diff options
Diffstat (limited to 'drivers/bus/mhi/host/pm.c')
| -rw-r--r-- | drivers/bus/mhi/host/pm.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/bus/mhi/host/pm.c b/drivers/bus/mhi/host/pm.c index 3d90b8ecd3d9..c000a92fd3ab 100644 --- a/drivers/bus/mhi/host/pm.c +++ b/drivers/bus/mhi/host/pm.c @@ -476,6 +476,15 @@ static void mhi_pm_disable_transition(struct mhi_controller *mhi_cntrl) * hence re-program it */ mhi_write_reg(mhi_cntrl, mhi_cntrl->bhi, BHI_INTVEC, 0); + + if (!MHI_IN_PBL(mhi_get_exec_env(mhi_cntrl))) { + /* wait for ready to be set */ + ret = mhi_poll_reg_field(mhi_cntrl, mhi_cntrl->regs, + MHISTATUS, + MHISTATUS_READY_MASK, 1, 25000); + if (ret) + dev_err(dev, "Device failed to enter READY state\n"); + } } dev_dbg(dev, |