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bus: mhi: Add support for MHI DTR signaling driver

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DTR signaling client driver needs certain entries in the MHI
device structure and an mhi_callback entry. Add those to support
DTR signaling.

Change-Id: Id74395348200e84bc9af0b251799c06eeb738193
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Signed-off-by: Lazarus Motha <quic_lmotha@quicinc.com>
This commit is contained in:
Bhaumik Bhatt 2021-01-22 10:52:03 -08:00 committed by Gerrit - the friendly Code Review server
parent 141a2b8fb2
commit 9446d19cc3
1 changed files with 4 additions and 0 deletions
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4
include/linux/mhi.h
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@ -38,6 +38,7 @@ struct mhi_buf_info;
* @MHI_CB_FATAL_ERROR: MHI device entered fatal error state
* @MHI_CB_BW_REQ: Received a bandwidth switch request from device
* @MHI_CB_FALLBACK_IMG: MHI device was loaded with the provided fallback image
* @MHI_CB_DTR_SIGNAL: DTR signaling update
*/
enum mhi_callback {
MHI_CB_IDLE,
@ -50,6 +51,7 @@ enum mhi_callback {
MHI_CB_FATAL_ERROR,
MHI_CB_BW_REQ,
MHI_CB_FALLBACK_IMG,
MHI_CB_DTR_SIGNAL,
};
/**
@ -495,6 +497,7 @@ struct mhi_controller {
* @dl_chan_id: MHI channel id for DL transfer
* @ul_event_id: MHI event ring id for DL transfer
* @dev_wake: Device wakeup counter
* @tiocm: Device current terminal settings
*/
struct mhi_device {
const struct mhi_device_id *id;
@ -509,6 +512,7 @@ struct mhi_device {
int dl_chan_id;
int dl_event_id;
u32 dev_wake;
u32 tiocm;
};
/**