summaryrefslogtreecommitdiff
path: root/drivers/usb
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/dwc3/core.c14
-rw-r--r--drivers/usb/dwc3/core.h22
-rw-r--r--drivers/usb/dwc3/dwc3-pci.c4
-rw-r--r--drivers/usb/dwc3/ep0.c2
-rw-r--r--drivers/usb/dwc3/gadget.c51
5 files changed, 46 insertions, 47 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index a1576f00ead7..33d986832013 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -167,11 +167,11 @@ static void dwc3_free_one_event_buffer(struct dwc3 *dwc,
}
/**
- * dwc3_alloc_one_event_buffer - Allocated one event buffer structure
+ * dwc3_alloc_one_event_buffer - Allocates one event buffer structure
* @dwc: Pointer to our controller context structure
* @length: size of the event buffer
*
- * Returns a pointer to the allocated event buffer structure on succes
+ * Returns a pointer to the allocated event buffer structure on success
* otherwise ERR_PTR(errno).
*/
static struct dwc3_event_buffer *__devinit
@@ -215,10 +215,10 @@ static void dwc3_free_event_buffers(struct dwc3 *dwc)
/**
* dwc3_alloc_event_buffers - Allocates @num event buffers of size @length
- * @dwc: Pointer to out controller context structure
+ * @dwc: pointer to our controller context structure
* @length: size of event buffer
*
- * Returns 0 on success otherwise negative errno. In error the case, dwc
+ * Returns 0 on success otherwise negative errno. In the error case, dwc
* may contain some buffers allocated but not all which were requested.
*/
static int __devinit dwc3_alloc_event_buffers(struct dwc3 *dwc, unsigned length)
@@ -251,7 +251,7 @@ static int __devinit dwc3_alloc_event_buffers(struct dwc3 *dwc, unsigned length)
/**
* dwc3_event_buffers_setup - setup our allocated event buffers
- * @dwc: Pointer to out controller context structure
+ * @dwc: pointer to our controller context structure
*
* Returns 0 on success otherwise negative errno.
*/
@@ -363,9 +363,9 @@ static int __devinit dwc3_core_init(struct dwc3 *dwc)
/*
* WORKAROUND: DWC3 revisions <1.90a have a bug
- * when The device fails to connect at SuperSpeed
+ * where the device can fail to connect at SuperSpeed
* and falls back to high-speed mode which causes
- * the device to enter in a Connect/Disconnect loop
+ * the device to enter a Connect/Disconnect loop
*/
if (dwc->revision < DWC3_REVISION_190A)
reg |= DWC3_GCTL_U2RSTECN;
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 696b20a8b1fa..81d1c0aeb6c5 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -145,22 +145,22 @@
/* Bit fields */
/* Global Configuration Register */
-#define DWC3_GCTL_PWRDNSCALE(n) (n << 19)
+#define DWC3_GCTL_PWRDNSCALE(n) ((n) << 19)
#define DWC3_GCTL_U2RSTECN (1 << 16)
-#define DWC3_GCTL_RAMCLKSEL(x) ((x & DWC3_GCTL_CLK_MASK) << 6)
+#define DWC3_GCTL_RAMCLKSEL(x) (((x) & DWC3_GCTL_CLK_MASK) << 6)
#define DWC3_GCTL_CLK_BUS (0)
#define DWC3_GCTL_CLK_PIPE (1)
#define DWC3_GCTL_CLK_PIPEHALF (2)
#define DWC3_GCTL_CLK_MASK (3)
#define DWC3_GCTL_PRTCAP(n) (((n) & (3 << 12)) >> 12)
-#define DWC3_GCTL_PRTCAPDIR(n) (n << 12)
+#define DWC3_GCTL_PRTCAPDIR(n) ((n) << 12)
#define DWC3_GCTL_PRTCAP_HOST 1
#define DWC3_GCTL_PRTCAP_DEVICE 2
#define DWC3_GCTL_PRTCAP_OTG 3
#define DWC3_GCTL_CORESOFTRESET (1 << 11)
-#define DWC3_GCTL_SCALEDOWN(n) (n << 4)
+#define DWC3_GCTL_SCALEDOWN(n) ((n) << 4)
#define DWC3_GCTL_DISSCRAMBLE (1 << 3)
#define DWC3_GCTL_DSBLCLKGTNG (1 << 0)
@@ -177,7 +177,7 @@
#define DWC3_GTXFIFOSIZ_TXFSTADDR(n) ((n) & 0xffff0000)
/* Global HWPARAMS1 Register */
-#define DWC3_GHWPARAMS1_EN_PWROPT(n) ((n & (3 << 24)) >> 24)
+#define DWC3_GHWPARAMS1_EN_PWROPT(n) (((n) & (3 << 24)) >> 24)
#define DWC3_GHWPARAMS1_EN_PWROPT_NO 0
#define DWC3_GHWPARAMS1_EN_PWROPT_CLK 1
@@ -273,10 +273,10 @@
/* Device Endpoint Command Register */
#define DWC3_DEPCMD_PARAM_SHIFT 16
-#define DWC3_DEPCMD_PARAM(x) (x << DWC3_DEPCMD_PARAM_SHIFT)
-#define DWC3_DEPCMD_GET_RSC_IDX(x) ((x >> DWC3_DEPCMD_PARAM_SHIFT) & 0x7f)
+#define DWC3_DEPCMD_PARAM(x) ((x) << DWC3_DEPCMD_PARAM_SHIFT)
+#define DWC3_DEPCMD_GET_RSC_IDX(x) (((x) >> DWC3_DEPCMD_PARAM_SHIFT) & 0x7f)
#define DWC3_DEPCMD_STATUS_MASK (0x0f << 12)
-#define DWC3_DEPCMD_STATUS(x) ((x & DWC3_DEPCMD_STATUS_MASK) >> 12)
+#define DWC3_DEPCMD_STATUS(x) (((x) & DWC3_DEPCMD_STATUS_MASK) >> 12)
#define DWC3_DEPCMD_HIPRI_FORCERM (1 << 11)
#define DWC3_DEPCMD_CMDACT (1 << 10)
#define DWC3_DEPCMD_CMDIOC (1 << 8)
@@ -683,9 +683,9 @@ struct dwc3_event_depevt {
#define DEPEVT_STATUS_TRANSFER_ACTIVE (1 << 3)
/* Within XferComplete */
-#define DEPEVT_STATUS_BUSERR (1 << 0)
-#define DEPEVT_STATUS_SHORT (1 << 1)
-#define DEPEVT_STATUS_IOC (1 << 2)
+#define DEPEVT_STATUS_BUSERR (1 << 0)
+#define DEPEVT_STATUS_SHORT (1 << 1)
+#define DEPEVT_STATUS_IOC (1 << 2)
#define DEPEVT_STATUS_LST (1 << 3)
/* Stream event only */
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 05d3a3efbc15..74bac06652c4 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -69,7 +69,7 @@ static int __devinit dwc3_pci_probe(struct pci_dev *pci,
return -ENOMEM;
}
- glue->dev = dev;
+ glue->dev = dev;
ret = pci_enable_device(pci);
if (ret) {
@@ -114,7 +114,7 @@ static int __devinit dwc3_pci_probe(struct pci_dev *pci,
dwc3->dev.dma_mask = dev->dma_mask;
dwc3->dev.dma_parms = dev->dma_parms;
dwc3->dev.parent = dev;
- glue->dwc3 = dwc3;
+ glue->dwc3 = dwc3;
ret = platform_device_add(dwc3);
if (ret) {
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 5a067090f27e..4fa2c9873eab 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -374,7 +374,7 @@ static int dwc3_ep0_handle_feature(struct dwc3 *dwc,
case USB_RECIP_ENDPOINT:
switch (wValue) {
case USB_ENDPOINT_HALT:
- dep = dwc3_wIndex_to_dep(dwc, wIndex);
+ dep = dwc3_wIndex_to_dep(dwc, wIndex);
if (!dep)
return -EINVAL;
ret = __dwc3_gadget_ep_set_halt(dep, set);
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index eeba2227c28f..d121e73d89ae 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -548,7 +548,7 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep,
memset(&trb_link, 0, sizeof(trb_link));
- /* Link TRB for ISOC. The HWO but is never reset */
+ /* Link TRB for ISOC. The HWO bit is never reset */
trb_st_hw = &dep->trb_pool[0];
trb_link = &dep->trb_pool[DWC3_TRB_NUM - 1];
@@ -818,9 +818,9 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep,
* @dep: endpoint for which requests are being prepared
* @starting: true if the endpoint is idle and no requests are queued.
*
- * The functions goes through the requests list and setups TRBs for the
- * transfers. The functions returns once there are not more TRBs available or
- * it run out of requests.
+ * The function goes through the requests list and sets up TRBs for the
+ * transfers. The function returns once there are no more TRBs available or
+ * it runs out of requests.
*/
static void dwc3_prepare_trbs(struct dwc3_ep *dep, bool starting)
{
@@ -834,8 +834,8 @@ static void dwc3_prepare_trbs(struct dwc3_ep *dep, bool starting)
trbs_left = (dep->busy_slot - dep->free_slot) & DWC3_TRB_MASK;
/*
- * if busy & slot are equal than it is either full or empty. If we are
- * starting to proceed requests then we are empty. Otherwise we ar
+ * If busy & slot are equal than it is either full or empty. If we are
+ * starting to process requests then we are empty. Otherwise we are
* full and don't do anything
*/
if (!trbs_left) {
@@ -846,7 +846,7 @@ static void dwc3_prepare_trbs(struct dwc3_ep *dep, bool starting)
* In case we start from scratch, we queue the ISOC requests
* starting from slot 1. This is done because we use ring
* buffer and have no LST bit to stop us. Instead, we place
- * IOC bit TRB_NUM/4. We try to avoid to having an interrupt
+ * IOC bit every TRB_NUM/4. We try to avoid having an interrupt
* after the first request so we start at slot 1 and have
* 7 requests proceed before we hit the first IOC.
* Other transfer types don't use the ring buffer and are
@@ -882,8 +882,8 @@ static void dwc3_prepare_trbs(struct dwc3_ep *dep, bool starting)
length = sg_dma_len(s);
dma = sg_dma_address(s);
- if (i == (request->num_mapped_sgs - 1)
- || sg_is_last(s)) {
+ if (i == (request->num_mapped_sgs - 1) ||
+ sg_is_last(s)) {
last_one = true;
chain = false;
}
@@ -951,8 +951,7 @@ static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep, u16 cmd_param,
dwc3_prepare_trbs(dep, start_new);
/*
- * req points to the first request where HWO changed
- * from 0 to 1
+ * req points to the first request where HWO changed from 0 to 1
*/
req = next_request(&dep->req_queued);
}
@@ -978,7 +977,7 @@ static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep, u16 cmd_param,
/*
* FIXME we need to iterate over the list of requests
* here and stop, unmap, free and del each of the linked
- * requests instead of we do now.
+ * requests instead of what we do now.
*/
dwc3_unmap_buffer_from_dma(req);
list_del(&req->list);
@@ -1011,7 +1010,7 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
* particular token from the Host side.
*
* This will also avoid Host cancelling URBs due to too
- * many NACKs.
+ * many NAKs.
*/
dwc3_map_buffer_to_dma(req);
list_add_tail(&req->list, &dep->request_list);
@@ -1034,10 +1033,10 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
start_trans = 1;
if (usb_endpoint_xfer_isoc(dep->desc) &&
- dep->flags & DWC3_EP_BUSY)
+ (dep->flags & DWC3_EP_BUSY))
start_trans = 0;
- ret = __dwc3_gadget_kick_transfer(dep, 0, start_trans);
+ ret = __dwc3_gadget_kick_transfer(dep, 0, start_trans);
if (ret && ret != -EBUSY) {
struct dwc3 *dwc = dep->dwc;
@@ -1291,10 +1290,10 @@ static int dwc3_gadget_wakeup(struct usb_gadget *g)
reg &= ~DWC3_DCTL_ULSTCHNGREQ_MASK;
dwc3_writel(dwc->regs, DWC3_DCTL, reg);
- /* pool until Link State change to ON */
+ /* poll until Link State changes to ON */
timeout = jiffies + msecs_to_jiffies(100);
- while (!(time_after(jiffies, timeout))) {
+ while (!time_after(jiffies, timeout)) {
reg = dwc3_readl(dwc->regs, DWC3_DSTS);
/* in HS, means ON */
@@ -1558,10 +1557,10 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep,
if ((trb->ctrl & DWC3_TRB_CTRL_HWO) && status != -ESHUTDOWN)
/*
* We continue despite the error. There is not much we
- * can do. If we don't clean in up we loop for ever. If
- * we skip the TRB than it gets overwritten reused after
- * a while since we use them in a ring buffer. a BUG()
- * would help. Lets hope that if this occures, someone
+ * can do. If we don't clean it up we loop forever. If
+ * we skip the TRB then it gets overwritten after a
+ * while since we use them in a ring buffer. A BUG()
+ * would help. Lets hope that if this occurs, someone
* fixes the root cause instead of looking away :)
*/
dev_err(dwc->dev, "%s's TRB (%p) still owned by HW\n",
@@ -1614,7 +1613,7 @@ static void dwc3_endpoint_transfer_complete(struct dwc3 *dwc,
if (event->status & DEPEVT_STATUS_BUSERR)
status = -ECONNRESET;
- clean_busy = dwc3_cleanup_done_reqs(dwc, dep, event, status);
+ clean_busy = dwc3_cleanup_done_reqs(dwc, dep, event, status);
if (clean_busy) {
dep->flags &= ~DWC3_EP_BUSY;
dep->res_trans_idx = 0;
@@ -1678,8 +1677,8 @@ static void dwc3_process_ep_cmd_complete(struct dwc3_ep *dep,
struct dwc3_event_depevt mod_ev = *event;
/*
- * We were asked to remove one requests. It is possible that this
- * request and a few other were started together and have the same
+ * We were asked to remove one request. It is possible that this
+ * request and a few others were started together and have the same
* transfer index. Since we stopped the complete endpoint we don't
* know how many requests were already completed (and not yet)
* reported and how could be done (later). We purge them all until
@@ -1688,7 +1687,7 @@ static void dwc3_process_ep_cmd_complete(struct dwc3_ep *dep,
mod_ev.status = DEPEVT_STATUS_LST;
dwc3_cleanup_done_reqs(dwc, dep, &mod_ev, -ESHUTDOWN);
dep->flags &= ~DWC3_EP_BUSY;
- /* pending requets are ignored and are queued on XferNotReady */
+ /* pending requests are ignored and are queued on XferNotReady */
}
static void dwc3_ep_cmd_compl(struct dwc3_ep *dep,
@@ -2285,7 +2284,7 @@ static irqreturn_t dwc3_interrupt(int irq, void *_dwc)
/**
* dwc3_gadget_init - Initializes gadget related registers
- * @dwc: Pointer to out controller context structure
+ * @dwc: pointer to our controller context structure
*
* Returns 0 on success otherwise negative errno.
*/
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 00:27:25 +0000