opencv: disable broken Intel FP16 detectionpyro-nfvaccess

With opencv-3.2, the configuration detects if the target supports
half-precision floating-point format. This fails to compile for some
Intel targets such as skylake with an error such as:
   error: '_mm_cvtph_ps' was not declared in this scope

The configuration used to work in opencv-3.1 so revert two commits to
drop the FP16 detection even though it may make opencv slower.
The only change in the configure log is:
   - FP16: Compiler support is available
   + FP16: Compiler support is not available

The patch should be dropped when a newer version of opencv that includes commit:
   https://github.com/opencv/opencv/commit/e5d9b608c47d54e43496041595025fa282fa9de5
is available. Backporting that fix was complicated.

Signed-off-by: Randy MacLeod <Randy.MacLeod@windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/meta-oe/recipes-support/opencv/opencv_3.2.bb b/meta-oe/recipes-support/opencv/opencv_3.2.bb
index 2cff212ab..98b6b0652 100644
--- a/meta-oe/recipes-support/opencv/opencv_3.2.bb
+++ b/meta-oe/recipes-support/opencv/opencv_3.2.bb
@@ -27,6 +27,8 @@ SRC_URI = "git://github.com/opencv/opencv.git;name=opencv \
     file://fixpkgconfig.patch \
     file://uselocalxfeatures.patch;patchdir=../contrib/ \
     file://useoeprotobuf.patch;patchdir=../contrib/ \
+    file://0001-Revert-cuda-fix-fp16-compilation.patch \
+    file://0002-Revert-check-FP16-build-condition-correctly.patch \
 "
 
 PV = "3.2+git${SRCPV}"