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usb: fixes for v3.16-rc4

Browse source 
A few more fixes for this RC cycle. There's a revert of a previous patch
 which ended up being the wrong version, so we reverted that commit and
 applied a better fix.
 
 CPPI41 got a race condition fix which was found by Thomas Gleixner.
 
 The MSM PHY driver got a runtime pm usage fix so that it wouldn't
 kill the PHY while it was still being used.
 
 We also have a fix for a panic caused when removing musb_am335x driver.
 
 Other than that, a few other minor fixes.
 
 Signed-of-by: Felipe Balbi <[email protected]>
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Merge tag 'fixes-for-v3.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

usb: fixes for v3.16-rc4

A few more fixes for this RC cycle. There's a revert of a previous patch
which ended up being the wrong version, so we reverted that commit and
applied a better fix.

CPPI41 got a race condition fix which was found by Thomas Gleixner.

The MSM PHY driver got a runtime pm usage fix so that it wouldn't
kill the PHY while it was still being used.

We also have a fix for a panic caused when removing musb_am335x driver.

Other than that, a few other minor fixes.

Signed-of-by: Felipe Balbi <[email protected]>
This commit is contained in:
Greg Kroah-Hartman 2014-06-30 21:15:15 -07:00
commit ba1ba3a4ed
8 changed files with 30 additions and 52 deletions
Download patch file Download diff file Expand all files Collapse all files

5
drivers/usb/gadget/gr_udc.c
View file

@ -1532,8 +1532,9 @@ static int gr_ep_enable(struct usb_ep *_ep,
"%s mode: multiple trans./microframe not valid\n",
(mode == 2 ? "Bulk" : "Control"));
return -EINVAL;
} else if (nt == 0x11) {
dev_err(dev->dev, "Invalid value for trans./microframe\n");
} else if (nt == 0x3) {
dev_err(dev->dev,
"Invalid value 0x3 for additional trans./microframe\n");
return -EINVAL;
} else if ((nt + 1) * max > buffer_size) {
dev_err(dev->dev, "Hw buffer size %d < max payload %d * %d\n",

23
drivers/usb/musb/musb_am335x.c
View file

@ -19,21 +19,6 @@ err:
return ret;
}
static int of_remove_populated_child(struct device *dev, void *d)
{
struct platform_device *pdev = to_platform_device(dev);
of_device_unregister(pdev);
return 0;
}
static int am335x_child_remove(struct platform_device *pdev)
{
device_for_each_child(&pdev->dev, NULL, of_remove_populated_child);
pm_runtime_disable(&pdev->dev);
return 0;
}
static const struct of_device_id am335x_child_of_match[] = {
{ .compatible = "ti,am33xx-usb" },
{ },
@ -42,13 +27,17 @@ MODULE_DEVICE_TABLE(of, am335x_child_of_match);
static struct platform_driver am335x_child_driver = {
.probe = am335x_child_probe,
.remove = am335x_child_remove,
.driver = {
.name = "am335x-usb-childs",
.of_match_table = am335x_child_of_match,
},
};
module_platform_driver(am335x_child_driver);
static int __init am335x_child_init(void)
{
return platform_driver_register(&am335x_child_driver);
}
module_init(am335x_child_init);
MODULE_DESCRIPTION("AM33xx child devices");
MODULE_LICENSE("GPL v2");

2
drivers/usb/musb/musb_cppi41.c
View file

@ -318,7 +318,7 @@ static void cppi41_dma_callback(void *private_data)
}
list_add_tail(&cppi41_channel->tx_check,
&controller->early_tx_list);
if (!hrtimer_active(&controller->early_tx)) {
if (!hrtimer_is_queued(&controller->early_tx)) {
hrtimer_start_range_ns(&controller->early_tx,
ktime_set(0, 140 * NSEC_PER_USEC),
40 * NSEC_PER_USEC,

9
drivers/usb/musb/musb_dsps.c
View file

@ -494,10 +494,9 @@ static int dsps_musb_set_mode(struct musb *musb, u8 mode)
struct dsps_glue *glue = dev_get_drvdata(dev->parent);
const struct dsps_musb_wrapper *wrp = glue->wrp;
void __iomem *ctrl_base = musb->ctrl_base;
void __iomem *base = musb->mregs;
u32 reg;
reg = dsps_readl(base, wrp->mode);
reg = dsps_readl(ctrl_base, wrp->mode);
switch (mode) {
case MUSB_HOST:
@ -510,7 +509,7 @@ static int dsps_musb_set_mode(struct musb *musb, u8 mode)
*/
reg |= (1 << wrp->iddig_mux);
dsps_writel(base, wrp->mode, reg);
dsps_writel(ctrl_base, wrp->mode, reg);
dsps_writel(ctrl_base, wrp->phy_utmi, 0x02);
break;
case MUSB_PERIPHERAL:
@ -523,10 +522,10 @@ static int dsps_musb_set_mode(struct musb *musb, u8 mode)
*/
reg |= (1 << wrp->iddig_mux);
dsps_writel(base, wrp->mode, reg);
dsps_writel(ctrl_base, wrp->mode, reg);
break;
case MUSB_OTG:
dsps_writel(base, wrp->phy_utmi, 0x02);
dsps_writel(ctrl_base, wrp->phy_utmi, 0x02);
break;
default:
dev_err(glue->dev, "unsupported mode %d\n", mode);

4
drivers/usb/phy/phy-msm-usb.c
View file

@ -1229,7 +1229,9 @@ static void msm_otg_sm_work(struct work_struct *w)
motg->chg_state = USB_CHG_STATE_UNDEFINED;
motg->chg_type = USB_INVALID_CHARGER;
}
pm_runtime_put_sync(otg->phy->dev);
if (otg->phy->state == OTG_STATE_B_IDLE)
pm_runtime_put_sync(otg->phy->dev);
break;
case OTG_STATE_B_PERIPHERAL:
dev_dbg(otg->phy->dev, "OTG_STATE_B_PERIPHERAL state\n");