From: Mugunthan V N mugunthanvnm@ti.com
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 ---
Origin series here: https://patchwork.ozlabs.org/patch/775108/
- Fix labels as was asked in previous review. --- drivers/usb/dwc3/core.c | 57 +++++++++++++++++++++++++++++++++++++++++ drivers/usb/dwc3/core.h | 6 +++++ 2 files changed, 63 insertions(+)
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index dbdad22d1134..e533325dda07 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -602,6 +602,8 @@ static void dwc3_core_exit_mode(struct dwc3 *dwc)
#define DWC3_ALIGN_MASK (16 - 1)
+#ifndef CONFIG_DM_USB + /** * dwc3_uboot_init - dwc3 core uboot initialization code * @dwc3_dev: struct dwc3_device containing initialization data @@ -788,3 +790,58 @@ MODULE_ALIAS("platform:dwc3"); MODULE_AUTHOR("Felipe Balbi balbi@ti.com"); MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("DesignWare USB3 DRD Controller Driver"); + +#else + +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 diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index cbe9850a0bda..ad16c9b7c46c 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -712,7 +712,11 @@ struct dwc3 { /* device lock */ spinlock_t lock;
+#ifndef CONFIG_DM_USB struct device *dev; +#else + struct udevice *dev; +#endif
struct platform_device *xhci; struct resource xhci_resources[DWC3_XHCI_RESOURCES_NUM]; @@ -987,6 +991,8 @@ struct dwc3_gadget_ep_cmd_params {
/* prototypes */ int dwc3_gadget_resize_tx_fifos(struct dwc3 *dwc); +int dwc3_init(struct dwc3 *dwc); +void dwc3_remove(struct dwc3 *dwc);
#ifdef CONFIG_USB_DWC3_HOST int dwc3_host_init(struct dwc3 *dwc);