Introduce a helper function to determine whether the device is in a
powered ON state and resides in one of the active MHI states. This will
allow for some use cases in reading debugfs entries.
Signed-off-by: Bhaumik Bhatt <bbh...@codeaurora.org>
Reviewed-by: Jeffrey Hugo <jh...@codeaurora.org>
---
drivers/bus/mhi/core/internal.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/bus/mhi/core/internal.h b/drivers/bus/mhi/core/internal.h
index b1f640b..2f18be7 100644
--- a/drivers/bus/mhi/core/internal.h
+++ b/drivers/bus/mhi/core/internal.h
@@ -599,6 +599,11 @@ int mhi_queue_state_transition(struct mhi_controller
*mhi_cntrl,
int __mhi_device_get_sync(struct mhi_controller *mhi_cntrl);
int mhi_send_cmd(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan,
enum mhi_cmd_type cmd);
+static inline bool mhi_is_active(struct mhi_controller *mhi_cntrl)
+{
+ return (mhi_cntrl->dev_state >= MHI_STATE_M0 &&
+ mhi_cntrl->dev_state <= MHI_STATE_M3_FAST);
+}
/* Register access methods */
void mhi_db_brstmode(struct mhi_controller *mhi_cntrl, struct db_cfg *db_cfg,
--
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