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| author | Rui Miguel Silva <rui.silva@linaro.org> | 2015-08-14 13:58:18 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@google.com> | 2015-08-14 14:41:06 -0700 |
| commit | 13fcfbb6c5bbd7aee7e9980313dc29469357c5cd (patch) | |
| tree | f98bcb57c363cae66fead5d8f96b2ad530ede047 /drivers/staging | |
| parent | dc366f8e397c41ba582821e24abdc2bc4ae80a47 (diff) | |
greybus: makefile: add needed config options for lights
Add a function to check kernel versions and append the necessary
options to support LEDS_CLASS, LEDS_CLASS_FLASH and V4L2_FLASH_LED_CLASS
depending of the kernel version.
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/greybus/Makefile | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/staging/greybus/Makefile b/drivers/staging/greybus/Makefile index 11627035222c..3006edef7e7b 100644 --- a/drivers/staging/greybus/Makefile +++ b/drivers/staging/greybus/Makefile @@ -49,13 +49,26 @@ INSTALL_MOD_PATH ?= /.. PWD := $(shell pwd) # kernel config option that shall be enable -CONFIG_OPTIONS_ENABLE := SYSFS SPI USB SND_SOC MMC +CONFIG_OPTIONS_ENABLE := SYSFS SPI USB SND_SOC MMC LEDS_CLASS # kernel config option that shall be disable CONFIG_OPTIONS_DISABLE := # this only run in kbuild part of the makefile ifneq ($(KERNELRELEASE),) +# This function returns the argument version if current kernel version is minor +# than the passed version, return 1 if equal or the current kernel version if it +# is greater than argument version. +kvers_cmp=$(shell [[ "$(KERNELVERSION)" == "$(1)" ]] && echo 1 || echo -e "$(1)\n$(KERNELVERSION)" | sort -V | tail -1) + +ifneq ($(call kvers_cmp,"3.19.0"),3.19.0) + CONFIG_OPTIONS_ENABLE += LEDS_CLASS_FLASH +endif + +ifneq ($(call kvers_cmp,"4.2.0"),4.2.0) + CONFIG_OPTIONS_ENABLE += V4L2_FLASH_LED_CLASS +endif + $(foreach opt,$(CONFIG_OPTIONS_ENABLE),$(if $(CONFIG_$(opt)),, \ $(error CONFIG_$(opt) is disabled in the kernel configuration and must be enable \ to continue compilation))) |