diff options
| author | Felipe Balbi <balbi@ti.com> | 2012-05-04 12:58:14 +0300 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2012-05-04 12:58:14 +0300 |
| commit | 3ef35fafdc87b72851f7785dc5331a0f4eb1b3ce (patch) | |
| tree | 83664ecb128f24e2c8cad82797eaa0f7ee7f311e | |
| parent | f898ae09a043cf9c3c4be82c04e08fcf00fe82c1 (diff) | |
usb: dwc3: define DWC3_EP0_BOUNCE_SIZEdwc3-for-v3.5
to avoid sprinkling magic constants on the driver
we define a constant to be used when allocating
setup_buffer and ep0_bounce buffer.
Signed-off-by: Felipe Balbi <balbi@ti.com>
| -rw-r--r-- | drivers/usb/dwc3/core.h | 1 | ||||
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 13 |
2 files changed, 8 insertions, 6 deletions
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index ef28bd5680c5..fbd0c8e30c19 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -51,6 +51,7 @@ #include <linux/usb/gadget.h> /* Global constants */ +#define DWC3_EP0_BOUNCE_SIZE 512 #define DWC3_ENDPOINTS_NUM 32 #define DWC3_XHCI_RESOURCES_NUM 2 diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 31ffc5c27354..12844393bc3e 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2319,7 +2319,7 @@ int __devinit dwc3_gadget_init(struct dwc3 *dwc) goto err1; } - dwc->setup_buf = kzalloc(512, GFP_KERNEL); + dwc->setup_buf = kzalloc(DWC3_EP0_BOUNCE_SIZE, GFP_KERNEL); if (!dwc->setup_buf) { dev_err(dwc->dev, "failed to allocate setup buffer\n"); ret = -ENOMEM; @@ -2327,7 +2327,8 @@ int __devinit dwc3_gadget_init(struct dwc3 *dwc) } dwc->ep0_bounce = dma_alloc_coherent(dwc->dev, - 512, &dwc->ep0_bounce_addr, GFP_KERNEL); + DWC3_EP0_BOUNCE_SIZE, &dwc->ep0_bounce_addr, + GFP_KERNEL); if (!dwc->ep0_bounce) { dev_err(dwc->dev, "failed to allocate ep0 bounce buffer\n"); ret = -ENOMEM; @@ -2414,8 +2415,8 @@ err5: dwc3_gadget_free_endpoints(dwc); err4: - dma_free_coherent(dwc->dev, 512, dwc->ep0_bounce, - dwc->ep0_bounce_addr); + dma_free_coherent(dwc->dev, DWC3_EP0_BOUNCE_SIZE, + dwc->ep0_bounce, dwc->ep0_bounce_addr); err3: kfree(dwc->setup_buf); @@ -2444,8 +2445,8 @@ void dwc3_gadget_exit(struct dwc3 *dwc) dwc3_gadget_free_endpoints(dwc); - dma_free_coherent(dwc->dev, 512, dwc->ep0_bounce, - dwc->ep0_bounce_addr); + dma_free_coherent(dwc->dev, DWC3_EP0_BOUNCE_SIZE, + dwc->ep0_bounce, dwc->ep0_bounce_addr); kfree(dwc->setup_buf); |