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Date: Mon, 8 Oct 2012 15:11:33 +0200
From: Florian Fainelli <florian@...nwrt.org>
To: stern@...land.harvard.edu
Cc: linux-usb@...r.kernel.org, Florian Fainelli <florian@...nwrt.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Hauke Mehrtens <hauke@...ke-m.de>, Felipe Balbi <balbi@...com>,
linux-kernel@...r.kernel.org
Subject: [PATCH 19/32 v4] USB: OHCI: remove CNS3xxx OHCI platform driver
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@...nwrt.org>
---
Changes in v4:
- rebased against greg's latest usb-next
No changes in v3
Changes in v2:
- 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 d21c007..e43c9c8 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -400,9 +400,13 @@ 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 601585b..501f4af 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1168,11 +1168,6 @@ 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
--
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