diff options
Diffstat (limited to 'drivers/bus/mhi/pci_generic.c')
| -rw-r--r-- | drivers/bus/mhi/pci_generic.c | 45 |
1 files changed, 36 insertions, 9 deletions
diff --git a/drivers/bus/mhi/pci_generic.c b/drivers/bus/mhi/pci_generic.c index 19413daa0917..b33b9d75e8af 100644 --- a/drivers/bus/mhi/pci_generic.c +++ b/drivers/bus/mhi/pci_generic.c @@ -33,6 +33,8 @@ * @bar_num: PCI base address register to use for MHI MMIO register space * @dma_data_width: DMA transfer word size (32 or 64 bits) * @mru_default: default MRU size for MBIM network packets + * @sideband_wake: Devices using dedicated sideband GPIO for wakeup instead + * of inband wake support (such as sdx24) */ struct mhi_pci_dev_info { const struct mhi_controller_config *config; @@ -42,6 +44,7 @@ struct mhi_pci_dev_info { unsigned int bar_num; unsigned int dma_data_width; unsigned int mru_default; + bool sideband_wake; }; #define MHI_CHANNEL_CONFIG_UL(ch_num, ch_name, el_count, ev_ring) \ @@ -74,6 +77,22 @@ struct mhi_pci_dev_info { .doorbell_mode_switch = false, \ } +#define MHI_CHANNEL_CONFIG_DL_AUTOQUEUE(ch_num, ch_name, el_count, ev_ring) \ + { \ + .num = ch_num, \ + .name = ch_name, \ + .num_elements = el_count, \ + .event_ring = ev_ring, \ + .dir = DMA_FROM_DEVICE, \ + .ee_mask = BIT(MHI_EE_AMSS), \ + .pollcfg = 0, \ + .doorbell = MHI_DB_BRST_DISABLE, \ + .lpm_notify = false, \ + .offload_channel = false, \ + .doorbell_mode_switch = false, \ + .auto_queue = true, \ + } + #define MHI_EVENT_CONFIG_CTRL(ev_ring, el_count) \ { \ .num_elements = el_count, \ @@ -212,7 +231,7 @@ static const struct mhi_channel_config modem_qcom_v1_mhi_channels[] = { MHI_CHANNEL_CONFIG_UL(14, "QMI", 4, 0), MHI_CHANNEL_CONFIG_DL(15, "QMI", 4, 0), MHI_CHANNEL_CONFIG_UL(20, "IPCR", 8, 0), - MHI_CHANNEL_CONFIG_DL(21, "IPCR", 8, 0), + MHI_CHANNEL_CONFIG_DL_AUTOQUEUE(21, "IPCR", 8, 0), MHI_CHANNEL_CONFIG_UL_FP(34, "FIREHOSE", 32, 0), MHI_CHANNEL_CONFIG_DL_FP(35, "FIREHOSE", 32, 0), MHI_CHANNEL_CONFIG_HW_UL(100, "IP_HW0", 128, 2), @@ -244,7 +263,8 @@ static const struct mhi_pci_dev_info mhi_qcom_sdx65_info = { .edl = "qcom/sdx65m/edl.mbn", .config = &modem_qcom_v1_mhiv_config, .bar_num = MHI_PCI_DEFAULT_BAR_NUM, - .dma_data_width = 32 + .dma_data_width = 32, + .sideband_wake = false, }; static const struct mhi_pci_dev_info mhi_qcom_sdx55_info = { @@ -254,7 +274,8 @@ static const struct mhi_pci_dev_info mhi_qcom_sdx55_info = { .config = &modem_qcom_v1_mhiv_config, .bar_num = MHI_PCI_DEFAULT_BAR_NUM, .dma_data_width = 32, - .mru_default = 32768 + .mru_default = 32768, + .sideband_wake = false, }; static const struct mhi_pci_dev_info mhi_qcom_sdx24_info = { @@ -262,7 +283,8 @@ static const struct mhi_pci_dev_info mhi_qcom_sdx24_info = { .edl = "qcom/prog_firehose_sdx24.mbn", .config = &modem_qcom_v1_mhiv_config, .bar_num = MHI_PCI_DEFAULT_BAR_NUM, - .dma_data_width = 32 + .dma_data_width = 32, + .sideband_wake = true, }; static const struct mhi_channel_config mhi_quectel_em1xx_channels[] = { @@ -304,7 +326,8 @@ static const struct mhi_pci_dev_info mhi_quectel_em1xx_info = { .edl = "qcom/prog_firehose_sdx24.mbn", .config = &modem_quectel_em1xx_config, .bar_num = MHI_PCI_DEFAULT_BAR_NUM, - .dma_data_width = 32 + .dma_data_width = 32, + .sideband_wake = true, }; static const struct mhi_channel_config mhi_foxconn_sdx55_channels[] = { @@ -342,7 +365,8 @@ static const struct mhi_pci_dev_info mhi_foxconn_sdx55_info = { .edl = "qcom/sdx55m/edl.mbn", .config = &modem_foxconn_sdx55_config, .bar_num = MHI_PCI_DEFAULT_BAR_NUM, - .dma_data_width = 32 + .dma_data_width = 32, + .sideband_wake = false, }; static const struct pci_device_id mhi_pci_id_table[] = { @@ -643,11 +667,14 @@ static int mhi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) mhi_cntrl->status_cb = mhi_pci_status_cb; mhi_cntrl->runtime_get = mhi_pci_runtime_get; mhi_cntrl->runtime_put = mhi_pci_runtime_put; - mhi_cntrl->wake_get = mhi_pci_wake_get_nop; - mhi_cntrl->wake_put = mhi_pci_wake_put_nop; - mhi_cntrl->wake_toggle = mhi_pci_wake_toggle_nop; mhi_cntrl->mru = info->mru_default; + if (info->sideband_wake) { + mhi_cntrl->wake_get = mhi_pci_wake_get_nop; + mhi_cntrl->wake_put = mhi_pci_wake_put_nop; + mhi_cntrl->wake_toggle = mhi_pci_wake_toggle_nop; + } + err = mhi_pci_claim(mhi_cntrl, info->bar_num, DMA_BIT_MASK(info->dma_data_width)); if (err) return err; |