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-rw-r--r--drivers/usb/host/ohci-at91.c35
-rw-r--r--drivers/usb/host/ohci-s3c2410.c41
-rw-r--r--drivers/usb/host/pci-quirks.c1
-rw-r--r--drivers/usb/host/pci-quirks.h7
-rw-r--r--drivers/usb/host/uhci-hcd.c7
-rw-r--r--drivers/usb/host/uhci-hcd.h1
-rw-r--r--drivers/usb/host/uhci-hub.c18
7 files changed, 65 insertions, 45 deletions
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 980030d684d5..6b7350b52419 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -20,7 +20,7 @@
#include <asm/arch/board.h>
#ifndef CONFIG_ARCH_AT91RM9200
-#error "This file is AT91RM9200 bus glue. CONFIG_ARCH_AT91RM9200 must be defined."
+#error "CONFIG_ARCH_AT91RM9200 must be defined."
#endif
/* interface and function clocks */
@@ -84,8 +84,6 @@ static int usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *);
* 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.
- *
- * Store this function in the HCD's struct pci_driver as probe().
*/
int usb_hcd_at91_probe (const struct hc_driver *driver, struct platform_device *pdev)
{
@@ -148,7 +146,6 @@ int usb_hcd_at91_probe (const struct hc_driver *driver, struct platform_device *
}
-/* may be called without controller electrically present */
/* may be called with controller, bus, and devices active */
/**
@@ -166,11 +163,11 @@ static int usb_hcd_at91_remove (struct usb_hcd *hcd, struct platform_device *pde
usb_remove_hcd(hcd);
at91_stop_hc(pdev);
iounmap(hcd->regs);
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
- clk_put(fclk);
- clk_put(iclk);
- fclk = iclk = NULL;
+ clk_put(fclk);
+ clk_put(iclk);
+ fclk = iclk = NULL;
dev_set_drvdata(&pdev->dev, NULL);
return 0;
@@ -235,8 +232,8 @@ static const struct hc_driver ohci_at91_hc_driver = {
.hub_control = ohci_hub_control,
#ifdef CONFIG_PM
- .hub_suspend = ohci_hub_suspend,
- .hub_resume = ohci_hub_resume,
+ .bus_suspend = ohci_bus_suspend,
+ .bus_resume = ohci_bus_resume,
#endif
.start_port_reset = ohci_start_port_reset,
};
@@ -254,21 +251,21 @@ static int ohci_hcd_at91_drv_remove(struct platform_device *dev)
}
#ifdef CONFIG_PM
-static int ohci_hcd_at91_drv_suspend(struct platform_device *dev, u32 state, u32 level)
-{
- printk("%s(%s:%d): not implemented yet\n",
- __func__, __FILE__, __LINE__);
+/* REVISIT suspend/resume look "too" simple here */
+
+static int
+ohci_hcd_at91_drv_suspend(struct platform_device *dev, pm_message_t mesg)
+{
clk_disable(fclk);
+ clk_disable(iclk);
return 0;
}
-static int ohci_hcd_at91_drv_resume(struct platform_device *dev, u32 state)
+static int ohci_hcd_at91_drv_resume(struct platform_device *dev)
{
- printk("%s(%s:%d): not implemented yet\n",
- __func__, __FILE__, __LINE__);
-
+ clk_enable(iclk);
clk_enable(fclk);
return 0;
@@ -278,6 +275,8 @@ static int ohci_hcd_at91_drv_resume(struct platform_device *dev, u32 state)
#define ohci_hcd_at91_drv_resume NULL
#endif
+MODULE_ALIAS("at91rm9200-ohci");
+
static struct platform_driver ohci_hcd_at91_driver = {
.probe = ohci_hcd_at91_drv_probe,
.remove = ohci_hcd_at91_drv_remove,
diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c
index 682bf2215660..1da5de573a6f 100644
--- a/drivers/usb/host/ohci-s3c2410.c
+++ b/drivers/usb/host/ohci-s3c2410.c
@@ -30,6 +30,7 @@
/* clock device associated with the hcd */
static struct clk *clk;
+static struct clk *usb_clk;
/* forward definitions */
@@ -37,7 +38,7 @@ static void s3c2410_hcd_oc(struct s3c2410_hcd_info *info, int port_oc);
/* conversion functions */
-struct s3c2410_hcd_info *to_s3c2410_info(struct usb_hcd *hcd)
+static struct s3c2410_hcd_info *to_s3c2410_info(struct usb_hcd *hcd)
{
return hcd->self.controller->platform_data;
}
@@ -47,6 +48,10 @@ static void s3c2410_start_hc(struct platform_device *dev, struct usb_hcd *hcd)
struct s3c2410_hcd_info *info = dev->dev.platform_data;
dev_dbg(&dev->dev, "s3c2410_start_hc:\n");
+
+ clk_enable(usb_clk);
+ mdelay(2); /* let the bus clock stabilise */
+
clk_enable(clk);
if (info != NULL) {
@@ -75,6 +80,7 @@ static void s3c2410_stop_hc(struct platform_device *dev)
}
clk_disable(clk);
+ clk_disable(usb_clk);
}
/* ohci_s3c2410_hub_status_data
@@ -316,7 +322,8 @@ static void s3c2410_hcd_oc(struct s3c2410_hcd_info *info, int port_oc)
*
*/
-void usb_hcd_s3c2410_remove (struct usb_hcd *hcd, struct platform_device *dev)
+static void
+usb_hcd_s3c2410_remove (struct usb_hcd *hcd, struct platform_device *dev)
{
usb_remove_hcd(hcd);
s3c2410_stop_hc(dev);
@@ -334,8 +341,8 @@ void usb_hcd_s3c2410_remove (struct usb_hcd *hcd, struct platform_device *dev)
* through the hotplug entry's driver_data.
*
*/
-int usb_hcd_s3c2410_probe (const struct hc_driver *driver,
- struct platform_device *dev)
+static int usb_hcd_s3c2410_probe (const struct hc_driver *driver,
+ struct platform_device *dev)
{
struct usb_hcd *hcd = NULL;
int retval;
@@ -353,14 +360,21 @@ int usb_hcd_s3c2410_probe (const struct hc_driver *driver,
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
dev_err(&dev->dev, "request_mem_region failed");
retval = -EBUSY;
- goto err0;
+ goto err_put;
}
- clk = clk_get(NULL, "usb-host");
+ clk = clk_get(&dev->dev, "usb-host");
if (IS_ERR(clk)) {
dev_err(&dev->dev, "cannot get usb-host clock\n");
retval = -ENOENT;
- goto err1;
+ goto err_mem;
+ }
+
+ usb_clk = clk_get(&dev->dev, "upll");
+ if (IS_ERR(usb_clk)) {
+ dev_err(&dev->dev, "cannot get usb-host clock\n");
+ retval = -ENOENT;
+ goto err_clk;
}
s3c2410_start_hc(dev, hcd);
@@ -369,26 +383,29 @@ int usb_hcd_s3c2410_probe (const struct hc_driver *driver,
if (!hcd->regs) {
dev_err(&dev->dev, "ioremap failed\n");
retval = -ENOMEM;
- goto err2;
+ goto err_ioremap;
}
ohci_hcd_init(hcd_to_ohci(hcd));
retval = usb_add_hcd(hcd, dev->resource[1].start, SA_INTERRUPT);
if (retval != 0)
- goto err2;
+ goto err_ioremap;
return 0;
- err2:
+ err_ioremap:
s3c2410_stop_hc(dev);
iounmap(hcd->regs);
+ clk_put(usb_clk);
+
+ err_clk:
clk_put(clk);
- err1:
+ err_mem:
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
- err0:
+ err_put:
usb_put_hcd(hcd);
return retval;
}
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 9e81c26313f9..1045f846fbe2 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -15,6 +15,7 @@
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/acpi.h>
+#include "pci-quirks.h"
#define UHCI_USBLEGSUP 0xc0 /* legacy support */
diff --git a/drivers/usb/host/pci-quirks.h b/drivers/usb/host/pci-quirks.h
new file mode 100644
index 000000000000..1564edfff6fe
--- /dev/null
+++ b/drivers/usb/host/pci-quirks.h
@@ -0,0 +1,7 @@
+#ifndef __LINUX_USB_PCI_QUIRKS_H
+#define __LINUX_USB_PCI_QUIRKS_H
+
+void uhci_reset_hc(struct pci_dev *pdev, unsigned long base);
+int uhci_check_and_reset_hc(struct pci_dev *pdev, unsigned long base);
+
+#endif /* __LINUX_USB_PCI_QUIRKS_H */
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index 4edb8330c440..c0c4db78b590 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -50,6 +50,7 @@
#include "../core/hcd.h"
#include "uhci-hcd.h"
+#include "pci-quirks.h"
/*
* Version Information
@@ -100,9 +101,6 @@ static void uhci_get_current_frame_number(struct uhci_hcd *uhci);
#include "uhci-q.c"
#include "uhci-hub.c"
-extern void uhci_reset_hc(struct pci_dev *pdev, unsigned long base);
-extern int uhci_check_and_reset_hc(struct pci_dev *pdev, unsigned long base);
-
/*
* Finish up a host controller reset and update the recorded state.
*/
@@ -117,8 +115,7 @@ static void finish_reset(struct uhci_hcd *uhci)
for (port = 0; port < uhci->rh_numports; ++port)
outw(0, uhci->io_addr + USBPORTSC1 + (port * 2));
- uhci->port_c_suspend = uhci->suspended_ports =
- uhci->resuming_ports = 0;
+ uhci->port_c_suspend = uhci->resuming_ports = 0;
uhci->rh_state = UHCI_RH_RESET;
uhci->is_stopped = UHCI_IS_STOPPED;
uhci_to_hcd(uhci)->state = HC_STATE_HALT;
diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h
index 4a69c7eb09bd..d5c8f4d92823 100644
--- a/drivers/usb/host/uhci-hcd.h
+++ b/drivers/usb/host/uhci-hcd.h
@@ -415,7 +415,6 @@ struct uhci_hcd {
/* Support for port suspend/resume/reset */
unsigned long port_c_suspend; /* Bit-arrays of ports */
- unsigned long suspended_ports;
unsigned long resuming_ports;
unsigned long ports_timeout; /* Time to stop signalling */
diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c
index 152971d16769..c8451d9578f1 100644
--- a/drivers/usb/host/uhci-hub.c
+++ b/drivers/usb/host/uhci-hub.c
@@ -85,11 +85,10 @@ static void uhci_finish_suspend(struct uhci_hcd *uhci, int port,
{
int status;
- if (test_bit(port, &uhci->suspended_ports)) {
+ if (inw(port_addr) & (USBPORTSC_SUSP | USBPORTSC_RD)) {
CLR_RH_PORTSTAT(USBPORTSC_SUSP | USBPORTSC_RD);
- clear_bit(port, &uhci->suspended_ports);
- clear_bit(port, &uhci->resuming_ports);
- set_bit(port, &uhci->port_c_suspend);
+ if (test_bit(port, &uhci->resuming_ports))
+ set_bit(port, &uhci->port_c_suspend);
/* The controller won't actually turn off the RD bit until
* it has had a chance to send a low-speed EOP sequence,
@@ -97,6 +96,7 @@ static void uhci_finish_suspend(struct uhci_hcd *uhci, int port,
* slightly longer for good luck. */
udelay(4);
}
+ clear_bit(port, &uhci->resuming_ports);
}
/* Wait for the UHCI controller in HP's iLO2 server management chip.
@@ -265,8 +265,6 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
wPortChange |= USB_PORT_STAT_C_SUSPEND;
lstatus |= 1;
}
- if (test_bit(port, &uhci->suspended_ports))
- lstatus |= 2;
if (test_bit(port, &uhci->resuming_ports))
lstatus |= 4;
@@ -309,7 +307,6 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
switch (wValue) {
case USB_PORT_FEAT_SUSPEND:
- set_bit(port, &uhci->suspended_ports);
SET_RH_PORTSTAT(USBPORTSC_SUSP);
OK(0);
case USB_PORT_FEAT_RESET:
@@ -343,8 +340,11 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
CLR_RH_PORTSTAT(USBPORTSC_PEC);
OK(0);
case USB_PORT_FEAT_SUSPEND:
- if (test_bit(port, &uhci->suspended_ports) &&
- !test_and_set_bit(port,
+ if (!(inw(port_addr) & USBPORTSC_SUSP)) {
+
+ /* Make certain the port isn't suspended */
+ uhci_finish_suspend(uhci, port, port_addr);
+ } else if (!test_and_set_bit(port,
&uhci->resuming_ports)) {
SET_RH_PORTSTAT(USBPORTSC_RD);
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