add fbtft module for spi display

bsp/Kconfig

@@ -6,4 +6,7 @@ source "bsp/platform/Kconfig"
 source "bsp/platform/Kconfig.debug"
 source "bsp/drivers/Kconfig"
 
+# Avaota SBC Modules
+source "bsp/modules/Kconfig"
+
 endmenu

bsp/Makefile

@@ -1,3 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
 
-obj-y += drivers/
+obj-y += drivers/
+obj-y += modules/

bsp/drivers/Makefile

@@ -108,4 +108,3 @@ obj-y += fs/
 
 #awlink
 obj-y += awlink/
-

bsp/modules/Kconfig

@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# spi tft
+source "bsp/modules/fbtft/Kconfig"

bsp/modules/Makefile

@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# spi tft
+obj-y += fbtft/

bsp/modules/fbtft/Kconfig

@@ -0,0 +1,21 @@
+# SPDX-License-Identifier: GPL-2.0
+menuconfig AVA_FB_TFT
+	tristate "Support for onboard SPI TFT LCD display modules"
+	depends on FB && SPI
+	depends on GPIOLIB || COMPILE_TEST
+	select FB_SYS_FILLRECT
+	select FB_SYS_COPYAREA
+	select FB_SYS_IMAGEBLIT
+	select FB_SYS_FOPS
+	select FB_DEFERRED_IO
+	select FB_BACKLIGHT
+
+config AVA_FB_TFT_ST7789V
+	tristate "FB driver for the ST7789V LCD Controller"
+	depends on AVA_FB_TFT
+	help
+	  This enables generic framebuffer support for the Sitronix ST7789V
+	  display controller. The controller is intended for small color
+	  displays with a resolution of up to 320x240 pixels.
+
+	  Say Y if you have such a display that utilizes this controller.

bsp/modules/fbtft/Makefile

@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
+# Core module
+obj-$(CONFIG_AVA_FB_TFT)             += fbtft.o
+fbtft-y                          += fbtft-core.o fbtft-sysfs.o fbtft-bus.o fbtft-io.o
+
+# drivers
+obj-$(CONFIG_AVA_FB_TFT_ST7789V)     += fb_st7789v.o

bsp/modules/fbtft/README

@@ -0,0 +1,32 @@
+  FBTFT
+=========
+
+Linux Framebuffer drivers for small TFT LCD display modules.
+The module 'fbtft' makes writing drivers for some of these displays very easy.
+
+Development is done on a Raspberry Pi running the Raspbian "wheezy" distribution.
+
+INSTALLATION
+  Download kernel sources
+
+  From Linux 3.15
+    cd drivers/video/fbdev/fbtft
+    git clone https://github.com/notro/fbtft.git
+
+    Add to drivers/video/fbdev/Kconfig:   source "drivers/video/fbdev/fbtft/Kconfig"
+    Add to drivers/video/fbdev/Makefile:  obj-y += fbtft/
+
+  Before Linux 3.15
+    cd drivers/video
+    git clone https://github.com/notro/fbtft.git
+
+    Add to drivers/video/Kconfig:   source "drivers/video/fbtft/Kconfig"
+    Add to drivers/video/Makefile:  obj-y += fbtft/
+
+  Enable driver(s) in menuconfig and build the kernel
+
+
+See wiki for more information: https://github.com/notro/fbtft/wiki
+
+
+Source: https://github.com/notro/fbtft/

bsp/modules/fbtft/TODO

@@ -0,0 +1,3 @@
+* convert all these over to drm_simple_display_pipe and submit for inclusion
+  into the DRM subsystem under drivers/gpu/drm - fbdev doesn't take any new
+  drivers anymore.