usb: remove ohci-tmio driver

The TMIO MFD driver is getting removed, so its OHCI portion is not
used any more either.

Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: linux-usb@vger.kernel.org
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

2 files changed, 0 insertions, 382 deletions

diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 0457dd9f6c19..4f9982ecfb58 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1264,11 +1264,6 @@ MODULE_LICENSE ("GPL");
 #define SM501_OHCI_DRIVER	ohci_hcd_sm501_driver
 #endif
 
-#ifdef CONFIG_MFD_TC6393XB
-#include "ohci-tmio.c"
-#define TMIO_OHCI_DRIVER	ohci_hcd_tmio_driver
-#endif
-
 static int __init ohci_hcd_mod_init(void)
 {
 	int retval = 0;
@@ -1306,19 +1301,9 @@ static int __init ohci_hcd_mod_init(void)
 		goto error_sm501;
 #endif
 
-#ifdef TMIO_OHCI_DRIVER
-	retval = platform_driver_register(&TMIO_OHCI_DRIVER);
-	if (retval < 0)
-		goto error_tmio;
-#endif
-
 	return retval;
 
 	/* Error path */
-#ifdef TMIO_OHCI_DRIVER
-	platform_driver_unregister(&TMIO_OHCI_DRIVER);
- error_tmio:
-#endif
 #ifdef SM501_OHCI_DRIVER
 	platform_driver_unregister(&SM501_OHCI_DRIVER);
  error_sm501:
@@ -1345,9 +1330,6 @@ module_init(ohci_hcd_mod_init);
 
 static void __exit ohci_hcd_mod_exit(void)
 {
-#ifdef TMIO_OHCI_DRIVER
-	platform_driver_unregister(&TMIO_OHCI_DRIVER);
-#endif
 #ifdef SM501_OHCI_DRIVER
 	platform_driver_unregister(&SM501_OHCI_DRIVER);
 #endif
diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c
deleted file mode 100644
index 49539b9f0e94..000000000000
--- a/drivers/usb/host/ohci-tmio.c
+++ /dev/null
@@ -1,364 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * 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 Toshiba Mobile IO(TMIO) Controller's OHCI core
- * (C) Copyright 2005 Chris Humbert <mahadri-usb@drigon.com>
- * (C) Copyright 2007, 2008 Dmitry Baryshkov <dbaryshkov@gmail.com>
- *
- * This is known to work with the following variants:
- *	TC6393XB revision 3	(32kB SRAM)
- *
- * The TMIO's OHCI core DMAs through a small internal buffer that
- * is directly addressable by the CPU.
- *
- * Written from sparse documentation from Toshiba and Sharp's driver
- * for the 2.4 kernel,
- *	usb-ohci-tc6393.c(C) Copyright 2004 Lineo Solutions, Inc.
- */
-
-#include <linux/platform_device.h>
-#include <linux/mfd/core.h>
-#include <linux/mfd/tmio.h>
-#include <linux/dma-mapping.h>
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * USB Host Controller Configuration Register
- */
-#define CCR_REVID	0x08	/* b Revision ID				*/
-#define CCR_BASE	0x10	/* l USB Control Register Base Address Low	*/
-#define CCR_ILME	0x40	/* b Internal Local Memory Enable		*/
-#define CCR_PM		0x4c	/* w Power Management			*/
-#define CCR_INTC	0x50	/* b INT Control				*/
-#define CCR_LMW1L	0x54	/* w Local Memory Window 1 LMADRS Low	*/
-#define CCR_LMW1H	0x56	/* w Local Memory Window 1 LMADRS High	*/
-#define CCR_LMW1BL	0x58	/* w Local Memory Window 1 Base Address Low	*/
-#define CCR_LMW1BH	0x5A	/* w Local Memory Window 1 Base Address High	*/
-#define CCR_LMW2L	0x5C	/* w Local Memory Window 2 LMADRS Low	*/
-#define CCR_LMW2H	0x5E	/* w Local Memory Window 2 LMADRS High	*/
-#define CCR_LMW2BL	0x60	/* w Local Memory Window 2 Base Address Low	*/
-#define CCR_LMW2BH	0x62	/* w Local Memory Window 2 Base Address High	*/
-#define CCR_MISC	0xFC	/* b MISC					*/
-
-#define CCR_PM_GKEN      0x0001
-#define CCR_PM_CKRNEN    0x0002
-#define CCR_PM_USBPW1    0x0004
-#define CCR_PM_USBPW2    0x0008
-#define CCR_PM_USBPW3    0x0010
-#define CCR_PM_PMEE      0x0100
-#define CCR_PM_PMES      0x8000
-
-/*-------------------------------------------------------------------------*/
-
-struct tmio_hcd {
-	void __iomem		*ccr;
-	spinlock_t		lock; /* protects RMW cycles */
-};
-
-#define hcd_to_tmio(hcd)	((struct tmio_hcd *)(hcd_to_ohci(hcd) + 1))
-
-/*-------------------------------------------------------------------------*/
-
-static void tmio_write_pm(struct platform_device *dev)
-{
-	struct usb_hcd *hcd = platform_get_drvdata(dev);
-	struct tmio_hcd *tmio = hcd_to_tmio(hcd);
-	u16 pm;
-	unsigned long flags;
-
-	spin_lock_irqsave(&tmio->lock, flags);
-
-	pm = CCR_PM_GKEN | CCR_PM_CKRNEN |
-	     CCR_PM_PMEE | CCR_PM_PMES;
-
-	tmio_iowrite16(pm, tmio->ccr + CCR_PM);
-	spin_unlock_irqrestore(&tmio->lock, flags);
-}
-
-static void tmio_stop_hc(struct platform_device *dev)
-{
-	struct usb_hcd *hcd = platform_get_drvdata(dev);
-	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
-	struct tmio_hcd *tmio = hcd_to_tmio(hcd);
-	u16 pm;
-
-	pm = CCR_PM_GKEN | CCR_PM_CKRNEN;
-	switch (ohci->num_ports) {
-		default:
-			dev_err(&dev->dev, "Unsupported amount of ports: %d\n", ohci->num_ports);
-			fallthrough;
-		case 3:
-			pm |= CCR_PM_USBPW3;
-			fallthrough;
-		case 2:
-			pm |= CCR_PM_USBPW2;
-			fallthrough;
-		case 1:
-			pm |= CCR_PM_USBPW1;
-	}
-	tmio_iowrite8(0, tmio->ccr + CCR_INTC);
-	tmio_iowrite8(0, tmio->ccr + CCR_ILME);
-	tmio_iowrite16(0, tmio->ccr + CCR_BASE);
-	tmio_iowrite16(0, tmio->ccr + CCR_BASE + 2);
-	tmio_iowrite16(pm, tmio->ccr + CCR_PM);
-}
-
-static void tmio_start_hc(struct platform_device *dev)
-{
-	struct usb_hcd *hcd = platform_get_drvdata(dev);
-	struct tmio_hcd *tmio = hcd_to_tmio(hcd);
-	unsigned long base = hcd->rsrc_start;
-
-	tmio_write_pm(dev);
-	tmio_iowrite16(base, tmio->ccr + CCR_BASE);
-	tmio_iowrite16(base >> 16, tmio->ccr + CCR_BASE + 2);
-	tmio_iowrite8(1, tmio->ccr + CCR_ILME);
-	tmio_iowrite8(2, tmio->ccr + CCR_INTC);
-
-	dev_info(&dev->dev, "revision %d @ 0x%08llx, irq %d\n",
-			tmio_ioread8(tmio->ccr + CCR_REVID),
-			(u64) hcd->rsrc_start, hcd->irq);
-}
-
-static int ohci_tmio_start(struct usb_hcd *hcd)
-{
-	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
-	int ret;
-
-	if ((ret = ohci_init(ohci)) < 0)
-		return ret;
-
-	if ((ret = ohci_run(ohci)) < 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 ohci_tmio_hc_driver = {
-	.description =		hcd_name,
-	.product_desc =		"TMIO OHCI USB Host Controller",
-	.hcd_priv_size =	sizeof(struct ohci_hcd) + sizeof (struct tmio_hcd),
-
-	/* generic hardware linkage */
-	.irq =			ohci_irq,
-	.flags =		HCD_USB11 | HCD_MEMORY,
-
-	/* basic lifecycle operations */
-	.start =		ohci_tmio_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 struct platform_driver ohci_hcd_tmio_driver;
-
-static int ohci_hcd_tmio_drv_probe(struct platform_device *dev)
-{
-	const struct mfd_cell *cell = mfd_get_cell(dev);
-	struct resource *regs = platform_get_resource(dev, IORESOURCE_MEM, 0);
-	struct resource *config = platform_get_resource(dev, IORESOURCE_MEM, 1);
-	struct resource *sram = platform_get_resource(dev, IORESOURCE_MEM, 2);
-	int irq = platform_get_irq(dev, 0);
-	struct tmio_hcd *tmio;
-	struct ohci_hcd *ohci;
-	struct usb_hcd *hcd;
-	int ret;
-
-	if (usb_disabled())
-		return -ENODEV;
-
-	if (!cell || !regs || !config || !sram)
-		return -EINVAL;
-
-	if (irq < 0)
-		return irq;
-
-	hcd = usb_create_hcd(&ohci_tmio_hc_driver, &dev->dev, dev_name(&dev->dev));
-	if (!hcd) {
-		ret = -ENOMEM;
-		goto err_usb_create_hcd;
-	}
-
-	hcd->rsrc_start = regs->start;
-	hcd->rsrc_len = resource_size(regs);
-
-	tmio = hcd_to_tmio(hcd);
-
-	spin_lock_init(&tmio->lock);
-
-	tmio->ccr = ioremap(config->start, resource_size(config));
-	if (!tmio->ccr) {
-		ret = -ENOMEM;
-		goto err_ioremap_ccr;
-	}
-
-	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
-	if (!hcd->regs) {
-		ret = -ENOMEM;
-		goto err_ioremap_regs;
-	}
-
-	if (cell->enable) {
-		ret = cell->enable(dev);
-		if (ret)
-			goto err_enable;
-	}
-
-	tmio_start_hc(dev);
-	ohci = hcd_to_ohci(hcd);
-	ohci_hcd_init(ohci);
-
-	ret = usb_hcd_setup_local_mem(hcd, sram->start, sram->start,
-				      resource_size(sram));
-	if (ret < 0)
-		goto err_enable;
-
-	ret = usb_add_hcd(hcd, irq, 0);
-	if (ret)
-		goto err_add_hcd;
-
-	device_wakeup_enable(hcd->self.controller);
-	if (ret == 0)
-		return ret;
-
-	usb_remove_hcd(hcd);
-
-err_add_hcd:
-	tmio_stop_hc(dev);
-	if (cell->disable)
-		cell->disable(dev);
-err_enable:
-	iounmap(hcd->regs);
-err_ioremap_regs:
-	iounmap(tmio->ccr);
-err_ioremap_ccr:
-	usb_put_hcd(hcd);
-err_usb_create_hcd:
-
-	return ret;
-}
-
-static int ohci_hcd_tmio_drv_remove(struct platform_device *dev)
-{
-	struct usb_hcd *hcd = platform_get_drvdata(dev);
-	struct tmio_hcd *tmio = hcd_to_tmio(hcd);
-	const struct mfd_cell *cell = mfd_get_cell(dev);
-
-	usb_remove_hcd(hcd);
-	tmio_stop_hc(dev);
-	if (cell->disable)
-		cell->disable(dev);
-	iounmap(hcd->regs);
-	iounmap(tmio->ccr);
-	usb_put_hcd(hcd);
-
-	return 0;
-}
-
-#ifdef CONFIG_PM
-static int ohci_hcd_tmio_drv_suspend(struct platform_device *dev, pm_message_t state)
-{
-	const struct mfd_cell *cell = mfd_get_cell(dev);
-	struct usb_hcd *hcd = platform_get_drvdata(dev);
-	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
-	struct tmio_hcd *tmio = hcd_to_tmio(hcd);
-	unsigned long flags;
-	u8 misc;
-	int ret;
-
-	if (time_before(jiffies, ohci->next_statechange))
-		msleep(5);
-	ohci->next_statechange = jiffies;
-
-	spin_lock_irqsave(&tmio->lock, flags);
-
-	misc = tmio_ioread8(tmio->ccr + CCR_MISC);
-	misc |= 1 << 3; /* USSUSP */
-	tmio_iowrite8(misc, tmio->ccr + CCR_MISC);
-
-	spin_unlock_irqrestore(&tmio->lock, flags);
-
-	if (cell->suspend) {
-		ret = cell->suspend(dev);
-		if (ret)
-			return ret;
-	}
-	return 0;
-}
-
-static int ohci_hcd_tmio_drv_resume(struct platform_device *dev)
-{
-	const struct mfd_cell *cell = mfd_get_cell(dev);
-	struct usb_hcd *hcd = platform_get_drvdata(dev);
-	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
-	struct tmio_hcd *tmio = hcd_to_tmio(hcd);
-	unsigned long flags;
-	u8 misc;
-	int ret;
-
-	if (time_before(jiffies, ohci->next_statechange))
-		msleep(5);
-	ohci->next_statechange = jiffies;
-
-	if (cell->resume) {
-		ret = cell->resume(dev);
-		if (ret)
-			return ret;
-	}
-
-	tmio_start_hc(dev);
-
-	spin_lock_irqsave(&tmio->lock, flags);
-
-	misc = tmio_ioread8(tmio->ccr + CCR_MISC);
-	misc &= ~(1 << 3); /* USSUSP */
-	tmio_iowrite8(misc, tmio->ccr + CCR_MISC);
-
-	spin_unlock_irqrestore(&tmio->lock, flags);
-
-	ohci_resume(hcd, false);
-
-	return 0;
-}
-#else
-#define ohci_hcd_tmio_drv_suspend NULL
-#define ohci_hcd_tmio_drv_resume NULL
-#endif
-
-static struct platform_driver ohci_hcd_tmio_driver = {
-	.probe		= ohci_hcd_tmio_drv_probe,
-	.remove		= ohci_hcd_tmio_drv_remove,
-	.shutdown	= usb_hcd_platform_shutdown,
-	.suspend	= ohci_hcd_tmio_drv_suspend,
-	.resume		= ohci_hcd_tmio_drv_resume,
-	.driver		= {
-		.name	= "tmio-ohci",
-	},
-};