On Thu, Jul 23, 2020 at 03:36:40PM -0700, Bhaumik Bhatt wrote: > Use counters to track MHI device state transitions such as those > to M0, M2, or M3 states. This helps in better debug by allowing > the user to see the number of transitions to a certain state when > queried using the states debugfs entry. > > Signed-off-by: Bhaumik Bhatt <[email protected]>
This patch should come before the debugfs patch. Also the header addition should be here. Thanks, Mani > --- > drivers/bus/mhi/core/pm.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/bus/mhi/core/pm.c b/drivers/bus/mhi/core/pm.c > index 27bb471..ce4d969 100644 > --- a/drivers/bus/mhi/core/pm.c > +++ b/drivers/bus/mhi/core/pm.c > @@ -256,6 +256,7 @@ int mhi_pm_m0_transition(struct mhi_controller *mhi_cntrl) > dev_err(dev, "Unable to transition to M0 state\n"); > return -EIO; > } > + mhi_cntrl->M0++; > > /* Wake up the device */ > read_lock_bh(&mhi_cntrl->pm_lock); > @@ -326,6 +327,8 @@ void mhi_pm_m1_transition(struct mhi_controller > *mhi_cntrl) > mhi_cntrl->dev_state = MHI_STATE_M2; > > write_unlock_irq(&mhi_cntrl->pm_lock); > + > + mhi_cntrl->M2++; > wake_up_all(&mhi_cntrl->state_event); > > /* If there are any pending resources, exit M2 immediately */ > @@ -362,6 +365,7 @@ int mhi_pm_m3_transition(struct mhi_controller *mhi_cntrl) > return -EIO; > } > > + mhi_cntrl->M3++; > wake_up_all(&mhi_cntrl->state_event); > > return 0; > -- > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, > a Linux Foundation Collaborative Project >
