package/fbtft: remove package

The fbtft linux extension was only needed for very old kernels (<4.0)
that are no longer available in Buildroot.

Let's therefore remove it.

Signed-off-by: Titouan Christophe <titouan.christophe@mind.be>
Signed-off-by: Julien Olivain <ju.o@free.fr>

Config.in.legacy

@@ -146,6 +146,13 @@ endif
 
 comment "Legacy options removed in 2025.11"
 
+config BR2_LINUX_KERNEL_EXT_FBTFT
+	bool "FB TFT drivers are deprecated"
+	select BR2_LEGACY
+	help
+	  FB TFT drivers were only needed for linux kernels until v3.19,
+	  since v4.0 the drivers are included in the staging area.
+
 config BR2_PACKAGE_DMENU_WAYLAND
 	bool "dmenu-wayland has been removed"
 	select BR2_LEGACY

docs/manual/adding-packages-linux-kernel-spec-infra.adoc

@@ -99,8 +99,7 @@ tree. The Buildroot's Linux kernel extensions infrastructure provides
 a simple solution to automatically do this, just after the kernel
 sources are extracted and before the kernel patches are
 applied. Examples of extensions packaged using this mechanism are the
-real-time extensions Xenomai and RTAI, as well as the set of
-out-of-tree LCD screens drivers +fbtft+.
+real-time extensions Xenomai and RTAI.
 
 Let's look at an example on how to add a new Linux extension +foo+.
 

linux/Config.ext.in

@@ -55,27 +55,6 @@ config BR2_LINUX_KERNEL_EXT_RTAI
 	help
 	  RTAI Kernel part.
 
-#-------------------------------------------------------------------------------
-# fbtft
-config BR2_LINUX_KERNEL_EXT_FBTFT
-	bool "FB TFT drivers"
-	select BR2_PACKAGE_FBTFT
-	help
-	  Linux Framebuffer drivers for small TFT LCD display modules,
-	  e.g. Adafruit PiTFT displays for Raspberry Pi (this extra
-	  package is only needed for linux kernels until v3.19, since
-	  v4.0 the drivers are included in the staging area).
-
-	  To enable fbtft, e.g. for Adafruit 2.8 PiTFT, enable the
-	  following kernel configurations:
-	  - CONFIG_SPI
-	  - CONFIG_GPIOLIB
-	  - CONFIG_FB
-	  - CONFIG_FB_TFT
-	  - CONFIG_FB_TFT_ILI9341
-
-	  https://github.com/notro/fbtft
-
 # kernel extensions from br2-external trees, if any
 source "$BR2_BASE_DIR/.br2-external.in.linux"
 

linux/linux-ext-fbtft.mk

@@ -1,22 +0,0 @@
-################################################################################
-#
-# Patch the linux kernel with fbtft extension
-#
-################################################################################
-
-LINUX_EXTENSIONS += fbtft
-
-# for linux >= 3.15 install to drivers/video/fbdev/fbtft
-# for linux < 3.15 install to drivers/video/fbtft
-define FBTFT_PREPARE_KERNEL
-	if [ -e $(LINUX_DIR)/drivers/video/fbdev ]; then \
-		dest=drivers/video/fbdev ; \
-	else \
-		dest=drivers/video ; \
-	fi ; \
-	mkdir -p $(LINUX_DIR)/$${dest}/fbtft; \
-	cp -dpfr $(FBTFT_DIR)/* $(LINUX_DIR)/$${dest}/fbtft/ ; \
-	echo "source \"$${dest}/fbtft/Kconfig\"" \
-		>> $(LINUX_DIR)/$${dest}/Kconfig ; \
-	echo 'obj-y += fbtft/' >> $(LINUX_DIR)/$${dest}/Makefile
-endef

package/Config.in

@@ -505,7 +505,6 @@ endmenu
 	source "package/eudev/Config.in"
 	source "package/evemu/Config.in"
 	source "package/evtest/Config.in"
-	source "package/fbtft/Config.in"
 	source "package/flashrom/Config.in"
 	source "package/fmtools/Config.in"
 	source "package/freeipmi/Config.in"

package/fbtft/Config.in

@@ -1,13 +0,0 @@
-# Prompt-less option, because this package is not doing anything
-# except downloading the FB TFT sources. The real work is done by a
-# Linux extension.
-config BR2_PACKAGE_FBTFT
-	bool
-	depends on BR2_LINUX_KERNEL
-	help
-	  Linux Framebuffer drivers for small TFT LCD display modules,
-	  e.g. Adafruit PiTFT displays for Raspberry Pi.
-
-	  This is only the download helper for the kernel patch.
-
-	  https://github.com/notro/fbtft

package/fbtft/fbtft.hash

@@ -1,3 +0,0 @@
-# locally computed
-sha256  0e81de89fdd7ab810716fc0549e767527f342e829309dee5c2cca1e9d1728770  fbtft-274035404701245e7491c0c6471c5b72ade4d491.tar.gz
-sha256  a9ca80d65a5ef10fe614a6c1e8c8d4d3b96637e8855a96c7cf0fa438526097a7  fbtft-core.c

package/fbtft/fbtft.mk

@@ -1,12 +0,0 @@
-################################################################################
-#
-# fbtft
-#
-################################################################################
-
-FBTFT_VERSION = 274035404701245e7491c0c6471c5b72ade4d491
-FBTFT_SITE = $(call github,notro,fbtft,$(FBTFT_VERSION))
-FBTFT_LICENSE = GPL-2.0
-FBTFT_LICENSE_FILES = fbtft-core.c
-
-$(eval $(generic-package))

utils/checksymbolslib/test_makefile.py

@@ -250,9 +250,6 @@ check_filename = [
     ('fs/cramfs/cramfs.mk',
      'fs/cramfs/cramfs.mk',
      True),
-    ('linux/linux-ext-fbtft.mk',
-     'linux/linux-ext-fbtft.mk',
-     True),
     ('package/ace/ace.mk',
      'package/ace/ace.mk',
      True),