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-rw-r--r--drivers/usb/host/ehci-atmel.c1
-rw-r--r--drivers/usb/host/ehci-dbg.c9
-rw-r--r--drivers/usb/host/ehci-fsl.c7
-rw-r--r--drivers/usb/host/ehci-hcd.c12
-rw-r--r--drivers/usb/host/ehci-hub.c31
-rw-r--r--drivers/usb/host/ehci-omap.c39
-rw-r--r--drivers/usb/host/ehci-pci.c8
-rw-r--r--drivers/usb/host/ehci-tegra.c3
-rw-r--r--drivers/usb/host/ehci.h2
-rw-r--r--drivers/usb/host/ohci-at91.c175
-rw-r--r--drivers/usb/host/pci-quirks.c10
-rw-r--r--drivers/usb/host/uhci-hub.c5
-rw-r--r--drivers/usb/host/xhci-dbg.c2
-rw-r--r--drivers/usb/host/xhci-ext-caps.h5
-rw-r--r--drivers/usb/host/xhci-mem.c9
-rw-r--r--drivers/usb/host/xhci-pci.c4
-rw-r--r--drivers/usb/host/xhci-ring.c6
-rw-r--r--drivers/usb/host/xhci.c12
-rw-r--r--drivers/usb/host/xhci.h4
19 files changed, 209 insertions, 135 deletions
diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
index 19f318ababa2..cf14c95a6700 100644
--- a/drivers/usb/host/ehci-atmel.c
+++ b/drivers/usb/host/ehci-atmel.c
@@ -13,6 +13,7 @@
#include <linux/clk.h>
#include <linux/platform_device.h>
+#include <linux/of.h>
#include <linux/of_platform.h>
/* interface and function clocks */
diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c
index fd9109d7eb0e..680e1a31fb87 100644
--- a/drivers/usb/host/ehci-dbg.c
+++ b/drivers/usb/host/ehci-dbg.c
@@ -352,7 +352,6 @@ static int debug_async_open(struct inode *, struct file *);
static int debug_periodic_open(struct inode *, struct file *);
static int debug_registers_open(struct inode *, struct file *);
static int debug_async_open(struct inode *, struct file *);
-static int debug_lpm_open(struct inode *, struct file *);
static ssize_t debug_lpm_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos);
static ssize_t debug_lpm_write(struct file *file, const char __user *buffer,
@@ -385,7 +384,7 @@ static const struct file_operations debug_registers_fops = {
};
static const struct file_operations debug_lpm_fops = {
.owner = THIS_MODULE,
- .open = debug_lpm_open,
+ .open = simple_open,
.read = debug_lpm_read,
.write = debug_lpm_write,
.release = debug_lpm_close,
@@ -970,12 +969,6 @@ static int debug_registers_open(struct inode *inode, struct file *file)
return file->private_data ? 0 : -ENOMEM;
}
-static int debug_lpm_open(struct inode *inode, struct file *file)
-{
- file->private_data = inode->i_private;
- return 0;
-}
-
static int debug_lpm_close(struct inode *inode, struct file *file)
{
return 0;
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index 3e7345172e03..d0a84bd3f3eb 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -218,6 +218,9 @@ static void ehci_fsl_setup_phy(struct ehci_hcd *ehci,
u32 portsc;
struct usb_hcd *hcd = ehci_to_hcd(ehci);
void __iomem *non_ehci = hcd->regs;
+ struct fsl_usb2_platform_data *pdata;
+
+ pdata = hcd->self.controller->platform_data;
portsc = ehci_readl(ehci, &ehci->regs->port_status[port_offset]);
portsc &= ~(PORT_PTS_MSK | PORT_PTS_PTW);
@@ -234,7 +237,9 @@ static void ehci_fsl_setup_phy(struct ehci_hcd *ehci,
/* fall through */
case FSL_USB2_PHY_UTMI:
/* enable UTMI PHY */
- setbits32(non_ehci + FSL_SOC_USB_CTRL, CTRL_UTMI_PHY_EN);
+ if (pdata->have_sysif_regs)
+ setbits32(non_ehci + FSL_SOC_USB_CTRL,
+ CTRL_UTMI_PHY_EN);
portsc |= PORT_PTS_UTMI;
break;
case FSL_USB2_PHY_NONE:
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 057cdda7a489..4a3bc5b7a06f 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -347,6 +347,8 @@ static int ehci_reset (struct ehci_hcd *ehci)
if (ehci->debug)
dbgp_external_startup();
+ ehci->port_c_suspend = ehci->suspended_ports =
+ ehci->resuming_ports = 0;
return retval;
}
@@ -856,8 +858,13 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd)
goto dead;
}
+ /*
+ * We don't use STS_FLR, but some controllers don't like it to
+ * remain on, so mask it out along with the other status bits.
+ */
+ masked_status = status & (INTR_MASK | STS_FLR);
+
/* Shared IRQ? */
- masked_status = status & INTR_MASK;
if (!masked_status || unlikely(ehci->rh_state == EHCI_RH_HALTED)) {
spin_unlock(&ehci->lock);
return IRQ_NONE;
@@ -908,7 +915,7 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd)
pcd_status = status;
/* resume root hub? */
- if (!(cmd & CMD_RUN))
+ if (ehci->rh_state == EHCI_RH_SUSPENDED)
usb_hcd_resume_root_hub(hcd);
/* get per-port change detect bits */
@@ -939,6 +946,7 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd)
* like usb_port_resume() does.
*/
ehci->reset_done[i] = jiffies + msecs_to_jiffies(25);
+ set_bit(i, &ehci->resuming_ports);
ehci_dbg (ehci, "port %d remote wakeup\n", i + 1);
mod_timer(&hcd->rh_timer, ehci->reset_done[i]);
}
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index 256fbd42e48c..38fe07623152 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -223,15 +223,10 @@ static int ehci_bus_suspend (struct usb_hcd *hcd)
* remote wakeup, we must fail the suspend.
*/
if (hcd->self.root_hub->do_remote_wakeup) {
- port = HCS_N_PORTS(ehci->hcs_params);
- while (port--) {
- if (ehci->reset_done[port] != 0) {
- spin_unlock_irq(&ehci->lock);
- ehci_dbg(ehci, "suspend failed because "
- "port %d is resuming\n",
- port + 1);
- return -EBUSY;
- }
+ if (ehci->resuming_ports) {
+ spin_unlock_irq(&ehci->lock);
+ ehci_dbg(ehci, "suspend failed because a port is resuming\n");
+ return -EBUSY;
}
}
@@ -554,16 +549,12 @@ static int
ehci_hub_status_data (struct usb_hcd *hcd, char *buf)
{
struct ehci_hcd *ehci = hcd_to_ehci (hcd);
- u32 temp, status = 0;
+ u32 temp, status;
u32 mask;
int ports, i, retval = 1;
unsigned long flags;
u32 ppcd = 0;
- /* if !USB_SUSPEND, root hub timers won't get shut down ... */
- if (ehci->rh_state != EHCI_RH_RUNNING)
- return 0;
-
/* init status to no-changes */
buf [0] = 0;
ports = HCS_N_PORTS (ehci->hcs_params);
@@ -572,6 +563,11 @@ ehci_hub_status_data (struct usb_hcd *hcd, char *buf)
retval++;
}
+ /* Inform the core about resumes-in-progress by returning
+ * a non-zero value even if there are no status changes.
+ */
+ status = ehci->resuming_ports;
+
/* Some boards (mostly VIA?) report bogus overcurrent indications,
* causing massive log spam unless we completely ignore them. It
* may be relevant that VIA VT8235 controllers, where PORT_POWER is
@@ -846,6 +842,7 @@ static int ehci_hub_control (
ehci_writel(ehci,
temp & ~(PORT_RWC_BITS | PORT_RESUME),
status_reg);
+ clear_bit(wIndex, &ehci->resuming_ports);
retval = handshake(ehci, status_reg,
PORT_RESUME, 0, 2000 /* 2msec */);
if (retval != 0) {
@@ -864,6 +861,7 @@ static int ehci_hub_control (
ehci->reset_done[wIndex])) {
status |= USB_PORT_STAT_C_RESET << 16;
ehci->reset_done [wIndex] = 0;
+ clear_bit(wIndex, &ehci->resuming_ports);
/* force reset to complete */
ehci_writel(ehci, temp & ~(PORT_RWC_BITS | PORT_RESET),
@@ -884,8 +882,10 @@ static int ehci_hub_control (
ehci_readl(ehci, status_reg));
}
- if (!(temp & (PORT_RESUME|PORT_RESET)))
+ if (!(temp & (PORT_RESUME|PORT_RESET))) {
ehci->reset_done[wIndex] = 0;
+ clear_bit(wIndex, &ehci->resuming_ports);
+ }
/* transfer dedicated ports to the companion hc */
if ((temp & PORT_CONNECT) &&
@@ -920,6 +920,7 @@ static int ehci_hub_control (
status |= USB_PORT_STAT_SUSPEND;
} else if (test_bit(wIndex, &ehci->suspended_ports)) {
clear_bit(wIndex, &ehci->suspended_ports);
+ clear_bit(wIndex, &ehci->resuming_ports);
ehci->reset_done[wIndex] = 0;
if (temp & PORT_PE)
set_bit(wIndex, &ehci->port_c_suspend);
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
index bba9850f32f0..5c78f9e71466 100644
--- a/drivers/usb/host/ehci-omap.c
+++ b/drivers/usb/host/ehci-omap.c
@@ -42,6 +42,7 @@
#include <plat/usb.h>
#include <linux/regulator/consumer.h>
#include <linux/pm_runtime.h>
+#include <linux/gpio.h>
/* EHCI Register Set */
#define EHCI_INSNREG04 (0xA0)
@@ -191,6 +192,19 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
}
}
+ if (pdata->phy_reset) {
+ if (gpio_is_valid(pdata->reset_gpio_port[0]))
+ gpio_request_one(pdata->reset_gpio_port[0],
+ GPIOF_OUT_INIT_LOW, "USB1 PHY reset");
+
+ if (gpio_is_valid(pdata->reset_gpio_port[1]))
+ gpio_request_one(pdata->reset_gpio_port[1],
+ GPIOF_OUT_INIT_LOW, "USB2 PHY reset");
+
+ /* Hold the PHY in RESET for enough time till DIR is high */
+ udelay(10);
+ }
+
pm_runtime_enable(dev);
pm_runtime_get_sync(dev);
@@ -237,6 +251,19 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
/* root ports should always stay powered */
ehci_port_power(omap_ehci, 1);
+ if (pdata->phy_reset) {
+ /* Hold the PHY in RESET for enough time till
+ * PHY is settled and ready
+ */
+ udelay(10);
+
+ if (gpio_is_valid(pdata->reset_gpio_port[0]))
+ gpio_set_value(pdata->reset_gpio_port[0], 1);
+
+ if (gpio_is_valid(pdata->reset_gpio_port[1]))
+ gpio_set_value(pdata->reset_gpio_port[1], 1);
+ }
+
return 0;
err_add_hcd:
@@ -259,8 +286,9 @@ err_io:
*/
static int ehci_hcd_omap_remove(struct platform_device *pdev)
{
- struct device *dev = &pdev->dev;
- struct usb_hcd *hcd = dev_get_drvdata(dev);
+ struct device *dev = &pdev->dev;
+ struct usb_hcd *hcd = dev_get_drvdata(dev);
+ struct ehci_hcd_omap_platform_data *pdata = dev->platform_data;
usb_remove_hcd(hcd);
disable_put_regulator(dev->platform_data);
@@ -269,6 +297,13 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev)
pm_runtime_put_sync(dev);
pm_runtime_disable(dev);
+ if (pdata->phy_reset) {
+ if (gpio_is_valid(pdata->reset_gpio_port[0]))
+ gpio_free(pdata->reset_gpio_port[0]);
+
+ if (gpio_is_valid(pdata->reset_gpio_port[1]))
+ gpio_free(pdata->reset_gpio_port[1]);
+ }
return 0;
}
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 01bb7241d6ef..fe8dc069164e 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -144,6 +144,14 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
hcd->has_tt = 1;
tdi_reset(ehci);
}
+ if (pdev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK) {
+ /* EHCI #1 or #2 on 6 Series/C200 Series chipset */
+ if (pdev->device == 0x1c26 || pdev->device == 0x1c2d) {
+ ehci_info(ehci, "broken D3 during system sleep on ASUS\n");
+ hcd->broken_pci_sleep = 1;
+ device_set_wakeup_capable(&pdev->dev, false);
+ }
+ }
break;
case PCI_VENDOR_ID_TDI:
if (pdev->device == PCI_DEVICE_ID_TDI_EHCI) {
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index 3de48a2d7955..86183366647f 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -224,6 +224,7 @@ static int tegra_ehci_hub_control(
temp &= ~(PORT_RWC_BITS | PORT_WAKE_BITS);
/* start resume signalling */
ehci_writel(ehci, temp | PORT_RESUME, status_reg);
+ set_bit(wIndex-1, &ehci->resuming_ports);
spin_unlock_irqrestore(&ehci->lock, flags);
msleep(20);
@@ -236,6 +237,7 @@ static int tegra_ehci_hub_control(
pr_err("%s: timeout waiting for SUSPEND\n", __func__);
ehci->reset_done[wIndex-1] = 0;
+ clear_bit(wIndex-1, &ehci->resuming_ports);
tegra->port_resuming = 1;
goto done;
@@ -729,7 +731,6 @@ static int tegra_ehci_probe(struct platform_device *pdev)
err = -ENODEV;
goto fail;
}
- set_irq_flags(irq, IRQF_VALID);
#ifdef CONFIG_USB_OTG_UTILS
if (pdata->operating_mode == TEGRA_USB_OTG) {
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index 8f9acbc96fde..2694ed6558d2 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -117,6 +117,8 @@ struct ehci_hcd { /* one per controller */
the change-suspend feature turned on */
unsigned long suspended_ports; /* which ports are
suspended */
+ unsigned long resuming_ports; /* which ports have
+ started to resume */
/* per-HC memory pools (could be per-bus, but ...) */
struct dma_pool *qh_pool; /* qh per active urb */
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index db8963f5fbce..13ebeca8e73e 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -27,6 +27,10 @@
#error "CONFIG_ARCH_AT91 must be defined."
#endif
+#define valid_port(index) ((index) >= 0 && (index) < AT91_MAX_USBH_PORTS)
+#define at91_for_each_port(index) \
+ for ((index) = 0; (index) < AT91_MAX_USBH_PORTS; (index)++)
+
/* interface and function clocks; sometimes also an AHB clock */
static struct clk *iclk, *fclk, *hclk;
static int clocked;
@@ -90,7 +94,7 @@ static void at91_stop_hc(struct platform_device *pdev)
/*-------------------------------------------------------------------------*/
-static void usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *);
+static void __devexit usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *);
/* configure so an HC device and id are always provided */
/* always called with process context; sleeping is OK */
@@ -104,7 +108,7 @@ static void usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *);
* then invokes the start() method for the HCD associated with it
* through the hotplug entry's driver_data.
*/
-static int usb_hcd_at91_probe(const struct hc_driver *driver,
+static int __devinit usb_hcd_at91_probe(const struct hc_driver *driver,
struct platform_device *pdev)
{
int retval;
@@ -199,7 +203,7 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver,
* context, "rmmod" or something similar.
*
*/
-static void usb_hcd_at91_remove(struct usb_hcd *hcd,
+static void __devexit usb_hcd_at91_remove(struct usb_hcd *hcd,
struct platform_device *pdev)
{
usb_remove_hcd(hcd);
@@ -240,26 +244,26 @@ ohci_at91_start (struct usb_hcd *hcd)
static void ohci_at91_usb_set_power(struct at91_usbh_data *pdata, int port, int enable)
{
- if (port < 0 || port >= 2)
+ if (!valid_port(port))
return;
if (!gpio_is_valid(pdata->vbus_pin[port]))
return;
gpio_set_value(pdata->vbus_pin[port],
- !pdata->vbus_pin_active_low[port] ^ enable);
+ pdata->vbus_pin_active_low[port] ^ enable);
}
static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port)
{
- if (port < 0 || port >= 2)
+ if (!valid_port(port))
return -EINVAL;
if (!gpio_is_valid(pdata->vbus_pin[port]))
return -EINVAL;
return gpio_get_value(pdata->vbus_pin[port]) ^
- !pdata->vbus_pin_active_low[port];
+ pdata->vbus_pin_active_low[port];
}
/*
@@ -271,9 +275,9 @@ static int ohci_at91_hub_status_data(struct usb_hcd *hcd, char *buf)
int length = ohci_hub_status_data(hcd, buf);
int port;
- for (port = 0; port < ARRAY_SIZE(pdata->overcurrent_pin); port++) {
+ at91_for_each_port(port) {
if (pdata->overcurrent_changed[port]) {
- if (! length)
+ if (!length)
length = 1;
buf[0] |= 1 << (port + 1);
}
@@ -297,11 +301,17 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
"ohci_at91_hub_control(%p,0x%04x,0x%04x,0x%04x,%p,%04x)\n",
hcd, typeReq, wValue, wIndex, buf, wLength);
+ wIndex--;
+
switch (typeReq) {
case SetPortFeature:
if (wValue == USB_PORT_FEAT_POWER) {
dev_dbg(hcd->self.controller, "SetPortFeat: POWER\n");
- ohci_at91_usb_set_power(pdata, wIndex - 1, 1);
+ if (valid_port(wIndex)) {
+ ohci_at91_usb_set_power(pdata, wIndex, 1);
+ ret = 0;
+ }
+
goto out;
}
break;
@@ -312,9 +322,9 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
dev_dbg(hcd->self.controller,
"ClearPortFeature: C_OVER_CURRENT\n");
- if (wIndex == 1 || wIndex == 2) {
- pdata->overcurrent_changed[wIndex-1] = 0;
- pdata->overcurrent_status[wIndex-1] = 0;
+ if (valid_port(wIndex)) {
+ pdata->overcurrent_changed[wIndex] = 0;
+ pdata->overcurrent_status[wIndex] = 0;
}
goto out;
@@ -323,9 +333,8 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
dev_dbg(hcd->self.controller,
"ClearPortFeature: OVER_CURRENT\n");
- if (wIndex == 1 || wIndex == 2) {
- pdata->overcurrent_status[wIndex-1] = 0;
- }
+ if (valid_port(wIndex))
+ pdata->overcurrent_status[wIndex] = 0;
goto out;
@@ -333,15 +342,15 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
dev_dbg(hcd->self.controller,
"ClearPortFeature: POWER\n");
- if (wIndex == 1 || wIndex == 2) {
- ohci_at91_usb_set_power(pdata, wIndex - 1, 0);
+ if (valid_port(wIndex)) {
+ ohci_at91_usb_set_power(pdata, wIndex, 0);
return 0;
}
}
break;
}
- ret = ohci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength);
+ ret = ohci_hub_control(hcd, typeReq, wValue, wIndex + 1, buf, wLength);
if (ret)
goto out;
@@ -377,18 +386,15 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
dev_dbg(hcd->self.controller, "GetPortStatus(%d)\n", wIndex);
- if (wIndex == 1 || wIndex == 2) {
- if (! ohci_at91_usb_get_power(pdata, wIndex-1)) {
+ if (valid_port(wIndex)) {
+ if (!ohci_at91_usb_get_power(pdata, wIndex))
*data &= ~cpu_to_le32(RH_PS_PPS);
- }
- if (pdata->overcurrent_changed[wIndex-1]) {
+ if (pdata->overcurrent_changed[wIndex])
*data |= cpu_to_le32(RH_PS_OCIC);
- }
- if (pdata->overcurrent_status[wIndex-1]) {
+ if (pdata->overcurrent_status[wIndex])
*data |= cpu_to_le32(RH_PS_POCI);
- }
}
}
@@ -450,14 +456,14 @@ static irqreturn_t ohci_hcd_at91_overcurrent_irq(int irq, void *data)
/* From the GPIO notifying the over-current situation, find
* out the corresponding port */
- for (port = 0; port < ARRAY_SIZE(pdata->overcurrent_pin); port++) {
+ at91_for_each_port(port) {
if (gpio_to_irq(pdata->overcurrent_pin[port]) == irq) {
gpio = pdata->overcurrent_pin[port];
break;
}
}
- if (port == ARRAY_SIZE(pdata->overcurrent_pin)) {
+ if (port == AT91_MAX_USBH_PORTS) {
dev_err(& pdev->dev, "overcurrent interrupt from unknown GPIO\n");
return IRQ_HANDLED;
}
@@ -467,7 +473,7 @@ static irqreturn_t ohci_hcd_at91_overcurrent_irq(int irq, void *data)
/* When notified of an over-current situation, disable power
on the corresponding port, and mark this port in
over-current. */
- if (! val) {
+ if (!val) {
ohci_at91_usb_set_power(pdata, port, 0);
pdata->overcurrent_status[port] = 1;
pdata->overcurrent_changed[port] = 1;
@@ -492,7 +498,7 @@ static u64 at91_ohci_dma_mask = DMA_BIT_MASK(32);
static int __devinit ohci_at91_of_init(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
- int i, ret, gpio;
+ int i, gpio;
enum of_gpio_flags flags;
struct at91_usbh_data *pdata;
u32 ports;
@@ -514,48 +520,17 @@ static int __devinit ohci_at91_of_init(struct platform_device *pdev)
if (!of_property_read_u32(np, "num-ports", &ports))
pdata->ports = ports;
- for (i = 0; i < 2; i++) {
+ at91_for_each_port(i) {
gpio = of_get_named_gpio_flags(np, "atmel,vbus-gpio", i, &flags);
pdata->vbus_pin[i] = gpio;
if (!gpio_is_valid(gpio))
continue;
pdata->vbus_pin_active_low[i] = flags & OF_GPIO_ACTIVE_LOW;
- ret = gpio_request(gpio, "ohci_vbus");
- if (ret) {
- dev_warn(&pdev->dev, "can't request vbus gpio %d", gpio);
- continue;
- }
- ret = gpio_direction_output(gpio, !(flags & OF_GPIO_ACTIVE_LOW) ^ 1);
- if (ret)
- dev_warn(&pdev->dev, "can't put vbus gpio %d as output %d",
- !(flags & OF_GPIO_ACTIVE_LOW) ^ 1, gpio);
}
- for (i = 0; i < 2; i++) {
- gpio = of_get_named_gpio_flags(np, "atmel,oc-gpio", i, &flags);
- pdata->overcurrent_pin[i] = gpio;
- if (!gpio_is_valid(gpio))
- continue;
- ret = gpio_request(gpio, "ohci_overcurrent");
- if (ret) {
- dev_err(&pdev->dev, "can't request overcurrent gpio %d", gpio);
- continue;
- }
-
- ret = gpio_direction_input(gpio);
- if (ret) {
- dev_err(&pdev->dev, "can't configure overcurrent gpio %d as input", gpio);
- continue;
- }
-
- ret = request_irq(gpio_to_irq(gpio),
- ohci_hcd_at91_overcurrent_irq,
- IRQF_SHARED, "ohci_overcurrent", pdev);
- if (ret) {
- gpio_free(gpio);
- dev_warn(& pdev->dev, "cannot get GPIO IRQ for overcurrent\n");
- }
- }
+ at91_for_each_port(i)
+ pdata->overcurrent_pin[i] =
+ of_get_named_gpio_flags(np, "atmel,oc-gpio", i, &flags);
pdev->dev.platform_data = pdata;
@@ -570,39 +545,73 @@ static int __devinit ohci_at91_of_init(struct platform_device *pdev)
/*-------------------------------------------------------------------------*/
-static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
+static int __devinit ohci_hcd_at91_drv_probe(struct platform_device *pdev)
{
struct at91_usbh_data *pdata;
int i;
+ int gpio;
+ int ret;
- i = ohci_at91_of_init(pdev);
-
- if (i)
- return i;
+ ret = ohci_at91_of_init(pdev);
+ if (ret)
+ return ret;
pdata = pdev->dev.platform_data;
if (pdata) {
- for (i = 0; i < ARRAY_SIZE(pdata->vbus_pin); i++) {
+ at91_for_each_port(i) {
if (!gpio_is_valid(pdata->vbus_pin[i]))
continue;
- gpio_request(pdata->vbus_pin[i], "ohci_vbus");
+ gpio = pdata->vbus_pin[i];
+
+ ret = gpio_request(gpio, "ohci_vbus");
+ if (ret) {
+ dev_err(&pdev->dev,
+ "can't request vbus gpio %d\n", gpio);
+ continue;
+ }
+ ret = gpio_direction_output(gpio,
+ !pdata->vbus_pin_active_low[i]);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "can't put vbus gpio %d as output %d\n",
+ gpio, !pdata->vbus_pin_active_low[i]);
+ gpio_free(gpio);
+ continue;
+ }
+
ohci_at91_usb_set_power(pdata, i, 1);
}
- for (i = 0; i < ARRAY_SIZE(pdata->overcurrent_pin); i++) {
- int ret;
-
+ at91_for_each_port(i) {
if (!gpio_is_valid(pdata->overcurrent_pin[i]))
continue;
- gpio_request(pdata->overcurrent_pin[i], "ohci_overcurrent");
+ gpio = pdata->overcurrent_pin[i];
+
+ ret = gpio_request(gpio, "ohci_overcurrent");
+ if (ret) {
+ dev_err(&pdev->dev,
+ "can't request overcurrent gpio %d\n",
+ gpio);
+ continue;
+ }
+
+ ret = gpio_direction_input(gpio);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "can't configure overcurrent gpio %d as input\n",
+ gpio);
+ gpio_free(gpio);
+ continue;
+ }
- ret = request_irq(gpio_to_irq(pdata->overcurrent_pin[i]),
+ ret = request_irq(gpio_to_irq(gpio),
ohci_hcd_at91_overcurrent_irq,
IRQF_SHARED, "ohci_overcurrent", pdev);
if (ret) {
- gpio_free(pdata->overcurrent_pin[i]);
- dev_warn(& pdev->dev, "cannot get GPIO IRQ for overcurrent\n");
+ gpio_free(gpio);
+ dev_err(&pdev->dev,
+ "can't get gpio IRQ for overcurrent\n");
}
}
}
@@ -611,20 +620,20 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
return usb_hcd_at91_probe(&ohci_at91_hc_driver, pdev);
}
-static int ohci_hcd_at91_drv_remove(struct platform_device *pdev)
+static int __devexit ohci_hcd_at91_drv_remove(struct platform_device *pdev)
{
struct at91_usbh_data *pdata = pdev->dev.platform_data;
int i;
if (pdata) {
- for (i = 0; i < ARRAY_SIZE(pdata->vbus_pin); i++) {
+ at91_for_each_port(i) {
if (!gpio_is_valid(pdata->vbus_pin[i]))
continue;
ohci_at91_usb_set_power(pdata, i, 0);
gpio_free(pdata->vbus_pin[i]);
}
- for (i = 0; i < ARRAY_SIZE(pdata->overcurrent_pin); i++) {
+ at91_for_each_port(i) {
if (!gpio_is_valid(pdata->overcurrent_pin[i]))
continue;
free_irq(gpio_to_irq(pdata->overcurrent_pin[i]), pdev);
@@ -687,7 +696,7 @@ MODULE_ALIAS("platform:at91_ohci");
static struct platform_driver ohci_hcd_at91_driver = {
.probe = ohci_hcd_at91_drv_probe,
- .remove = ohci_hcd_at91_drv_remove,
+ .remove = __devexit_p(ohci_hcd_at91_drv_remove),
.shutdown = usb_hcd_platform_shutdown,
.suspend = ohci_hcd_at91_drv_suspend,
.resume = ohci_hcd_at91_drv_resume,
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 11de5f1be981..32dada8c8b4f 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -825,9 +825,13 @@ static void __devinit quirk_usb_handoff_xhci(struct pci_dev *pdev)
}
}
- /* Disable any BIOS SMIs */
- writel(XHCI_LEGACY_DISABLE_SMI,
- base + ext_cap_offset + XHCI_LEGACY_CONTROL_OFFSET);
+ val = readl(base + ext_cap_offset + XHCI_LEGACY_CONTROL_OFFSET);
+ /* Mask off (turn off) any enabled SMIs */
+ val &= XHCI_LEGACY_DISABLE_SMI;
+ /* Mask all SMI events bits, RW1C */
+ val |= XHCI_LEGACY_SMI_EVENTS;
+ /* Disable any BIOS SMIs and clear all SMI events*/
+ writel(val, base + ext_cap_offset + XHCI_LEGACY_CONTROL_OFFSET);
if (usb_is_intel_switchable_xhci(pdev))
usb_enable_xhci_ports(pdev);
diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c
index 045cde4cbc3d..768d54295a20 100644
--- a/drivers/usb/host/uhci-hub.c
+++ b/drivers/usb/host/uhci-hub.c
@@ -196,11 +196,12 @@ static int uhci_hub_status_data(struct usb_hcd *hcd, char *buf)
status = get_hub_status_data(uhci, buf);
switch (uhci->rh_state) {
- case UHCI_RH_SUSPENDING:
case UHCI_RH_SUSPENDED:
/* if port change, ask to be resumed */
- if (status || uhci->resuming_ports)
+ if (status || uhci->resuming_ports) {
+ status = 1;
usb_hcd_resume_root_hub(hcd);
+ }
break;
case UHCI_RH_AUTO_STOPPED:
diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c
index e9b0f043455d..4b436f5a4171 100644
--- a/drivers/usb/host/xhci-dbg.c
+++ b/drivers/usb/host/xhci-dbg.c
@@ -119,7 +119,7 @@ static void xhci_print_command_reg(struct xhci_hcd *xhci)
xhci_dbg(xhci, " Event Interrupts %s\n",
(temp & CMD_EIE) ? "enabled " : "disabled");
xhci_dbg(xhci, " Host System Error Interrupts %s\n",
- (temp & CMD_EIE) ? "enabled " : "disabled");
+ (temp & CMD_HSEIE) ? "enabled " : "disabled");
xhci_dbg(xhci, " HC has %sfinished light reset\n",
(temp & CMD_LRESET) ? "not " : "");
}
diff --git a/drivers/usb/host/xhci-ext-caps.h b/drivers/usb/host/xhci-ext-caps.h
index c7f33123d4c0..377f4242dabb 100644
--- a/drivers/usb/host/xhci-ext-caps.h
+++ b/drivers/usb/host/xhci-ext-caps.h
@@ -62,8 +62,9 @@
/* USB Legacy Support Control and Status Register - section 7.1.2 */
/* Add this offset, plus the value of xECP in HCCPARAMS to the base address */
#define XHCI_LEGACY_CONTROL_OFFSET (0x04)
-/* bits 1:2, 5:12, and 17:19 need to be preserved; bits 21:28 should be zero */
-#define XHCI_LEGACY_DISABLE_SMI ((0x3 << 1) + (0xff << 5) + (0x7 << 17))
+/* bits 1:3, 5:12, and 17:19 need to be preserved; bits 21:28 should be zero */
+#define XHCI_LEGACY_DISABLE_SMI ((0x7 << 1) + (0xff << 5) + (0x7 << 17))
+#define XHCI_LEGACY_SMI_EVENTS (0x7 << 29)
/* USB 2.0 xHCI 0.96 L1C capability - section 7.2.2.1.3.2 */
#define XHCI_L1C (1 << 16)
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index cae4c6f2845a..68eaa908ac8e 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1796,11 +1796,6 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
int i;
/* Free the Event Ring Segment Table and the actual Event Ring */
- if (xhci->ir_set) {
- xhci_writel(xhci, 0, &xhci->ir_set->erst_size);
- xhci_write_64(xhci, 0, &xhci->ir_set->erst_base);
- xhci_write_64(xhci, 0, &xhci->ir_set->erst_dequeue);
- }
size = sizeof(struct xhci_erst_entry)*(xhci->erst.num_entries);
if (xhci->erst.entries)
dma_free_coherent(&pdev->dev, size,
@@ -1812,7 +1807,6 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
xhci->event_ring = NULL;
xhci_dbg(xhci, "Freed event ring\n");
- xhci_write_64(xhci, 0, &xhci->op_regs->cmd_ring);
if (xhci->cmd_ring)
xhci_ring_free(xhci, xhci->cmd_ring);
xhci->cmd_ring = NULL;
@@ -1841,7 +1835,6 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
xhci->medium_streams_pool = NULL;
xhci_dbg(xhci, "Freed medium stream array pool\n");
- xhci_write_64(xhci, 0, &xhci->op_regs->dcbaa_ptr);
if (xhci->dcbaa)
dma_free_coherent(&pdev->dev, sizeof(*xhci->dcbaa),
xhci->dcbaa, xhci->dcbaa->dma);
@@ -2459,6 +2452,8 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
fail:
xhci_warn(xhci, "Couldn't initialize memory\n");
+ xhci_halt(xhci);
+ xhci_reset(xhci);
xhci_mem_cleanup(xhci);
return -ENOMEM;
}
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index ef98b38626fb..7a856a767e77 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -95,6 +95,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
xhci->quirks |= XHCI_RESET_ON_RESUME;
xhci_dbg(xhci, "QUIRK: Resetting on resume\n");
}
+ if (pdev->vendor == PCI_VENDOR_ID_VIA)
+ xhci->quirks |= XHCI_RESET_ON_RESUME;
}
/* called during probe() after chip reset completes */
@@ -326,7 +328,7 @@ int __init xhci_register_pci(void)
return pci_register_driver(&xhci_pci_driver);
}
-void __exit xhci_unregister_pci(void)
+void xhci_unregister_pci(void)
{
pci_unregister_driver(&xhci_pci_driver);
}
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 6bd9d53062eb..3d9422f16a20 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -2417,7 +2417,7 @@ hw_died:
u32 irq_pending;
/* Acknowledge the PCI interrupt */
irq_pending = xhci_readl(xhci, &xhci->ir_set->irq_pending);
- irq_pending |= 0x3;
+ irq_pending |= IMAN_IP;
xhci_writel(xhci, irq_pending, &xhci->ir_set->irq_pending);
}
@@ -2734,7 +2734,7 @@ int xhci_queue_intr_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
urb->dev->speed == USB_SPEED_FULL)
urb->interval /= 8;
}
- return xhci_queue_bulk_tx(xhci, GFP_ATOMIC, urb, slot_id, ep_index);
+ return xhci_queue_bulk_tx(xhci, mem_flags, urb, slot_id, ep_index);
}
/*
@@ -3514,7 +3514,7 @@ int xhci_queue_isoc_tx_prepare(struct xhci_hcd *xhci, gfp_t mem_flags,
}
ep_ring->num_trbs_free_temp = ep_ring->num_trbs_free;
- return xhci_queue_isoc_tx(xhci, GFP_ATOMIC, urb, slot_id, ep_index);
+ return xhci_queue_isoc_tx(xhci, mem_flags, urb, slot_id, ep_index);
}
/**** Command Ring Operations ****/
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index e1963d4a430f..36641a7f2371 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -106,6 +106,9 @@ int xhci_halt(struct xhci_hcd *xhci)
STS_HALT, STS_HALT, XHCI_MAX_HALT_USEC);
if (!ret)
xhci->xhc_state |= XHCI_STATE_HALTED;
+ else
+ xhci_warn(xhci, "Host not halted after %u microseconds.\n",
+ XHCI_MAX_HALT_USEC);
return ret;
}
@@ -664,11 +667,11 @@ static void xhci_save_registers(struct xhci_hcd *xhci)
xhci->s3.dev_nt = xhci_readl(xhci, &xhci->op_regs->dev_notification);
xhci->s3.dcbaa_ptr = xhci_read_64(xhci, &xhci->op_regs->dcbaa_ptr);
xhci->s3.config_reg = xhci_readl(xhci, &xhci->op_regs->config_reg);
- xhci->s3.irq_pending = xhci_readl(xhci, &xhci->ir_set->irq_pending);
- xhci->s3.irq_control = xhci_readl(xhci, &xhci->ir_set->irq_control);
xhci->s3.erst_size = xhci_readl(xhci, &xhci->ir_set->erst_size);
xhci->s3.erst_base = xhci_read_64(xhci, &xhci->ir_set->erst_base);
xhci->s3.erst_dequeue = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue);
+ xhci->s3.irq_pending = xhci_readl(xhci, &xhci->ir_set->irq_pending);
+ xhci->s3.irq_control = xhci_readl(xhci, &xhci->ir_set->irq_control);
}
static void xhci_restore_registers(struct xhci_hcd *xhci)
@@ -677,10 +680,11 @@ static void xhci_restore_registers(struct xhci_hcd *xhci)
xhci_writel(xhci, xhci->s3.dev_nt, &xhci->op_regs->dev_notification);
xhci_write_64(xhci, xhci->s3.dcbaa_ptr, &xhci->op_regs->dcbaa_ptr);
xhci_writel(xhci, xhci->s3.config_reg, &xhci->op_regs->config_reg);
- xhci_writel(xhci, xhci->s3.irq_pending, &xhci->ir_set->irq_pending);
- xhci_writel(xhci, xhci->s3.irq_control, &xhci->ir_set->irq_control);
xhci_writel(xhci, xhci->s3.erst_size, &xhci->ir_set->erst_size);
xhci_write_64(xhci, xhci->s3.erst_base, &xhci->ir_set->erst_base);
+ xhci_write_64(xhci, xhci->s3.erst_dequeue, &xhci->ir_set->erst_dequeue);
+ xhci_writel(xhci, xhci->s3.irq_pending, &xhci->ir_set->irq_pending);
+ xhci_writel(xhci, xhci->s3.irq_control, &xhci->ir_set->irq_control);
}
static void xhci_set_cmd_ring_deq(struct xhci_hcd *xhci)
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 91074fdab3eb..3d69c4b2b542 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -205,6 +205,10 @@ struct xhci_op_regs {
#define CMD_PM_INDEX (1 << 11)
/* bits 12:31 are reserved (and should be preserved on writes). */
+/* IMAN - Interrupt Management Register */
+#define IMAN_IP (1 << 1)
+#define IMAN_IE (1 << 0)
+
/* USBSTS - USB status - status bitmasks */
/* HC not running - set to 1 when run/stop bit is cleared. */
#define STS_HALT XHCI_STS_HALT
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.