diff options
Diffstat (limited to 'drivers/bus/mhi/core/init.c')
| -rw-r--r-- | drivers/bus/mhi/core/init.c | 72 |
1 files changed, 43 insertions, 29 deletions
diff --git a/drivers/bus/mhi/core/init.c b/drivers/bus/mhi/core/init.c index be4eebb0971b..c81b377fca8f 100644 --- a/drivers/bus/mhi/core/init.c +++ b/drivers/bus/mhi/core/init.c @@ -22,13 +22,14 @@ static DEFINE_IDA(mhi_controller_ida); const char * const mhi_ee_str[MHI_EE_MAX] = { - [MHI_EE_PBL] = "PBL", - [MHI_EE_SBL] = "SBL", - [MHI_EE_AMSS] = "AMSS", - [MHI_EE_RDDM] = "RDDM", - [MHI_EE_WFW] = "WFW", - [MHI_EE_PTHRU] = "PASS THRU", - [MHI_EE_EDL] = "EDL", + [MHI_EE_PBL] = "PRIMARY BOOTLOADER", + [MHI_EE_SBL] = "SECONDARY BOOTLOADER", + [MHI_EE_AMSS] = "MISSION MODE", + [MHI_EE_RDDM] = "RAMDUMP DOWNLOAD MODE", + [MHI_EE_WFW] = "WLAN FIRMWARE", + [MHI_EE_PTHRU] = "PASS THROUGH", + [MHI_EE_EDL] = "EMERGENCY DOWNLOAD", + [MHI_EE_FP] = "FLASH PROGRAMMER", [MHI_EE_DISABLE_TRANSITION] = "DISABLE", [MHI_EE_NOT_SUPPORTED] = "NOT SUPPORTED", }; @@ -37,8 +38,9 @@ const char * const dev_state_tran_str[DEV_ST_TRANSITION_MAX] = { [DEV_ST_TRANSITION_PBL] = "PBL", [DEV_ST_TRANSITION_READY] = "READY", [DEV_ST_TRANSITION_SBL] = "SBL", - [DEV_ST_TRANSITION_MISSION_MODE] = "MISSION_MODE", - [DEV_ST_TRANSITION_SYS_ERR] = "SYS_ERR", + [DEV_ST_TRANSITION_MISSION_MODE] = "MISSION MODE", + [DEV_ST_TRANSITION_FP] = "FLASH PROGRAMMER", + [DEV_ST_TRANSITION_SYS_ERR] = "SYS ERROR", [DEV_ST_TRANSITION_DISABLE] = "DISABLE", }; @@ -49,24 +51,30 @@ const char * const mhi_state_str[MHI_STATE_MAX] = { [MHI_STATE_M1] = "M1", [MHI_STATE_M2] = "M2", [MHI_STATE_M3] = "M3", - [MHI_STATE_M3_FAST] = "M3_FAST", + [MHI_STATE_M3_FAST] = "M3 FAST", [MHI_STATE_BHI] = "BHI", - [MHI_STATE_SYS_ERR] = "SYS_ERR", + [MHI_STATE_SYS_ERR] = "SYS ERROR", +}; + +const char * const mhi_ch_state_type_str[MHI_CH_STATE_TYPE_MAX] = { + [MHI_CH_STATE_TYPE_RESET] = "RESET", + [MHI_CH_STATE_TYPE_STOP] = "STOP", + [MHI_CH_STATE_TYPE_START] = "START", }; static const char * const mhi_pm_state_str[] = { [MHI_PM_STATE_DISABLE] = "DISABLE", - [MHI_PM_STATE_POR] = "POR", + [MHI_PM_STATE_POR] = "POWER ON RESET", [MHI_PM_STATE_M0] = "M0", [MHI_PM_STATE_M2] = "M2", [MHI_PM_STATE_M3_ENTER] = "M?->M3", [MHI_PM_STATE_M3] = "M3", [MHI_PM_STATE_M3_EXIT] = "M3->M0", - [MHI_PM_STATE_FW_DL_ERR] = "FW DL Error", - [MHI_PM_STATE_SYS_ERR_DETECT] = "SYS_ERR Detect", - [MHI_PM_STATE_SYS_ERR_PROCESS] = "SYS_ERR Process", + [MHI_PM_STATE_FW_DL_ERR] = "Firmware Download Error", + [MHI_PM_STATE_SYS_ERR_DETECT] = "SYS ERROR Detect", + [MHI_PM_STATE_SYS_ERR_PROCESS] = "SYS ERROR Process", [MHI_PM_STATE_SHUTDOWN_PROCESS] = "SHUTDOWN Process", - [MHI_PM_STATE_LD_ERR_FATAL_DETECT] = "LD or Error Fatal Detect", + [MHI_PM_STATE_LD_ERR_FATAL_DETECT] = "Linkdown or Error Fatal Detect", }; const char *to_mhi_pm_state_str(enum mhi_pm_state state) @@ -508,8 +516,6 @@ int mhi_init_mmio(struct mhi_controller *mhi_cntrl) /* Setup wake db */ mhi_cntrl->wake_db = base + val + (8 * MHI_DEV_WAKE_DB); - mhi_write_reg(mhi_cntrl, mhi_cntrl->wake_db, 4, 0); - mhi_write_reg(mhi_cntrl, mhi_cntrl->wake_db, 0, 0); mhi_cntrl->wake_set = false; /* Setup channel db address for each channel in tre_ring */ @@ -552,6 +558,7 @@ void mhi_deinit_chan_ctxt(struct mhi_controller *mhi_cntrl, struct mhi_ring *buf_ring; struct mhi_ring *tre_ring; struct mhi_chan_ctxt *chan_ctxt; + u32 tmp; buf_ring = &mhi_chan->buf_ring; tre_ring = &mhi_chan->tre_ring; @@ -565,7 +572,19 @@ void mhi_deinit_chan_ctxt(struct mhi_controller *mhi_cntrl, vfree(buf_ring->base); buf_ring->base = tre_ring->base = NULL; + tre_ring->ctxt_wp = NULL; chan_ctxt->rbase = 0; + chan_ctxt->rlen = 0; + chan_ctxt->rp = 0; + chan_ctxt->wp = 0; + + tmp = chan_ctxt->chcfg; + tmp &= ~CHAN_CTX_CHSTATE_MASK; + tmp |= (MHI_CH_STATE_DISABLED << CHAN_CTX_CHSTATE_SHIFT); + chan_ctxt->chcfg = tmp; + + /* Update to all cores */ + smp_wmb(); } int mhi_init_chan_ctxt(struct mhi_controller *mhi_cntrl, @@ -863,12 +882,10 @@ int mhi_register_controller(struct mhi_controller *mhi_cntrl, u32 soc_info; int ret, i; - if (!mhi_cntrl) - return -EINVAL; - - if (!mhi_cntrl->runtime_get || !mhi_cntrl->runtime_put || + if (!mhi_cntrl || !mhi_cntrl->cntrl_dev || !mhi_cntrl->regs || + !mhi_cntrl->runtime_get || !mhi_cntrl->runtime_put || !mhi_cntrl->status_cb || !mhi_cntrl->read_reg || - !mhi_cntrl->write_reg || !mhi_cntrl->nr_irqs) + !mhi_cntrl->write_reg || !mhi_cntrl->nr_irqs || !mhi_cntrl->irq) return -EINVAL; ret = parse_config(mhi_cntrl, config); @@ -890,8 +907,7 @@ int mhi_register_controller(struct mhi_controller *mhi_cntrl, INIT_WORK(&mhi_cntrl->st_worker, mhi_pm_st_worker); init_waitqueue_head(&mhi_cntrl->state_event); - mhi_cntrl->hiprio_wq = alloc_ordered_workqueue - ("mhi_hiprio_wq", WQ_MEM_RECLAIM | WQ_HIGHPRI); + mhi_cntrl->hiprio_wq = alloc_ordered_workqueue("mhi_hiprio_wq", WQ_HIGHPRI); if (!mhi_cntrl->hiprio_wq) { dev_err(mhi_cntrl->cntrl_dev, "Failed to allocate workqueue\n"); ret = -ENOMEM; @@ -1083,8 +1099,6 @@ int mhi_prepare_for_power_up(struct mhi_controller *mhi_cntrl) mhi_rddm_prepare(mhi_cntrl, mhi_cntrl->rddm_image); } - mhi_cntrl->pre_init = true; - mutex_unlock(&mhi_cntrl->pm_mutex); return 0; @@ -1115,7 +1129,6 @@ void mhi_unprepare_after_power_down(struct mhi_controller *mhi_cntrl) } mhi_deinit_dev_ctxt(mhi_cntrl); - mhi_cntrl->pre_init = false; } EXPORT_SYMBOL_GPL(mhi_unprepare_after_power_down); @@ -1296,7 +1309,8 @@ static int mhi_driver_remove(struct device *dev) mutex_lock(&mhi_chan->mutex); - if (ch_state[dir] == MHI_CH_STATE_ENABLED && + if ((ch_state[dir] == MHI_CH_STATE_ENABLED || + ch_state[dir] == MHI_CH_STATE_STOP) && !mhi_chan->offload_ch) mhi_deinit_chan_ctxt(mhi_cntrl, mhi_chan); |