treewide: replace with error() with pr_err()

[u-boot] / drivers / usb / host / xhci-dwc3.c

diff --git a/drivers/usb/host/xhci-dwc3.c b/drivers/usb/host/xhci-dwc3.c
index 33961cd63455ff7353481ffb9a798e67a29d34fb..258d1cd00a085adaa9cf1c613947eaf43c3767aa 100644 (file)
--- a/drivers/usb/host/xhci-dwc3.c
+++ b/drivers/usb/host/xhci-dwc3.c
@@ -9,8 +9,21 @@
  */
 
 #include <common.h>
+#include <dm.h>
+#include <fdtdec.h>
+#include <generic-phy.h>
+#include <usb.h>
+
+#include "xhci.h"
 #include <asm/io.h>
 #include <linux/usb/dwc3.h>
+#include <linux/usb/otg.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct xhci_dwc3_platdata {
+       struct phy usb_phy;
+};
 
 void dwc3_set_mode(struct dwc3 *dwc3_reg, u32 mode)
 {
@@ -19,7 +32,7 @@ void dwc3_set_mode(struct dwc3 *dwc3_reg, u32 mode)
                        DWC3_GCTL_PRTCAPDIR(mode));
 }
 
-void dwc3_phy_reset(struct dwc3 *dwc3_reg)
+static void dwc3_phy_reset(struct dwc3 *dwc3_reg)
 {
        /* Assert USB3 PHY reset */
        setbits_le32(&dwc3_reg->g_usb3pipectl[0], DWC3_GUSB3PIPECTL_PHYSOFTRST);
@@ -97,3 +110,79 @@ void dwc3_set_fladj(struct dwc3 *dwc3_reg, u32 val)
        setbits_le32(&dwc3_reg->g_fladj, GFLADJ_30MHZ_REG_SEL |
                        GFLADJ_30MHZ(val));
 }
+
+#ifdef CONFIG_DM_USB
+static int xhci_dwc3_probe(struct udevice *dev)
+{
+       struct xhci_dwc3_platdata *plat = dev_get_platdata(dev);
+       struct xhci_hcor *hcor;
+       struct xhci_hccr *hccr;
+       struct dwc3 *dwc3_reg;
+       enum usb_dr_mode dr_mode;
+       int ret;
+
+       hccr = (struct xhci_hccr *)((uintptr_t)dev_read_addr(dev));
+       hcor = (struct xhci_hcor *)((uintptr_t)hccr +
+                       HC_LENGTH(xhci_readl(&(hccr)->cr_capbase)));
+
+       ret = generic_phy_get_by_index(dev, 0, &plat->usb_phy);
+       if (ret) {
+               if (ret != -ENOENT) {
+                       pr_err("Failed to get USB PHY for %s\n", dev->name);
+                       return ret;
+               }
+       } else {
+               ret = generic_phy_init(&plat->usb_phy);
+               if (ret) {
+                       pr_err("Can't init USB PHY for %s\n", dev->name);
+                       return ret;
+               }
+       }
+
+       dwc3_reg = (struct dwc3 *)((char *)(hccr) + DWC3_REG_OFFSET);
+
+       dwc3_core_init(dwc3_reg);
+
+       dr_mode = usb_get_dr_mode(dev_of_offset(dev));
+       if (dr_mode == USB_DR_MODE_UNKNOWN)
+               /* by default set dual role mode to HOST */
+               dr_mode = USB_DR_MODE_HOST;
+
+       dwc3_set_mode(dwc3_reg, dr_mode);
+
+       return xhci_register(dev, hccr, hcor);
+}
+
+static int xhci_dwc3_remove(struct udevice *dev)
+{
+       struct xhci_dwc3_platdata *plat = dev_get_platdata(dev);
+       int ret;
+
+       if (generic_phy_valid(&plat->usb_phy)) {
+               ret = generic_phy_exit(&plat->usb_phy);
+               if (ret) {
+                       pr_err("Can't deinit USB PHY for %s\n", dev->name);
+                       return ret;
+               }
+       }
+
+       return xhci_deregister(dev);
+}
+
+static const struct udevice_id xhci_dwc3_ids[] = {
+       { .compatible = "snps,dwc3" },
+       { }
+};
+
+U_BOOT_DRIVER(xhci_dwc3) = {
+       .name = "xhci-dwc3",
+       .id = UCLASS_USB,
+       .of_match = xhci_dwc3_ids,
+       .probe = xhci_dwc3_probe,
+       .remove = xhci_dwc3_remove,
+       .ops = &xhci_usb_ops,
+       .priv_auto_alloc_size = sizeof(struct xhci_ctrl),
+       .platdata_auto_alloc_size = sizeof(struct xhci_dwc3_platdata),
+       .flags = DM_FLAG_ALLOC_PRIV_DMA,
+};
+#endif