sysmo-bts
/
u-boot
9
0
Fork 0
Code Pull Requests Releases Activity

usb: dwc2: remove control_data_toggle[] 

The control data toggle resets to DATA1 at the start of the data phase
of every setup transaction. We don't need a global variable to store
the value; we can just store it on the stack.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
This commit is contained in:
Stephen Warren 2015-03-07 22:48:54 -07:00 committed by Marek Vasut
parent ee83755401
commit 282685e07e
1 changed files with 4 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/usb/host/dwc2.c
View File

@ -27,7 +27,6 @@ DEFINE_ALIGN_BUFFER(uint8_t, status_buffer, DWC2_STATUS_BUF_SIZE, 8);
#define MAX_DEVICE 16
#define MAX_ENDPOINT 16
static int bulk_data_toggle[MAX_DEVICE][MAX_ENDPOINT];
static int control_data_toggle[MAX_DEVICE][MAX_ENDPOINT];
static int root_hub_devnum;
@ -853,7 +852,6 @@ int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
int len, struct devrequest *setup)
{
int devnum = usb_pipedevice(pipe);
int ep = usb_pipeendpoint(pipe);
int pid, ret, act_len;
/* For CONTROL endpoint pid should start with DATA1 */
int status_direction;
@ -870,9 +868,9 @@ int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
return ret;
if (buffer) {
control_data_toggle[devnum][ep] = DWC2_HC_PID_DATA1;
ret = chunk_msg(dev, pipe, &control_data_toggle[devnum][ep],
usb_pipein(pipe), buffer, len);
pid = DWC2_HC_PID_DATA1;
ret = chunk_msg(dev, pipe, &pid, usb_pipein(pipe), buffer,
len);
if (ret)
return ret;
act_len = dev->act_len;
@ -933,10 +931,8 @@ int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
DWC2_HPRT0_PRTRST);
for (i = 0; i < MAX_DEVICE; i++) {
for (j = 0; j < MAX_ENDPOINT; j++) {
control_data_toggle[i][j] = DWC2_HC_PID_DATA1;
for (j = 0; j < MAX_ENDPOINT; j++)
bulk_data_toggle[i][j] = DWC2_HC_PID_DATA0;
}
}
return 0;