
+	  isolate one region of the FPGA from the busses while that
+	  region is being reprogrammed.
+
+config SOCFPGA_FPGA_BRIDGE
+	tristate "Altera SoCFPGA FPGA Bridges"
+	depends on ARCH_INTEL_SOCFPGA && FPGA_BRIDGE
+	help
+	  Say Y to enable drivers for FPGA bridges for Altera SOCFPGA
+	  devices.
+
+endif #FPGA_ALTERA
diff --git a/drivers/fpga/altera/Makefile b/drivers/fpga/altera/Makefile
new file mode 100644
index 0000000000000..9c86057cff110
--- /dev/null
+++ b/drivers/fpga/altera/Makefile
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+obj-$(CONFIG_ALTERA_FREEZE_BRIDGE) += altera-freeze-bridge.o
+obj-$(CONFIG_ALTERA_PR_IP_CORE) += altera-pr-ip-core.o
+obj-$(CONFIG_ALTERA_PR_IP_CORE_PLAT) += altera-pr-ip-core-plat.o
+obj-$(CONFIG_FPGA_MGR_ALTERA_CVP) += altera-cvp.o
+obj-$(CONFIG_FPGA_MGR_ALTERA_PS_SPI) += altera-ps-spi.o
+obj-$(CONFIG_FPGA_MGR_SOCFPGA) += socfpga.o
+obj-$(CONFIG_FPGA_MGR_SOCFPGA_A10) += socfpga-a10.o
+obj-$(CONFIG_FPGA_MGR_STRATIX10_SOC) += stratix10-soc.o
+obj-$(CONFIG_FPGA_MGR_TS73XX) += ts73xx-fpga.o
+obj-$(CONFIG_SOCFPGA_FPGA_BRIDGE) += altera-hps2fpga.o altera-fpga2sdram.o
diff --git a/drivers/fpga/altera-cvp.c b/drivers/fpga/altera/altera-cvp.c
similarity index 100%
rename from drivers/fpga/altera-cvp.c
rename to drivers/fpga/altera/altera-cvp.c
diff --git a/drivers/fpga/altera-fpga2sdram.c b/drivers/fpga/altera/altera-fpga2sdram.c
similarity index 100%
rename from drivers/fpga/altera-fpga2sdram.c
rename to drivers/fpga/altera/altera-fpga2sdram.c
diff --git a/drivers/fpga/altera-freeze-bridge.c b/drivers/fpga/altera/altera-freeze-bridge.c
similarity index 100%
rename from drivers/fpga/altera-freeze-bridge.c
rename to drivers/fpga/altera/altera-freeze-bridge.c
diff --git a/drivers/fpga/altera-hps2fpga.c b/drivers/fpga/altera/altera-hps2fpga.c
similarity index 100%
rename from drivers/fpga/altera-hps2fpga.c
rename to drivers/fpga/altera/altera-hps2fpga.c
diff --git a/drivers/fpga/altera-pr-ip-core-plat.c b/drivers/fpga/altera/altera-pr-ip-core-plat.c
similarity index 100%
rename from drivers/fpga/altera-pr-ip-core-plat.c
rename to drivers/fpga/altera/altera-pr-ip-core-plat.c
diff --git a/drivers/fpga/altera-pr-ip-core.c b/drivers/fpga/altera/altera-pr-ip-core.c
similarity index 100%
rename from drivers/fpga/altera-pr-ip-core.c
rename to drivers/fpga/altera/altera-pr-ip-core.c
diff --git a/drivers/fpga/altera-ps-spi.c b/drivers/fpga/altera/altera-ps-spi.c
similarity index 100%
rename from drivers/fpga/altera-ps-spi.c
rename to drivers/fpga/altera/altera-ps-spi.c
diff --git a/drivers/fpga/socfpga-a10.c b/drivers/fpga/altera/socfpga-a10.c
similarity index 100%
rename from drivers/fpga/socfpga-a10.c
rename to drivers/fpga/altera/socfpga-a10.c
diff --git a/drivers/fpga/socfpga.c b/drivers/fpga/altera/socfpga.c
similarity index 100%
rename from drivers/fpga/socfpga.c
rename to drivers/fpga/altera/socfpga.c
diff --git a/drivers/fpga/stratix10-soc.c b/drivers/fpga/altera/stratix10-soc.c
similarity index 100%
rename from drivers/fpga/stratix10-soc.c
rename to drivers/fpga/altera/stratix10-soc.c
diff --git a/drivers/fpga/ts73xx-fpga.c b/drivers/fpga/altera/ts73xx-fpga.c
similarity index 100%
rename from drivers/fpga/ts73xx-fpga.c
rename to drivers/fpga/altera/ts73xx-fpga.c
-- 
2.26.3