mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 10:49:33 +00:00
bus: mhi: core: Move to an error state on mission mode failure
If the host receives a mission mode event and by the time it can get to processing it, the register accesses fail implying a connectivity error, MHI should move to an error state. This helps avoid longer wait times from a synchronous power up perspective and accurately reflects the MHI execution environment and power management states. Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
This commit is contained in:
parent
faa257075b
commit
dc53d862ea
1 changed files with 6 additions and 2 deletions
|
@ -383,10 +383,14 @@ static int mhi_pm_mission_mode_transition(struct mhi_controller *mhi_cntrl)
|
|||
write_lock_irq(&mhi_cntrl->pm_lock);
|
||||
if (MHI_REG_ACCESS_VALID(mhi_cntrl->pm_state))
|
||||
mhi_cntrl->ee = mhi_get_exec_env(mhi_cntrl);
|
||||
write_unlock_irq(&mhi_cntrl->pm_lock);
|
||||
|
||||
if (!MHI_IN_MISSION_MODE(mhi_cntrl->ee))
|
||||
if (!MHI_IN_MISSION_MODE(mhi_cntrl->ee)) {
|
||||
mhi_cntrl->pm_state = MHI_PM_LD_ERR_FATAL_DETECT;
|
||||
write_unlock_irq(&mhi_cntrl->pm_lock);
|
||||
wake_up_all(&mhi_cntrl->state_event);
|
||||
return -EIO;
|
||||
}
|
||||
write_unlock_irq(&mhi_cntrl->pm_lock);
|
||||
|
||||
wake_up_all(&mhi_cntrl->state_event);
|
||||
|
||||
|
|
Loading…
Reference in a new issue