SPDX: Convert all of our single license tags to Linux Kernel style

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

diff --git a/drivers/usb/host/xhci-rockchip.c b/drivers/usb/host/xhci-rockchip.c
index f559830185de3a49621252552e1dbdaae38b0073..060a6c43092f441f37322c220ba1d6ae45b4b55f 100644 (file)
--- a/drivers/usb/host/xhci-rockchip.c
+++ b/drivers/usb/host/xhci-rockchip.c
@@ -1,29 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2016 Rockchip, Inc.
  * Authors: Daniel Meng <daniel.meng@rock-chips.com>
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 #include <common.h>
 #include <dm.h>
-#include <fdtdec.h>
-#include <libfdt.h>
 #include <malloc.h>
 #include <usb.h>
 #include <watchdog.h>
-#include <asm/gpio.h>
 #include <linux/errno.h>
 #include <linux/compat.h>
 #include <linux/usb/dwc3.h>
+#include <power/regulator.h>
 
 #include "xhci.h"
 
-DECLARE_GLOBAL_DATA_PTR;
-
 struct rockchip_xhci_platdata {
        fdt_addr_t hcd_base;
        fdt_addr_t phy_base;
-       struct gpio_desc vbus_gpio;
+       struct udevice *vbus_supply;
 };
 
 /*
@@ -46,31 +41,31 @@ static int xhci_usb_ofdata_to_platdata(struct udevice *dev)
        /*
         * Get the base address for XHCI controller from the device node
         */
-       plat->hcd_base = dev_get_addr(dev);
+       plat->hcd_base = dev_read_addr(dev);
        if (plat->hcd_base == FDT_ADDR_T_NONE) {
-               debug("Can't get the XHCI register base address\n");
+               pr_err("Can't get the XHCI register base address\n");
                return -ENXIO;
        }
 
        /* Get the base address for usbphy from the device node */
        for (device_find_first_child(dev, &child); child;
             device_find_next_child(&child)) {
-               if (!of_device_is_compatible(child, "rockchip,rk3399-usb3-phy"))
+               if (!device_is_compatible(child, "rockchip,rk3399-usb3-phy"))
                        continue;
-               plat->phy_base = dev_get_addr(child);
+               plat->phy_base = devfdt_get_addr(child);
                break;
        }
 
        if (plat->phy_base == FDT_ADDR_T_NONE) {
-               debug("Can't get the usbphy register address\n");
+               pr_err("Can't get the usbphy register address\n");
                return -ENXIO;
        }
 
-       /* Vbus gpio */
-       ret = gpio_request_by_name(dev, "rockchip,vbus-gpio", 0,
-                                  &plat->vbus_gpio, GPIOD_IS_OUT);
+       /* Vbus regulator */
+       ret = device_get_supply_regulator(dev, "vbus-supply",
+                                         &plat->vbus_supply);
        if (ret)
-               debug("rockchip,vbus-gpio node missing!");
+               debug("Can't get VBus regulator!\n");
 
        return 0;
 }
@@ -84,18 +79,15 @@ static void rockchip_dwc3_phy_setup(struct dwc3 *dwc3_reg,
                                    struct udevice *dev)
 {
        u32 reg;
-       const void *blob = gd->fdt_blob;
        u32 utmi_bits;
 
        /* Set dwc3 usb2 phy config */
        reg = readl(&dwc3_reg->g_usb2phycfg[0]);
 
-       if (fdtdec_get_bool(blob, dev_of_offset(dev),
-                           "snps,dis-enblslpm-quirk"))
+       if (dev_read_bool(dev, "snps,dis-enblslpm-quirk"))
                reg &= ~DWC3_GUSB2PHYCFG_ENBLSLPM;
 
-       utmi_bits = fdtdec_get_int(blob, dev_of_offset(dev),
-                                  "snps,phyif-utmi-bits", -1);
+       utmi_bits = dev_read_u32_default(dev, "snps,phyif-utmi-bits", -1);
        if (utmi_bits == 16) {
                reg |= DWC3_GUSB2PHYCFG_PHYIF;
                reg &= ~DWC3_GUSB2PHYCFG_USBTRDTIM_MASK;
@@ -106,12 +98,10 @@ static void rockchip_dwc3_phy_setup(struct dwc3 *dwc3_reg,
                reg |= DWC3_GUSB2PHYCFG_USBTRDTIM_8BIT;
        }
 
-       if (fdtdec_get_bool(blob, dev_of_offset(dev),
-                           "snps,dis-u2-freeclk-exists-quirk"))
+       if (dev_read_bool(dev, "snps,dis-u2-freeclk-exists-quirk"))
                reg &= ~DWC3_GUSB2PHYCFG_U2_FREECLK_EXISTS;
 
-       if (fdtdec_get_bool(blob, dev_of_offset(dev),
-                           "snps,dis-u2-susphy-quirk"))
+       if (dev_read_bool(dev, "snps,dis-u2-susphy-quirk"))
                reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
 
        writel(reg, &dwc3_reg->g_usb2phycfg[0]);
@@ -124,7 +114,7 @@ static int rockchip_xhci_core_init(struct rockchip_xhci *rkxhci,
 
        ret = dwc3_core_init(rkxhci->dwc3_reg);
        if (ret) {
-               debug("failed to initialize core\n");
+               pr_err("failed to initialize core\n");
                return ret;
        }
 
@@ -153,13 +143,17 @@ static int xhci_usb_probe(struct udevice *dev)
        hcor = (struct xhci_hcor *)((uint64_t)ctx->hcd +
                        HC_LENGTH(xhci_readl(&ctx->hcd->cr_capbase)));
 
-       /* setup the Vbus gpio here */
-       if (dm_gpio_is_valid(&plat->vbus_gpio))
-               dm_gpio_set_value(&plat->vbus_gpio, 1);
+       if (plat->vbus_supply) {
+               ret = regulator_set_enable(plat->vbus_supply, true);
+               if (ret) {
+                       pr_err("XHCI: failed to set VBus supply\n");
+                       return ret;
+               }
+       }
 
        ret = rockchip_xhci_core_init(ctx, dev);
        if (ret) {
-               debug("XHCI: failed to initialize controller\n");
+               pr_err("XHCI: failed to initialize controller\n");
                return ret;
        }
 
@@ -168,6 +162,7 @@ static int xhci_usb_probe(struct udevice *dev)
 
 static int xhci_usb_remove(struct udevice *dev)
 {
+       struct rockchip_xhci_platdata *plat = dev_get_platdata(dev);
        struct rockchip_xhci *ctx = dev_get_priv(dev);
        int ret;
 
@@ -178,11 +173,18 @@ static int xhci_usb_remove(struct udevice *dev)
        if (ret)
                return ret;
 
-       return 0;
+       if (plat->vbus_supply) {
+               ret = regulator_set_enable(plat->vbus_supply, false);
+               if (ret)
+                       pr_err("XHCI: failed to set VBus supply\n");
+       }
+
+       return ret;
 }
 
 static const struct udevice_id xhci_usb_ids[] = {
        { .compatible = "rockchip,rk3399-xhci" },
+       { .compatible = "rockchip,rk3328-xhci" },
        { }
 };
 
@@ -202,6 +204,7 @@ U_BOOT_DRIVER(usb_xhci) = {
 
 static const struct udevice_id usb_phy_ids[] = {
        { .compatible = "rockchip,rk3399-usb3-phy" },
+       { .compatible = "rockchip,rk3328-usb3-phy" },
        { }
 };