diff --git a/drivers/bus/mhi/host/main.c b/drivers/bus/mhi/host/main.c index 53c0ffe30070..4d458396233a 100644 --- a/drivers/bus/mhi/host/main.c +++ b/drivers/bus/mhi/host/main.c @@ -170,6 +170,9 @@ EXPORT_SYMBOL_GPL(mhi_get_mhi_state); void mhi_soc_reset(struct mhi_controller *mhi_cntrl) { + int __maybe_unused ret; + u32 tmp; + if (mhi_cntrl->reset) { mhi_cntrl->reset(mhi_cntrl); return; @@ -178,6 +181,9 @@ void mhi_soc_reset(struct mhi_controller *mhi_cntrl) /* Generic MHI SoC reset */ mhi_write_reg(mhi_cntrl, mhi_cntrl->regs, MHI_SOC_RESET_REQ_OFFSET, MHI_SOC_RESET_REQ); + /* Flush the posted write to the device (ignore return value) */ + ret = mhi_read_reg(mhi_cntrl, mhi_cntrl->regs, MHI_SOC_RESET_REQ_OFFSET, + &tmp); } EXPORT_SYMBOL_GPL(mhi_soc_reset);