[PATCH 01/24 v2] USB: EHCI: remove IXP4xx EHCI driver

[PATCH 01/24 v2] USB: EHCI: remove IXP4xx EHCI driver

[Florian Fainelli]

This driver is not registered by any in-tree user. If needed it the EHCI
driver can be reinstatied using the ehci-platform driver with caps_offset to
0x100.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
Changes since v1:
- slightly reworded commit message

 drivers/usb/host/ehci-hcd.c    |    5 --
 drivers/usb/host/ehci-ixp4xx.c |  139 ----------------------------------------
 2 files changed, 144 deletions(-)
 delete mode 100644 drivers/usb/host/ehci-ixp4xx.c

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 6bf6c42..442f774 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1249,11 +1249,6 @@ MODULE_LICENSE ("GPL");
 #define	PLATFORM_DRIVER		ehci_orion_driver
 #endif
 
-#ifdef CONFIG_ARCH_IXP4XX
-#include "ehci-ixp4xx.c"
-#define	PLATFORM_DRIVER		ixp4xx_ehci_driver
-#endif
-
 #ifdef CONFIG_USB_W90X900_EHCI
 #include "ehci-w90x900.c"
 #define	PLATFORM_DRIVER		ehci_hcd_w90x900_driver
diff --git a/drivers/usb/host/ehci-ixp4xx.c b/drivers/usb/host/ehci-ixp4xx.c
deleted file mode 100644
index f224c0a..0000000
--- a/drivers/usb/host/ehci-ixp4xx.c
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * IXP4XX EHCI Host Controller Driver
- *
- * Author: Vladimir Barinov <vbarinov@embeddedalley.com>
- *
- * Based on "ehci-fsl.c" by Randy Vinson <rvinson@mvista.com>
- *
- * 2007 (c) MontaVista Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-
-#include <linux/platform_device.h>
-
-static int ixp4xx_ehci_init(struct usb_hcd *hcd)
-{
-	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
-	int retval = 0;
-
-	ehci->big_endian_desc = 1;
-	ehci->big_endian_mmio = 1;
-
-	ehci->caps = hcd->regs + 0x100;
-
-	hcd->has_tt = 1;
-
-	retval = ehci_setup(hcd);
-	if (retval)
-		return retval;
-
-	ehci_port_power(ehci, 0);
-
-	return retval;
-}
-
-static const struct hc_driver ixp4xx_ehci_hc_driver = {
-	.description		= hcd_name,
-	.product_desc		= "IXP4XX EHCI Host Controller",
-	.hcd_priv_size		= sizeof(struct ehci_hcd),
-	.irq			= ehci_irq,
-	.flags			= HCD_MEMORY | HCD_USB2,
-	.reset			= ixp4xx_ehci_init,
-	.start			= ehci_run,
-	.stop			= ehci_stop,
-	.shutdown		= ehci_shutdown,
-	.urb_enqueue		= ehci_urb_enqueue,
-	.urb_dequeue		= ehci_urb_dequeue,
-	.endpoint_disable	= ehci_endpoint_disable,
-	.endpoint_reset		= ehci_endpoint_reset,
-	.get_frame_number	= ehci_get_frame,
-	.hub_status_data	= ehci_hub_status_data,
-	.hub_control		= ehci_hub_control,
-#if defined(CONFIG_PM)
-	.bus_suspend		= ehci_bus_suspend,
-	.bus_resume		= ehci_bus_resume,
-#endif
-	.relinquish_port	= ehci_relinquish_port,
-	.port_handed_over	= ehci_port_handed_over,
-
-	.clear_tt_buffer_complete	= ehci_clear_tt_buffer_complete,
-};
-
-static int ixp4xx_ehci_probe(struct platform_device *pdev)
-{
-	struct usb_hcd *hcd;
-	const struct hc_driver *driver = &ixp4xx_ehci_hc_driver;
-	struct resource *res;
-	int irq;
-	int retval;
-
-	if (usb_disabled())
-		return -ENODEV;
-
-	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (!res) {
-		dev_err(&pdev->dev,
-			"Found HC with no IRQ. Check %s setup!\n",
-			dev_name(&pdev->dev));
-		return -ENODEV;
-	}
-	irq = res->start;
-
-	hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
-	if (!hcd) {
-		retval = -ENOMEM;
-		goto fail_create_hcd;
-	}
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev,
-			"Found HC with no register addr. Check %s setup!\n",
-			dev_name(&pdev->dev));
-		retval = -ENODEV;
-		goto fail_request_resource;
-	}
-	hcd->rsrc_start = res->start;
-	hcd->rsrc_len = resource_size(res);
-
-	hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (hcd->regs == NULL) {
-		dev_dbg(&pdev->dev, "error mapping memory\n");
-		retval = -EFAULT;
-		goto fail_request_resource;
-	}
-
-	retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
-	if (retval)
-		goto fail_request_resource;
-
-	return retval;
-
-fail_request_resource:
-	usb_put_hcd(hcd);
-fail_create_hcd:
-	dev_err(&pdev->dev, "init %s fail, %d\n", dev_name(&pdev->dev), retval);
-	return retval;
-}
-
-static int ixp4xx_ehci_remove(struct platform_device *pdev)
-{
-	struct usb_hcd *hcd = platform_get_drvdata(pdev);
-
-	usb_remove_hcd(hcd);
-	usb_put_hcd(hcd);
-
-	return 0;
-}
-
-MODULE_ALIAS("platform:ixp4xx-ehci");
-
-static struct platform_driver ixp4xx_ehci_driver = {
-	.probe = ixp4xx_ehci_probe,
-	.remove = ixp4xx_ehci_remove,
-	.driver = {
-		.name = "ixp4xx-ehci",
-	},
-};
-- 
1.7.9.5

[PATCH 02/24 v2] MIPS: Loongson 1B: use ehci-platform instead of ehci-ls1x.

[Florian Fainelli]

The Loongson 1B EHCI driver does nothing more than what the EHCI platform
driver already does, so use the generic implementation.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
No changes since v1

 arch/mips/configs/ls1b_defconfig      |    1 +
 arch/mips/loongson1/common/platform.c |    8 +++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/mips/configs/ls1b_defconfig b/arch/mips/configs/ls1b_defconfig
index 80cff8b..7eb7554 100644
--- a/arch/mips/configs/ls1b_defconfig
+++ b/arch/mips/configs/ls1b_defconfig
@@ -76,6 +76,7 @@ CONFIG_HID_GENERIC=m
 CONFIG_USB=y
 CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
 CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_HCD_PLATFORM=y
 # CONFIG_USB_EHCI_TT_NEWSCHED is not set
 CONFIG_USB_STORAGE=m
 CONFIG_USB_SERIAL=m
diff --git a/arch/mips/loongson1/common/platform.c b/arch/mips/loongson1/common/platform.c
index e92d59c..2874bf2 100644
--- a/arch/mips/loongson1/common/platform.c
+++ b/arch/mips/loongson1/common/platform.c
@@ -13,6 +13,7 @@
 #include <linux/phy.h>
 #include <linux/serial_8250.h>
 #include <linux/stmmac.h>
+#include <linux/usb/ehci_pdriver.h>
 #include <asm-generic/sizes.h>
 
 #include <loongson1.h>
@@ -107,13 +108,18 @@ static struct resource ls1x_ehci_resources[] = {
 	},
 };
 
+static struct usb_ehci_pdata ls1x_ehci_pdata = {
+	.port_power_off	= 1,
+};
+
 struct platform_device ls1x_ehci_device = {
-	.name		= "ls1x-ehci",
+	.name		= "ehci-platform",
 	.id		= -1,
 	.num_resources	= ARRAY_SIZE(ls1x_ehci_resources),
 	.resource	= ls1x_ehci_resources,
 	.dev		= {
 		.dma_mask = &ls1x_ehci_dmamask,
+		.platform_data = &ls1x_ehci_pdata,
 	},
 };
 
-- 
1.7.9.5

[PATCH 03/24 v2] USB: EHCI: remove Loongson 1B EHCI driver.

[Florian Fainelli]

The platform code registering the Loongson 1B EHCI driver has now been
converted to register the ehci-platform driver instead, thus obsoleting the
ehci-ls1x driver, which can be removed.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
Changes since v1:
- reworded commit message

 drivers/usb/host/ehci-hcd.c  |    5 --
 drivers/usb/host/ehci-ls1x.c |  147 ------------------------------------------
 2 files changed, 152 deletions(-)
 delete mode 100644 drivers/usb/host/ehci-ls1x.c

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 442f774..2f517d9 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1319,11 +1319,6 @@ MODULE_LICENSE ("GPL");
 #define        PLATFORM_DRIVER         ehci_mv_driver
 #endif
 
-#ifdef CONFIG_MACH_LOONGSON1
-#include "ehci-ls1x.c"
-#define PLATFORM_DRIVER		ehci_ls1x_driver
-#endif
-
 #ifdef CONFIG_MIPS_SEAD3
 #include "ehci-sead3.c"
 #define	PLATFORM_DRIVER		ehci_hcd_sead3_driver
diff --git a/drivers/usb/host/ehci-ls1x.c b/drivers/usb/host/ehci-ls1x.c
deleted file mode 100644
index ca75965..0000000
--- a/drivers/usb/host/ehci-ls1x.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- *  Bus Glue for Loongson LS1X built-in EHCI controller.
- *
- *  Copyright (c) 2012 Zhang, Keguang <keguang.zhang@gmail.com>
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License version 2 as published
- *  by the Free Software Foundation.
- */
-
-
-#include <linux/platform_device.h>
-
-static int ehci_ls1x_reset(struct usb_hcd *hcd)
-{
-	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
-	int ret;
-
-	ehci->caps = hcd->regs;
-
-	ret = ehci_setup(hcd);
-	if (ret)
-		return ret;
-
-	ehci_port_power(ehci, 0);
-
-	return 0;
-}
-
-static const struct hc_driver ehci_ls1x_hc_driver = {
-	.description		= hcd_name,
-	.product_desc		= "LOONGSON1 EHCI",
-	.hcd_priv_size		= sizeof(struct ehci_hcd),
-
-	/*
-	 * generic hardware linkage
-	 */
-	.irq			= ehci_irq,
-	.flags			= HCD_MEMORY | HCD_USB2,
-
-	/*
-	 * basic lifecycle operations
-	 */
-	.reset			= ehci_ls1x_reset,
-	.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,
-	.relinquish_port	= ehci_relinquish_port,
-	.port_handed_over	= ehci_port_handed_over,
-
-	.clear_tt_buffer_complete	= ehci_clear_tt_buffer_complete,
-};
-
-static int ehci_hcd_ls1x_probe(struct platform_device *pdev)
-{
-	struct usb_hcd *hcd;
-	struct resource *res;
-	int irq;
-	int ret;
-
-	pr_debug("initializing loongson1 ehci USB Controller\n");
-
-	if (usb_disabled())
-		return -ENODEV;
-
-	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (!res) {
-		dev_err(&pdev->dev,
-			"Found HC with no IRQ. Check %s setup!\n",
-			dev_name(&pdev->dev));
-		return -ENODEV;
-	}
-	irq = res->start;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev,
-			"Found HC with no register addr. Check %s setup!\n",
-			dev_name(&pdev->dev));
-		return -ENODEV;
-	}
-
-	hcd = usb_create_hcd(&ehci_ls1x_hc_driver, &pdev->dev,
-				dev_name(&pdev->dev));
-	if (!hcd)
-		return -ENOMEM;
-	hcd->rsrc_start	= res->start;
-	hcd->rsrc_len	= resource_size(res);
-
-	hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (hcd->regs == NULL) {
-		dev_dbg(&pdev->dev, "error mapping memory\n");
-		ret = -EFAULT;
-		goto err_put_hcd;
-	}
-
-	ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
-	if (ret)
-		goto err_put_hcd;
-
-	return ret;
-
-err_put_hcd:
-	usb_put_hcd(hcd);
-	return ret;
-}
-
-static int ehci_hcd_ls1x_remove(struct platform_device *pdev)
-{
-	struct usb_hcd *hcd = platform_get_drvdata(pdev);
-
-	usb_remove_hcd(hcd);
-	usb_put_hcd(hcd);
-
-	return 0;
-}
-
-static struct platform_driver ehci_ls1x_driver = {
-	.probe = ehci_hcd_ls1x_probe,
-	.remove = ehci_hcd_ls1x_remove,
-	.shutdown = usb_hcd_platform_shutdown,
-	.driver = {
-		.name = "ls1x-ehci",
-		.owner	= THIS_MODULE,
-	},
-};
-
-MODULE_ALIAS(PLATFORM_MODULE_PREFIX "ls1x-ehci");
-- 
1.7.9.5

[PATCH 04/24 v2] MIPS: Netlogic: use ehci-platform driver

[Florian Fainelli]

The EHCI platform driver is suitable for use by the Netlogic XLR platform
since there is nothing specific that the EHCI XLR platform driver does.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
Changes since v1:
- really change driver name to "ehci-platform"
- slightly reworded commit message

 arch/mips/netlogic/xlr/platform.c |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/mips/netlogic/xlr/platform.c b/arch/mips/netlogic/xlr/platform.c
index 71b44d8..144c5c6 100644
--- a/arch/mips/netlogic/xlr/platform.c
+++ b/arch/mips/netlogic/xlr/platform.c
@@ -15,6 +15,7 @@
 #include <linux/serial_8250.h>
 #include <linux/serial_reg.h>
 #include <linux/i2c.h>
+#include <linux/usb/ehci_pdriver.h>
 
 #include <asm/netlogic/haldefs.h>
 #include <asm/netlogic/xlr/iomap.h>
@@ -123,8 +124,12 @@ static u64 xls_usb_dmamask = ~(u32)0;
 		},							\
 	}
 
+static struct usb_ehci_pdata xls_usb_ehci_pdata = {
+	.caps_offset	= 0,
+};
+
 static struct platform_device xls_usb_ehci_device =
-			 USB_PLATFORM_DEV("ehci-xls", 0, PIC_USB_IRQ);
+			 USB_PLATFORM_DEV("ehci-platform", 0, PIC_USB_IRQ);
 static struct platform_device xls_usb_ohci_device_0 =
 			 USB_PLATFORM_DEV("ohci-xls-0", 1, PIC_USB_IRQ);
 static struct platform_device xls_usb_ohci_device_1 =
@@ -172,6 +177,7 @@ int xls_platform_usb_init(void)
 	memres = CPHYSADDR((unsigned long)usb_mmio);
 	xls_usb_ehci_device.resource[0].start = memres;
 	xls_usb_ehci_device.resource[0].end = memres + 0x400 - 1;
+	xls_usb_ehci_device.dev.platform_data = &xls_usb_ehci_pdata;
 
 	memres += 0x400;
 	xls_usb_ohci_device_0.resource[0].start = memres;
-- 
1.7.9.5

[PATCH 05/24 v2] USB: EHCI: remove Netlogic XLS EHCI driver

[Florian Fainelli]

The platform code has been migrated to register the ehci-platform driver, thus
obsoleting the ehci-xls driver, which can be removed.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
Changes since v1:
- reworded commit message

 drivers/usb/host/ehci-hcd.c |    5 --
 drivers/usb/host/ehci-xls.c |  142 -------------------------------------------
 2 files changed, 147 deletions(-)
 delete mode 100644 drivers/usb/host/ehci-xls.c

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 2f517d9..f2a9982 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1309,11 +1309,6 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER		ehci_grlib_driver
 #endif
 
-#ifdef CONFIG_CPU_XLR
-#include "ehci-xls.c"
-#define PLATFORM_DRIVER		ehci_xls_driver
-#endif
-
 #ifdef CONFIG_USB_EHCI_MV
 #include "ehci-mv.c"
 #define        PLATFORM_DRIVER         ehci_mv_driver
diff --git a/drivers/usb/host/ehci-xls.c b/drivers/usb/host/ehci-xls.c
deleted file mode 100644
index 8dc6a22..0000000
--- a/drivers/usb/host/ehci-xls.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * EHCI HCD for Netlogic XLS processors.
- *
- * (C) Copyright 2011 Netlogic Microsystems Inc.
- *
- *  Based on various ehci-*.c drivers
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive for
- * more details.
- */
-
-#include <linux/platform_device.h>
-
-static int ehci_xls_setup(struct usb_hcd *hcd)
-{
-	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
-
-	ehci->caps = hcd->regs;
-
-	return ehci_setup(hcd);
-}
-
-int ehci_xls_probe_internal(const struct hc_driver *driver,
-	struct platform_device *pdev)
-{
-	struct usb_hcd  *hcd;
-	struct resource *res;
-	int retval, irq;
-
-	/* Get our IRQ from an earlier registered Platform Resource */
-	irq = platform_get_irq(pdev, 0);
-	if (irq < 0) {
-		dev_err(&pdev->dev, "Found HC with no IRQ. Check %s setup!\n",
-				dev_name(&pdev->dev));
-		return -ENODEV;
-	}
-
-	/* Get our Memory Handle */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "Error: MMIO Handle %s setup!\n",
-				dev_name(&pdev->dev));
-		return -ENODEV;
-	}
-	hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
-	if (!hcd) {
-		retval = -ENOMEM;
-		goto err1;
-	}
-
-	hcd->rsrc_start = res->start;
-	hcd->rsrc_len = resource_size(res);
-
-	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
-				driver->description)) {
-		dev_dbg(&pdev->dev, "controller already in use\n");
-		retval = -EBUSY;
-		goto err2;
-	}
-	hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
-
-	if (hcd->regs == NULL) {
-		dev_dbg(&pdev->dev, "error mapping memory\n");
-		retval = -EFAULT;
-		goto err3;
-	}
-
-	retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
-	if (retval != 0)
-		goto err4;
-	return retval;
-
-err4:
-	iounmap(hcd->regs);
-err3:
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-err2:
-	usb_put_hcd(hcd);
-err1:
-	dev_err(&pdev->dev, "init %s fail, %d\n", dev_name(&pdev->dev),
-			retval);
-	return retval;
-}
-
-static struct hc_driver ehci_xls_hc_driver = {
-	.description	= hcd_name,
-	.product_desc	= "XLS EHCI Host Controller",
-	.hcd_priv_size	= sizeof(struct ehci_hcd),
-	.irq		= ehci_irq,
-	.flags		= HCD_USB2 | HCD_MEMORY,
-	.reset		= ehci_xls_setup,
-	.start		= ehci_run,
-	.stop		= ehci_stop,
-	.shutdown	= ehci_shutdown,
-
-	.urb_enqueue	= ehci_urb_enqueue,
-	.urb_dequeue	= ehci_urb_dequeue,
-	.endpoint_disable = ehci_endpoint_disable,
-	.endpoint_reset	= ehci_endpoint_reset,
-
-	.get_frame_number = ehci_get_frame,
-
-	.hub_status_data = ehci_hub_status_data,
-	.hub_control	= ehci_hub_control,
-	.bus_suspend	= ehci_bus_suspend,
-	.bus_resume	= ehci_bus_resume,
-	.relinquish_port = ehci_relinquish_port,
-	.port_handed_over = ehci_port_handed_over,
-
-	.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
-};
-
-static int ehci_xls_probe(struct platform_device *pdev)
-{
-	if (usb_disabled())
-		return -ENODEV;
-
-	return ehci_xls_probe_internal(&ehci_xls_hc_driver, pdev);
-}
-
-static int ehci_xls_remove(struct platform_device *pdev)
-{
-	struct usb_hcd *hcd = platform_get_drvdata(pdev);
-
-	usb_remove_hcd(hcd);
-	iounmap(hcd->regs);
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-	usb_put_hcd(hcd);
-	return 0;
-}
-
-MODULE_ALIAS("ehci-xls");
-
-static struct platform_driver ehci_xls_driver = {
-	.probe		= ehci_xls_probe,
-	.remove		= ehci_xls_remove,
-	.shutdown	= usb_hcd_platform_shutdown,
-	.driver		= {
-		.name = "ehci-xls",
-	},
-};
-- 
1.7.9.5

[PATCH 06/24 v2] USB: EHCI: add no_io_watchdog platform_data parameter to ehci-platform

[Florian Fainelli]

Enhance the ehci-platform driver to also accept no_io_watchdog as a platform
data parameter. When no_io_watchdog is set to 1, the ehci controller will set
ehci->need_io_watchdog to 0. Since most EHCI controllers do need the I/O
watchdog to be on, only let those which need it to turn the watchdog off.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
Changes since v1:
- reworked patch to introduce "no_io_watchdog" instead of "need_io_watchdog"
- reworded commit message accordingly

 drivers/usb/host/ehci-platform.c |    2 ++
 include/linux/usb/ehci_pdriver.h |    3 +++
 2 files changed, 5 insertions(+)

diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
index 764e010..83b486e 100644
--- a/drivers/usb/host/ehci-platform.c
+++ b/drivers/usb/host/ehci-platform.c
@@ -32,6 +32,8 @@ static int ehci_platform_reset(struct usb_hcd *hcd)
 	ehci->has_synopsys_hc_bug = pdata->has_synopsys_hc_bug;
 	ehci->big_endian_desc = pdata->big_endian_desc;
 	ehci->big_endian_mmio = pdata->big_endian_mmio;
+	if (pdata->no_io_watchdog)
+		ehci->need_io_watchdog = 0;
 
 	ehci->caps = hcd->regs + pdata->caps_offset;
 	retval = ehci_setup(hcd);
diff --git a/include/linux/usb/ehci_pdriver.h b/include/linux/usb/ehci_pdriver.h
index c9d09f8..67ac74b 100644
--- a/include/linux/usb/ehci_pdriver.h
+++ b/include/linux/usb/ehci_pdriver.h
@@ -29,6 +29,8 @@
  *			initialization.
  * @port_power_off:	set to 1 if the controller needs to be powered down
  *			after initialization.
+ * @no_io_watchdog:	set to 1 if the controller does not need the I/O
+ *			watchdog to run.
  *
  * These are general configuration options for the EHCI controller. All of
  * these options are activating more or less workarounds for some hardware.
@@ -41,6 +43,7 @@ struct usb_ehci_pdata {
 	unsigned	big_endian_mmio:1;
 	unsigned	port_power_on:1;
 	unsigned	port_power_off:1;
+	unsigned	no_io_watchdog:1;
 
 	/* Turn on all power and clocks */
 	int (*power_on)(struct platform_device *pdev);
-- 
1.7.9.5

Re: [PATCH 06/24 v2] USB: EHCI: add no_io_watchdog platform_data parameter to ehci-platform

[Alan Stern]

On Thu, 4 Oct 2012, Florian Fainelli wrote:

> Enhance the ehci-platform driver to also accept no_io_watchdog as a platform
> data parameter. When no_io_watchdog is set to 1, the ehci controller will set
> ehci->need_io_watchdog to 0. Since most EHCI controllers do need the I/O
> watchdog to be on, only let those which need it to turn the watchdog off.
> 
> Signed-off-by: Florian Fainelli <florian@openwrt.org>
> ---
> Changes since v1:
> - reworked patch to introduce "no_io_watchdog" instead of "need_io_watchdog"
> - reworded commit message accordingly

Very good except for one thing...

> --- a/drivers/usb/host/ehci-platform.c
> +++ b/drivers/usb/host/ehci-platform.c
> @@ -32,6 +32,8 @@ static int ehci_platform_reset(struct usb_hcd *hcd)
>  	ehci->has_synopsys_hc_bug = pdata->has_synopsys_hc_bug;
>  	ehci->big_endian_desc = pdata->big_endian_desc;
>  	ehci->big_endian_mmio = pdata->big_endian_mmio;
> +	if (pdata->no_io_watchdog)
> +		ehci->need_io_watchdog = 0;
>  
>  	ehci->caps = hcd->regs + pdata->caps_offset;
>  	retval = ehci_setup(hcd);

ehci_setup calls ehci_init, which unconditionally sets 
need_io_watchdog.  Your new "if" statement has to come after this call.

Alan Stern

[PATCH 07/24 v2] MIPS: Alchemy: use the ehci platform driver

[Florian Fainelli]

Use the ehci platform driver power_{on,suspend,off} callbacks to perform the
USB block gate enabling/disabling as what the ehci-au1xxx.c driver does.
Update the db1200 and db1300 defconfigs to now select the EHCI platform
driver.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
Changes since v1:
- update impacted alchemy defconfigs accordingly

 arch/mips/alchemy/common/platform.c |   23 ++++++++++++++++++++++-
 arch/mips/configs/db1200_defconfig  |    1 +
 arch/mips/configs/db1300_defconfig  |    1 +
 3 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/arch/mips/alchemy/common/platform.c b/arch/mips/alchemy/common/platform.c
index c0f3ce6..b9a5f6d 100644
--- a/arch/mips/alchemy/common/platform.c
+++ b/arch/mips/alchemy/common/platform.c
@@ -17,6 +17,7 @@
 #include <linux/platform_device.h>
 #include <linux/serial_8250.h>
 #include <linux/slab.h>
+#include <linux/usb/ehci_pdriver.h>
 
 #include <asm/mach-au1x00/au1000.h>
 #include <asm/mach-au1x00/au1xxx_dbdma.h>
@@ -122,6 +123,25 @@ static void __init alchemy_setup_uarts(int ctype)
 static u64 alchemy_ohci_dmamask = DMA_BIT_MASK(32);
 static u64 __maybe_unused alchemy_ehci_dmamask = DMA_BIT_MASK(32);
 
+/* Power on callback for the ehci platform driver */
+static int alchemy_ehci_power_on(struct platform_device *pdev)
+{
+	return alchemy_usb_control(ALCHEMY_USB_EHCI0, 1);
+}
+
+/* Power off/suspend callback for the ehci platform driver */
+static void alchemy_ehci_power_off(struct platform_device *pdev)
+{
+	alchemy_usb_control(ALCHEMY_USB_EHCI0, 0);
+}
+
+static struct usb_ehci_pdata alchemy_ehci_pdata = {
+	.no_io_watchdog	= 1,
+	.power_on	= alchemy_ehci_power_on,
+	.power_off	= alchemy_ehci_power_off,
+	.power_suspend	= alchemy_ehci_power_off,
+};
+
 static unsigned long alchemy_ohci_data[][2] __initdata = {
 	[ALCHEMY_CPU_AU1000] = { AU1000_USB_OHCI_PHYS_ADDR, AU1000_USB_HOST_INT },
 	[ALCHEMY_CPU_AU1500] = { AU1000_USB_OHCI_PHYS_ADDR, AU1500_USB_HOST_INT },
@@ -188,9 +208,10 @@ static void __init alchemy_setup_usb(int ctype)
 		res[1].start = alchemy_ehci_data[ctype][1];
 		res[1].end = res[1].start;
 		res[1].flags = IORESOURCE_IRQ;
-		pdev->name = "au1xxx-ehci";
+		pdev->name = "ehci-platform";
 		pdev->id = 0;
 		pdev->dev.dma_mask = &alchemy_ehci_dmamask;
+		pdev->dev.platform_data = &alchemy_ehci_pdata;
 
 		if (platform_device_register(pdev))
 			printk(KERN_INFO "Alchemy USB: cannot add EHCI0\n");
diff --git a/arch/mips/configs/db1200_defconfig b/arch/mips/configs/db1200_defconfig
index 1f69249..d31ac85 100644
--- a/arch/mips/configs/db1200_defconfig
+++ b/arch/mips/configs/db1200_defconfig
@@ -117,6 +117,7 @@ CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
 # CONFIG_USB_DEVICE_CLASS is not set
 CONFIG_USB_DYNAMIC_MINORS=y
 CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_HCD_PLATFORM=y
 CONFIG_USB_EHCI_ROOT_HUB_TT=y
 CONFIG_USB_OHCI_HCD=y
 CONFIG_MMC=y
diff --git a/arch/mips/configs/db1300_defconfig b/arch/mips/configs/db1300_defconfig
index 3590ab5..717e7b2 100644
--- a/arch/mips/configs/db1300_defconfig
+++ b/arch/mips/configs/db1300_defconfig
@@ -288,6 +288,7 @@ CONFIG_USB_ARCH_HAS_EHCI=y
 CONFIG_USB=y
 CONFIG_USB_DYNAMIC_MINORS=y
 CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_HCD_PLATFORM=y
 CONFIG_USB_EHCI_ROOT_HUB_TT=y
 CONFIG_USB_EHCI_TT_NEWSCHED=y
 CONFIG_USB_OHCI_HCD=y
-- 
1.7.9.5

[PATCH 08/24 v2] USB: EHCI: remove Alchemy EHCI driver

[Florian Fainelli]

The platform code has been converted to use the ehci-platform driver instead
thus obsoleting the ehci-au1xxx driver, which can be removed.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
Changes since v1:
- reworded commit message

 drivers/usb/host/ehci-au1xxx.c |  184 ----------------------------------------
 drivers/usb/host/ehci-hcd.c    |    5 --
 2 files changed, 189 deletions(-)
 delete mode 100644 drivers/usb/host/ehci-au1xxx.c

diff --git a/drivers/usb/host/ehci-au1xxx.c b/drivers/usb/host/ehci-au1xxx.c
deleted file mode 100644
index 65c945e..0000000
--- a/drivers/usb/host/ehci-au1xxx.c
+++ /dev/null
@@ -1,184 +0,0 @@
-/*
- * EHCI HCD (Host Controller Driver) for USB.
- *
- * Bus Glue for AMD Alchemy Au1xxx
- *
- * Based on "ohci-au1xxx.c" by Matt Porter <mporter@kernel.crashing.org>
- *
- * Modified for AMD Alchemy Au1200 EHC
- *  by K.Boge <karsten.boge@amd.com>
- *
- * This file is licenced under the GPL.
- */
-
-#include <linux/platform_device.h>
-#include <asm/mach-au1x00/au1000.h>
-
-
-extern int usb_disabled(void);
-
-static int au1xxx_ehci_setup(struct usb_hcd *hcd)
-{
-	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
-	int ret;
-
-	ehci->caps = hcd->regs;
-	ret = ehci_setup(hcd);
-
-	ehci->need_io_watchdog = 0;
-	return ret;
-}
-
-static const struct hc_driver ehci_au1xxx_hc_driver = {
-	.description		= hcd_name,
-	.product_desc		= "Au1xxx EHCI",
-	.hcd_priv_size		= sizeof(struct ehci_hcd),
-
-	/*
-	 * generic hardware linkage
-	 */
-	.irq			= ehci_irq,
-	.flags			= HCD_MEMORY | HCD_USB2,
-
-	/*
-	 * basic lifecycle operations
-	 *
-	 * FIXME -- ehci_init() doesn't do enough here.
-	 * See ehci-ppc-soc for a complete implementation.
-	 */
-	.reset			= au1xxx_ehci_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,
-	.relinquish_port	= ehci_relinquish_port,
-	.port_handed_over	= ehci_port_handed_over,
-
-	.clear_tt_buffer_complete	= ehci_clear_tt_buffer_complete,
-};
-
-static int ehci_hcd_au1xxx_drv_probe(struct platform_device *pdev)
-{
-	struct usb_hcd *hcd;
-	struct resource *res;
-	int ret;
-
-	if (usb_disabled())
-		return -ENODEV;
-
-	if (pdev->resource[1].flags != IORESOURCE_IRQ) {
-		pr_debug("resource[1] is not IORESOURCE_IRQ");
-		return -ENOMEM;
-	}
-	hcd = usb_create_hcd(&ehci_au1xxx_hc_driver, &pdev->dev, "Au1xxx");
-	if (!hcd)
-		return -ENOMEM;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hcd->rsrc_start = res->start;
-	hcd->rsrc_len = resource_size(res);
-
-	hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (!hcd->regs) {
-		pr_debug("devm_request_and_ioremap failed");
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	if (alchemy_usb_control(ALCHEMY_USB_EHCI0, 1)) {
-		printk(KERN_INFO "%s: controller init failed!\n", pdev->name);
-		ret = -ENODEV;
-		goto err1;
-	}
-
-	ret = usb_add_hcd(hcd, pdev->resource[1].start,
-			  IRQF_SHARED);
-	if (ret == 0) {
-		platform_set_drvdata(pdev, hcd);
-		return ret;
-	}
-
-	alchemy_usb_control(ALCHEMY_USB_EHCI0, 0);
-err1:
-	usb_put_hcd(hcd);
-	return ret;
-}
-
-static int ehci_hcd_au1xxx_drv_remove(struct platform_device *pdev)
-{
-	struct usb_hcd *hcd = platform_get_drvdata(pdev);
-
-	usb_remove_hcd(hcd);
-	alchemy_usb_control(ALCHEMY_USB_EHCI0, 0);
-	usb_put_hcd(hcd);
-	platform_set_drvdata(pdev, NULL);
-
-	return 0;
-}
-
-#ifdef CONFIG_PM
-static int ehci_hcd_au1xxx_drv_suspend(struct device *dev)
-{
-	struct usb_hcd *hcd = dev_get_drvdata(dev);
-	bool do_wakeup = device_may_wakeup(dev);
-	int rc;
-
-	rc = ehci_suspend(hcd, do_wakeup);
-	alchemy_usb_control(ALCHEMY_USB_EHCI0, 0);
-
-	return rc;
-}
-
-static int ehci_hcd_au1xxx_drv_resume(struct device *dev)
-{
-	struct usb_hcd *hcd = dev_get_drvdata(dev);
-
-	alchemy_usb_control(ALCHEMY_USB_EHCI0, 1);
-	ehci_resume(hcd, false);
-
-	return 0;
-}
-
-static const struct dev_pm_ops au1xxx_ehci_pmops = {
-	.suspend	= ehci_hcd_au1xxx_drv_suspend,
-	.resume		= ehci_hcd_au1xxx_drv_resume,
-};
-
-#define AU1XXX_EHCI_PMOPS &au1xxx_ehci_pmops
-
-#else
-#define AU1XXX_EHCI_PMOPS NULL
-#endif
-
-static struct platform_driver ehci_hcd_au1xxx_driver = {
-	.probe		= ehci_hcd_au1xxx_drv_probe,
-	.remove		= ehci_hcd_au1xxx_drv_remove,
-	.shutdown	= usb_hcd_platform_shutdown,
-	.driver = {
-		.name	= "au1xxx-ehci",
-		.owner	= THIS_MODULE,
-		.pm	= AU1XXX_EHCI_PMOPS,
-	}
-};
-
-MODULE_ALIAS("platform:au1xxx-ehci");
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index f2a9982..a954a95 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1219,11 +1219,6 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER		ehci_hcd_sh_driver
 #endif
 
-#ifdef CONFIG_MIPS_ALCHEMY
-#include "ehci-au1xxx.c"
-#define	PLATFORM_DRIVER		ehci_hcd_au1xxx_driver
-#endif
-
 #ifdef CONFIG_USB_EHCI_HCD_OMAP
 #include "ehci-omap.c"
 #define        PLATFORM_DRIVER         ehci_hcd_omap_driver
-- 
1.7.9.5

[PATCH 09/24 v2] ARM: cns3xxx: use ehci platform driver

[Florian Fainelli]

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
No change since v1

 arch/arm/mach-cns3xxx/cns3420vb.c |   44 ++++++++++++++++++++++++++++++++++++-
 1 file changed, 43 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-cns3xxx/cns3420vb.c b/arch/arm/mach-cns3xxx/cns3420vb.c
index 2c5fb4c..906094c 100644
--- a/arch/arm/mach-cns3xxx/cns3420vb.c
+++ b/arch/arm/mach-cns3xxx/cns3420vb.c
@@ -24,6 +24,7 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/physmap.h>
 #include <linux/mtd/partitions.h>
+#include <linux/usb/ehci_pdriver.h>
 #include <asm/setup.h>
 #include <asm/mach-types.h>
 #include <asm/hardware/gic.h>
@@ -32,6 +33,7 @@
 #include <asm/mach/time.h>
 #include <mach/cns3xxx.h>
 #include <mach/irqs.h>
+#include <mach/pm.h>
 #include "core.h"
 #include "devices.h"
 
@@ -125,13 +127,53 @@ static struct resource cns3xxx_usb_ehci_resources[] = {
 
 static u64 cns3xxx_usb_ehci_dma_mask = DMA_BIT_MASK(32);
 
+static int csn3xxx_usb_ehci_power_on(struct platform_device *pdev)
+{
+	/*
+	 * EHCI and OHCI share the same clock and power,
+	 * resetting twice would cause the 1st controller been reset.
+	 * Therefore only do power up  at the first up device, and
+	 * power down at the last down device.
+	 *
+	 * Set USB AHB INCR length to 16
+	 */
+	if (atomic_inc_return(&usb_pwr_ref) == 1) {
+		cns3xxx_pwr_power_up(1 << PM_PLL_HM_PD_CTRL_REG_OFFSET_PLL_USB);
+		cns3xxx_pwr_clk_en(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST);
+		cns3xxx_pwr_soft_rst(1 << PM_SOFT_RST_REG_OFFST_USB_HOST);
+		__raw_writel((__raw_readl(MISC_CHIP_CONFIG_REG) | (0X2 << 24)),
+			MISC_CHIP_CONFIG_REG);
+	}
+
+	return 0;
+}
+
+static void csn3xxx_usb_ehci_power_off(struct platform_device *pdev)
+{
+	/*
+	 * EHCI and OHCI share the same clock and power,
+	 * resetting twice would cause the 1st controller been reset.
+	 * Therefore only do power up  at the first up device, and
+	 * power down at the last down device.
+	 */
+	if (atomic_dec_return(&usb_pwr_ref) == 0)
+		cns3xxx_pwr_clk_dis(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST);
+}
+
+static struct usb_ehci_pdata cns3xxx_usb_ehci_pdata = {
+	.port_power_off	= 1,
+	.power_on	= csn3xxx_usb_ehci_power_on,
+	.power_off	= csn3xxx_usb_ehci_power_off,
+};
+
 static struct platform_device cns3xxx_usb_ehci_device = {
-	.name          = "cns3xxx-ehci",
+	.name          = "ehci-platform",
 	.num_resources = ARRAY_SIZE(cns3xxx_usb_ehci_resources),
 	.resource      = cns3xxx_usb_ehci_resources,
 	.dev           = {
 		.dma_mask          = &cns3xxx_usb_ehci_dma_mask,
 		.coherent_dma_mask = DMA_BIT_MASK(32),
+		.platform_data     = &cns3xxx_usb_ehci_pdata,
 	},
 };
 
-- 
1.7.9.5

[PATCH 10/24 v2] USB: EHCI: remove CNS3xxx EHCI platform driver

[Florian Fainelli]

The users have been converted to use the ehci platform driver instead, thus
making the ehci-cns3xxx driver obsolete, so remove it.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
Changes since v1:
- only remove the corresponding chunk from ehci-hcd

 drivers/usb/host/Kconfig        |    6 +-
 drivers/usb/host/ehci-cns3xxx.c |  155 ---------------------------------------
 drivers/usb/host/ehci-hcd.c     |    5 --
 3 files changed, 5 insertions(+), 161 deletions(-)
 delete mode 100644 drivers/usb/host/ehci-cns3xxx.c

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index b1deb0f..15304e7 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -215,9 +215,13 @@ config USB_W90X900_EHCI
 		Enables support for the W90X900 USB controller
 
 config USB_CNS3XXX_EHCI
-	bool "Cavium CNS3XXX EHCI Module"
+	bool "Cavium CNS3XXX EHCI Module (DEPRECATED)"
 	depends on USB_EHCI_HCD && ARCH_CNS3XXX
+	select USB_EHCI_HCD_PLATFORM
 	---help---
+	  This option is deprecated now and the driver was removed, use
+	  USB_EHCI_HCD_PLATFORM instead.
+
 	  Enable support for the CNS3XXX SOC's on-chip EHCI controller.
 	  It is needed for high-speed (480Mbit/sec) USB 2.0 device
 	  support.
diff --git a/drivers/usb/host/ehci-cns3xxx.c b/drivers/usb/host/ehci-cns3xxx.c
deleted file mode 100644
index d91708d..0000000
--- a/drivers/usb/host/ehci-cns3xxx.c
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
- * Copyright 2008 Cavium Networks
- *
- * This file is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, Version 2, as
- * published by the Free Software Foundation.
- */
-
-#include <linux/platform_device.h>
-#include <linux/atomic.h>
-#include <mach/cns3xxx.h>
-#include <mach/pm.h>
-
-static int cns3xxx_ehci_init(struct usb_hcd *hcd)
-{
-	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
-	int retval;
-
-	/*
-	 * EHCI and OHCI share the same clock and power,
-	 * resetting twice would cause the 1st controller been reset.
-	 * Therefore only do power up  at the first up device, and
-	 * power down at the last down device.
-	 *
-	 * Set USB AHB INCR length to 16
-	 */
-	if (atomic_inc_return(&usb_pwr_ref) == 1) {
-		cns3xxx_pwr_power_up(1 << PM_PLL_HM_PD_CTRL_REG_OFFSET_PLL_USB);
-		cns3xxx_pwr_clk_en(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST);
-		cns3xxx_pwr_soft_rst(1 << PM_SOFT_RST_REG_OFFST_USB_HOST);
-		__raw_writel((__raw_readl(MISC_CHIP_CONFIG_REG) | (0X2 << 24)),
-			MISC_CHIP_CONFIG_REG);
-	}
-
-	ehci->caps = hcd->regs;
-
-	hcd->has_tt = 0;
-
-	retval = ehci_setup(hcd);
-	if (retval)
-		return retval;
-
-	ehci_port_power(ehci, 0);
-
-	return retval;
-}
-
-static const struct hc_driver cns3xxx_ehci_hc_driver = {
-	.description		= hcd_name,
-	.product_desc		= "CNS3XXX EHCI Host Controller",
-	.hcd_priv_size		= sizeof(struct ehci_hcd),
-	.irq			= ehci_irq,
-	.flags			= HCD_MEMORY | HCD_USB2,
-	.reset			= cns3xxx_ehci_init,
-	.start			= ehci_run,
-	.stop			= ehci_stop,
-	.shutdown		= ehci_shutdown,
-	.urb_enqueue		= ehci_urb_enqueue,
-	.urb_dequeue		= ehci_urb_dequeue,
-	.endpoint_disable	= ehci_endpoint_disable,
-	.endpoint_reset		= ehci_endpoint_reset,
-	.get_frame_number	= ehci_get_frame,
-	.hub_status_data	= ehci_hub_status_data,
-	.hub_control		= ehci_hub_control,
-#ifdef CONFIG_PM
-	.bus_suspend		= ehci_bus_suspend,
-	.bus_resume		= ehci_bus_resume,
-#endif
-	.relinquish_port	= ehci_relinquish_port,
-	.port_handed_over	= ehci_port_handed_over,
-
-	.clear_tt_buffer_complete	= ehci_clear_tt_buffer_complete,
-};
-
-static int cns3xxx_ehci_probe(struct platform_device *pdev)
-{
-	struct device *dev = &pdev->dev;
-	struct usb_hcd *hcd;
-	const struct hc_driver *driver = &cns3xxx_ehci_hc_driver;
-	struct resource *res;
-	int irq;
-	int retval;
-
-	if (usb_disabled())
-		return -ENODEV;
-
-	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (!res) {
-		dev_err(dev, "Found HC with no IRQ.\n");
-		return -ENODEV;
-	}
-	irq = res->start;
-
-	hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
-	if (!hcd)
-		return -ENOMEM;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(dev, "Found HC with no register addr.\n");
-		retval = -ENODEV;
-		goto err1;
-	}
-
-	hcd->rsrc_start = res->start;
-	hcd->rsrc_len = resource_size(res);
-
-	hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (hcd->regs == NULL) {
-		dev_dbg(dev, "error mapping memory\n");
-		retval = -EFAULT;
-		goto err1;
-	}
-
-	retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
-	if (retval == 0)
-		return retval;
-
-err1:
-	usb_put_hcd(hcd);
-
-	return retval;
-}
-
-static int cns3xxx_ehci_remove(struct platform_device *pdev)
-{
-	struct usb_hcd *hcd = platform_get_drvdata(pdev);
-
-	usb_remove_hcd(hcd);
-
-	/*
-	 * EHCI and OHCI share the same clock and power,
-	 * resetting twice would cause the 1st controller been reset.
-	 * Therefore only do power up  at the first up device, and
-	 * power down at the last down device.
-	 */
-	if (atomic_dec_return(&usb_pwr_ref) == 0)
-		cns3xxx_pwr_clk_dis(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST);
-
-	usb_put_hcd(hcd);
-
-	platform_set_drvdata(pdev, NULL);
-
-	return 0;
-}
-
-MODULE_ALIAS("platform:cns3xxx-ehci");
-
-static struct platform_driver cns3xxx_ehci_driver = {
-	.probe = cns3xxx_ehci_probe,
-	.remove = cns3xxx_ehci_remove,
-	.driver = {
-		.name = "cns3xxx-ehci",
-	},
-};
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index a954a95..830fdf3 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1259,11 +1259,6 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER		ehci_octeon_driver
 #endif
 
-#ifdef CONFIG_USB_CNS3XXX_EHCI
-#include "ehci-cns3xxx.c"
-#define PLATFORM_DRIVER		cns3xxx_ehci_driver
-#endif
-
 #ifdef CONFIG_ARCH_VT8500
 #include "ehci-vt8500.c"
 #define	PLATFORM_DRIVER		vt8500_ehci_driver
-- 
1.7.9.5

[PATCH 11/24 v2] USB: ohci: allow platform driver to specify the number of ports

[Florian Fainelli]

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
No changes since v1

 drivers/usb/host/ohci-platform.c |    4 ++++
 include/linux/usb/ohci_pdriver.h |    2 ++
 2 files changed, 6 insertions(+)

diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
index e24ec9f..1caaf65 100644
--- a/drivers/usb/host/ohci-platform.c
+++ b/drivers/usb/host/ohci-platform.c
@@ -31,6 +31,10 @@ static int ohci_platform_reset(struct usb_hcd *hcd)
 		ohci->flags |= OHCI_QUIRK_FRAME_NO;
 
 	ohci_hcd_init(ohci);
+
+	if (pdata->num_ports)
+		ohci->num_ports = pdata->num_ports;
+
 	err = ohci_init(ohci);
 
 	return err;
diff --git a/include/linux/usb/ohci_pdriver.h b/include/linux/usb/ohci_pdriver.h
index 74e7755..012f2b7 100644
--- a/include/linux/usb/ohci_pdriver.h
+++ b/include/linux/usb/ohci_pdriver.h
@@ -25,6 +25,7 @@
  * @big_endian_desc:	BE descriptors
  * @big_endian_mmio:	BE registers
  * @no_big_frame_no:	no big endian frame_no shift
+ * @num_ports:		number of ports
  *
  * These are general configuration options for the OHCI controller. All of
  * these options are activating more or less workarounds for some hardware.
@@ -33,6 +34,7 @@ struct usb_ohci_pdata {
 	unsigned	big_endian_desc:1;
 	unsigned	big_endian_mmio:1;
 	unsigned	no_big_frame_no:1;
+	unsigned int	num_ports;
 
 	/* Turn on all power and clocks */
 	int (*power_on)(struct platform_device *pdev);
-- 
1.7.9.5

[PATCH 12/24] USB: ohci: move ohci_pci_{suspend,resume} to ohci-hcd.c

[Florian Fainelli]

As suggested by Alan Stern, move the ohci-pci.c ohci_pci_{suspend,resume}
routines to ohci-hcd.c. Due to their move, also rename them to
ohci_{suspend,resume} to make it clear they operate on ohci_hcd. Since they
are not necessarily called, annotate them with __maybe_unused.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
 drivers/usb/host/ohci-hcd.c |   39 +++++++++++++++++++++++++++++++++++++++
 drivers/usb/host/ohci-pci.c |   43 ++-----------------------------------------
 2 files changed, 41 insertions(+), 41 deletions(-)

diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 2b1e8d8..0cba8d6 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -981,6 +981,45 @@ static int ohci_restart (struct ohci_hcd *ohci)
 	return 0;
 }
 
+static int __maybe_unused ohci_suspend(struct usb_hcd *hcd, bool do_wakeup)
+{
+	struct ohci_hcd	*ohci = hcd_to_ohci (hcd);
+	unsigned long	flags;
+	int		rc = 0;
+
+	/* Root hub was already suspended. Disable irq emission and
+	 * mark HW unaccessible, bail out if RH has been resumed. Use
+	 * the spinlock to properly synchronize with possible pending
+	 * RH suspend or resume activity.
+	 */
+	spin_lock_irqsave (&ohci->lock, flags);
+	if (ohci->rh_state != OHCI_RH_SUSPENDED) {
+		rc = -EINVAL;
+		goto bail;
+	}
+	ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);
+	(void)ohci_readl(ohci, &ohci->regs->intrdisable);
+
+	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+ bail:
+	spin_unlock_irqrestore (&ohci->lock, flags);
+
+	return rc;
+}
+
+
+static int __maybe_unused ohci_resume(struct usb_hcd *hcd, bool hibernated)
+{
+	set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+
+	/* Make sure resume from hibernation re-enumerates everything */
+	if (hibernated)
+		ohci_usb_reset(hcd_to_ohci(hcd));
+
+	ohci_finish_controller_resume(hcd);
+	return 0;
+}
+
 #endif
 
 /*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c
index 1843bb6..926f08b 100644
--- a/drivers/usb/host/ohci-pci.c
+++ b/drivers/usb/host/ohci-pci.c
@@ -298,45 +298,6 @@ static int __devinit ohci_pci_start (struct usb_hcd *hcd)
 
 #ifdef	CONFIG_PM
 
-static int ohci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
-{
-	struct ohci_hcd	*ohci = hcd_to_ohci (hcd);
-	unsigned long	flags;
-	int		rc = 0;
-
-	/* Root hub was already suspended. Disable irq emission and
-	 * mark HW unaccessible, bail out if RH has been resumed. Use
-	 * the spinlock to properly synchronize with possible pending
-	 * RH suspend or resume activity.
-	 */
-	spin_lock_irqsave (&ohci->lock, flags);
-	if (ohci->rh_state != OHCI_RH_SUSPENDED) {
-		rc = -EINVAL;
-		goto bail;
-	}
-	ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);
-	(void)ohci_readl(ohci, &ohci->regs->intrdisable);
-
-	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
- bail:
-	spin_unlock_irqrestore (&ohci->lock, flags);
-
-	return rc;
-}
-
-
-static int ohci_pci_resume(struct usb_hcd *hcd, bool hibernated)
-{
-	set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
-
-	/* Make sure resume from hibernation re-enumerates everything */
-	if (hibernated)
-		ohci_usb_reset(hcd_to_ohci(hcd));
-
-	ohci_finish_controller_resume(hcd);
-	return 0;
-}
-
 #endif	/* CONFIG_PM */
 
 
@@ -362,8 +323,8 @@ static const struct hc_driver ohci_pci_hc_driver = {
 	.shutdown =		ohci_shutdown,
 
 #ifdef	CONFIG_PM
-	.pci_suspend =		ohci_pci_suspend,
-	.pci_resume =		ohci_pci_resume,
+	.pci_suspend =		ohci_suspend,
+	.pci_resume =		ohci_resume,
 #endif
 
 	/*
-- 
1.7.9.5

Re: [PATCH 12/24] USB: ohci: move ohci_pci_{suspend,resume} to ohci-hcd.c

[Alan Stern]

On Thu, 4 Oct 2012, Florian Fainelli wrote:

> As suggested by Alan Stern, move the ohci-pci.c ohci_pci_{suspend,resume}
> routines to ohci-hcd.c. Due to their move, also rename them to
> ohci_{suspend,resume} to make it clear they operate on ohci_hcd. Since they
> are not necessarily called, annotate them with __maybe_unused.
> 
> Signed-off-by: Florian Fainelli <florian@openwrt.org>
> ---
>  drivers/usb/host/ohci-hcd.c |   39 +++++++++++++++++++++++++++++++++++++++
>  drivers/usb/host/ohci-pci.c |   43 ++-----------------------------------------
>  2 files changed, 41 insertions(+), 41 deletions(-)
> 
> diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
> index 2b1e8d8..0cba8d6 100644
> --- a/drivers/usb/host/ohci-hcd.c
> +++ b/drivers/usb/host/ohci-hcd.c
> @@ -981,6 +981,45 @@ static int ohci_restart (struct ohci_hcd *ohci)
>  	return 0;
>  }
>  
> +static int __maybe_unused ohci_suspend(struct usb_hcd *hcd, bool do_wakeup)
> +{

...

> +	struct ohci_hcd	*ohci = hcd_to_ohci (hcd);
> +}
> +
>  #endif

How about putting these new routines _after_ this #endif?

> --- a/drivers/usb/host/ohci-pci.c
> +++ b/drivers/usb/host/ohci-pci.c
> @@ -298,45 +298,6 @@ static int __devinit ohci_pci_start (struct usb_hcd *hcd)
>  
>  #ifdef	CONFIG_PM
>  
> -static int ohci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
> -{

...

> -}
> -
>  #endif	/* CONFIG_PM */

And then moving these #ifdef and #endif lines along with them?

The point is that one condition is

	#if defined(CONFIG_PM) || defined(CONFIG_PCI)

whereas the other is just

	#ifdef CONFIG_PM

so they aren't really the same.

Alan Stern

[PATCH 13/24] USB: ohci: remove check for RH already suspended in ohci_suspend

[Florian Fainelli]

As suggested by Alan Stern, the code checking for the OHCI Root Hub already
suspended is no longer required since the bug it fixes has not been seen in
ages, remove that check making ohci_suspend much simpler.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
 drivers/usb/host/ohci-hcd.c |   11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 0cba8d6..5d30992 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -985,26 +985,19 @@ static int __maybe_unused ohci_suspend(struct usb_hcd *hcd, bool do_wakeup)
 {
 	struct ohci_hcd	*ohci = hcd_to_ohci (hcd);
 	unsigned long	flags;
-	int		rc = 0;
 
-	/* Root hub was already suspended. Disable irq emission and
-	 * mark HW unaccessible, bail out if RH has been resumed. Use
+	/* Disable irq emission and mark HW unaccessible. Use
 	 * the spinlock to properly synchronize with possible pending
 	 * RH suspend or resume activity.
 	 */
 	spin_lock_irqsave (&ohci->lock, flags);
-	if (ohci->rh_state != OHCI_RH_SUSPENDED) {
-		rc = -EINVAL;
-		goto bail;
-	}
 	ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);
 	(void)ohci_readl(ohci, &ohci->regs->intrdisable);
 
 	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
- bail:
 	spin_unlock_irqrestore (&ohci->lock, flags);
 
-	return rc;
+	return 0;
 }
 
 
-- 
1.7.9.5

[PATCH 14/24] USB: ohci: merge ohci_finish_controller_resume with ohci_resume

[Florian Fainelli]

Merge ohci_finish_controller_resume with ohci_resume as suggested by Alan
Stern. Since ohci_finish_controller_resume no longer exists, update the
various OHCI drivers to call ohci_resume() instead. Some drivers used to set
themselves the bit HCD_FLAG_HW_ACCESSIBLE, which is now handled by
ohci_resume().

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
 drivers/usb/host/ohci-at91.c     |    2 +-
 drivers/usb/host/ohci-ep93xx.c   |    2 +-
 drivers/usb/host/ohci-exynos.c   |    5 +----
 drivers/usb/host/ohci-hcd.c      |   41 +++++++++++++++++++++++++++++++++++--
 drivers/usb/host/ohci-hub.c      |   42 --------------------------------------
 drivers/usb/host/ohci-omap.c     |    2 +-
 drivers/usb/host/ohci-platform.c |    2 +-
 drivers/usb/host/ohci-pxa27x.c   |    2 +-
 drivers/usb/host/ohci-s3c2410.c  |    3 +--
 drivers/usb/host/ohci-spear.c    |    2 +-
 drivers/usb/host/ohci-tmio.c     |    2 +-
 11 files changed, 48 insertions(+), 57 deletions(-)

diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 0bf72f9..908d84a 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -705,7 +705,7 @@ static int ohci_hcd_at91_drv_resume(struct platform_device *pdev)
 	if (!clocked)
 		at91_start_clock();
 
-	ohci_finish_controller_resume(hcd);
+	ohci_resume(hcd, false);
 	return 0;
 }
 #else
diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c
index dbfbd1d..a982f04 100644
--- a/drivers/usb/host/ohci-ep93xx.c
+++ b/drivers/usb/host/ohci-ep93xx.c
@@ -194,7 +194,7 @@ static int ohci_hcd_ep93xx_drv_resume(struct platform_device *pdev)
 
 	ep93xx_start_hc(&pdev->dev);
 
-	ohci_finish_controller_resume(hcd);
+	ohci_resume(hcd, false);
 	return 0;
 }
 #endif
diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c
index fc3091b..53c5a989 100644
--- a/drivers/usb/host/ohci-exynos.c
+++ b/drivers/usb/host/ohci-exynos.c
@@ -252,10 +252,7 @@ static int exynos_ohci_resume(struct device *dev)
 	if (pdata && pdata->phy_init)
 		pdata->phy_init(pdev, S5P_USB_PHY_HOST);
 
-	/* Mark hardware accessible again as we are out of D3 state by now */
-	set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
-
-	ohci_finish_controller_resume(hcd);
+	ohci_resume(hcd, false);
 
 	return 0;
 }
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 5d30992..568bdb3 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1003,13 +1003,50 @@ static int __maybe_unused ohci_suspend(struct usb_hcd *hcd, bool do_wakeup)
 
 static int __maybe_unused ohci_resume(struct usb_hcd *hcd, bool hibernated)
 {
+	struct ohci_hcd		*ohci = hcd_to_ohci(hcd);
+	int			port;
+	bool			need_reinit = false;
+
 	set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
 
 	/* Make sure resume from hibernation re-enumerates everything */
 	if (hibernated)
-		ohci_usb_reset(hcd_to_ohci(hcd));
+		ohci_usb_reset(ohci);
+
+	/* See if the controller is already running or has been reset */
+	ohci->hc_control = ohci_readl(ohci, &ohci->regs->control);
+	if (ohci->hc_control & (OHCI_CTRL_IR | OHCI_SCHED_ENABLES)) {
+		need_reinit = true;
+	} else {
+		switch (ohci->hc_control & OHCI_CTRL_HCFS) {
+		case OHCI_USB_OPER:
+		case OHCI_USB_RESET:
+			need_reinit = true;
+		}
+	}
+
+	/* If needed, reinitialize and suspend the root hub */
+	if (need_reinit) {
+		spin_lock_irq(&ohci->lock);
+		ohci_rh_resume(ohci);
+		ohci_rh_suspend(ohci, 0);
+		spin_unlock_irq(&ohci->lock);
+	}
+
+	/* Normally just turn on port power and enable interrupts */
+	else {
+		ohci_dbg(ohci, "powerup ports\n");
+		for (port = 0; port < ohci->num_ports; port++)
+			ohci_writel(ohci, RH_PS_PPS,
+					&ohci->regs->roothub.portstatus[port]);
+
+		ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrenable);
+		ohci_readl(ohci, &ohci->regs->intrenable);
+		msleep(20);
+	}
+
+	usb_hcd_resume_root_hub(hcd);
 
-	ohci_finish_controller_resume(hcd);
 	return 0;
 }
 
diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c
index 2f3619e..db09dae 100644
--- a/drivers/usb/host/ohci-hub.c
+++ b/drivers/usb/host/ohci-hub.c
@@ -316,48 +316,6 @@ static int ohci_bus_resume (struct usb_hcd *hcd)
 	return rc;
 }
 
-/* Carry out the final steps of resuming the controller device */
-static void __maybe_unused ohci_finish_controller_resume(struct usb_hcd *hcd)
-{
-	struct ohci_hcd		*ohci = hcd_to_ohci(hcd);
-	int			port;
-	bool			need_reinit = false;
-
-	/* See if the controller is already running or has been reset */
-	ohci->hc_control = ohci_readl(ohci, &ohci->regs->control);
-	if (ohci->hc_control & (OHCI_CTRL_IR | OHCI_SCHED_ENABLES)) {
-		need_reinit = true;
-	} else {
-		switch (ohci->hc_control & OHCI_CTRL_HCFS) {
-		case OHCI_USB_OPER:
-		case OHCI_USB_RESET:
-			need_reinit = true;
-		}
-	}
-
-	/* If needed, reinitialize and suspend the root hub */
-	if (need_reinit) {
-		spin_lock_irq(&ohci->lock);
-		ohci_rh_resume(ohci);
-		ohci_rh_suspend(ohci, 0);
-		spin_unlock_irq(&ohci->lock);
-	}
-
-	/* Normally just turn on port power and enable interrupts */
-	else {
-		ohci_dbg(ohci, "powerup ports\n");
-		for (port = 0; port < ohci->num_ports; port++)
-			ohci_writel(ohci, RH_PS_PPS,
-					&ohci->regs->roothub.portstatus[port]);
-
-		ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrenable);
-		ohci_readl(ohci, &ohci->regs->intrenable);
-		msleep(20);
-	}
-
-	usb_hcd_resume_root_hub(hcd);
-}
-
 /* Carry out polling-, autostop-, and autoresume-related state changes */
 static int ohci_root_hub_state_changes(struct ohci_hcd *ohci, int changed,
 		int any_connected, int rhsc_status)
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index f8b2d91..9fab4d8 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -530,7 +530,7 @@ static int ohci_omap_resume(struct platform_device *dev)
 	ohci->next_statechange = jiffies;
 
 	omap_ohci_clock_power(1);
-	ohci_finish_controller_resume(hcd);
+	ohci_resume(hcd, false);
 	return 0;
 }
 
diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
index 1caaf65..99d1755 100644
--- a/drivers/usb/host/ohci-platform.c
+++ b/drivers/usb/host/ohci-platform.c
@@ -203,7 +203,7 @@ static int ohci_platform_resume(struct device *dev)
 			return err;
 	}
 
-	ohci_finish_controller_resume(hcd);
+	ohci_resume(hcd, false);
 	return 0;
 }
 
diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index 77f4402..8bffde3 100644
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -591,7 +591,7 @@ static int ohci_hcd_pxa27x_drv_resume(struct device *dev)
 	/* Select Power Management Mode */
 	pxa27x_ohci_select_pmm(ohci, inf->port_mode);
 
-	ohci_finish_controller_resume(hcd);
+	ohci_resume(hcd, false);
 	return 0;
 }
 
diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c
index 664c869..8af53c6 100644
--- a/drivers/usb/host/ohci-s3c2410.c
+++ b/drivers/usb/host/ohci-s3c2410.c
@@ -524,8 +524,7 @@ static int ohci_hcd_s3c2410_drv_resume(struct device *dev)
 
 	s3c2410_start_hc(pdev, hcd);
 
-	set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
-	ohci_finish_controller_resume(hcd);
+	ohci_resume(hcd, false);
 
 	return 0;
 }
diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c
index fc7305e..d607be3 100644
--- a/drivers/usb/host/ohci-spear.c
+++ b/drivers/usb/host/ohci-spear.c
@@ -231,7 +231,7 @@ static int spear_ohci_hcd_drv_resume(struct platform_device *dev)
 	ohci->next_statechange = jiffies;
 
 	spear_start_ohci(ohci_p);
-	ohci_finish_controller_resume(hcd);
+	ohci_resume(hcd, false);
 	return 0;
 }
 #endif
diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c
index 60c2b07..2c9ab8f 100644
--- a/drivers/usb/host/ohci-tmio.c
+++ b/drivers/usb/host/ohci-tmio.c
@@ -352,7 +352,7 @@ static int ohci_hcd_tmio_drv_resume(struct platform_device *dev)
 
 	spin_unlock_irqrestore(&tmio->lock, flags);
 
-	ohci_finish_controller_resume(hcd);
+	ohci_resume(hcd, false);
 
 	return 0;
 }
-- 
1.7.9.5

Re: [PATCH 14/24] USB: ohci: merge ohci_finish_controller_resume with ohci_resume

[Jingoo Han]

On Friday, October 05, 2012 12:18 AM Florian Fainelli wrote
> 
> Merge ohci_finish_controller_resume with ohci_resume as suggested by Alan
> Stern. Since ohci_finish_controller_resume no longer exists, update the
> various OHCI drivers to call ohci_resume() instead. Some drivers used to set
> themselves the bit HCD_FLAG_HW_ACCESSIBLE, which is now handled by
> ohci_resume().
> 
> Signed-off-by: Florian Fainelli <florian@openwrt.org>

For drivers/usb/host/ohci-exynos.c, it looks good.

Acked-by: Jingoo Han <jg1.han@samsung.com>


Best regards,
Jingoo Han


> ---
>  drivers/usb/host/ohci-at91.c     |    2 +-
>  drivers/usb/host/ohci-ep93xx.c   |    2 +-
>  drivers/usb/host/ohci-exynos.c   |    5 +----
>  drivers/usb/host/ohci-hcd.c      |   41 +++++++++++++++++++++++++++++++++++--
>  drivers/usb/host/ohci-hub.c      |   42 --------------------------------------
>  drivers/usb/host/ohci-omap.c     |    2 +-
>  drivers/usb/host/ohci-platform.c |    2 +-
>  drivers/usb/host/ohci-pxa27x.c   |    2 +-
>  drivers/usb/host/ohci-s3c2410.c  |    3 +--
>  drivers/usb/host/ohci-spear.c    |    2 +-
>  drivers/usb/host/ohci-tmio.c     |    2 +-
>  11 files changed, 48 insertions(+), 57 deletions(-)
> 
> diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
> index 0bf72f9..908d84a 100644
> --- a/drivers/usb/host/ohci-at91.c
> +++ b/drivers/usb/host/ohci-at91.c
> @@ -705,7 +705,7 @@ static int ohci_hcd_at91_drv_resume(struct platform_device *pdev)
>  	if (!clocked)
>  		at91_start_clock();
> 
> -	ohci_finish_controller_resume(hcd);
> +	ohci_resume(hcd, false);
>  	return 0;
>  }
>  #else
> diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c
> index dbfbd1d..a982f04 100644
> --- a/drivers/usb/host/ohci-ep93xx.c
> +++ b/drivers/usb/host/ohci-ep93xx.c
> @@ -194,7 +194,7 @@ static int ohci_hcd_ep93xx_drv_resume(struct platform_device *pdev)
> 
>  	ep93xx_start_hc(&pdev->dev);
> 
> -	ohci_finish_controller_resume(hcd);
> +	ohci_resume(hcd, false);
>  	return 0;
>  }
>  #endif
> diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c
> index fc3091b..53c5a989 100644
> --- a/drivers/usb/host/ohci-exynos.c
> +++ b/drivers/usb/host/ohci-exynos.c
> @@ -252,10 +252,7 @@ static int exynos_ohci_resume(struct device *dev)
>  	if (pdata && pdata->phy_init)
>  		pdata->phy_init(pdev, S5P_USB_PHY_HOST);
> 
> -	/* Mark hardware accessible again as we are out of D3 state by now */
> -	set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
> -
> -	ohci_finish_controller_resume(hcd);
> +	ohci_resume(hcd, false);
> 
>  	return 0;
>  }
> diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
> index 5d30992..568bdb3 100644
> --- a/drivers/usb/host/ohci-hcd.c
> +++ b/drivers/usb/host/ohci-hcd.c
> @@ -1003,13 +1003,50 @@ static int __maybe_unused ohci_suspend(struct usb_hcd *hcd, bool do_wakeup)
> 
>  static int __maybe_unused ohci_resume(struct usb_hcd *hcd, bool hibernated)
>  {
> +	struct ohci_hcd		*ohci = hcd_to_ohci(hcd);
> +	int			port;
> +	bool			need_reinit = false;
> +
>  	set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
> 
>  	/* Make sure resume from hibernation re-enumerates everything */
>  	if (hibernated)
> -		ohci_usb_reset(hcd_to_ohci(hcd));
> +		ohci_usb_reset(ohci);
> +
> +	/* See if the controller is already running or has been reset */
> +	ohci->hc_control = ohci_readl(ohci, &ohci->regs->control);
> +	if (ohci->hc_control & (OHCI_CTRL_IR | OHCI_SCHED_ENABLES)) {
> +		need_reinit = true;
> +	} else {
> +		switch (ohci->hc_control & OHCI_CTRL_HCFS) {
> +		case OHCI_USB_OPER:
> +		case OHCI_USB_RESET:
> +			need_reinit = true;
> +		}
> +	}
> +
> +	/* If needed, reinitialize and suspend the root hub */
> +	if (need_reinit) {
> +		spin_lock_irq(&ohci->lock);
> +		ohci_rh_resume(ohci);
> +		ohci_rh_suspend(ohci, 0);
> +		spin_unlock_irq(&ohci->lock);
> +	}
> +
> +	/* Normally just turn on port power and enable interrupts */
> +	else {
> +		ohci_dbg(ohci, "powerup ports\n");
> +		for (port = 0; port < ohci->num_ports; port++)
> +			ohci_writel(ohci, RH_PS_PPS,
> +					&ohci->regs->roothub.portstatus[port]);
> +
> +		ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrenable);
> +		ohci_readl(ohci, &ohci->regs->intrenable);
> +		msleep(20);
> +	}
> +
> +	usb_hcd_resume_root_hub(hcd);
> 
> -	ohci_finish_controller_resume(hcd);
>  	return 0;
>  }
> 
> diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c
> index 2f3619e..db09dae 100644
> --- a/drivers/usb/host/ohci-hub.c
> +++ b/drivers/usb/host/ohci-hub.c
> @@ -316,48 +316,6 @@ static int ohci_bus_resume (struct usb_hcd *hcd)
>  	return rc;
>  }
> 
> -/* Carry out the final steps of resuming the controller device */
> -static void __maybe_unused ohci_finish_controller_resume(struct usb_hcd *hcd)
> -{
> -	struct ohci_hcd		*ohci = hcd_to_ohci(hcd);
> -	int			port;
> -	bool			need_reinit = false;
> -
> -	/* See if the controller is already running or has been reset */
> -	ohci->hc_control = ohci_readl(ohci, &ohci->regs->control);
> -	if (ohci->hc_control & (OHCI_CTRL_IR | OHCI_SCHED_ENABLES)) {
> -		need_reinit = true;
> -	} else {
> -		switch (ohci->hc_control & OHCI_CTRL_HCFS) {
> -		case OHCI_USB_OPER:
> -		case OHCI_USB_RESET:
> -			need_reinit = true;
> -		}
> -	}
> -
> -	/* If needed, reinitialize and suspend the root hub */
> -	if (need_reinit) {
> -		spin_lock_irq(&ohci->lock);
> -		ohci_rh_resume(ohci);
> -		ohci_rh_suspend(ohci, 0);
> -		spin_unlock_irq(&ohci->lock);
> -	}
> -
> -	/* Normally just turn on port power and enable interrupts */
> -	else {
> -		ohci_dbg(ohci, "powerup ports\n");
> -		for (port = 0; port < ohci->num_ports; port++)
> -			ohci_writel(ohci, RH_PS_PPS,
> -					&ohci->regs->roothub.portstatus[port]);
> -
> -		ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrenable);
> -		ohci_readl(ohci, &ohci->regs->intrenable);
> -		msleep(20);
> -	}
> -
> -	usb_hcd_resume_root_hub(hcd);
> -}
> -
>  /* Carry out polling-, autostop-, and autoresume-related state changes */
>  static int ohci_root_hub_state_changes(struct ohci_hcd *ohci, int changed,
>  		int any_connected, int rhsc_status)
> diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
> index f8b2d91..9fab4d8 100644
> --- a/drivers/usb/host/ohci-omap.c
> +++ b/drivers/usb/host/ohci-omap.c
> @@ -530,7 +530,7 @@ static int ohci_omap_resume(struct platform_device *dev)
>  	ohci->next_statechange = jiffies;
> 
>  	omap_ohci_clock_power(1);
> -	ohci_finish_controller_resume(hcd);
> +	ohci_resume(hcd, false);
>  	return 0;
>  }
> 
> diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
> index 1caaf65..99d1755 100644
> --- a/drivers/usb/host/ohci-platform.c
> +++ b/drivers/usb/host/ohci-platform.c
> @@ -203,7 +203,7 @@ static int ohci_platform_resume(struct device *dev)
>  			return err;
>  	}
> 
> -	ohci_finish_controller_resume(hcd);
> +	ohci_resume(hcd, false);
>  	return 0;
>  }
> 
> diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
> index 77f4402..8bffde3 100644
> --- a/drivers/usb/host/ohci-pxa27x.c
> +++ b/drivers/usb/host/ohci-pxa27x.c
> @@ -591,7 +591,7 @@ static int ohci_hcd_pxa27x_drv_resume(struct device *dev)
>  	/* Select Power Management Mode */
>  	pxa27x_ohci_select_pmm(ohci, inf->port_mode);
> 
> -	ohci_finish_controller_resume(hcd);
> +	ohci_resume(hcd, false);
>  	return 0;
>  }
> 
> diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c
> index 664c869..8af53c6 100644
> --- a/drivers/usb/host/ohci-s3c2410.c
> +++ b/drivers/usb/host/ohci-s3c2410.c
> @@ -524,8 +524,7 @@ static int ohci_hcd_s3c2410_drv_resume(struct device *dev)
> 
>  	s3c2410_start_hc(pdev, hcd);
> 
> -	set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
> -	ohci_finish_controller_resume(hcd);
> +	ohci_resume(hcd, false);
> 
>  	return 0;
>  }
> diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c
> index fc7305e..d607be3 100644
> --- a/drivers/usb/host/ohci-spear.c
> +++ b/drivers/usb/host/ohci-spear.c
> @@ -231,7 +231,7 @@ static int spear_ohci_hcd_drv_resume(struct platform_device *dev)
>  	ohci->next_statechange = jiffies;
> 
>  	spear_start_ohci(ohci_p);
> -	ohci_finish_controller_resume(hcd);
> +	ohci_resume(hcd, false);
>  	return 0;
>  }
>  #endif
> diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c
> index 60c2b07..2c9ab8f 100644
> --- a/drivers/usb/host/ohci-tmio.c
> +++ b/drivers/usb/host/ohci-tmio.c
> @@ -352,7 +352,7 @@ static int ohci_hcd_tmio_drv_resume(struct platform_device *dev)
> 
>  	spin_unlock_irqrestore(&tmio->lock, flags);
> 
> -	ohci_finish_controller_resume(hcd);
> +	ohci_resume(hcd, false);
> 
>  	return 0;
>  }
> --
> 1.7.9.5
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: [PATCH 14/24] USB: ohci: merge ohci_finish_controller_resume with ohci_resume

[Nicolas Ferre]

On 10/04/2012 05:17 PM, Florian Fainelli :
> Merge ohci_finish_controller_resume with ohci_resume as suggested by Alan
> Stern. Since ohci_finish_controller_resume no longer exists, update the
> various OHCI drivers to call ohci_resume() instead. Some drivers used to set
> themselves the bit HCD_FLAG_HW_ACCESSIBLE, which is now handled by
> ohci_resume().
> 
> Signed-off-by: Florian Fainelli <florian@openwrt.org>
> ---
>  drivers/usb/host/ohci-at91.c     |    2 +-

Seems ok for AT91, so

Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>

Thanks Florian, bye,

>  drivers/usb/host/ohci-ep93xx.c   |    2 +-
>  drivers/usb/host/ohci-exynos.c   |    5 +----
>  drivers/usb/host/ohci-hcd.c      |   41 +++++++++++++++++++++++++++++++++++--
>  drivers/usb/host/ohci-hub.c      |   42 --------------------------------------
>  drivers/usb/host/ohci-omap.c     |    2 +-
>  drivers/usb/host/ohci-platform.c |    2 +-
>  drivers/usb/host/ohci-pxa27x.c   |    2 +-
>  drivers/usb/host/ohci-s3c2410.c  |    3 +--
>  drivers/usb/host/ohci-spear.c    |    2 +-
>  drivers/usb/host/ohci-tmio.c     |    2 +-
>  11 files changed, 48 insertions(+), 57 deletions(-)
> 
> diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
> index 0bf72f9..908d84a 100644
> --- a/drivers/usb/host/ohci-at91.c
> +++ b/drivers/usb/host/ohci-at91.c
> @@ -705,7 +705,7 @@ static int ohci_hcd_at91_drv_resume(struct platform_device *pdev)
>  	if (!clocked)
>  		at91_start_clock();
>  
> -	ohci_finish_controller_resume(hcd);
> +	ohci_resume(hcd, false);
>  	return 0;
>  }
>  #else
> diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c
> index dbfbd1d..a982f04 100644
> --- a/drivers/usb/host/ohci-ep93xx.c
> +++ b/drivers/usb/host/ohci-ep93xx.c
> @@ -194,7 +194,7 @@ static int ohci_hcd_ep93xx_drv_resume(struct platform_device *pdev)
>  
>  	ep93xx_start_hc(&pdev->dev);
>  
> -	ohci_finish_controller_resume(hcd);
> +	ohci_resume(hcd, false);
>  	return 0;
>  }
>  #endif
> diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c
> index fc3091b..53c5a989 100644
> --- a/drivers/usb/host/ohci-exynos.c
> +++ b/drivers/usb/host/ohci-exynos.c
> @@ -252,10 +252,7 @@ static int exynos_ohci_resume(struct device *dev)
>  	if (pdata && pdata->phy_init)
>  		pdata->phy_init(pdev, S5P_USB_PHY_HOST);
>  
> -	/* Mark hardware accessible again as we are out of D3 state by now */
> -	set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
> -
> -	ohci_finish_controller_resume(hcd);
> +	ohci_resume(hcd, false);
>  
>  	return 0;
>  }
> diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
> index 5d30992..568bdb3 100644
> --- a/drivers/usb/host/ohci-hcd.c
> +++ b/drivers/usb/host/ohci-hcd.c
> @@ -1003,13 +1003,50 @@ static int __maybe_unused ohci_suspend(struct usb_hcd *hcd, bool do_wakeup)
>  
>  static int __maybe_unused ohci_resume(struct usb_hcd *hcd, bool hibernated)
>  {
> +	struct ohci_hcd		*ohci = hcd_to_ohci(hcd);
> +	int			port;
> +	bool			need_reinit = false;
> +
>  	set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
>  
>  	/* Make sure resume from hibernation re-enumerates everything */
>  	if (hibernated)
> -		ohci_usb_reset(hcd_to_ohci(hcd));
> +		ohci_usb_reset(ohci);
> +
> +	/* See if the controller is already running or has been reset */
> +	ohci->hc_control = ohci_readl(ohci, &ohci->regs->control);
> +	if (ohci->hc_control & (OHCI_CTRL_IR | OHCI_SCHED_ENABLES)) {
> +		need_reinit = true;
> +	} else {
> +		switch (ohci->hc_control & OHCI_CTRL_HCFS) {
> +		case OHCI_USB_OPER:
> +		case OHCI_USB_RESET:
> +			need_reinit = true;
> +		}
> +	}
> +
> +	/* If needed, reinitialize and suspend the root hub */
> +	if (need_reinit) {
> +		spin_lock_irq(&ohci->lock);
> +		ohci_rh_resume(ohci);
> +		ohci_rh_suspend(ohci, 0);
> +		spin_unlock_irq(&ohci->lock);
> +	}
> +
> +	/* Normally just turn on port power and enable interrupts */
> +	else {
> +		ohci_dbg(ohci, "powerup ports\n");
> +		for (port = 0; port < ohci->num_ports; port++)
> +			ohci_writel(ohci, RH_PS_PPS,
> +					&ohci->regs->roothub.portstatus[port]);
> +
> +		ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrenable);
> +		ohci_readl(ohci, &ohci->regs->intrenable);
> +		msleep(20);
> +	}
> +
> +	usb_hcd_resume_root_hub(hcd);
>  
> -	ohci_finish_controller_resume(hcd);
>  	return 0;
>  }
>  
> diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c
> index 2f3619e..db09dae 100644
> --- a/drivers/usb/host/ohci-hub.c
> +++ b/drivers/usb/host/ohci-hub.c
> @@ -316,48 +316,6 @@ static int ohci_bus_resume (struct usb_hcd *hcd)
>  	return rc;
>  }
>  
> -/* Carry out the final steps of resuming the controller device */
> -static void __maybe_unused ohci_finish_controller_resume(struct usb_hcd *hcd)
> -{
> -	struct ohci_hcd		*ohci = hcd_to_ohci(hcd);
> -	int			port;
> -	bool			need_reinit = false;
> -
> -	/* See if the controller is already running or has been reset */
> -	ohci->hc_control = ohci_readl(ohci, &ohci->regs->control);
> -	if (ohci->hc_control & (OHCI_CTRL_IR | OHCI_SCHED_ENABLES)) {
> -		need_reinit = true;
> -	} else {
> -		switch (ohci->hc_control & OHCI_CTRL_HCFS) {
> -		case OHCI_USB_OPER:
> -		case OHCI_USB_RESET:
> -			need_reinit = true;
> -		}
> -	}
> -
> -	/* If needed, reinitialize and suspend the root hub */
> -	if (need_reinit) {
> -		spin_lock_irq(&ohci->lock);
> -		ohci_rh_resume(ohci);
> -		ohci_rh_suspend(ohci, 0);
> -		spin_unlock_irq(&ohci->lock);
> -	}
> -
> -	/* Normally just turn on port power and enable interrupts */
> -	else {
> -		ohci_dbg(ohci, "powerup ports\n");
> -		for (port = 0; port < ohci->num_ports; port++)
> -			ohci_writel(ohci, RH_PS_PPS,
> -					&ohci->regs->roothub.portstatus[port]);
> -
> -		ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrenable);
> -		ohci_readl(ohci, &ohci->regs->intrenable);
> -		msleep(20);
> -	}
> -
> -	usb_hcd_resume_root_hub(hcd);
> -}
> -
>  /* Carry out polling-, autostop-, and autoresume-related state changes */
>  static int ohci_root_hub_state_changes(struct ohci_hcd *ohci, int changed,
>  		int any_connected, int rhsc_status)
> diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
> index f8b2d91..9fab4d8 100644
> --- a/drivers/usb/host/ohci-omap.c
> +++ b/drivers/usb/host/ohci-omap.c
> @@ -530,7 +530,7 @@ static int ohci_omap_resume(struct platform_device *dev)
>  	ohci->next_statechange = jiffies;
>  
>  	omap_ohci_clock_power(1);
> -	ohci_finish_controller_resume(hcd);
> +	ohci_resume(hcd, false);
>  	return 0;
>  }
>  
> diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
> index 1caaf65..99d1755 100644
> --- a/drivers/usb/host/ohci-platform.c
> +++ b/drivers/usb/host/ohci-platform.c
> @@ -203,7 +203,7 @@ static int ohci_platform_resume(struct device *dev)
>  			return err;
>  	}
>  
> -	ohci_finish_controller_resume(hcd);
> +	ohci_resume(hcd, false);
>  	return 0;
>  }
>  
> diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
> index 77f4402..8bffde3 100644
> --- a/drivers/usb/host/ohci-pxa27x.c
> +++ b/drivers/usb/host/ohci-pxa27x.c
> @@ -591,7 +591,7 @@ static int ohci_hcd_pxa27x_drv_resume(struct device *dev)
>  	/* Select Power Management Mode */
>  	pxa27x_ohci_select_pmm(ohci, inf->port_mode);
>  
> -	ohci_finish_controller_resume(hcd);
> +	ohci_resume(hcd, false);
>  	return 0;
>  }
>  
> diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c
> index 664c869..8af53c6 100644
> --- a/drivers/usb/host/ohci-s3c2410.c
> +++ b/drivers/usb/host/ohci-s3c2410.c
> @@ -524,8 +524,7 @@ static int ohci_hcd_s3c2410_drv_resume(struct device *dev)
>  
>  	s3c2410_start_hc(pdev, hcd);
>  
> -	set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
> -	ohci_finish_controller_resume(hcd);
> +	ohci_resume(hcd, false);
>  
>  	return 0;
>  }
> diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c
> index fc7305e..d607be3 100644
> --- a/drivers/usb/host/ohci-spear.c
> +++ b/drivers/usb/host/ohci-spear.c
> @@ -231,7 +231,7 @@ static int spear_ohci_hcd_drv_resume(struct platform_device *dev)
>  	ohci->next_statechange = jiffies;
>  
>  	spear_start_ohci(ohci_p);
> -	ohci_finish_controller_resume(hcd);
> +	ohci_resume(hcd, false);
>  	return 0;
>  }
>  #endif
> diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c
> index 60c2b07..2c9ab8f 100644
> --- a/drivers/usb/host/ohci-tmio.c
> +++ b/drivers/usb/host/ohci-tmio.c
> @@ -352,7 +352,7 @@ static int ohci_hcd_tmio_drv_resume(struct platform_device *dev)
>  
>  	spin_unlock_irqrestore(&tmio->lock, flags);
>  
> -	ohci_finish_controller_resume(hcd);
> +	ohci_resume(hcd, false);
>  
>  	return 0;
>  }
> 


-- 
Nicolas Ferre

[PATCH 15/24 v2] MIPS: PNX8550: use OHCI platform driver

[Florian Fainelli]

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
No changes since v1

 arch/mips/pnx8550/common/platform.c |   31 ++++++++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/arch/mips/pnx8550/common/platform.c b/arch/mips/pnx8550/common/platform.c
index 5264cc0..0a8faea 100644
--- a/arch/mips/pnx8550/common/platform.c
+++ b/arch/mips/pnx8550/common/platform.c
@@ -20,6 +20,7 @@
 #include <linux/serial.h>
 #include <linux/serial_pnx8xxx.h>
 #include <linux/platform_device.h>
+#include <linux/usb/ohci_pdriver.h>
 
 #include <int.h>
 #include <usb.h>
@@ -96,12 +97,40 @@ static u64 ohci_dmamask = DMA_BIT_MASK(32);
 
 static u64 uart_dmamask = DMA_BIT_MASK(32);
 
+static int pnx8550_usb_ohci_power_on(struct platform_device *pdev)
+{
+	/*
+	 * Set register CLK48CTL to enable and 48MHz
+	 */
+	outl(0x00000003, PCI_BASE | 0x0004770c);
+
+	/*
+	 * Set register CLK12CTL to enable and 48MHz
+	 */
+	outl(0x00000003, PCI_BASE | 0x00047710);
+
+	udelay(100);
+
+	return 0;
+}
+
+static void pnx8550_usb_ohci_power_off(struct platform_device *pdev)
+{
+	udelay(10);
+}
+
+static struct usb_ohci_pdata pnx8550_usb_ohci_pdata = {
+	.power_on	= pnx8550_usb_ohci_power_on,
+	.power_off	= pnx8550_usb_ohci_power_off,
+};
+
 static struct platform_device pnx8550_usb_ohci_device = {
-	.name		= "pnx8550-ohci",
+	.name		= "ohci-platform",
 	.id		= -1,
 	.dev = {
 		.dma_mask		= &ohci_dmamask,
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
+		.platform_data		= &pnx8550_usb_ohci_pdata,
 	},
 	.num_resources	= ARRAY_SIZE(pnx8550_usb_ohci_resources),
 	.resource	= pnx8550_usb_ohci_resources,
-- 
1.7.9.5

[PATCH 16/24 v2] USB: OHCI: remove PNX8550 OHCI driver

[Florian Fainelli]

The users have been converted to use the platform OHCI driver instead, thus
making the ohci-pnx8550 driver obsolete, so remove it.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
No changes since v1

 drivers/usb/host/ohci-hcd.c     |    5 -
 drivers/usb/host/ohci-pnx8550.c |  243 ---------------------------------------
 2 files changed, 248 deletions(-)
 delete mode 100644 drivers/usb/host/ohci-pnx8550.c

diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 568bdb3..9453eea 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1103,11 +1103,6 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER		ohci_hcd_au1xxx_driver
 #endif
 
-#ifdef CONFIG_PNX8550
-#include "ohci-pnx8550.c"
-#define PLATFORM_DRIVER		ohci_hcd_pnx8550_driver
-#endif
-
 #ifdef CONFIG_USB_OHCI_HCD_PPC_SOC
 #include "ohci-ppc-soc.c"
 #define PLATFORM_DRIVER		ohci_hcd_ppc_soc_driver
diff --git a/drivers/usb/host/ohci-pnx8550.c b/drivers/usb/host/ohci-pnx8550.c
deleted file mode 100644
index 148d27d..0000000
--- a/drivers/usb/host/ohci-pnx8550.c
+++ /dev/null
@@ -1,243 +0,0 @@
-/*
- * OHCI HCD (Host Controller Driver) for USB.
- *
- * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
- * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
- * (C) Copyright 2002 Hewlett-Packard Company
- * (C) Copyright 2005 Embedded Alley Solutions, Inc.
- *
- * Bus Glue for PNX8550
- *
- * Written by Christopher Hoover <ch@hpl.hp.com>
- * Based on fragments of previous driver by Russell King et al.
- *
- * Modified for LH7A404 from ohci-sa1111.c
- *  by Durgesh Pattamatta <pattamattad@sharpsec.com>
- *
- * Modified for PNX8550 from ohci-sa1111.c and sa-omap.c
- *  by Vitaly Wool <vitalywool@gmail.com>
- *
- * This file is licenced under the GPL.
- */
-
-#include <linux/device.h>
-#include <linux/platform_device.h>
-#include <asm/mach-pnx8550/usb.h>
-#include <asm/mach-pnx8550/int.h>
-#include <asm/mach-pnx8550/pci.h>
-
-#ifndef CONFIG_PNX8550
-#error "This file is PNX8550 bus glue.  CONFIG_PNX8550 must be defined."
-#endif
-
-extern int usb_disabled(void);
-
-/*-------------------------------------------------------------------------*/
-
-static void pnx8550_start_hc(struct platform_device *dev)
-{
-	/*
-	 * Set register CLK48CTL to enable and 48MHz
-	 */
-	outl(0x00000003, PCI_BASE | 0x0004770c);
-
-	/*
-	 * Set register CLK12CTL to enable and 48MHz
-	 */
-	outl(0x00000003, PCI_BASE | 0x00047710);
-
-	udelay(100);
-}
-
-static void pnx8550_stop_hc(struct platform_device *dev)
-{
-	udelay(10);
-}
-
-
-/*-------------------------------------------------------------------------*/
-
-/* configure so an HC device and id are always provided */
-/* always called with process context; sleeping is OK */
-
-
-/**
- * usb_hcd_pnx8550_probe - initialize pnx8550-based HCDs
- * Context: !in_interrupt()
- *
- * Allocates basic resources for this USB host controller, and
- * then invokes the start() method for the HCD associated with it
- * through the hotplug entry's driver_data.
- *
- */
-int usb_hcd_pnx8550_probe (const struct hc_driver *driver,
-			  struct platform_device *dev)
-{
-	int retval;
-	struct usb_hcd *hcd;
-
-	if (dev->resource[0].flags != IORESOURCE_MEM ||
-			dev->resource[1].flags != IORESOURCE_IRQ) {
-		dev_err (&dev->dev,"invalid resource type\n");
-		return -ENOMEM;
-	}
-
-	hcd = usb_create_hcd (driver, &dev->dev, "pnx8550");
-	if (!hcd)
-		return -ENOMEM;
-	hcd->rsrc_start = dev->resource[0].start;
-	hcd->rsrc_len = dev->resource[0].end - dev->resource[0].start + 1;
-
-	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
-		dev_err(&dev->dev, "request_mem_region [0x%08llx, 0x%08llx] "
-				"failed\n", hcd->rsrc_start, hcd->rsrc_len);
-		retval = -EBUSY;
-		goto err1;
-	}
-
-	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
-	if (!hcd->regs) {
-		dev_err(&dev->dev, "ioremap [[0x%08llx, 0x%08llx] failed\n",
-				hcd->rsrc_start, hcd->rsrc_len);
-		retval = -ENOMEM;
-		goto err2;
-	}
-
-	pnx8550_start_hc(dev);
-
-	ohci_hcd_init(hcd_to_ohci(hcd));
-
-	retval = usb_add_hcd(hcd, dev->resource[1].start, 0);
-	if (retval == 0)
-		return retval;
-
-	pnx8550_stop_hc(dev);
-	iounmap(hcd->regs);
- err2:
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
- err1:
-	usb_put_hcd(hcd);
-	return retval;
-}
-
-
-/* may be called without controller electrically present */
-/* may be called with controller, bus, and devices active */
-
-/**
- * usb_hcd_pnx8550_remove - shutdown processing for pnx8550-based HCDs
- * @dev: USB Host Controller being removed
- * Context: !in_interrupt()
- *
- * Reverses the effect of usb_hcd_pnx8550_probe(), first invoking
- * the HCD's stop() method.  It is always called from a thread
- * context, normally "rmmod", "apmd", or something similar.
- *
- */
-void usb_hcd_pnx8550_remove (struct usb_hcd *hcd, struct platform_device *dev)
-{
-	usb_remove_hcd(hcd);
-	pnx8550_stop_hc(dev);
-	iounmap(hcd->regs);
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-	usb_put_hcd(hcd);
-}
-
-/*-------------------------------------------------------------------------*/
-
-static int __devinit
-ohci_pnx8550_start (struct usb_hcd *hcd)
-{
-	struct ohci_hcd	*ohci = hcd_to_ohci (hcd);
-	int		ret;
-
-	ohci_dbg (ohci, "ohci_pnx8550_start, ohci:%p", ohci);
-
-	if ((ret = ohci_init(ohci)) < 0)
-		return ret;
-
-	if ((ret = ohci_run (ohci)) < 0) {
-		dev_err(hcd->self.controller, "can't start %s",
-			hcd->self.bus_name);
-		ohci_stop (hcd);
-		return ret;
-	}
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static const struct hc_driver ohci_pnx8550_hc_driver = {
-	.description =		hcd_name,
-	.product_desc =		"PNX8550 OHCI",
-	.hcd_priv_size =	sizeof(struct ohci_hcd),
-
-	/*
-	 * generic hardware linkage
-	 */
-	.irq =			ohci_irq,
-	.flags =		HCD_USB11 | HCD_MEMORY,
-
-	/*
-	 * basic lifecycle operations
-	 */
-	.start =		ohci_pnx8550_start,
-	.stop =			ohci_stop,
-
-	/*
-	 * managing i/o requests and associated device resources
-	 */
-	.urb_enqueue =		ohci_urb_enqueue,
-	.urb_dequeue =		ohci_urb_dequeue,
-	.endpoint_disable =	ohci_endpoint_disable,
-
-	/*
-	 * scheduling support
-	 */
-	.get_frame_number =	ohci_get_frame,
-
-	/*
-	 * root hub support
-	 */
-	.hub_status_data =	ohci_hub_status_data,
-	.hub_control =		ohci_hub_control,
-#ifdef	CONFIG_PM
-	.bus_suspend =		ohci_bus_suspend,
-	.bus_resume =		ohci_bus_resume,
-#endif
-	.start_port_reset =	ohci_start_port_reset,
-};
-
-/*-------------------------------------------------------------------------*/
-
-static int ohci_hcd_pnx8550_drv_probe(struct platform_device *pdev)
-{
-	int ret;
-
-	if (usb_disabled())
-		return -ENODEV;
-
-	ret = usb_hcd_pnx8550_probe(&ohci_pnx8550_hc_driver, pdev);
-	return ret;
-}
-
-static int ohci_hcd_pnx8550_drv_remove(struct platform_device *pdev)
-{
-	struct usb_hcd *hcd = platform_get_drvdata(pdev);
-
-	usb_hcd_pnx8550_remove(hcd, pdev);
-	return 0;
-}
-
-MODULE_ALIAS("platform:pnx8550-ohci");
-
-static struct platform_driver ohci_hcd_pnx8550_driver = {
-	.driver = {
-		.name	= "pnx8550-ohci",
-		.owner	= THIS_MODULE,
-	},
-	.probe		= ohci_hcd_pnx8550_drv_probe,
-	.remove		= ohci_hcd_pnx8550_drv_remove,
-};
-
-- 
1.7.9.5

[PATCH 17/24 v2] ARM: cns3xxx: use OHCI platform driver

[Florian Fainelli]

Since both the EHCI and OHCI platform drivers use the same power_{on,off}
callbacks, rename them to cns3xx_usb_power_{on,off} to show that they are
shared.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
No changes since v1

 arch/arm/mach-cns3xxx/cns3420vb.c |   18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-cns3xxx/cns3420vb.c b/arch/arm/mach-cns3xxx/cns3420vb.c
index 906094c..8a00cee8 100644
--- a/arch/arm/mach-cns3xxx/cns3420vb.c
+++ b/arch/arm/mach-cns3xxx/cns3420vb.c
@@ -25,6 +25,7 @@
 #include <linux/mtd/physmap.h>
 #include <linux/mtd/partitions.h>
 #include <linux/usb/ehci_pdriver.h>
+#include <linux/usb/ohci_pdriver.h>
 #include <asm/setup.h>
 #include <asm/mach-types.h>
 #include <asm/hardware/gic.h>
@@ -127,7 +128,7 @@ static struct resource cns3xxx_usb_ehci_resources[] = {
 
 static u64 cns3xxx_usb_ehci_dma_mask = DMA_BIT_MASK(32);
 
-static int csn3xxx_usb_ehci_power_on(struct platform_device *pdev)
+static int csn3xxx_usb_power_on(struct platform_device *pdev)
 {
 	/*
 	 * EHCI and OHCI share the same clock and power,
@@ -148,7 +149,7 @@ static int csn3xxx_usb_ehci_power_on(struct platform_device *pdev)
 	return 0;
 }
 
-static void csn3xxx_usb_ehci_power_off(struct platform_device *pdev)
+static void csn3xxx_usb_power_off(struct platform_device *pdev)
 {
 	/*
 	 * EHCI and OHCI share the same clock and power,
@@ -162,8 +163,8 @@ static void csn3xxx_usb_ehci_power_off(struct platform_device *pdev)
 
 static struct usb_ehci_pdata cns3xxx_usb_ehci_pdata = {
 	.port_power_off	= 1,
-	.power_on	= csn3xxx_usb_ehci_power_on,
-	.power_off	= csn3xxx_usb_ehci_power_off,
+	.power_on	= csn3xxx_usb_power_on,
+	.power_off	= csn3xxx_usb_power_off,
 };
 
 static struct platform_device cns3xxx_usb_ehci_device = {
@@ -191,13 +192,20 @@ static struct resource cns3xxx_usb_ohci_resources[] = {
 
 static u64 cns3xxx_usb_ohci_dma_mask = DMA_BIT_MASK(32);
 
+static struct usb_ohci_pdata cns3xxx_usb_ohci_pdata = {
+	.num_ports	= 1,
+	.power_on	= csn3xxx_usb_power_on,
+	.power_off	= csn3xxx_usb_power_off,
+};
+
 static struct platform_device cns3xxx_usb_ohci_device = {
-	.name          = "cns3xxx-ohci",
+	.name          = "ohci-platform",
 	.num_resources = ARRAY_SIZE(cns3xxx_usb_ohci_resources),
 	.resource      = cns3xxx_usb_ohci_resources,
 	.dev           = {
 		.dma_mask          = &cns3xxx_usb_ohci_dma_mask,
 		.coherent_dma_mask = DMA_BIT_MASK(32),
+		.platform_data	   = &cns3xxx_usb_ohci_pdata,
 	},
 };
 
-- 
1.7.9.5

Re: [PATCH 17/24 v2] ARM: cns3xxx: use OHCI platform driver

[Alan Stern]

On Thu, 4 Oct 2012, Florian Fainelli wrote:

> Since both the EHCI and OHCI platform drivers use the same power_{on,off}
> callbacks, rename them to cns3xx_usb_power_{on,off} to show that they are
> shared.

This is an example of the sort of thing I complained about before.  
People who read only the patch description and not the title will
wonder why this patch adds cns3xxx_usb_ohci_pdata and
cns3xxx_usb_ohci_device.

And people who read both will wonder why they talk about different 
things.

Alan Stern

[PATCH 18/24 v2] USB: OHCI: remove CNS3xxx OHCI platform driver

[Florian Fainelli]

All users have been converted to use the OHCI platform driver instead, thus
making ohci-cns3xxx, so remove it.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
Changes since v1:
- reworded commit message

 drivers/usb/host/Kconfig        |    6 +-
 drivers/usb/host/ohci-cns3xxx.c |  166 ---------------------------------------
 drivers/usb/host/ohci-hcd.c     |    5 --
 3 files changed, 5 insertions(+), 172 deletions(-)
 delete mode 100644 drivers/usb/host/ohci-cns3xxx.c

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 15304e7..86a7995 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -410,9 +410,13 @@ config USB_OHCI_EXYNOS
 	 Enable support for the Samsung Exynos SOC's on-chip OHCI controller.
 
 config USB_CNS3XXX_OHCI
-	bool "Cavium CNS3XXX OHCI Module"
+	bool "Cavium CNS3XXX OHCI Module (DEPRECATED)"
 	depends on USB_OHCI_HCD && ARCH_CNS3XXX
+	select USB_OHCI_HCD_PLATFORM
 	---help---
+	  This option is deprecated now and the driver was removed, use
+	  USB_OHCI_HCD_PLATFORM instead.
+
 	  Enable support for the CNS3XXX SOC's on-chip OHCI controller.
 	  It is needed for low-speed USB 1.0 device support.
 
diff --git a/drivers/usb/host/ohci-cns3xxx.c b/drivers/usb/host/ohci-cns3xxx.c
deleted file mode 100644
index 2c9f233..0000000
--- a/drivers/usb/host/ohci-cns3xxx.c
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * Copyright 2008 Cavium Networks
- *
- * This file is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, Version 2, as
- * published by the Free Software Foundation.
- */
-
-#include <linux/platform_device.h>
-#include <linux/atomic.h>
-#include <mach/cns3xxx.h>
-#include <mach/pm.h>
-
-static int __devinit
-cns3xxx_ohci_start(struct usb_hcd *hcd)
-{
-	struct ohci_hcd	*ohci = hcd_to_ohci(hcd);
-	int ret;
-
-	/*
-	 * EHCI and OHCI share the same clock and power,
-	 * resetting twice would cause the 1st controller been reset.
-	 * Therefore only do power up  at the first up device, and
-	 * power down at the last down device.
-	 *
-	 * Set USB AHB INCR length to 16
-	 */
-	if (atomic_inc_return(&usb_pwr_ref) == 1) {
-		cns3xxx_pwr_power_up(1 << PM_PLL_HM_PD_CTRL_REG_OFFSET_PLL_USB);
-		cns3xxx_pwr_clk_en(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST);
-		cns3xxx_pwr_soft_rst(1 << PM_SOFT_RST_REG_OFFST_USB_HOST);
-		__raw_writel((__raw_readl(MISC_CHIP_CONFIG_REG) | (0X2 << 24)),
-			MISC_CHIP_CONFIG_REG);
-	}
-
-	ret = ohci_init(ohci);
-	if (ret < 0)
-		return ret;
-
-	ohci->num_ports = 1;
-
-	ret = ohci_run(ohci);
-	if (ret < 0) {
-		dev_err(hcd->self.controller, "can't start %s\n",
-			hcd->self.bus_name);
-		ohci_stop(hcd);
-		return ret;
-	}
-	return 0;
-}
-
-static const struct hc_driver cns3xxx_ohci_hc_driver = {
-	.description		= hcd_name,
-	.product_desc		= "CNS3XXX OHCI Host controller",
-	.hcd_priv_size		= sizeof(struct ohci_hcd),
-	.irq			= ohci_irq,
-	.flags			= HCD_USB11 | HCD_MEMORY,
-	.start			= cns3xxx_ohci_start,
-	.stop			= ohci_stop,
-	.shutdown		= ohci_shutdown,
-	.urb_enqueue		= ohci_urb_enqueue,
-	.urb_dequeue		= ohci_urb_dequeue,
-	.endpoint_disable	= ohci_endpoint_disable,
-	.get_frame_number	= ohci_get_frame,
-	.hub_status_data	= ohci_hub_status_data,
-	.hub_control		= ohci_hub_control,
-#ifdef CONFIG_PM
-	.bus_suspend		= ohci_bus_suspend,
-	.bus_resume		= ohci_bus_resume,
-#endif
-	.start_port_reset	= ohci_start_port_reset,
-};
-
-static int cns3xxx_ohci_probe(struct platform_device *pdev)
-{
-	struct device *dev = &pdev->dev;
-	struct usb_hcd *hcd;
-	const struct hc_driver *driver = &cns3xxx_ohci_hc_driver;
-	struct resource *res;
-	int irq;
-	int retval;
-
-	if (usb_disabled())
-		return -ENODEV;
-
-	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (!res) {
-		dev_err(dev, "Found HC with no IRQ.\n");
-		return -ENODEV;
-	}
-	irq = res->start;
-
-	hcd = usb_create_hcd(driver, dev, dev_name(dev));
-	if (!hcd)
-		return -ENOMEM;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(dev, "Found HC with no register addr.\n");
-		retval = -ENODEV;
-		goto err1;
-	}
-	hcd->rsrc_start = res->start;
-	hcd->rsrc_len = resource_size(res);
-
-	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
-			driver->description)) {
-		dev_dbg(dev, "controller already in use\n");
-		retval = -EBUSY;
-		goto err1;
-	}
-
-	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
-	if (!hcd->regs) {
-		dev_dbg(dev, "error mapping memory\n");
-		retval = -EFAULT;
-		goto err2;
-	}
-
-	ohci_hcd_init(hcd_to_ohci(hcd));
-
-	retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
-	if (retval == 0)
-		return retval;
-
-	iounmap(hcd->regs);
-err2:
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-err1:
-	usb_put_hcd(hcd);
-	return retval;
-}
-
-static int cns3xxx_ohci_remove(struct platform_device *pdev)
-{
-	struct usb_hcd *hcd = platform_get_drvdata(pdev);
-
-	usb_remove_hcd(hcd);
-	iounmap(hcd->regs);
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-
-	/*
-	 * EHCI and OHCI share the same clock and power,
-	 * resetting twice would cause the 1st controller been reset.
-	 * Therefore only do power up  at the first up device, and
-	 * power down at the last down device.
-	 */
-	if (atomic_dec_return(&usb_pwr_ref) == 0)
-		cns3xxx_pwr_clk_dis(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST);
-
-	usb_put_hcd(hcd);
-
-	platform_set_drvdata(pdev, NULL);
-
-	return 0;
-}
-
-MODULE_ALIAS("platform:cns3xxx-ohci");
-
-static struct platform_driver ohci_hcd_cns3xxx_driver = {
-	.probe = cns3xxx_ohci_probe,
-	.remove = cns3xxx_ohci_remove,
-	.driver = {
-		.name = "cns3xxx-ohci",
-	},
-};
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 9453eea..a6ed6c0 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1169,11 +1169,6 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER		ohci_hcd_tilegx_driver
 #endif
 
-#ifdef CONFIG_USB_CNS3XXX_OHCI
-#include "ohci-cns3xxx.c"
-#define PLATFORM_DRIVER		ohci_hcd_cns3xxx_driver
-#endif
-
 #ifdef CONFIG_CPU_XLR
 #include "ohci-xls.c"
 #define PLATFORM_DRIVER		ohci_xls_driver
-- 
1.7.9.5

[PATCH 19/24 v2] MIPS: Netlogic: convert to use OHCI platform driver

[Florian Fainelli]

The OHCI platform driver is suitable for use by the Netlogic XLR platform
so use this driver instead of the OHCI XLS platform driver.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
Changes since v1:
- really make the code register the "ohci-platform" driver instead of "ohci-xls"

 arch/mips/netlogic/xlr/platform.c |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/mips/netlogic/xlr/platform.c b/arch/mips/netlogic/xlr/platform.c
index 144c5c6..507230e 100644
--- a/arch/mips/netlogic/xlr/platform.c
+++ b/arch/mips/netlogic/xlr/platform.c
@@ -16,6 +16,7 @@
 #include <linux/serial_reg.h>
 #include <linux/i2c.h>
 #include <linux/usb/ehci_pdriver.h>
+#include <linux/usb/ohci_pdriver.h>
 
 #include <asm/netlogic/haldefs.h>
 #include <asm/netlogic/xlr/iomap.h>
@@ -128,12 +129,14 @@ static struct usb_ehci_pdata xls_usb_ehci_pdata = {
 	.caps_offset	= 0,
 };
 
+static struct usb_ohci_pdata xls_usb_ohci_pdata;
+
 static struct platform_device xls_usb_ehci_device =
 			 USB_PLATFORM_DEV("ehci-platform", 0, PIC_USB_IRQ);
 static struct platform_device xls_usb_ohci_device_0 =
-			 USB_PLATFORM_DEV("ohci-xls-0", 1, PIC_USB_IRQ);
+			 USB_PLATFORM_DEV("ohci-platform", 1, PIC_USB_IRQ);
 static struct platform_device xls_usb_ohci_device_1 =
-			 USB_PLATFORM_DEV("ohci-xls-1", 2, PIC_USB_IRQ);
+			 USB_PLATFORM_DEV("ohci-platform", 2, PIC_USB_IRQ);
 
 static struct platform_device *xls_platform_devices[] = {
 	&xls_usb_ehci_device,
@@ -182,10 +185,12 @@ int xls_platform_usb_init(void)
 	memres += 0x400;
 	xls_usb_ohci_device_0.resource[0].start = memres;
 	xls_usb_ohci_device_0.resource[0].end = memres + 0x400 - 1;
+	xls_usb_ohci_device_0.dev.platform_data = &xls_usb_ohci_pdata;
 
 	memres += 0x400;
 	xls_usb_ohci_device_1.resource[0].start = memres;
 	xls_usb_ohci_device_1.resource[0].end = memres + 0x400 - 1;
+	xls_usb_ohci_device_1.dev.platform_data = &xls_usb_ohci_pdata;
 
 	return platform_add_devices(xls_platform_devices,
 				ARRAY_SIZE(xls_platform_devices));
-- 
1.7.9.5

[PATCH 20/24 v2] USB: OHCI: remove Netlogic XLS OHCI platform driver

[Florian Fainelli]

All users have been converted to use the OHCI platform driver instead, thus
making ohci-xls obsolete, remove it.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
Changes since v1:
- reworded commit message

 drivers/usb/host/ohci-hcd.c |    5 --
 drivers/usb/host/ohci-xls.c |  152 -------------------------------------------
 2 files changed, 157 deletions(-)
 delete mode 100644 drivers/usb/host/ohci-xls.c

diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index a6ed6c0..b0fc042 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1169,11 +1169,6 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER		ohci_hcd_tilegx_driver
 #endif
 
-#ifdef CONFIG_CPU_XLR
-#include "ohci-xls.c"
-#define PLATFORM_DRIVER		ohci_xls_driver
-#endif
-
 #ifdef CONFIG_USB_OHCI_HCD_PLATFORM
 #include "ohci-platform.c"
 #define PLATFORM_DRIVER		ohci_platform_driver
diff --git a/drivers/usb/host/ohci-xls.c b/drivers/usb/host/ohci-xls.c
deleted file mode 100644
index 84201cd..0000000
--- a/drivers/usb/host/ohci-xls.c
+++ /dev/null
@@ -1,152 +0,0 @@
-/*
- * OHCI HCD for Netlogic XLS processors.
- *
- * (C) Copyright 2011 Netlogic Microsystems Inc.
- *
- *  Based on ohci-au1xxx.c, and other Linux OHCI drivers.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive for
- * more details.
- */
-
-#include <linux/platform_device.h>
-#include <linux/signal.h>
-
-static int ohci_xls_probe_internal(const struct hc_driver *driver,
-			struct platform_device *dev)
-{
-	struct resource *res;
-	struct usb_hcd *hcd;
-	int retval, irq;
-
-	/* Get our IRQ from an earlier registered Platform Resource */
-	irq = platform_get_irq(dev, 0);
-	if (irq < 0) {
-		dev_err(&dev->dev, "Found HC with no IRQ\n");
-		return -ENODEV;
-	}
-
-	/* Get our Memory Handle */
-	res = platform_get_resource(dev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&dev->dev, "MMIO Handle incorrect!\n");
-		return -ENODEV;
-	}
-
-	hcd = usb_create_hcd(driver, &dev->dev, "XLS");
-	if (!hcd) {
-		retval = -ENOMEM;
-		goto err1;
-	}
-	hcd->rsrc_start = res->start;
-	hcd->rsrc_len = resource_size(res);
-
-	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
-			driver->description)) {
-		dev_dbg(&dev->dev, "Controller already in use\n");
-		retval = -EBUSY;
-		goto err2;
-	}
-
-	hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
-	if (hcd->regs == NULL) {
-		dev_dbg(&dev->dev, "error mapping memory\n");
-		retval = -EFAULT;
-		goto err3;
-	}
-
-	retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
-	if (retval != 0)
-		goto err4;
-	return retval;
-
-err4:
-	iounmap(hcd->regs);
-err3:
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-err2:
-	usb_put_hcd(hcd);
-err1:
-	dev_err(&dev->dev, "init fail, %d\n", retval);
-	return retval;
-}
-
-static int ohci_xls_reset(struct usb_hcd *hcd)
-{
-	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
-
-	ohci_hcd_init(ohci);
-	return ohci_init(ohci);
-}
-
-static int __devinit ohci_xls_start(struct usb_hcd *hcd)
-{
-	struct ohci_hcd *ohci;
-	int ret;
-
-	ohci = hcd_to_ohci(hcd);
-	ret = ohci_run(ohci);
-	if (ret < 0) {
-		dev_err(hcd->self.controller, "can't start %s\n",
-			hcd->self.bus_name);
-		ohci_stop(hcd);
-		return ret;
-	}
-	return 0;
-}
-
-static struct hc_driver ohci_xls_hc_driver = {
-	.description	= hcd_name,
-	.product_desc	= "XLS OHCI Host Controller",
-	.hcd_priv_size	= sizeof(struct ohci_hcd),
-	.irq		= ohci_irq,
-	.flags		= HCD_MEMORY | HCD_USB11,
-	.reset		= ohci_xls_reset,
-	.start		= ohci_xls_start,
-	.stop		= ohci_stop,
-	.shutdown	= ohci_shutdown,
-	.urb_enqueue	= ohci_urb_enqueue,
-	.urb_dequeue	= ohci_urb_dequeue,
-	.endpoint_disable = ohci_endpoint_disable,
-	.get_frame_number = ohci_get_frame,
-	.hub_status_data = ohci_hub_status_data,
-	.hub_control	= ohci_hub_control,
-#ifdef CONFIG_PM
-	.bus_suspend	= ohci_bus_suspend,
-	.bus_resume	= ohci_bus_resume,
-#endif
-	.start_port_reset = ohci_start_port_reset,
-};
-
-static int ohci_xls_probe(struct platform_device *dev)
-{
-	int ret;
-
-	pr_debug("In ohci_xls_probe");
-	if (usb_disabled())
-		return -ENODEV;
-	ret = ohci_xls_probe_internal(&ohci_xls_hc_driver, dev);
-	return ret;
-}
-
-static int ohci_xls_remove(struct platform_device *dev)
-{
-	struct usb_hcd *hcd = platform_get_drvdata(dev);
-
-	usb_remove_hcd(hcd);
-	iounmap(hcd->regs);
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-	usb_put_hcd(hcd);
-	return 0;
-}
-
-static struct platform_driver ohci_xls_driver = {
-	.probe		= ohci_xls_probe,
-	.remove		= ohci_xls_remove,
-	.shutdown	= usb_hcd_platform_shutdown,
-	.driver		= {
-		.name	= "ohci-xls-0",
-		.owner	= THIS_MODULE,
-	},
-};
-- 
1.7.9.5

[PATCH 21/24 v2] sh: convert boards to use the OHCI platform driver

[Florian Fainelli]

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
No changes since v1

 arch/sh/kernel/cpu/sh3/setup-sh7720.c  |    6 +++++-
 arch/sh/kernel/cpu/sh4a/setup-sh7757.c |    6 +++++-
 arch/sh/kernel/cpu/sh4a/setup-sh7763.c |    6 +++++-
 arch/sh/kernel/cpu/sh4a/setup-sh7786.c |    6 +++++-
 4 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7720.c b/arch/sh/kernel/cpu/sh3/setup-sh7720.c
index 0c2f1b2..42d991f 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh7720.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7720.c
@@ -20,6 +20,7 @@
 #include <linux/serial_sci.h>
 #include <linux/sh_timer.h>
 #include <linux/sh_intc.h>
+#include <linux/usb/ohci_pdriver.h>
 #include <asm/rtc.h>
 #include <cpu/serial.h>
 
@@ -103,12 +104,15 @@ static struct resource usb_ohci_resources[] = {
 
 static u64 usb_ohci_dma_mask = 0xffffffffUL;
 
+static struct usb_ohci_pdata usb_ohci_pdata;
+
 static struct platform_device usb_ohci_device = {
-	.name		= "sh_ohci",
+	.name		= "ohci-platform",
 	.id		= -1,
 	.dev = {
 		.dma_mask		= &usb_ohci_dma_mask,
 		.coherent_dma_mask	= 0xffffffff,
+		.platform_data		= &usb_ohci_pdata,
 	},
 	.num_resources	= ARRAY_SIZE(usb_ohci_resources),
 	.resource	= usb_ohci_resources,
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7757.c b/arch/sh/kernel/cpu/sh4a/setup-sh7757.c
index 4a2f357..9079a0f 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7757.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7757.c
@@ -19,6 +19,7 @@
 #include <linux/sh_timer.h>
 #include <linux/sh_dma.h>
 #include <linux/sh_intc.h>
+#include <linux/usb/ohci_pdriver.h>
 #include <cpu/dma-register.h>
 #include <cpu/sh7757.h>
 
@@ -750,12 +751,15 @@ static struct resource usb_ohci_resources[] = {
 	},
 };
 
+static struct usb_ohci_pdata usb_ohci_pdata;
+
 static struct platform_device usb_ohci_device = {
-	.name		= "sh_ohci",
+	.name		= "ohci-platform",
 	.id		= -1,
 	.dev = {
 		.dma_mask = &usb_ohci_device.dev.coherent_dma_mask,
 		.coherent_dma_mask = DMA_BIT_MASK(32),
+		.platform_data	= &usb_ohci_pdata,
 	},
 	.num_resources	= ARRAY_SIZE(usb_ohci_resources),
 	.resource	= usb_ohci_resources,
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7763.c b/arch/sh/kernel/cpu/sh4a/setup-sh7763.c
index bd0a8fb..1686aca 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7763.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7763.c
@@ -16,6 +16,7 @@
 #include <linux/sh_intc.h>
 #include <linux/io.h>
 #include <linux/serial_sci.h>
+#include <linux/usb/ohci_pdriver.h>
 
 static struct plat_sci_port scif0_platform_data = {
 	.mapbase	= 0xffe00000,
@@ -106,12 +107,15 @@ static struct resource usb_ohci_resources[] = {
 
 static u64 usb_ohci_dma_mask = 0xffffffffUL;
 
+static struct usb_ohci_pdata usb_ohci_pdata;
+
 static struct platform_device usb_ohci_device = {
-	.name		= "sh_ohci",
+	.name		= "ohci-platform",
 	.id		= -1,
 	.dev = {
 		.dma_mask		= &usb_ohci_dma_mask,
 		.coherent_dma_mask	= 0xffffffff,
+		.platform_data		= &usb_ohci_pdata,
 	},
 	.num_resources	= ARRAY_SIZE(usb_ohci_resources),
 	.resource	= usb_ohci_resources,
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
index 2e6952f..ab52d4d 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
@@ -23,6 +23,7 @@
 #include <linux/sh_timer.h>
 #include <linux/sh_dma.h>
 #include <linux/sh_intc.h>
+#include <linux/usb/ohci_pdriver.h>
 #include <cpu/dma-register.h>
 #include <asm/mmzone.h>
 
@@ -583,12 +584,15 @@ static struct resource usb_ohci_resources[] = {
 	},
 };
 
+static struct usb_ohci_pdata usb_ohci_pdata;
+
 static struct platform_device usb_ohci_device = {
-	.name		= "sh_ohci",
+	.name		= "ohci-platform",
 	.id		= -1,
 	.dev = {
 		.dma_mask		= &usb_ohci_device.dev.coherent_dma_mask,
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
+		.platform_data		= &usb_ohci_pdata,
 	},
 	.num_resources	= ARRAY_SIZE(usb_ohci_resources),
 	.resource	= usb_ohci_resources,
-- 
1.7.9.5

[PATCH 22/24 v2] USB: OHCI: remove OHCI SH platform driver

[Florian Fainelli]

All users have been converted to use the OHCI platform driver instead, thus
making ohci-sh obsolete, so remove it.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
No changes since v1

 drivers/usb/host/Kconfig    |    6 +-
 drivers/usb/host/ohci-hcd.c |    5 --
 drivers/usb/host/ohci-sh.c  |  141 -------------------------------------------
 3 files changed, 5 insertions(+), 147 deletions(-)
 delete mode 100644 drivers/usb/host/ohci-sh.c

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 86a7995..b05b6aa 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -397,9 +397,13 @@ config USB_OHCI_HCD_SSB
 	  If unsure, say N.
 
 config USB_OHCI_SH
-	bool "OHCI support for SuperH USB controller"
+	bool "OHCI support for SuperH USB controller (DEPRECATED)"
 	depends on USB_OHCI_HCD && SUPERH
+	select USB_OHCI_HCD_PLATFORM
 	---help---
+	  This option is deprecated now and the driver was removed, use
+	  USB_OHCI_HCD_PLATFORM instead.
+
 	  Enables support for the on-chip OHCI controller on the SuperH.
 	  If you use the PCI OHCI controller, this option is not necessary.
 
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index b0fc042..2204759 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1123,11 +1123,6 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER		ohci_hcd_da8xx_driver
 #endif
 
-#ifdef CONFIG_USB_OHCI_SH
-#include "ohci-sh.c"
-#define PLATFORM_DRIVER		ohci_hcd_sh_driver
-#endif
-
 
 #ifdef CONFIG_USB_OHCI_HCD_PPC_OF
 #include "ohci-ppc-of.c"
diff --git a/drivers/usb/host/ohci-sh.c b/drivers/usb/host/ohci-sh.c
deleted file mode 100644
index 76a20c2..0000000
--- a/drivers/usb/host/ohci-sh.c
+++ /dev/null
@@ -1,141 +0,0 @@
-/*
- * OHCI HCD (Host Controller Driver) for USB.
- *
- * Copyright (C) 2008 Renesas Solutions Corp.
- *
- * Author : Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
-
-#include <linux/platform_device.h>
-
-static int ohci_sh_start(struct usb_hcd *hcd)
-{
-	struct ohci_hcd	*ohci = hcd_to_ohci(hcd);
-
-	ohci_hcd_init(ohci);
-	ohci_init(ohci);
-	ohci_run(ohci);
-	return 0;
-}
-
-static const struct hc_driver ohci_sh_hc_driver = {
-	.description =		hcd_name,
-	.product_desc =		"SuperH OHCI",
-	.hcd_priv_size =	sizeof(struct ohci_hcd),
-
-	/*
-	 * generic hardware linkage
-	 */
-	.irq =			ohci_irq,
-	.flags =		HCD_USB11 | HCD_MEMORY,
-
-	/*
-	 * basic lifecycle operations
-	 */
-	.start =		ohci_sh_start,
-	.stop =			ohci_stop,
-	.shutdown =		ohci_shutdown,
-
-	/*
-	 * managing i/o requests and associated device resources
-	 */
-	.urb_enqueue =		ohci_urb_enqueue,
-	.urb_dequeue =		ohci_urb_dequeue,
-	.endpoint_disable =	ohci_endpoint_disable,
-
-	/*
-	 * scheduling support
-	 */
-	.get_frame_number =	ohci_get_frame,
-
-	/*
-	 * root hub support
-	 */
-	.hub_status_data =	ohci_hub_status_data,
-	.hub_control =		ohci_hub_control,
-#ifdef	CONFIG_PM
-	.bus_suspend =		ohci_bus_suspend,
-	.bus_resume =		ohci_bus_resume,
-#endif
-	.start_port_reset =	ohci_start_port_reset,
-};
-
-/*-------------------------------------------------------------------------*/
-
-static int ohci_hcd_sh_probe(struct platform_device *pdev)
-{
-	struct resource *res = NULL;
-	struct usb_hcd *hcd = NULL;
-	int irq = -1;
-	int ret;
-
-	if (usb_disabled())
-		return -ENODEV;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "platform_get_resource error.\n");
-		return -ENODEV;
-	}
-
-	irq = platform_get_irq(pdev, 0);
-	if (irq < 0) {
-		dev_err(&pdev->dev, "platform_get_irq error.\n");
-		return -ENODEV;
-	}
-
-	/* initialize hcd */
-	hcd = usb_create_hcd(&ohci_sh_hc_driver, &pdev->dev, (char *)hcd_name);
-	if (!hcd) {
-		dev_err(&pdev->dev, "Failed to create hcd\n");
-		return -ENOMEM;
-	}
-
-	hcd->regs = (void __iomem *)res->start;
-	hcd->rsrc_start = res->start;
-	hcd->rsrc_len = resource_size(res);
-	ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
-	if (ret != 0) {
-		dev_err(&pdev->dev, "Failed to add hcd\n");
-		usb_put_hcd(hcd);
-		return ret;
-	}
-
-	return ret;
-}
-
-static int ohci_hcd_sh_remove(struct platform_device *pdev)
-{
-	struct usb_hcd *hcd = platform_get_drvdata(pdev);
-
-	usb_remove_hcd(hcd);
-	usb_put_hcd(hcd);
-
-	return 0;
-}
-
-static struct platform_driver ohci_hcd_sh_driver = {
-	.probe		= ohci_hcd_sh_probe,
-	.remove		= ohci_hcd_sh_remove,
-	.shutdown	= usb_hcd_platform_shutdown,
-	.driver		= {
-		.name	= "sh_ohci",
-		.owner	= THIS_MODULE,
-	},
-};
-
-MODULE_ALIAS("platform:sh_ohci");
-- 
1.7.9.5

[PATCH 23/24 v2] MIPS: Alchemy: use the OHCI platform driver

[Florian Fainelli]

Convert the Alchemy platform to register the ohci-platform driver, now that
the ohci-platform driver properly handles the specific ohci-au1xxx resume
from suspend case.

This also greatly simplifies the power_{on,off} callbacks and make them
work on platform device id instead of checking the OHCI controller base
address like what was done in ohci-au1xxx.c.

Impacted defconfigs are also updated accordingly to select the OHCI platform
driver.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
Changes since v1:
- updated defconfigs accordingly
- really instantiate "ohci-platform" instead of "ohci-au1xxx"
- rebased on top of the latest OHCI HCD changes

 arch/mips/alchemy/common/platform.c |   35 +++++++++++++++++++++++++++++++++--
 arch/mips/configs/db1000_defconfig  |    1 +
 arch/mips/configs/db1200_defconfig  |    1 +
 arch/mips/configs/db1300_defconfig  |    1 +
 arch/mips/configs/db1550_defconfig  |    1 +
 arch/mips/configs/gpr_defconfig     |    1 +
 arch/mips/configs/mtx1_defconfig    |    1 +
 arch/mips/configs/pb1100_defconfig  |    1 +
 arch/mips/configs/pb1500_defconfig  |    1 +
 arch/mips/configs/pb1550_defconfig  |    1 +
 10 files changed, 42 insertions(+), 2 deletions(-)

diff --git a/arch/mips/alchemy/common/platform.c b/arch/mips/alchemy/common/platform.c
index b9a5f6d..7af941d 100644
--- a/arch/mips/alchemy/common/platform.c
+++ b/arch/mips/alchemy/common/platform.c
@@ -18,6 +18,7 @@
 #include <linux/serial_8250.h>
 #include <linux/slab.h>
 #include <linux/usb/ehci_pdriver.h>
+#include <linux/usb/ohci_pdriver.h>
 
 #include <asm/mach-au1x00/au1000.h>
 #include <asm/mach-au1x00/au1xxx_dbdma.h>
@@ -142,6 +143,34 @@ static struct usb_ehci_pdata alchemy_ehci_pdata = {
 	.power_suspend	= alchemy_ehci_power_off,
 };
 
+/* Power on callback for the ohci platform driver */
+static int alchemy_ohci_power_on(struct platform_device *pdev)
+{
+	int unit;
+
+	unit = (pdev->id == 1) ?
+		ALCHEMY_USB_OHCI1 : ALCHEMY_USB_OHCI0;
+
+	return alchemy_usb_control(unit, 1);
+}
+
+/* Power off/suspend callback for the ohci platform driver */
+static void alchemy_ohci_power_off(struct platform_device *pdev)
+{
+	int unit;
+
+	unit = (pdev->id == 1) ?
+		ALCHEMY_USB_OHCI1 : ALCHEMY_USB_OHCI0;
+
+	alchemy_usb_control(unit, 0);
+}
+
+static struct usb_ohci_pdata alchemy_ohci_pdata = {
+	.power_on		= alchemy_ohci_power_on,
+	.power_off		= alchemy_ohci_power_off,
+	.power_suspend		= alchemy_ohci_power_off,
+};
+
 static unsigned long alchemy_ohci_data[][2] __initdata = {
 	[ALCHEMY_CPU_AU1000] = { AU1000_USB_OHCI_PHYS_ADDR, AU1000_USB_HOST_INT },
 	[ALCHEMY_CPU_AU1500] = { AU1000_USB_OHCI_PHYS_ADDR, AU1500_USB_HOST_INT },
@@ -189,9 +218,10 @@ static void __init alchemy_setup_usb(int ctype)
 	res[1].start = alchemy_ohci_data[ctype][1];
 	res[1].end = res[1].start;
 	res[1].flags = IORESOURCE_IRQ;
-	pdev->name = "au1xxx-ohci";
+	pdev->name = "ohci-platform";
 	pdev->id = 0;
 	pdev->dev.dma_mask = &alchemy_ohci_dmamask;
+	pdev->dev.platform_data = &alchemy_ohci_pdata;
 
 	if (platform_device_register(pdev))
 		printk(KERN_INFO "Alchemy USB: cannot add OHCI0\n");
@@ -228,9 +258,10 @@ static void __init alchemy_setup_usb(int ctype)
 		res[1].start = AU1300_USB_INT;
 		res[1].end = res[1].start;
 		res[1].flags = IORESOURCE_IRQ;
-		pdev->name = "au1xxx-ohci";
+		pdev->name = "ohci-platform";
 		pdev->id = 1;
 		pdev->dev.dma_mask = &alchemy_ohci_dmamask;
+		pdev->dev.platform_data = &alchemy_ohci_pdata;
 
 		if (platform_device_register(pdev))
 			printk(KERN_INFO "Alchemy USB: cannot add OHCI1\n");
diff --git a/arch/mips/configs/db1000_defconfig b/arch/mips/configs/db1000_defconfig
index 17a36c1..face9d2 100644
--- a/arch/mips/configs/db1000_defconfig
+++ b/arch/mips/configs/db1000_defconfig
@@ -233,6 +233,7 @@ CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_ROOT_HUB_TT=y
 CONFIG_USB_EHCI_TT_NEWSCHED=y
 CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PLATFORM=y
 CONFIG_USB_UHCI_HCD=y
 CONFIG_USB_STORAGE=y
 CONFIG_NEW_LEDS=y
diff --git a/arch/mips/configs/db1200_defconfig b/arch/mips/configs/db1200_defconfig
index d31ac85..e36f44a 100644
--- a/arch/mips/configs/db1200_defconfig
+++ b/arch/mips/configs/db1200_defconfig
@@ -120,6 +120,7 @@ CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_HCD_PLATFORM=y
 CONFIG_USB_EHCI_ROOT_HUB_TT=y
 CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PLATFORM=y
 CONFIG_MMC=y
 # CONFIG_MMC_BLOCK_BOUNCE is not set
 CONFIG_MMC_AU1X=y
diff --git a/arch/mips/configs/db1300_defconfig b/arch/mips/configs/db1300_defconfig
index 717e7b2..6873443 100644
--- a/arch/mips/configs/db1300_defconfig
+++ b/arch/mips/configs/db1300_defconfig
@@ -292,6 +292,7 @@ CONFIG_USB_EHCI_HCD_PLATFORM=y
 CONFIG_USB_EHCI_ROOT_HUB_TT=y
 CONFIG_USB_EHCI_TT_NEWSCHED=y
 CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PLATFORM=y
 CONFIG_USB_OHCI_LITTLE_ENDIAN=y
 CONFIG_RTC_LIB=y
 CONFIG_RTC_CLASS=y
diff --git a/arch/mips/configs/db1550_defconfig b/arch/mips/configs/db1550_defconfig
index 36cda27..315fe24 100644
--- a/arch/mips/configs/db1550_defconfig
+++ b/arch/mips/configs/db1550_defconfig
@@ -187,6 +187,7 @@ CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_ROOT_HUB_TT=y
 CONFIG_USB_EHCI_TT_NEWSCHED=y
 CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PLATFORM=y
 CONFIG_USB_OHCI_LITTLE_ENDIAN=y
 CONFIG_USB_UHCI_HCD=y
 CONFIG_USB_STORAGE=y
diff --git a/arch/mips/configs/gpr_defconfig b/arch/mips/configs/gpr_defconfig
index 48a40ae..fb64589 100644
--- a/arch/mips/configs/gpr_defconfig
+++ b/arch/mips/configs/gpr_defconfig
@@ -291,6 +291,7 @@ CONFIG_USB_MON=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_ROOT_HUB_TT=y
 CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PLATFORM=y
 CONFIG_USB_STORAGE=m
 CONFIG_USB_LIBUSUAL=y
 CONFIG_USB_SERIAL=y
diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig
index 46c61edc..459018a 100644
--- a/arch/mips/configs/mtx1_defconfig
+++ b/arch/mips/configs/mtx1_defconfig
@@ -581,6 +581,7 @@ CONFIG_USB_MON=m
 CONFIG_USB_EHCI_HCD=m
 CONFIG_USB_EHCI_ROOT_HUB_TT=y
 CONFIG_USB_OHCI_HCD=m
+CONFIG_USB_OHCI_HCD_PLATFORM=y
 CONFIG_USB_UHCI_HCD=m
 CONFIG_USB_U132_HCD=m
 CONFIG_USB_SL811_HCD=m
diff --git a/arch/mips/configs/pb1100_defconfig b/arch/mips/configs/pb1100_defconfig
index 75eb1b1..b47b1a3 100644
--- a/arch/mips/configs/pb1100_defconfig
+++ b/arch/mips/configs/pb1100_defconfig
@@ -97,6 +97,7 @@ CONFIG_USB=y
 CONFIG_USB_DYNAMIC_MINORS=y
 CONFIG_USB_SUSPEND=y
 CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PLATFORM=y
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_AU1XXX=y
 CONFIG_EXT2_FS=y
diff --git a/arch/mips/configs/pb1500_defconfig b/arch/mips/configs/pb1500_defconfig
index fa00487..adbc281 100644
--- a/arch/mips/configs/pb1500_defconfig
+++ b/arch/mips/configs/pb1500_defconfig
@@ -104,6 +104,7 @@ CONFIG_USB=y
 CONFIG_USB_DYNAMIC_MINORS=y
 CONFIG_USB_OTG_WHITELIST=y
 CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PLATFORM=y
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_AU1XXX=y
 CONFIG_EXT2_FS=y
diff --git a/arch/mips/configs/pb1550_defconfig b/arch/mips/configs/pb1550_defconfig
index e83d649..ef13bba 100644
--- a/arch/mips/configs/pb1550_defconfig
+++ b/arch/mips/configs/pb1550_defconfig
@@ -108,6 +108,7 @@ CONFIG_USB_SUSPEND=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_ROOT_HUB_TT=y
 CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PLATFORM=y
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_AU1XXX=y
 CONFIG_EXT2_FS=y
-- 
1.7.9.5

[PATCH 24/24 v2] USB: OHCI: remove Alchemy OHCI platform driver.

[Florian Fainelli]

All users have been converted to use the OHCI platform driver instead, thus
making ohci-au1xxx obsolete, remove it.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
Changes since v1:
- rebased on top of the latest OHCI HCD changes

 drivers/usb/host/ohci-au1xxx.c |  234 ----------------------------------------
 drivers/usb/host/ohci-hcd.c    |    5 -
 2 files changed, 239 deletions(-)
 delete mode 100644 drivers/usb/host/ohci-au1xxx.c

diff --git a/drivers/usb/host/ohci-au1xxx.c b/drivers/usb/host/ohci-au1xxx.c
deleted file mode 100644
index c611699..0000000
--- a/drivers/usb/host/ohci-au1xxx.c
+++ /dev/null
@@ -1,234 +0,0 @@
-/*
- * OHCI HCD (Host Controller Driver) for USB.
- *
- * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
- * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
- * (C) Copyright 2002 Hewlett-Packard Company
- *
- * Bus Glue for AMD Alchemy Au1xxx
- *
- * Written by Christopher Hoover <ch@hpl.hp.com>
- * Based on fragments of previous driver by Russell King et al.
- *
- * Modified for LH7A404 from ohci-sa1111.c
- *  by Durgesh Pattamatta <pattamattad@sharpsec.com>
- * Modified for AMD Alchemy Au1xxx
- *  by Matt Porter <mporter@kernel.crashing.org>
- *
- * This file is licenced under the GPL.
- */
-
-#include <linux/platform_device.h>
-#include <linux/signal.h>
-
-#include <asm/mach-au1x00/au1000.h>
-
-
-extern int usb_disabled(void);
-
-static int __devinit ohci_au1xxx_start(struct usb_hcd *hcd)
-{
-	struct ohci_hcd	*ohci = hcd_to_ohci(hcd);
-	int ret;
-
-	ohci_dbg(ohci, "ohci_au1xxx_start, ohci:%p", ohci);
-
-	if ((ret = ohci_init(ohci)) < 0)
-		return ret;
-
-	if ((ret = ohci_run(ohci)) < 0) {
-		dev_err(hcd->self.controller, "can't start %s",
-			hcd->self.bus_name);
-		ohci_stop(hcd);
-		return ret;
-	}
-
-	return 0;
-}
-
-static const struct hc_driver ohci_au1xxx_hc_driver = {
-	.description =		hcd_name,
-	.product_desc =		"Au1xxx OHCI",
-	.hcd_priv_size =	sizeof(struct ohci_hcd),
-
-	/*
-	 * generic hardware linkage
-	 */
-	.irq =			ohci_irq,
-	.flags =		HCD_USB11 | HCD_MEMORY,
-
-	/*
-	 * basic lifecycle operations
-	 */
-	.start =		ohci_au1xxx_start,
-	.stop =			ohci_stop,
-	.shutdown =		ohci_shutdown,
-
-	/*
-	 * managing i/o requests and associated device resources
-	 */
-	.urb_enqueue =		ohci_urb_enqueue,
-	.urb_dequeue =		ohci_urb_dequeue,
-	.endpoint_disable =	ohci_endpoint_disable,
-
-	/*
-	 * scheduling support
-	 */
-	.get_frame_number =	ohci_get_frame,
-
-	/*
-	 * root hub support
-	 */
-	.hub_status_data =	ohci_hub_status_data,
-	.hub_control =		ohci_hub_control,
-#ifdef	CONFIG_PM
-	.bus_suspend =		ohci_bus_suspend,
-	.bus_resume =		ohci_bus_resume,
-#endif
-	.start_port_reset =	ohci_start_port_reset,
-};
-
-static int ohci_hcd_au1xxx_drv_probe(struct platform_device *pdev)
-{
-	int ret, unit;
-	struct usb_hcd *hcd;
-
-	if (usb_disabled())
-		return -ENODEV;
-
-	if (pdev->resource[1].flags != IORESOURCE_IRQ) {
-		pr_debug("resource[1] is not IORESOURCE_IRQ\n");
-		return -ENOMEM;
-	}
-
-	hcd = usb_create_hcd(&ohci_au1xxx_hc_driver, &pdev->dev, "au1xxx");
-	if (!hcd)
-		return -ENOMEM;
-
-	hcd->rsrc_start = pdev->resource[0].start;
-	hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1;
-
-	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
-		pr_debug("request_mem_region failed\n");
-		ret = -EBUSY;
-		goto err1;
-	}
-
-	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
-	if (!hcd->regs) {
-		pr_debug("ioremap failed\n");
-		ret = -ENOMEM;
-		goto err2;
-	}
-
-	unit = (hcd->rsrc_start == AU1300_USB_OHCI1_PHYS_ADDR) ?
-			ALCHEMY_USB_OHCI1 : ALCHEMY_USB_OHCI0;
-	if (alchemy_usb_control(unit, 1)) {
-		printk(KERN_INFO "%s: controller init failed!\n", pdev->name);
-		ret = -ENODEV;
-		goto err3;
-	}
-
-	ohci_hcd_init(hcd_to_ohci(hcd));
-
-	ret = usb_add_hcd(hcd, pdev->resource[1].start,
-			  IRQF_SHARED);
-	if (ret == 0) {
-		platform_set_drvdata(pdev, hcd);
-		return ret;
-	}
-
-	alchemy_usb_control(unit, 0);
-err3:
-	iounmap(hcd->regs);
-err2:
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-err1:
-	usb_put_hcd(hcd);
-	return ret;
-}
-
-static int ohci_hcd_au1xxx_drv_remove(struct platform_device *pdev)
-{
-	struct usb_hcd *hcd = platform_get_drvdata(pdev);
-	int unit;
-
-	unit = (hcd->rsrc_start == AU1300_USB_OHCI1_PHYS_ADDR) ?
-			ALCHEMY_USB_OHCI1 : ALCHEMY_USB_OHCI0;
-	usb_remove_hcd(hcd);
-	alchemy_usb_control(unit, 0);
-	iounmap(hcd->regs);
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-	usb_put_hcd(hcd);
-	platform_set_drvdata(pdev, NULL);
-
-	return 0;
-}
-
-#ifdef CONFIG_PM
-static int ohci_hcd_au1xxx_drv_suspend(struct device *dev)
-{
-	struct usb_hcd *hcd = dev_get_drvdata(dev);
-	struct ohci_hcd	*ohci = hcd_to_ohci(hcd);
-	unsigned long flags;
-	int rc;
-
-	rc = 0;
-
-	/* Root hub was already suspended. Disable irq emission and
-	 * mark HW unaccessible, bail out if RH has been resumed. Use
-	 * the spinlock to properly synchronize with possible pending
-	 * RH suspend or resume activity.
-	 */
-	spin_lock_irqsave(&ohci->lock, flags);
-	if (ohci->rh_state != OHCI_RH_SUSPENDED) {
-		rc = -EINVAL;
-		goto bail;
-	}
-	ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);
-	(void)ohci_readl(ohci, &ohci->regs->intrdisable);
-
-	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
-
-	alchemy_usb_control(ALCHEMY_USB_OHCI0, 0);
-bail:
-	spin_unlock_irqrestore(&ohci->lock, flags);
-
-	return rc;
-}
-
-static int ohci_hcd_au1xxx_drv_resume(struct device *dev)
-{
-	struct usb_hcd *hcd = dev_get_drvdata(dev);
-
-	alchemy_usb_control(ALCHEMY_USB_OHCI0, 1);
-
-	set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
-	ohci_finish_controller_resume(hcd);
-
-	return 0;
-}
-
-static const struct dev_pm_ops au1xxx_ohci_pmops = {
-	.suspend	= ohci_hcd_au1xxx_drv_suspend,
-	.resume		= ohci_hcd_au1xxx_drv_resume,
-};
-
-#define AU1XXX_OHCI_PMOPS &au1xxx_ohci_pmops
-
-#else
-#define AU1XXX_OHCI_PMOPS NULL
-#endif
-
-static struct platform_driver ohci_hcd_au1xxx_driver = {
-	.probe		= ohci_hcd_au1xxx_drv_probe,
-	.remove		= ohci_hcd_au1xxx_drv_remove,
-	.shutdown	= usb_hcd_platform_shutdown,
-	.driver		= {
-		.name	= "au1xxx-ohci",
-		.owner	= THIS_MODULE,
-		.pm	= AU1XXX_OHCI_PMOPS,
-	},
-};
-
-MODULE_ALIAS("platform:au1xxx-ohci");
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 2204759..4476a39 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1098,11 +1098,6 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER		ohci_hcd_ep93xx_driver
 #endif
 
-#ifdef CONFIG_MIPS_ALCHEMY
-#include "ohci-au1xxx.c"
-#define PLATFORM_DRIVER		ohci_hcd_au1xxx_driver
-#endif
-
 #ifdef CONFIG_USB_OHCI_HCD_PPC_SOC
 #include "ohci-ppc-soc.c"
 #define PLATFORM_DRIVER		ohci_hcd_ppc_soc_driver
-- 
1.7.9.5