usb: gadget: m66592-udc: add function for external controller

M66592 has the pin of WR0 and WR1. So, if one write-pin of CPU
connects to the pins, we have to change the setting of FIFOSEL
register in the controller. If we don't change the setting,
the controller cannot send the data of odd length.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/usb/m66592.h b/include/linux/usb/m66592.h
index cda9625e7df0..a4ba31ab2fed 100644
--- a/include/linux/usb/m66592.h
+++ b/include/linux/usb/m66592.h
@@ -38,6 +38,8 @@ struct m66592_platdata {
         /* (external controller only) one = 3.3V, zero = 1.5V */
         unsigned        vif:1;
 
+        /* (external controller only) set one = WR0_N shorted to WR1_N */
+        unsigned        wr0_shorted_to_wr1:1;
 };
 
 #endif /* __LINUX_USB_M66592_H */