mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-14 06:24:53 +08:00
usb: host: ehci-mxc: Remove the driver
The ehci-mxc driver was only used by i.MX non-DT platforms. Since 5.10-rc1, i.MX has been converted to a DT-only platform and all board files are gone. Remove the ehci-mxc driver as there are no more users at all. Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Fabio Estevam <festevam@gmail.com> Link: https://lore.kernel.org/r/20201113171231.2205-1-festevam@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Fabio Estevam
Greg Kroah-Hartman
parent
e625f3dede
commit
e7018751d2
@ -213,13 +213,6 @@ config USB_EHCI_FSL
|
||||
help
|
||||
Variation of ARC USB block used in some Freescale chips.
|
||||
|
||||
config USB_EHCI_MXC
|
||||
tristate "Support for Freescale i.MX on-chip EHCI USB controller"
|
||||
depends on ARCH_MXC || COMPILE_TEST
|
||||
select USB_EHCI_ROOT_HUB_TT
|
||||
help
|
||||
Variation of ARC USB block used in some Freescale chips.
|
||||
|
||||
config USB_EHCI_HCD_NPCM7XX
|
||||
tristate "Support for Nuvoton NPCM7XX on-chip EHCI USB controller"
|
||||
depends on (USB_EHCI_HCD && ARCH_NPCM7XX) || COMPILE_TEST
|
||||
|
||||
@ -40,7 +40,6 @@ obj-$(CONFIG_USB_PCI) += pci-quirks.o
|
||||
obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o
|
||||
obj-$(CONFIG_USB_EHCI_PCI) += ehci-pci.o
|
||||
obj-$(CONFIG_USB_EHCI_HCD_PLATFORM) += ehci-platform.o
|
||||
obj-$(CONFIG_USB_EHCI_MXC) += ehci-mxc.o
|
||||
obj-$(CONFIG_USB_EHCI_HCD_NPCM7XX) += ehci-npcm7xx.o
|
||||
obj-$(CONFIG_USB_EHCI_HCD_OMAP) += ehci-omap.o
|
||||
obj-$(CONFIG_USB_EHCI_HCD_ORION) += ehci-orion.o
|
||||
|
||||
@ -1,213 +0,0 @@
|
||||
// SPDX-License-Identifier: GPL-2.0+
|
||||
/*
|
||||
* Copyright (c) 2008 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
|
||||
* Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/clk.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/usb/otg.h>
|
||||
#include <linux/usb/ulpi.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/usb.h>
|
||||
#include <linux/usb/hcd.h>
|
||||
#include <linux/platform_data/usb-ehci-mxc.h>
|
||||
#include "ehci.h"
|
||||
|
||||
#define DRIVER_DESC "Freescale On-Chip EHCI Host driver"
|
||||
|
||||
static const char hcd_name[] = "ehci-mxc";
|
||||
|
||||
#define ULPI_VIEWPORT_OFFSET 0x170
|
||||
|
||||
struct ehci_mxc_priv {
|
||||
struct clk *usbclk, *ahbclk, *phyclk;
|
||||
};
|
||||
|
||||
static struct hc_driver __read_mostly ehci_mxc_hc_driver;
|
||||
|
||||
static const struct ehci_driver_overrides ehci_mxc_overrides __initconst = {
|
||||
.extra_priv_size = sizeof(struct ehci_mxc_priv),
|
||||
};
|
||||
|
||||
static int ehci_mxc_drv_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct device *dev = &pdev->dev;
|
||||
struct mxc_usbh_platform_data *pdata = dev_get_platdata(dev);
|
||||
struct usb_hcd *hcd;
|
||||
struct resource *res;
|
||||
int irq, ret;
|
||||
struct ehci_mxc_priv *priv;
|
||||
struct ehci_hcd *ehci;
|
||||
|
||||
if (!pdata) {
|
||||
dev_err(dev, "No platform data given, bailing out.\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
irq = platform_get_irq(pdev, 0);
|
||||
if (irq < 0)
|
||||
return irq;
|
||||
|
||||
hcd = usb_create_hcd(&ehci_mxc_hc_driver, dev, dev_name(dev));
|
||||
if (!hcd)
|
||||
return -ENOMEM;
|
||||
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
hcd->regs = devm_ioremap_resource(dev, res);
|
||||
if (IS_ERR(hcd->regs)) {
|
||||
ret = PTR_ERR(hcd->regs);
|
||||
goto err_alloc;
|
||||
}
|
||||
hcd->rsrc_start = res->start;
|
||||
hcd->rsrc_len = resource_size(res);
|
||||
|
||||
hcd->has_tt = 1;
|
||||
ehci = hcd_to_ehci(hcd);
|
||||
priv = (struct ehci_mxc_priv *) ehci->priv;
|
||||
|
||||
/* enable clocks */
|
||||
priv->usbclk = devm_clk_get(dev, "ipg");
|
||||
if (IS_ERR(priv->usbclk)) {
|
||||
ret = PTR_ERR(priv->usbclk);
|
||||
goto err_alloc;
|
||||
}
|
||||
clk_prepare_enable(priv->usbclk);
|
||||
|
||||
priv->ahbclk = devm_clk_get(dev, "ahb");
|
||||
if (IS_ERR(priv->ahbclk)) {
|
||||
ret = PTR_ERR(priv->ahbclk);
|
||||
goto err_clk_ahb;
|
||||
}
|
||||
clk_prepare_enable(priv->ahbclk);
|
||||
|
||||
/* "dr" device has its own clock on i.MX51 */
|
||||
priv->phyclk = devm_clk_get(dev, "phy");
|
||||
if (IS_ERR(priv->phyclk))
|
||||
priv->phyclk = NULL;
|
||||
if (priv->phyclk)
|
||||
clk_prepare_enable(priv->phyclk);
|
||||
|
||||
/* call platform specific init function */
|
||||
if (pdata->init) {
|
||||
ret = pdata->init(pdev);
|
||||
if (ret) {
|
||||
dev_err(dev, "platform init failed\n");
|
||||
goto err_init;
|
||||
}
|
||||
/* platforms need some time to settle changed IO settings */
|
||||
mdelay(10);
|
||||
}
|
||||
|
||||
/* EHCI registers start at offset 0x100 */
|
||||
ehci->caps = hcd->regs + 0x100;
|
||||
ehci->regs = hcd->regs + 0x100 +
|
||||
HC_LENGTH(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase));
|
||||
|
||||
/* set up the PORTSCx register */
|
||||
ehci_writel(ehci, pdata->portsc, &ehci->regs->port_status[0]);
|
||||
|
||||
/* is this really needed? */
|
||||
msleep(10);
|
||||
|
||||
/* Initialize the transceiver */
|
||||
if (pdata->otg) {
|
||||
pdata->otg->io_priv = hcd->regs + ULPI_VIEWPORT_OFFSET;
|
||||
ret = usb_phy_init(pdata->otg);
|
||||
if (ret) {
|
||||
dev_err(dev, "unable to init transceiver, probably missing\n");
|
||||
ret = -ENODEV;
|
||||
goto err_add;
|
||||
}
|
||||
ret = otg_set_vbus(pdata->otg->otg, 1);
|
||||
if (ret) {
|
||||
dev_err(dev, "unable to enable vbus on transceiver\n");
|
||||
goto err_add;
|
||||
}
|
||||
}
|
||||
|
||||
platform_set_drvdata(pdev, hcd);
|
||||
|
||||
ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
|
||||
if (ret)
|
||||
goto err_add;
|
||||
|
||||
device_wakeup_enable(hcd->self.controller);
|
||||
return 0;
|
||||
|
||||
err_add:
|
||||
if (pdata && pdata->exit)
|
||||
pdata->exit(pdev);
|
||||
err_init:
|
||||
if (priv->phyclk)
|
||||
clk_disable_unprepare(priv->phyclk);
|
||||
|
||||
clk_disable_unprepare(priv->ahbclk);
|
||||
err_clk_ahb:
|
||||
clk_disable_unprepare(priv->usbclk);
|
||||
err_alloc:
|
||||
usb_put_hcd(hcd);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int ehci_mxc_drv_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct mxc_usbh_platform_data *pdata = dev_get_platdata(&pdev->dev);
|
||||
struct usb_hcd *hcd = platform_get_drvdata(pdev);
|
||||
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
|
||||
struct ehci_mxc_priv *priv = (struct ehci_mxc_priv *) ehci->priv;
|
||||
|
||||
usb_remove_hcd(hcd);
|
||||
|
||||
if (pdata && pdata->exit)
|
||||
pdata->exit(pdev);
|
||||
|
||||
if (pdata && pdata->otg)
|
||||
usb_phy_shutdown(pdata->otg);
|
||||
|
||||
clk_disable_unprepare(priv->usbclk);
|
||||
clk_disable_unprepare(priv->ahbclk);
|
||||
|
||||
if (priv->phyclk)
|
||||
clk_disable_unprepare(priv->phyclk);
|
||||
|
||||
usb_put_hcd(hcd);
|
||||
return 0;
|
||||
}
|
||||
|
||||
MODULE_ALIAS("platform:mxc-ehci");
|
||||
|
||||
static struct platform_driver ehci_mxc_driver = {
|
||||
.probe = ehci_mxc_drv_probe,
|
||||
.remove = ehci_mxc_drv_remove,
|
||||
.shutdown = usb_hcd_platform_shutdown,
|
||||
.driver = {
|
||||
.name = "mxc-ehci",
|
||||
},
|
||||
};
|
||||
|
||||
static int __init ehci_mxc_init(void)
|
||||
{
|
||||
if (usb_disabled())
|
||||
return -ENODEV;
|
||||
|
||||
pr_info("%s: " DRIVER_DESC "\n", hcd_name);
|
||||
|
||||
ehci_init_driver(&ehci_mxc_hc_driver, &ehci_mxc_overrides);
|
||||
return platform_driver_register(&ehci_mxc_driver);
|
||||
}
|
||||
module_init(ehci_mxc_init);
|
||||
|
||||
static void __exit ehci_mxc_cleanup(void)
|
||||
{
|
||||
platform_driver_unregister(&ehci_mxc_driver);
|
||||
}
|
||||
module_exit(ehci_mxc_cleanup);
|
||||
|
||||
MODULE_DESCRIPTION(DRIVER_DESC);
|
||||
MODULE_AUTHOR("Sascha Hauer");
|
||||
MODULE_LICENSE("GPL");
|
||||
@ -1,14 +0,0 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
#ifndef __INCLUDE_ASM_ARCH_MXC_EHCI_H
|
||||
#define __INCLUDE_ASM_ARCH_MXC_EHCI_H
|
||||
|
||||
struct mxc_usbh_platform_data {
|
||||
int (*init)(struct platform_device *pdev);
|
||||
int (*exit)(struct platform_device *pdev);
|
||||
|
||||
unsigned int portsc;
|
||||
struct usb_phy *otg;
|
||||
};
|
||||
|
||||
#endif /* __INCLUDE_ASM_ARCH_MXC_EHCI_H */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user