author: Loic Poulain <loic.poulain@linaro.org> 2021-06-21 21:46:10 +0530
committer: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-07-14 17:06:11 +0200
commit: 0b509e3ec35df9a6207bb85edb8451f54770af7b
parent: 0530021455af9c2a3073cd41ecf5f9a4168a34ac
Commit Summary:
Diffstat:
1 file changed, 5 insertions, 13 deletions
diff --git a/drivers/bus/mhi/core/pm.c b/drivers/bus/mhi/core/pm.c
index e2e59a341fef..704a5e225097 100644
--- a/drivers/bus/mhi/core/pm.c
+++ b/drivers/bus/mhi/core/pm.c
@@ -465,23 +465,15 @@ static void mhi_pm_disable_transition(struct mhi_controller *mhi_cntrl)
/* Trigger MHI RESET so that the device will not access host memory */
if (!MHI_PM_IN_FATAL_STATE(mhi_cntrl->pm_state)) {
- u32 in_reset = -1;
- unsigned long timeout = msecs_to_jiffies(mhi_cntrl->timeout_ms);
-
dev_dbg(dev, "Triggering MHI Reset in device\n");
mhi_set_mhi_state(mhi_cntrl, MHI_STATE_RESET);
/* Wait for the reset bit to be cleared by the device */
- ret = wait_event_timeout(mhi_cntrl->state_event,
- mhi_read_reg_field(mhi_cntrl,
- mhi_cntrl->regs,
- MHICTRL,
- MHICTRL_RESET_MASK,
- MHICTRL_RESET_SHIFT,
- &in_reset) ||
- !in_reset, timeout);
- if (!ret || in_reset)
- dev_err(dev, "Device failed to exit MHI Reset state\n");
+ ret = mhi_poll_reg_field(mhi_cntrl, mhi_cntrl->regs, MHICTRL,
+ MHICTRL_RESET_MASK, MHICTRL_RESET_SHIFT, 0,
+ 25000);
+ if (ret)
+ dev_err(dev, "Device failed to clear MHI Reset\n");
/*
* Device will clear BHI_INTVEC as a part of RESET processing,