usb: gadget: fusb300_udc: add FUSB300_EPSET0_STL_CLR for clearing EP0 stall

The final version of fusb300 controller adds EPSET0_STL_CLR
for clearing EP0 stall and also removes EPSET0_EPn_TX0BYTE.

fusb300_udc driver is tested on FARADAY platform a369 with
FUSB300 FPGA v1.8

Signed-off-by: Yuan-Hsin Chen <yhchen@faraday-tech.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/drivers/usb/gadget/fusb300_udc.c b/drivers/usb/gadget/fusb300_udc.c
index d05355389dd6..db0d2917987a 100644
--- a/drivers/usb/gadget/fusb300_udc.c
+++ b/drivers/usb/gadget/fusb300_udc.c
@@ -394,7 +394,7 @@ static void fusb300_clear_epnstall(struct fusb300 *fusb300, u8 ep)
 
         if (reg & FUSB300_EPSET0_STL) {
                 printk(KERN_DEBUG "EP%d stall... Clear!!\n", ep);
-                reg &= ~FUSB300_EPSET0_STL;
+                reg |= FUSB300_EPSET0_STL_CLR;
                 iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET0(ep));
         }
 }
diff --git a/drivers/usb/gadget/fusb300_udc.h b/drivers/usb/gadget/fusb300_udc.h
index 6ba444ae8dd5..ae811d8d38b4 100644
--- a/drivers/usb/gadget/fusb300_udc.h
+++ b/drivers/usb/gadget/fusb300_udc.h
@@ -111,8 +111,8 @@
 /*
  * * EPn Setting 0 (EPn_SET0, offset = 020H+(n-1)*30H, n=1~15 )
  * */
+#define FUSB300_EPSET0_STL_CLR          (1 << 3)
 #define FUSB300_EPSET0_CLRSEQNUM        (1 << 2)
-#define FUSB300_EPSET0_EPn_TX0BYTE      (1 << 1)
 #define FUSB300_EPSET0_STL              (1 << 0)
 
 /*