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Commit 365d79fc authored by Alex Elder's avatar Alex Elder Committed by Akash Choudhari
Browse files

greybus: don't key on an enumerated constant 



The symbol PWMF_ENABLED is defined via an enum, which is not defined
at the time the preprocessor passes through "kernel_ver.h".  So we
can't use it in an #if statement expression.

Use the Linux kernel version instead.

Change-Id: Id427224b1dfecfd886fcdae89c4bcf711b616439
Signed-off-by: default avatarAlex Elder <elder@linaro.org>
parent 8fb76c3c

drivers/staging/greybus/kernel_ver.h

+7 −1
Original line number Diff line number Diff line
@@ -328,7 +328,13 @@ static inline void reinit_completion(struct completion *x) 
}

#endif



#ifdef PWMF_ENABLED

#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 2, 0)

#include <linux/pwm.h>

/*

 * pwm_is_enabled() was first defined in 4.2-rc1 (first commit!).

 * PWMF_ENABLED was first defined in 3.5-rc2, but our code is

 * always newer than that.

*/

static inline bool pwm_is_enabled(const struct pwm_device *pwm)

{

	return test_bit(PWMF_ENABLED, &pwm->flags);