diff options
author | Vahram Aharonyan <vahrama@synopsys.com> | 2016-11-10 04:27:58 +0100 |
---|---|---|
committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-11-18 12:54:19 +0100 |
commit | 3a1ec35160c69af3d2a44b0cf4bd0dea1026cdd1 (patch) | |
tree | 9c2b033cf9828731f821894635dfa15fb56e8e98 /drivers/usb | |
parent | usb: dwc2: gadget: Add DMA descriptor chains for EP 0 (diff) | |
download | linux-3a1ec35160c69af3d2a44b0cf4bd0dea1026cdd1.tar.xz linux-3a1ec35160c69af3d2a44b0cf4bd0dea1026cdd1.zip |
usb: dwc2: host: Rename MAX_DMA_DESC_SIZE to HOST_DMA_NBYTES_LIMIT
Rename MAX_DMA_DESC_SIZE to HOST_DMA_NBYTES_LIMIT as it stores value of
host DMA descriptor transfer bytes' limit. Values are different in case
of gadget DMA descriptors.
Signed-off-by: Vahram Aharonyan <vahrama@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb')
-rw-r--r-- | drivers/usb/dwc2/hcd_ddma.c | 4 | ||||
-rw-r--r-- | drivers/usb/dwc2/hw.h | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/drivers/usb/dwc2/hcd_ddma.c b/drivers/usb/dwc2/hcd_ddma.c index 70851b99417f..cf0367768cb3 100644 --- a/drivers/usb/dwc2/hcd_ddma.c +++ b/drivers/usb/dwc2/hcd_ddma.c @@ -693,8 +693,8 @@ static void dwc2_fill_host_dma_desc(struct dwc2_hsotg *hsotg, struct dwc2_dma_desc *dma_desc = &qh->desc_list[n_desc]; int len = chan->xfer_len; - if (len > MAX_DMA_DESC_SIZE - (chan->max_packet - 1)) - len = MAX_DMA_DESC_SIZE - (chan->max_packet - 1); + if (len > HOST_DMA_NBYTES_LIMIT - (chan->max_packet - 1)) + len = HOST_DMA_NBYTES_LIMIT - (chan->max_packet - 1); if (chan->ep_is_in) { int num_packets; diff --git a/drivers/usb/dwc2/hw.h b/drivers/usb/dwc2/hw.h index 5fad5a1a1a29..0e5bfb38b2df 100644 --- a/drivers/usb/dwc2/hw.h +++ b/drivers/usb/dwc2/hw.h @@ -820,6 +820,7 @@ struct dwc2_dma_desc { #define HOST_DMA_ISOC_NBYTES_SHIFT 0 #define HOST_DMA_NBYTES_MASK (0x1ffff << 0) #define HOST_DMA_NBYTES_SHIFT 0 +#define HOST_DMA_NBYTES_LIMIT 131071 /* Device Mode DMA descriptor status quadlet */ @@ -856,7 +857,6 @@ struct dwc2_dma_desc { #define DEV_DMA_NBYTES_SHIFT 0 #define DEV_DMA_NBYTES_LIMIT 0xffff -#define MAX_DMA_DESC_SIZE 131071 #define MAX_DMA_DESC_NUM_GENERIC 64 #define MAX_DMA_DESC_NUM_HS_ISOC 256 |