package/linux: drop useless intermediate DTS booleans

Just use whatever the user specified in the list. An empty list means no
DTS was specified.

No need to add legacy option, as the behaviour does not change.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Simon van der Veldt <simon.vanderveldt@gmail.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Peter Korsgaard <peter@korsgaard.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Tested-by: Joshua Henderson <joshua.henderson@microchip.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

linux/Config.in

@@ -363,35 +363,19 @@ config BR2_LINUX_KERNEL_DTB_IS_SELF_BUILT
 config BR2_LINUX_KERNEL_APPENDED_DTB
 	bool
 
-config BR2_LINUX_KERNEL_USE_INTREE_DTS
-	bool "Use a device tree present in the kernel"
-	help
-	  Use a device tree source distributed with
-	  the kernel sources. The dts files are located
-	  in the arch/<arch>/boot/dts folder.
-
 config BR2_LINUX_KERNEL_INTREE_DTS_NAME
-	string "Device Tree Source file names"
-	depends on BR2_LINUX_KERNEL_USE_INTREE_DTS
+	string "In-tree Device Tree Source file names"
 	help
-	  Name of the device tree source file, without
+	  Name of in-tree device tree source file, without
 	  the trailing .dts. You can provide a list of
 	  dts files to build, separated by spaces.
 
-config BR2_LINUX_KERNEL_USE_CUSTOM_DTS
-	bool "Use a custom device tree file"
-	help
-	  Use a custom device tree file, i.e, a device
-	  tree file that does not belong to the kernel
-	  source tree.
-
 config BR2_LINUX_KERNEL_CUSTOM_DTS_PATH
-	string "Device Tree Source file paths"
-	depends on BR2_LINUX_KERNEL_USE_CUSTOM_DTS
+	string "Out-of-tree Device Tree Source file paths"
 	help
-	  Path to the device tree source files. You can
-	  provide a list of dts paths to copy and build,
-	  separated by spaces.
+	  Path to to out-of-tree device tree source files.
+	  You can provide a list of dts paths to copy and
+	  build, separated by spaces.
 
 endif
 

linux/linux.mk

@@ -125,17 +125,13 @@ endif
 # going to be installed in the target filesystem.
 LINUX_VERSION_PROBED = `$(MAKE) $(LINUX_MAKE_FLAGS) -C $(LINUX_DIR) --no-print-directory -s kernelrelease 2>/dev/null`
 
-ifeq ($(BR2_LINUX_KERNEL_USE_INTREE_DTS),y)
 KERNEL_DTS_NAME += $(call qstrip,$(BR2_LINUX_KERNEL_INTREE_DTS_NAME))
-endif
 
-ifeq ($(BR2_LINUX_KERNEL_USE_CUSTOM_DTS),y)
 # We keep only the .dts files, so that the user can specify both .dts
 # and .dtsi files in BR2_LINUX_KERNEL_CUSTOM_DTS_PATH. Both will be
 # copied to arch/<arch>/boot/dts, but only the .dts files will
 # actually be generated as .dtb.
 KERNEL_DTS_NAME += $(basename $(filter %.dts,$(notdir $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_DTS_PATH)))))
-endif
 
 KERNEL_DTBS = $(addsuffix .dtb,$(KERNEL_DTS_NAME))