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Commit 043cae74 authored by Michael Adisumarta's avatar Michael Adisumarta
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msm: ipa: device assisted low power states support in IPA 



This change supports device assisted low power modes -M1/M2 states
in IPA. For M1/M2 states, GSI is continued to be in poll mode where
as for M3 state GSI is moved to doorbell mode.

Change-Id: I48a7c9f2c27da0be69a6bb50dfec0a542e46caec
Signed-off-by: default avatarMichael Adisumarta <madisuma@codeaurora.org>
parent 8543fd31

include/linux/ipa_mhi.h

+17 −1
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */

/*

 * Copyright (c) 2017-2019, The Linux Foundation. All rights reserved.

 * Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.

 */



#ifndef IPA_MHI_H_
@@ -22,6 +22,14 @@ enum ipa_mhi_event_type { 
	IPA_MHI_EVENT_MAX,

};



enum ipa_mhi_mstate {

	IPA_MHI_STATE_M0,

	IPA_MHI_STATE_M1,

	IPA_MHI_STATE_M2,

	IPA_MHI_STATE_M3,

	IPA_MHI_STATE_M_MAX

};



typedef void (*mhi_client_cb)(void *priv, enum ipa_mhi_event_type event,

	unsigned long data);
@@ -111,6 +119,8 @@ int ipa_mhi_resume(void); 


void ipa_mhi_destroy(void);



int ipa_mhi_update_mstate(enum ipa_mhi_mstate mstate_info);



#else /* IS_ENABLED(CONFIG_IPA3) */



static inline int ipa_mhi_init(struct ipa_mhi_init_params *params)
@@ -149,6 +159,12 @@ static inline void ipa_mhi_destroy(void) 


}



static inline int ipa_mhi_update_mstate

			(enum ipa_mhi_mstate mstate_info)

{

	return -EPERM;

}



#endif /* IS_ENABLED(CONFIG_IPA3) */



#endif /* IPA_MHI_H_ */