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Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6

Browse source 
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
  USB: musb: MAINTAINERS: Fix my mail address
  USB: serial/mos*: prevent reading uninitialized stack memory
  USB: otg: twl4030: fix phy initialization(v1)
  USB: EHCI: Disable langwell/penwell LPM capability
  usb: musb_debugfs: don't use the struct file private_data field with seq_files
This commit is contained in:
Linus Torvalds 2010-09-20 16:44:40 -07:00
commit 0c4ab3453a
6 changed files with 68 additions and 34 deletions
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4
MAINTAINERS
View file

@ -3942,7 +3942,7 @@ F: drivers/char/isicom.c
F: include/linux/isicom.h
MUSB MULTIPOINT HIGH SPEED DUAL-ROLE CONTROLLER
M: Felipe Balbi <felipe.balbi@nokia.com>
M: Felipe Balbi <balbi@ti.com>
L: linux-usb@vger.kernel.org
T: git git://gitorious.org/usb/usb.git
S: Maintained
@ -4240,7 +4240,7 @@ S: Maintained
F: drivers/char/hw_random/omap-rng.c
OMAP USB SUPPORT
M: Felipe Balbi <felipe.balbi@nokia.com>
M: Felipe Balbi <balbi@ti.com>
M: David Brownell <dbrownell@users.sourceforge.net>
L: linux-usb@vger.kernel.org
L: linux-omap@vger.kernel.org

5
drivers/usb/host/ehci-pci.c
View file

@ -119,6 +119,11 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
ehci->broken_periodic = 1;
ehci_info(ehci, "using broken periodic workaround\n");
}
if (pdev->device == 0x0806 || pdev->device == 0x0811
|| pdev->device == 0x0829) {
ehci_info(ehci, "disable lpm for langwell/penwell\n");
ehci->has_lpm = 0;
}
break;
case PCI_VENDOR_ID_TDI:
if (pdev->device == PCI_DEVICE_ID_TDI_EHCI) {

5
drivers/usb/musb/musb_debugfs.c
View file

@ -195,15 +195,14 @@ static const struct file_operations musb_regdump_fops = {
static int musb_test_mode_open(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return single_open(file, musb_test_mode_show, inode->i_private);
}
static ssize_t musb_test_mode_write(struct file *file,
const char __user *ubuf, size_t count, loff_t *ppos)
{
struct musb *musb = file->private_data;
struct seq_file *s = file->private_data;
struct musb *musb = s->private;
u8 test = 0;
char buf[18];

82
drivers/usb/otg/twl4030-usb.c
View file

@ -347,11 +347,20 @@ static void twl4030_i2c_access(struct twl4030_usb *twl, int on)
}
}
static void __twl4030_phy_power(struct twl4030_usb *twl, int on)
{
u8 pwr = twl4030_usb_read(twl, PHY_PWR_CTRL);
if (on)
pwr &= ~PHY_PWR_PHYPWD;
else
pwr |= PHY_PWR_PHYPWD;
WARN_ON(twl4030_usb_write_verify(twl, PHY_PWR_CTRL, pwr) < 0);
}
static void twl4030_phy_power(struct twl4030_usb *twl, int on)
{
u8 pwr;
pwr = twl4030_usb_read(twl, PHY_PWR_CTRL);
if (on) {
regulator_enable(twl->usb3v1);
regulator_enable(twl->usb1v8);
@ -365,15 +374,13 @@ static void twl4030_phy_power(struct twl4030_usb *twl, int on)
twl_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0,
VUSB_DEDICATED2);
regulator_enable(twl->usb1v5);
pwr &= ~PHY_PWR_PHYPWD;
WARN_ON(twl4030_usb_write_verify(twl, PHY_PWR_CTRL, pwr) < 0);
__twl4030_phy_power(twl, 1);
twl4030_usb_write(twl, PHY_CLK_CTRL,
twl4030_usb_read(twl, PHY_CLK_CTRL) |
(PHY_CLK_CTRL_CLOCKGATING_EN |
PHY_CLK_CTRL_CLK32K_EN));
} else {
pwr |= PHY_PWR_PHYPWD;
WARN_ON(twl4030_usb_write_verify(twl, PHY_PWR_CTRL, pwr) < 0);
} else {
__twl4030_phy_power(twl, 0);
regulator_disable(twl->usb1v5);
regulator_disable(twl->usb1v8);
regulator_disable(twl->usb3v1);
@ -387,19 +394,25 @@ static void twl4030_phy_suspend(struct twl4030_usb *twl, int controller_off)
twl4030_phy_power(twl, 0);
twl->asleep = 1;
dev_dbg(twl->dev, "%s\n", __func__);
}
static void __twl4030_phy_resume(struct twl4030_usb *twl)
{
twl4030_phy_power(twl, 1);
twl4030_i2c_access(twl, 1);
twl4030_usb_set_mode(twl, twl->usb_mode);
if (twl->usb_mode == T2_USB_MODE_ULPI)
twl4030_i2c_access(twl, 0);
}
static void twl4030_phy_resume(struct twl4030_usb *twl)
{
if (!twl->asleep)
return;
twl4030_phy_power(twl, 1);
twl4030_i2c_access(twl, 1);
twl4030_usb_set_mode(twl, twl->usb_mode);
if (twl->usb_mode == T2_USB_MODE_ULPI)
twl4030_i2c_access(twl, 0);
__twl4030_phy_resume(twl);
twl->asleep = 0;
dev_dbg(twl->dev, "%s\n", __func__);
}
static int twl4030_usb_ldo_init(struct twl4030_usb *twl)
@ -408,8 +421,8 @@ static int twl4030_usb_ldo_init(struct twl4030_usb *twl)
twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0xC0, PROTECT_KEY);
twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0x0C, PROTECT_KEY);
/* put VUSB3V1 LDO in active state */
twl_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0, VUSB_DEDICATED2);
/* Keep VUSB3V1 LDO in sleep state until VBUS/ID change detected*/
/*twl_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0, VUSB_DEDICATED2);*/
/* input to VUSB3V1 LDO is from VBAT, not VBUS */
twl_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x14, VUSB_DEDICATED1);
@ -502,6 +515,26 @@ static irqreturn_t twl4030_usb_irq(int irq, void *_twl)
return IRQ_HANDLED;
}
static void twl4030_usb_phy_init(struct twl4030_usb *twl)
{
int status;
status = twl4030_usb_linkstat(twl);
if (status >= 0) {
if (status == USB_EVENT_NONE) {
__twl4030_phy_power(twl, 0);
twl->asleep = 1;
} else {
__twl4030_phy_resume(twl);
twl->asleep = 0;
}
blocking_notifier_call_chain(&twl->otg.notifier, status,
twl->otg.gadget);
}
sysfs_notify(&twl->dev->kobj, NULL, "vbus");
}
static int twl4030_set_suspend(struct otg_transceiver *x, int suspend)
{
struct twl4030_usb *twl = xceiv_to_twl(x);
@ -550,7 +583,6 @@ static int __devinit twl4030_usb_probe(struct platform_device *pdev)
struct twl4030_usb_data *pdata = pdev->dev.platform_data;
struct twl4030_usb *twl;
int status, err;
u8 pwr;
if (!pdata) {
dev_dbg(&pdev->dev, "platform_data not available\n");
@ -569,10 +601,7 @@ static int __devinit twl4030_usb_probe(struct platform_device *pdev)
twl->otg.set_peripheral = twl4030_set_peripheral;
twl->otg.set_suspend = twl4030_set_suspend;
twl->usb_mode = pdata->usb_mode;
pwr = twl4030_usb_read(twl, PHY_PWR_CTRL);
twl->asleep = (pwr & PHY_PWR_PHYPWD);
twl->asleep = 1;
/* init spinlock for workqueue */
spin_lock_init(&twl->lock);
@ -610,15 +639,10 @@ static int __devinit twl4030_usb_probe(struct platform_device *pdev)
return status;
}
/* The IRQ handler just handles changes from the previous states
* of the ID and VBUS pins ... in probe() we must initialize that
* previous state. The easy way: fake an IRQ.
*
* REVISIT: a real IRQ might have happened already, if PREEMPT is
* enabled. Else the IRQ may not yet be configured or enabled,
* because of scheduling delays.
/* Power down phy or make it work according to
* current link state.
*/
twl4030_usb_irq(twl->irq, twl);
twl4030_usb_phy_init(twl);
dev_info(&pdev->dev, "Initialized TWL4030 USB module\n");
return 0;

3
drivers/usb/serial/mos7720.c
View file

@ -2024,6 +2024,9 @@ static int mos7720_ioctl(struct tty_struct *tty, struct file *file,
case TIOCGICOUNT:
cnow = mos7720_port->icount;
memset(&icount, 0, sizeof(struct serial_icounter_struct));
icount.cts = cnow.cts;
icount.dsr = cnow.dsr;
icount.rng = cnow.rng;

3
drivers/usb/serial/mos7840.c
View file

@ -2285,6 +2285,9 @@ static int mos7840_ioctl(struct tty_struct *tty, struct file *file,
case TIOCGICOUNT:
cnow = mos7840_port->icount;
smp_rmb();
memset(&icount, 0, sizeof(struct serial_icounter_struct));
icount.cts = cnow.cts;
icount.dsr = cnow.dsr;
icount.rng = cnow.rng;