USB: r8a66597-hcd: fix interrupt transfer interval

This driver ignored the value of bInterval and revised the problem
that performed interrupt transfer.

ASIX USB Ethernet adapter comes to work with this host controller
by applying this patch.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/usb/host/r8a66597.h b/drivers/usb/host/r8a66597.h
index 57388252b693..a01461017ad6 100644
--- a/drivers/usb/host/r8a66597.h
+++ b/drivers/usb/host/r8a66597.h
@@ -404,6 +404,7 @@
 #define make_devsel(addr)               (addr << 12)
 
 struct r8a66597_pipe_info {
+        unsigned long timer_interval;
         u16 pipenum;
         u16 address;    /* R8A66597 HCD usb address */
         u16 epnum;
@@ -478,9 +479,11 @@ struct r8a66597 {
 
         struct timer_list rh_timer;
         struct timer_list td_timer[R8A66597_MAX_NUM_PIPE];
+        struct timer_list interval_timer[R8A66597_MAX_NUM_PIPE];
 
         unsigned short address_map;
         unsigned short timeout_map;
+        unsigned short interval_map;
         unsigned char pipe_cnt[R8A66597_MAX_NUM_PIPE];
         unsigned char dma_map;