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| author | Grigor Tovmasyan <Grigor.Tovmasyan@synopsys.com> | 2018-05-05 12:17:58 +0400 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-05-15 10:16:47 +0300 |
| commit | b43ebc96e985fed9417c6aff769a6839bdaa6cdf (patch) | |
| tree | 5b2c05b2f796e8ff680d440f9935e525d890d34c /drivers/usb/dwc2/core.h | |
| parent | 37981e00503f6bdeb99108ff90199002c3eec2f5 (diff) | |
| download | linux-b43ebc96e985fed9417c6aff769a6839bdaa6cdf.tar.gz linux-b43ebc96e985fed9417c6aff769a6839bdaa6cdf.tar.bz2 linux-b43ebc96e985fed9417c6aff769a6839bdaa6cdf.zip | |
usb: dwc2: Add Interpacket Gap(IPG) feature support
Added GHWCFG4_IPG_ISOC_SUPPORTED and DCFG_IPG_ISOC_SUPPORDED
bits definitions to enable/disable IPG feature.
Added ipg_isoc_en core parameter which will indicate IPG support
enable/disable and initialize it.
Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc2/core.h')
| -rw-r--r-- | drivers/usb/dwc2/core.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h index 274bf0a83ae4..e75a41761671 100644 --- a/drivers/usb/dwc2/core.h +++ b/drivers/usb/dwc2/core.h @@ -380,6 +380,9 @@ enum dwc2_ep0_state { * is FS. * 0 - No (default) * 1 - Yes + * @ipg_isoc_en Indicates the IPG supports is enabled or disabled. + * 0 - Disable (default) + * 1 - Enable * @ulpi_fs_ls: Make ULPI phy operate in FS/LS mode only * 0 - No (default) * 1 - Yes @@ -511,6 +514,7 @@ struct dwc2_core_params { bool hird_threshold_en; u8 hird_threshold; bool activate_stm_fs_transceiver; + bool ipg_isoc_en; u16 max_packet_count; u32 max_transfer_size; u32 ahbcfg; @@ -560,6 +564,12 @@ struct dwc2_core_params { * 0 - Slave only * 1 - External DMA * 2 - Internal DMA + * @ipg_isoc_en This feature indicates that the controller supports + * the worst-case scenario of Rx followed by Rx + * Interpacket Gap (IPG) (32 bitTimes) as per the utmi + * specification for any token following ISOC OUT token. + * 0 - Don't support + * 1 - Support * @power_optimized Are power optimizations enabled? * @num_dev_ep Number of device endpoints available * @num_dev_in_eps Number of device IN endpoints available @@ -622,6 +632,7 @@ struct dwc2_hw_params { unsigned hibernation:1; unsigned utmi_phy_data_width:2; unsigned lpm_mode:1; + unsigned ipg_isoc_en:1; u32 snpsid; u32 dev_ep_dirs; u32 g_tx_fifo_size[MAX_EPS_CHANNELS]; |