diff options
| author | Mugunthan V N <mugunthanvnm@ti.com> | 2018-05-18 13:15:04 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2018-05-18 13:23:10 +0200 |
| commit | 23ba2d6372e45479106922c6241a7a09707bbe08 (patch) | |
| tree | adcd0f130d98ec85c3cc090a1193bedea0c29632 /drivers/usb/dwc3/core.c | |
| parent | 3b29121678241078ce08120e18108898ff3b7abd (diff) | |
usb: dwc3: Add dwc3_init/remove with DM_USB
The patch is preparing dwc3 core for enabling DM_USB with peripheral
driver with using driver model support.
The driver will be bound by the DWC3 wrapper driver based on the
dr_mode device tree entry.
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
(Remove dwc3-omap changes)
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'drivers/usb/dwc3/core.c')
| -rw-r--r-- | drivers/usb/dwc3/core.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 7a91015048..7cf0564b2b 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -785,3 +785,58 @@ MODULE_ALIAS("platform:dwc3"); MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("DesignWare USB3 DRD Controller Driver"); + +#ifdef CONFIG_DM_USB + +int dwc3_init(struct dwc3 *dwc) +{ + int ret; + + dwc3_cache_hwparams(dwc); + + ret = dwc3_alloc_event_buffers(dwc, DWC3_EVENT_BUFFERS_SIZE); + if (ret) { + dev_err(dwc->dev, "failed to allocate event buffers\n"); + return -ENOMEM; + } + + ret = dwc3_core_init(dwc); + if (ret) { + dev_err(dev, "failed to initialize core\n"); + goto core_fail; + } + + ret = dwc3_event_buffers_setup(dwc); + if (ret) { + dev_err(dwc->dev, "failed to setup event buffers\n"); + goto event_fail; + } + + ret = dwc3_core_init_mode(dwc); + if (ret) + goto mode_fail; + + return 0; + +mode_fail: + dwc3_event_buffers_cleanup(dwc); + +event_fail: + dwc3_core_exit(dwc); + +core_fail: + dwc3_free_event_buffers(dwc); + + return ret; +} + +void dwc3_remove(struct dwc3 *dwc) +{ + dwc3_core_exit_mode(dwc); + dwc3_event_buffers_cleanup(dwc); + dwc3_free_event_buffers(dwc); + dwc3_core_exit(dwc); + kfree(dwc->mem); +} + +#endif |