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fingerprint: Only link FPC libraries if there's a FPC sensor 

If a board doesn't have a FPC sensor, don't build FPC.

BRANCH=none
BUG=b:171812737, b:175158241
TEST=Change the sensor config on nocturne_fp to ELAN and build with
     ELAN's driver and library.

Signed-off-by: Yicheng Li <yichengli@chromium.org>
Change-Id: I90eca478b6eadfbd373154c52e13f734473abfdf
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2591868
Commit-Queue: Tom Hughes <tomhughes@chromium.org>
Reviewed-by: Tom Hughes <tomhughes@chromium.org>
This commit is contained in:
Yicheng Li 2020-12-14 16:25:50 -08:00 committed by Commit Bot
parent 470074fc8a
commit 11dda529f9
1 changed files with 6 additions and 0 deletions
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6
driver/fingerprint/fpc/build.mk
View File

@ -7,6 +7,10 @@
# Note that this variable includes the trailing "/"
_fpc_cur_dir:=$(dir $(lastword $(MAKEFILE_LIST)))
# Only build if FPC sensor is configured.
ifneq (,$(filter rw,$(CONFIG_FP_SENSOR_FPC1145) $(CONFIG_FP_SENSOR_FPC1025) \
$(CONFIG_FP_SENSOR_FPC1035)))
ifeq ($(CONFIG_FP_SENSOR_FPC1145),rw)
include $(_fpc_cur_dir)libfp/build.mk
else ifeq ($(CONFIG_FP_SENSOR_FPC1025),rw)
@ -22,3 +26,5 @@ dirs-rw+="$(_fpc_cur_dir)"
# Only build these objects for the RW image
all-obj-rw+=$(_fpc_cur_dir)fpc_sensor.o
endif
endif