kernel-module-imx-gpu-viv: add new package

This is the Vivante kernel driver split from the kernel source code in
order to make it possible to be used in any kernel source since 3.10.53.

The driver source code provided by Freescale needs fixes so the
community forked the code to allow faster development and easier
integration of fixes from the community.

This patch is based on the Yocto equivalent:
https://github.com/Freescale/meta-fsl-arm/commit/32cf391
https://github.com/Freescale/meta-fsl-arm/commit/4249193

This package has been tested with the following commands:
 # modprobe galcore
 # cd /usr/share/examples/viv_samples/vdk/
 # ./tutorial7

Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

linux/linux.mk

@@ -251,6 +251,8 @@ define LINUX_KCONFIG_FIXUP_CMDS
 		$(call KCONFIG_ENABLE_OPT,CONFIG_NF_CONNTRACK_MARK,$(@D)/.config))
 	$(if $(BR2_LINUX_KERNEL_APPENDED_DTB),
 		$(call KCONFIG_ENABLE_OPT,CONFIG_ARM_APPENDED_DTB,$(@D)/.config))
+	$(if $(BR2_PACKAGE_KERNEL_MODULE_IMX_GPU_VIV),
+		$(call KCONFIG_DISABLE_OPT,CONFIG_MXC_GPU_VIV,$(@D)/.config))
 endef
 
 ifeq ($(BR2_LINUX_KERNEL_DTS_SUPPORT),y)

package/freescale-imx/Config.in

@@ -52,6 +52,7 @@ source "package/freescale-imx/libz160/Config.in"
 endif
 if BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX6Q
 source "package/freescale-imx/imx-gpu-viv/Config.in"
+source "package/freescale-imx/kernel-module-imx-gpu-viv/Config.in"
 endif
 
 endif

package/freescale-imx/kernel-module-imx-gpu-viv/Config.in

@@ -0,0 +1,14 @@
+comment "kernel-module-imx-gpu-viv needs a Linux kernel to be built"
+	depends on !BR2_LINUX_KERNEL
+
+config BR2_PACKAGE_KERNEL_MODULE_IMX_GPU_VIV
+	bool "kernel-module-imx-gpu-viv"
+	depends on BR2_LINUX_KERNEL
+	help
+	  Kernel loadable module for Vivante GPU.
+
+	  This package uses an exact copy of the GPU kernel driver source code
+	  of the same version as base and include fixes and improvements
+	  developed by FSL Community
+
+	  https://github.com/Freescale/kernel-module-imx-gpu-viv

package/freescale-imx/kernel-module-imx-gpu-viv/kernel-module-imx-gpu-viv.hash

@@ -0,0 +1,2 @@
+# locally computed
+sha256 955037fd86d31cdddaed15c254f377f4b30a8abcf5a5e4f9185bd660ff14b7c3  kernel-module-imx-gpu-viv-eeeb23c0fb1cee01318088d417025263479c44ac.tar.gz

package/freescale-imx/kernel-module-imx-gpu-viv/kernel-module-imx-gpu-viv.mk

@@ -0,0 +1,20 @@
+################################################################################
+#
+# kernel-module-imx-gpu-viv
+#
+################################################################################
+
+KERNEL_MODULE_IMX_GPU_VIV_VERSION = eeeb23c0fb1cee01318088d417025263479c44ac
+KERNEL_MODULE_IMX_GPU_VIV_SITE = \
+	$(call github,Freescale,kernel-module-imx-gpu-viv,$(KERNEL_MODULE_IMX_GPU_VIV_VERSION))
+KERNEL_MODULE_IMX_GPU_VIV_LICENSE = GPLv2
+KERNEL_MODULE_IMX_GPU_VIV_LICENSE_FILES = COPYING
+
+KERNEL_MODULE_IMX_GPU_VIV_MODULE_MAKE_OPTS = \
+	AQROOT=$(@D)/kernel-module-imx-gpu-viv-src \
+	KERNEL_DIR=$(LINUX_DIR)
+
+KERNEL_MODULE_IMX_GPU_VIV_MODULE_SUBDIRS = kernel-module-imx-gpu-viv-src
+
+$(eval $(kernel-module))
+$(eval $(generic-package))