freescale-imx: add BR2_PACKAGE_FREESCALE_IMX_HAS_VPU config

Since the imx-vpu package build is skipped if the platform doesn't
have a VPU, libraries dependent on the package such as libimxvpuapi
can fail although the imx-vpu package build went "fine".

This patch therefore adds a BR2_PACKAGE_FREESCALE_IMX_HAS_VPU config
which is used in every package selecting imx-vpu directly or indrectly.

It fixes the following build errors:
http://autobuild.buildroot.net/results/892/8924b17f3aa5eba1a8016d84d4478ecb0a96b236/
http://autobuild.buildroot.net/results/86f/86fef2a30065d5bc0d7755706e9ca3332426834d/
http://autobuild.buildroot.net/results/b47/b47eb03e93e2f1af85caebb707f7b4667f7e3d74/
http://autobuild.buildroot.net/results/4c9/4c9b22b33533132fd9f88917cc341ae2c2e171a8/
http://autobuild.buildroot.net/results/a8b/a8b33bfd099d9b9cd383cc568ea70846eb13c34d/

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

package/freescale-imx/Config.in

@@ -42,6 +42,13 @@ config BR2_PACKAGE_FREESCALE_IMX_PLATFORM
 	default "IMX53" if BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX53
 	default "IMX6Q" if BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX6Q
 
+config BR2_PACKAGE_FREESCALE_IMX_HAS_VPU
+	bool
+	default y if BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX27ADS || \
+		BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX51 || \
+		BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX53 || \
+		BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX6Q
+
 source "package/freescale-imx/imx-kobs/Config.in"
 source "package/freescale-imx/imx-lib/Config.in"
 source "package/freescale-imx/imx-vpu/Config.in"

package/freescale-imx/imx-vpu/Config.in

@@ -1,6 +1,11 @@
+comment "imx-vpu needs an i.MX platform with VPU support"
+	depends on BR2_arm
+	depends on !BR2_PACKAGE_FREESCALE_IMX_HAS_VPU
+
 config BR2_PACKAGE_IMX_VPU
 	bool "imx-vpu"
 	depends on BR2_arm # Only relevant for i.MX
+	depends on BR2_PACKAGE_FREESCALE_IMX_HAS_VPU
 	select BR2_PACKAGE_FIRMWARE_IMX
 	help
 	  Library of userspace helpers specific for the Freescale i.MX

package/gstreamer/gst-fsl-plugins/Config.in

@@ -11,9 +11,8 @@ config BR2_PACKAGE_GST_FSL_PLUGINS
 	depends on BR2_arm # Only relevant for i.MX
 	depends on BR2_TOOLCHAIN_USES_GLIBC # libfslcodec
 	select BR2_PACKAGE_GST_PLUGINS_BASE
-	select BR2_PACKAGE_LIBFSLVPUWRAP
+	select BR2_PACKAGE_LIBFSLVPUWRAP if BR2_PACKAGE_FREESCALE_IMX_HAS_VPU
 	select BR2_PACKAGE_IMX_LIB
-	select BR2_PACKAGE_IMX_VPU
 	select BR2_PACKAGE_LIBFSLPARSER
 	select BR2_PACKAGE_LIBFSLCODEC
 	select BR2_PACKAGE_FREESCALE_IMX

package/gstreamer/gst-fsl-plugins/gst-fsl-plugins.mk

@@ -16,7 +16,11 @@ GST_FSL_PLUGINS_INSTALL_STAGING = YES
 GST_FSL_PLUGINS_AUTORECONF = YES
 
 GST_FSL_PLUGINS_DEPENDENCIES += host-pkgconf gstreamer gst-plugins-base \
-	libfslvpuwrap imx-lib imx-vpu libfslparser libfslcodec
+	imx-lib libfslparser libfslcodec
+
+ifeq ($(BR2_PACKAGE_FREESCALE_IMX_HAS_VPU),y)
+GST_FSL_PLUGINS_DEPENDENCIES += libfslvpuwrap
+endif
 
 GST_FSL_PLUGINS_CONF_ENV = \
 	PLATFORM=$(BR2_PACKAGE_GST_FSL_PLUGINS_PLATFORM) \

package/libfslvpuwrap/Config.in

@@ -2,11 +2,15 @@ comment "libfslvpuwrap needs an imx-specific Linux kernel to be built"
 	depends on BR2_arm
 	depends on !BR2_LINUX_KERNEL
 
+comment "libfslvpuwrap needs an i.MX platform with VPU support"
+	depends on BR2_arm
+	depends on BR2_LINUX_KERNEL && !BR2_PACKAGE_FREESCALE_IMX_HAS_VPU
+
 config BR2_PACKAGE_LIBFSLVPUWRAP
 	bool "libfslvpuwrap"
 	depends on BR2_LINUX_KERNEL
 	depends on BR2_arm # Only relevant for i.MX
-	select BR2_PACKAGE_FREESCALE_IMX
+	depends on BR2_PACKAGE_FREESCALE_IMX_HAS_VPU
 	select BR2_PACKAGE_IMX_VPU
 	help
 	  Wrapper library for the vpu library, giving it a different API.

package/libimxvpuapi/Config.in

@@ -1,7 +1,11 @@
+comment "libimxvpuapi needs an i.MX platform with VPU support"
+	depends on BR2_arm
+	depends on !BR2_PACKAGE_FREESCALE_IMX_HAS_VPU
+
 config BR2_PACKAGE_LIBIMXVPUAPI
 	bool "libimxvpuapi"
 	depends on BR2_arm # Only relevant for i.MX
-	select BR2_PACKAGE_FREESCALE_IMX
+	depends on BR2_PACKAGE_FREESCALE_IMX_HAS_VPU
 	select BR2_PACKAGE_IMX_VPU
 	help
 	  This library provides an API for using the iMX6 VPU video