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msm: dba: define null function to register client

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All clients need to call register API exposed by DBA module to check
if the down stream transmitter driver is configured or not. In case
DBA is not enabled, define a null register function which returns
a NULL pointer to let the clients know of non availability of DBA.

Change-Id: I2b6066babe5a7e464a31752720da8f299997e977
Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>
Signed-off-by: Siddharth Zaveri <szaveri@codeaurora.org>
This commit is contained in:
Ajay Singh Parmar 2015-05-18 11:09:42 -07:00 • committed by David Keitel
parent e58bc0985b
commit 2ff2acc7cf
1 changed files with 7 additions and 0 deletions
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7
include/video/msm_dba.h
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@ -487,8 +487,15 @@ struct msm_dba_ops {
* chip. If Successful, this will return a pointer that should be used as a
* handle for all subsequent function calls.
*/
#ifdef CONFIG_MSM_DBA
void *msm_dba_register_client(struct msm_dba_reg_info *info,
struct msm_dba_ops *ops);
#else
static inline void *msm_dba_register_client(struct msm_dba_reg_info *info,
struct msm_dba_ops *ops) {
return NULL;
}
#endif
/**
* msm_dba_deregister_client() - Allows client to de-register with the driver.