1 files changed, 14 insertions, 20 deletions

diff --git a/drivers/usb/host/ehci-ppc-of.c b/drivers/usb/host/ehci-ppc-of.c
index 86da09c0f8d0..8063b9d3aebd 100644
--- a/drivers/usb/host/ehci-ppc-of.c
+++ b/drivers/usb/host/ehci-ppc-of.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * EHCI HCD (Host Controller Driver) for USB.
  *
@@ -16,6 +17,8 @@
 #include <linux/signal.h>
 
 #include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 
 
@@ -28,7 +31,7 @@ static const struct hc_driver ehci_ppc_of_hc_driver = {
 	 * generic hardware linkage
 	 */
 	.irq			= ehci_irq,
-	.flags			= HCD_MEMORY | HCD_USB2,
+	.flags			= HCD_MEMORY | HCD_DMA | HCD_USB2 | HCD_BH,
 
 	/*
 	 * basic lifecycle operations
@@ -116,8 +119,9 @@ static int ehci_hcd_ppc_of_probe(struct platform_device *op)
 	hcd->rsrc_len = resource_size(&res);
 
 	irq = irq_of_parse_and_map(dn, 0);
-	if (irq == NO_IRQ) {
-		printk(KERN_ERR "%s: irq_of_parse_and_map failed\n", __FILE__);
+	if (!irq) {
+		dev_err(&op->dev, "%s: irq_of_parse_and_map failed\n",
+			__FILE__);
 		rv = -EBUSY;
 		goto err_irq;
 	}
@@ -144,15 +148,16 @@ static int ehci_hcd_ppc_of_probe(struct platform_device *op)
 		} else {
 			ehci->has_amcc_usb23 = 1;
 		}
+		of_node_put(np);
 	}
 
-	if (of_get_property(dn, "big-endian", NULL)) {
+	if (of_property_read_bool(dn, "big-endian")) {
 		ehci->big_endian_mmio = 1;
 		ehci->big_endian_desc = 1;
 	}
-	if (of_get_property(dn, "big-endian-regs", NULL))
+	if (of_property_read_bool(dn, "big-endian-regs"))
 		ehci->big_endian_mmio = 1;
-	if (of_get_property(dn, "big-endian-desc", NULL))
+	if (of_property_read_bool(dn, "big-endian-desc"))
 		ehci->big_endian_desc = 1;
 
 	ehci->caps = hcd->regs;
@@ -167,6 +172,7 @@ static int ehci_hcd_ppc_of_probe(struct platform_device *op)
 	if (rv)
 		goto err_ioremap;
 
+	device_wakeup_enable(hcd->self.controller);
 	return 0;
 
 err_ioremap:
@@ -178,7 +184,7 @@ err_irq:
 }
 
 
-static int ehci_hcd_ppc_of_remove(struct platform_device *op)
+static void ehci_hcd_ppc_of_remove(struct platform_device *op)
 {
 	struct usb_hcd *hcd = platform_get_drvdata(op);
 	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
@@ -210,17 +216,6 @@ static int ehci_hcd_ppc_of_remove(struct platform_device *op)
 		}
 	}
 	usb_put_hcd(hcd);
-
-	return 0;
-}
-
-
-static void ehci_hcd_ppc_of_shutdown(struct platform_device *op)
-{
-	struct usb_hcd *hcd = platform_get_drvdata(op);
-
-	if (hcd->driver->shutdown)
-		hcd->driver->shutdown(hcd);
 }
 
 
@@ -236,10 +231,9 @@ MODULE_DEVICE_TABLE(of, ehci_hcd_ppc_of_match);
 static struct platform_driver ehci_hcd_ppc_of_driver = {
 	.probe		= ehci_hcd_ppc_of_probe,
 	.remove		= ehci_hcd_ppc_of_remove,
-	.shutdown	= ehci_hcd_ppc_of_shutdown,
+	.shutdown	= usb_hcd_platform_shutdown,
 	.driver = {
 		.name = "ppc-of-ehci",
-		.owner = THIS_MODULE,
 		.of_match_table = ehci_hcd_ppc_of_match,
 	},
 };