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Commit 177b9dd5 authored by Ravi Gummadidala's avatar Ravi Gummadidala
Browse files

msm: ipa: add an API to check if IPA driver is ready 



Clients can use this API to ensure IPA driver was
initialized successfully before invoking any other IPA APIs.

Change-Id: Ib4a8b62a2c9a2746db1090f540cccd01bae74272
Signed-off-by: default avatarRavi Gummadidala <rgummadi@codeaurora.org>
parent 47d53bf2

drivers/platform/msm/ipa/ipa_utils.c

+12 −0
Original line number Diff line number Diff line
@@ -3606,3 +3606,15 @@ fail_alloc_pkt_init: 
fail_alloc_desc:

	return res;

}



/**

 * ipa_is_ready() - check if IPA module was initialized

 * successfully

 *

 * Return value: true for yes; false for no

 */

bool ipa_is_ready(void)

{

	return (ipa_ctx != NULL) ? true : false;

}

EXPORT_SYMBOL(ipa_is_ready);

include/linux/ipa.h

+7 −0
Original line number Diff line number Diff line
@@ -953,6 +953,8 @@ int ipa_remove_interrupt_handler(enum ipa_irq_type interrupt); 


int ipa_get_ep_mapping(enum ipa_client_type client);



bool ipa_is_ready(void);



#else /* CONFIG_IPA */



/*
@@ -1421,6 +1423,11 @@ static inline int ipa_get_ep_mapping(enum ipa_client_type client) 
{

	return -EPERM;

}



static inline bool ipa_is_ready(void)

{

	return false;

}

#endif /* CONFIG_IPA*/



#endif /* _IPA_H_ */