usb: host: ehci-generic: add generic PHY support

Extend ehci-generic driver with generic PHY framework

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/drivers/usb/host/ehci-generic.c b/drivers/usb/host/ehci-generic.c
index e058445dca506fe97b04854c0b71e09802810526..3f751f1ecdcae838768305aad63db297a9e61e61 100644 (file)
--- a/drivers/usb/host/ehci-generic.c
+++ b/drivers/usb/host/ehci-generic.c
@@ -7,6 +7,7 @@
 #include <common.h>
 #include <clk.h>
 #include <dm/ofnode.h>
+#include <generic-phy.h>
 #include <reset.h>
 #include <asm/io.h>
 #include <dm.h>
@@ -21,6 +22,7 @@ struct generic_ehci {
        struct ehci_ctrl ctrl;
        struct clk *clocks;
        struct reset_ctl *resets;
+       struct phy phy;
        int clock_count;
        int reset_count;
 };
@@ -91,16 +93,37 @@ static int ehci_usb_probe(struct udevice *dev)
                }
        }
 
+       err = generic_phy_get_by_index(dev, 0, &priv->phy);
+       if (err) {
+               if (err != -ENOENT) {
+                       error("failed to get usb phy\n");
+                       goto reset_err;
+               }
+       }
+
+       err = generic_phy_init(&priv->phy);
+       if (err) {
+               error("failed to init usb phy\n");
+               goto reset_err;
+       }
+
        hccr = map_physmem(devfdt_get_addr(dev), 0x100, MAP_NOCACHE);
        hcor = (struct ehci_hcor *)((uintptr_t)hccr +
                                    HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
 
        err = ehci_register(dev, hccr, hcor, NULL, 0, USB_INIT_HOST);
        if (err)
-               goto reset_err;
+               goto phy_err;
 
        return 0;
 
+phy_err:
+       if (generic_phy_valid(&priv->phy)) {
+               ret = generic_phy_exit(&priv->phy);
+               if (ret)
+                       error("failed to release phy\n");
+       }
+
 reset_err:
        ret = reset_release_all(priv->resets, priv->reset_count);
        if (ret)
@@ -122,6 +145,12 @@ static int ehci_usb_remove(struct udevice *dev)
        if (ret)
                return ret;
 
+       if (generic_phy_valid(&priv->phy)) {
+               ret = generic_phy_exit(&priv->phy);
+               if (ret)
+                       return ret;
+       }
+
        ret =  reset_release_all(priv->resets, priv->reset_count);
        if (ret)
                return ret;