提交 08d9c74d 编写于 作者: G Greg Kroah-Hartman

Merge branch 'chipidea-stable' into usb-next

These chipidea stable patches are needed for other chipidea patches to be
applied properly.
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
上级 1f2235b8 db89960e
master alk-4.19.24 alk-4.19.30 alk-4.19.34 alk-4.19.36 alk-4.19.43 alk-4.19.48 alk-4.19.57 ck-4.19.67 ck-4.19.81 ck-4.19.91 github/fork/deepanshu1422/fix-typo-in-comment github/fork/haosdent/fix-typo linux-next v4.19.91 v4.19.90 v4.19.89 v4.19.88 v4.19.87 v4.19.86 v4.19.85 v4.19.84 v4.19.83 v4.19.82 v4.19.81 v4.19.80 v4.19.79 v4.19.78 v4.19.77 v4.19.76 v4.19.75 v4.19.74 v4.19.73 v4.19.72 v4.19.71 v4.19.70 v4.19.69 v4.19.68 v4.19.67 v4.19.66 v4.19.65 v4.19.64 v4.19.63 v4.19.62 v4.19.61 v4.19.60 v4.19.59 v4.19.58 v4.19.57 v4.19.56 v4.19.55 v4.19.54 v4.19.53 v4.19.52 v4.19.51 v4.19.50 v4.19.49 v4.19.48 v4.19.47 v4.19.46 v4.19.45 v4.19.44 v4.19.43 v4.19.42 v4.19.41 v4.19.40 v4.19.39 v4.19.38 v4.19.37 v4.19.36 v4.19.35 v4.19.34 v4.19.33 v4.19.32 v4.19.31 v4.19.30 v4.19.29 v4.19.28 v4.19.27 v4.19.26 v4.19.25 v4.19.24 v4.19.23 v4.19.22 v4.19.21 v4.19.20 v4.19.19 v4.19.18 v4.19.17 v4.19.16 v4.19.15 v4.19.14 v4.19.13 v4.19.12 v4.19.11 v4.19.10 v4.19.9 v4.19.8 v4.19.7 v4.19.6 v4.19.5 v4.19.4 v4.19.3 v4.19.2 v4.19.1 v4.19 v4.19-rc8 v4.19-rc7 v4.19-rc6 v4.19-rc5 v4.19-rc4 v4.19-rc3 v4.19-rc2 v4.19-rc1 ck-release-21 ck-release-20 ck-release-19.2 ck-release-19.1 ck-release-19 ck-release-18 ck-release-17.2 ck-release-17.1 ck-release-17 ck-release-16 ck-release-15.1 ck-release-15 ck-release-14 ck-release-13.2 ck-release-13 ck-release-12 ck-release-11 ck-release-10 ck-release-9 ck-release-7 alk-release-15 alk-release-14 alk-release-13.2 alk-release-13 alk-release-12 alk-release-11 alk-release-10 alk-release-9 alk-release-7
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......@@ -78,8 +78,7 @@ static inline int ep_to_bit(struct ci13xxx *ci, int n)
}
/**
* hw_device_state: enables/disables interrupts & starts/stops device (execute
* without interruption)
* hw_device_state: enables/disables interrupts (execute without interruption)
* @dma: 0 => disable, !0 => enable and set dma engine
*
* This function returns an error code
......@@ -91,9 +90,7 @@ static int hw_device_state(struct ci13xxx *ci, u32 dma)
/* interrupt, error, port change, reset, sleep/suspend */
hw_write(ci, OP_USBINTR, ~0,
USBi_UI|USBi_UEI|USBi_PCI|USBi_URI|USBi_SLI);
hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS);
} else {
hw_write(ci, OP_USBCMD, USBCMD_RS, 0);
hw_write(ci, OP_USBINTR, ~0, 0);
}
return 0;
......@@ -774,10 +771,7 @@ __acquires(mEp->lock)
{
struct ci13xxx_req *mReq, *mReqTemp;
struct ci13xxx_ep *mEpTemp = mEp;
int uninitialized_var(retval);
if (list_empty(&mEp->qh.queue))
return -EINVAL;
int retval = 0;
list_for_each_entry_safe(mReq, mReqTemp, &mEp->qh.queue,
queue) {
......@@ -1420,6 +1414,21 @@ static int ci13xxx_vbus_draw(struct usb_gadget *_gadget, unsigned mA)
return -ENOTSUPP;
}
/* Change Data+ pullup status
* this func is used by usb_gadget_connect/disconnet
*/
static int ci13xxx_pullup(struct usb_gadget *_gadget, int is_on)
{
struct ci13xxx *ci = container_of(_gadget, struct ci13xxx, gadget);
if (is_on)
hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS);
else
hw_write(ci, OP_USBCMD, USBCMD_RS, 0);
return 0;
}
static int ci13xxx_start(struct usb_gadget *gadget,
struct usb_gadget_driver *driver);
static int ci13xxx_stop(struct usb_gadget *gadget,
......@@ -1432,6 +1441,7 @@ static int ci13xxx_stop(struct usb_gadget *gadget,
static const struct usb_gadget_ops usb_gadget_ops = {
.vbus_session = ci13xxx_vbus_session,
.wakeup = ci13xxx_wakeup,
.pullup = ci13xxx_pullup,
.vbus_draw = ci13xxx_vbus_draw,
.udc_start = ci13xxx_start,
.udc_stop = ci13xxx_stop,
......@@ -1455,7 +1465,12 @@ static int init_eps(struct ci13xxx *ci)
mEp->ep.name = mEp->name;
mEp->ep.ops = &usb_ep_ops;
mEp->ep.maxpacket = CTRL_PAYLOAD_MAX;
/*
* for ep0: maxP defined in desc, for other
* eps, maxP is set by epautoconfig() called
* by gadget layer
*/
mEp->ep.maxpacket = (unsigned short)~0;
INIT_LIST_HEAD(&mEp->qh.queue);
mEp->qh.ptr = dma_pool_alloc(ci->qh_pool, GFP_KERNEL,
......@@ -1475,6 +1490,7 @@ static int init_eps(struct ci13xxx *ci)
else
ci->ep0in = mEp;
mEp->ep.maxpacket = CTRL_PAYLOAD_MAX;
continue;
}
......@@ -1484,6 +1500,17 @@ static int init_eps(struct ci13xxx *ci)
return retval;
}
static void destroy_eps(struct ci13xxx *ci)
{
int i;
for (i = 0; i < ci->hw_ep_max; i++) {
struct ci13xxx_ep *mEp = &ci->ci13xxx_ep[i];
dma_pool_free(ci->qh_pool, mEp->qh.ptr, mEp->qh.dma);
}
}
/**
* ci13xxx_start: register a gadget driver
* @gadget: our gadget
......@@ -1691,7 +1718,7 @@ static int udc_start(struct ci13xxx *ci)
if (ci->platdata->flags & CI13XXX_REQUIRE_TRANSCEIVER) {
if (ci->transceiver == NULL) {
retval = -ENODEV;
goto free_pools;
goto destroy_eps;
}
}
......@@ -1729,7 +1756,7 @@ static int udc_start(struct ci13xxx *ci)
remove_trans:
if (!IS_ERR_OR_NULL(ci->transceiver)) {
otg_set_peripheral(ci->transceiver->otg, &ci->gadget);
otg_set_peripheral(ci->transceiver->otg, NULL);
if (ci->global_phy)
usb_put_phy(ci->transceiver);
}
......@@ -1742,6 +1769,8 @@ static int udc_start(struct ci13xxx *ci)
put_transceiver:
if (!IS_ERR_OR_NULL(ci->transceiver) && ci->global_phy)
usb_put_phy(ci->transceiver);
destroy_eps:
destroy_eps(ci);
free_pools:
dma_pool_destroy(ci->td_pool);
free_qh_pool:
......@@ -1756,18 +1785,12 @@ static int udc_start(struct ci13xxx *ci)
*/
static void udc_stop(struct ci13xxx *ci)
{
int i;
if (ci == NULL)
return;
usb_del_gadget_udc(&ci->gadget);
for (i = 0; i < ci->hw_ep_max; i++) {
struct ci13xxx_ep *mEp = &ci->ci13xxx_ep[i];
dma_pool_free(ci->qh_pool, mEp->qh.ptr, mEp->qh.dma);
}
destroy_eps(ci);
dma_pool_destroy(ci->td_pool);
dma_pool_destroy(ci->qh_pool);
......
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