linux-kernel - [PATCH 2/2] drivers:usb:fsl: Use overrides structure for fsl hc driver

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Date:	Tue, 12 May 2015 17:53:52 +0530
From:	Ramneek Mehresh <ramneek.mehresh@...escale.com>
To:	<linux-kernel@...r.kernel.org>
CC:	<linux-usb@...r.kernel.org>, <stern@...land.harvard.edu>,
	<gregkh@...uxfoundation.org>,
	Ramneek Mehresh <ramneek.mehresh@...escale.com>
Subject: [PATCH 2/2] drivers:usb:fsl: Use overrides structure for fsl hc driver

Use overrides structure for fsl ehci host controller driver

Signed-off-by: Ramneek Mehresh <ramneek.mehresh@...escale.com>
---
 drivers/usb/host/ehci-fsl.c | 54 +++++++++------------------------------------
 1 file changed, 10 insertions(+), 44 deletions(-)

diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index 42628e5..81c8df0 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -42,6 +42,8 @@
 #define DRIVER_DESC "Fsl EHCI driver"
 #define DRV_NAME "ehci-fsl"
 
+static struct hc_driver __read_mostly fsl_ehci_hc_driver;
+
 /* configure so an HC device and id are always provided */
 /* always called with process context; sleeping is OK */
 
@@ -613,51 +615,9 @@ static int ehci_start_port_reset(struct usb_hcd *hcd, unsigned port)
 #define ehci_start_port_reset	NULL
 #endif /* CONFIG_USB_OTG */
 
-
-static const struct hc_driver fsl_ehci_hc_driver = {
-	.description = hcd_name,
-	.product_desc = "Freescale On-Chip EHCI Host Controller",
-	.hcd_priv_size = sizeof(struct ehci_fsl),
-
-	/*
-	 * generic hardware linkage
-	 */
-	.irq = ehci_irq,
-	.flags = HCD_USB2 | HCD_MEMORY | HCD_BH,
-
-	/*
-	 * basic lifecycle operations
-	 */
+static struct ehci_driver_overrides ehci_fsl_overrides __initdata = {
+	.extra_priv_size = sizeof(struct ehci_fsl),
 	.reset = ehci_fsl_setup,
-	.start = ehci_run,
-	.stop = ehci_stop,
-	.shutdown = ehci_shutdown,
-
-	/*
-	 * managing i/o requests and associated device resources
-	 */
-	.urb_enqueue = ehci_urb_enqueue,
-	.urb_dequeue = ehci_urb_dequeue,
-	.endpoint_disable = ehci_endpoint_disable,
-	.endpoint_reset = ehci_endpoint_reset,
-
-	/*
-	 * scheduling support
-	 */
-	.get_frame_number = ehci_get_frame,
-
-	/*
-	 * root hub support
-	 */
-	.hub_status_data = ehci_hub_status_data,
-	.hub_control = ehci_hub_control,
-	.bus_suspend = ehci_bus_suspend,
-	.bus_resume = ehci_bus_resume,
-	.start_port_reset = ehci_start_port_reset,
-	.relinquish_port = ehci_relinquish_port,
-	.port_handed_over = ehci_port_handed_over,
-
-	.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
 };
 
 /*
@@ -709,6 +669,12 @@ static int __init ehci_fsl_init(void)
 
 	pr_info(DRV_NAME ": " DRIVER_DESC "\n");
 
+	ehci_init_driver(&fsl_ehci_hc_driver, &ehci_fsl_overrides);
+
+	fsl_ehci_hc_driver.product_desc =
+			"Freescale On-Chip EHCI Host Controller";
+	fsl_ehci_hc_driver.start_port_reset = ehci_start_port_reset;
+
 	return platform_driver_register(&ehci_fsl_driver);
 }
 module_init(ehci_fsl_init);
-- 
1.8.3.1

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