linux-kernel - [PATCH] Make FPGA a menuconfig to ease disabling it all

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Date:   Fri, 14 Apr 2017 11:06:56 +0200
From:   Vincent Legoll <vincent.legoll@...il.com>
To:     linux-kernel@...r.kernel.org, atull@...nsource.altera.com,
        moritz.fischer@...us.com, linux-fpga@...r.kernel.org
Cc:     Vincent Legoll <vincent.legoll@...il.com>
Subject: [PATCH] Make FPGA a menuconfig to ease disabling it all

No need to get into the submenu to disable all FPGA-related config entries

Signed-off-by: Vincent Legoll <vincent.legoll@...il.com>
---
 drivers/fpga/Kconfig | 21 ++++++++-------------
 1 file changed, 8 insertions(+), 13 deletions(-)

diff --git a/drivers/fpga/Kconfig b/drivers/fpga/Kconfig
index ce861a2..fa1a95e 100644
--- a/drivers/fpga/Kconfig
+++ b/drivers/fpga/Kconfig
@@ -2,32 +2,30 @@
 # FPGA framework configuration
 #
 
-menu "FPGA Configuration Support"
-
-config FPGA
+menuconfig FPGA
 	tristate "FPGA Configuration Framework"
 	help
 	  Say Y here if you want support for configuring FPGAs from the
 	  kernel.  The FPGA framework adds a FPGA manager class and FPGA
 	  manager drivers.
 
-if FPGA
-
 config FPGA_REGION
 	tristate "FPGA Region"
-	depends on OF && FPGA_BRIDGE
+	depends on FPGA && OF && FPGA_BRIDGE
 	help
 	  FPGA Regions allow loading FPGA images under control of
 	  the Device Tree.
 
 config FPGA_MGR_SOCFPGA
 	tristate "Altera SOCFPGA FPGA Manager"
+	depends on FPGA
 	depends on ARCH_SOCFPGA || COMPILE_TEST
 	help
 	  FPGA manager driver support for Altera SOCFPGA.
 
 config FPGA_MGR_SOCFPGA_A10
 	tristate "Altera SoCFPGA Arria10"
+	depends on FPGA
 	depends on ARCH_SOCFPGA || COMPILE_TEST
 	select REGMAP_MMIO
 	help
@@ -35,6 +33,7 @@ config FPGA_MGR_SOCFPGA_A10
 
 config FPGA_MGR_ZYNQ_FPGA
 	tristate "Xilinx Zynq FPGA"
+	depends on FPGA
 	depends on ARCH_ZYNQ || COMPILE_TEST
 	depends on HAS_DMA
 	help
@@ -42,27 +41,23 @@ config FPGA_MGR_ZYNQ_FPGA
 
 config FPGA_BRIDGE
 	tristate "FPGA Bridge Framework"
-	depends on OF
+	depends on FPGA && OF
 	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_SOCFPGA && FPGA_BRIDGE
+	depends on FPGA && ARCH_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 ARCH_SOCFPGA && FPGA_BRIDGE
+	depends on FPGA && ARCH_SOCFPGA && FPGA_BRIDGE
 	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.
-
-endif # FPGA
-
-endmenu
-- 
2.9.3