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-rw-r--r--drivers/usb/host/xhci-mtk-sch.c20
1 files changed, 13 insertions, 7 deletions
diff --git a/drivers/usb/host/xhci-mtk-sch.c b/drivers/usb/host/xhci-mtk-sch.c
index f9b4d27ce449..46cbf5d54f4f 100644
--- a/drivers/usb/host/xhci-mtk-sch.c
+++ b/drivers/usb/host/xhci-mtk-sch.c
@@ -459,16 +459,17 @@ static int check_fs_bus_bw(struct mu3h_sch_ep_info *sch_ep, int offset)
u32 num_esit, tmp;
int base;
int i, j;
+ u8 uframes = DIV_ROUND_UP(sch_ep->maxpkt, FS_PAYLOAD_MAX);
num_esit = XHCI_MTK_MAX_ESIT / sch_ep->esit;
+
+ if (sch_ep->ep_type == INT_IN_EP || sch_ep->ep_type == ISOC_IN_EP)
+ offset++;
+
for (i = 0; i < num_esit; i++) {
base = offset + i * sch_ep->esit;
- /*
- * Compared with hs bus, no matter what ep type,
- * the hub will always delay one uframe to send data
- */
- for (j = 0; j < sch_ep->cs_count; j++) {
+ for (j = 0; j < uframes; j++) {
tmp = tt->fs_bus_bw[base + j] + sch_ep->bw_cost_per_microframe;
if (tmp > FS_PAYLOAD_MAX)
return -ESCH_BW_OVERFLOW;
@@ -546,6 +547,8 @@ static void update_sch_tt(struct mu3h_sch_ep_info *sch_ep, bool used)
u32 base, num_esit;
int bw_updated;
int i, j;
+ int offset = sch_ep->offset;
+ u8 uframes = DIV_ROUND_UP(sch_ep->maxpkt, FS_PAYLOAD_MAX);
num_esit = XHCI_MTK_MAX_ESIT / sch_ep->esit;
@@ -554,10 +557,13 @@ static void update_sch_tt(struct mu3h_sch_ep_info *sch_ep, bool used)
else
bw_updated = -sch_ep->bw_cost_per_microframe;
+ if (sch_ep->ep_type == INT_IN_EP || sch_ep->ep_type == ISOC_IN_EP)
+ offset++;
+
for (i = 0; i < num_esit; i++) {
- base = sch_ep->offset + i * sch_ep->esit;
+ base = offset + i * sch_ep->esit;
- for (j = 0; j < sch_ep->cs_count; j++)
+ for (j = 0; j < uframes; j++)
tt->fs_bus_bw[base + j] += bw_updated;
}