usb: dwc3: Modify the dwc3_readl and dwc3_writel

Modify the dwc3_readl and dwc3_writel to calculate
the register offsets before invking the readl.
This patch is just a workaround to fix the issue
of raising an exception in the previous invokation
method.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/drivers/usb/dwc3/io.h b/drivers/usb/dwc3/io.h
index 5042a2419369416db4abe8b6dca2a7b66c0885f9..ddbfb68ce089920a3bddbad5839fc2ae7e0acbc9 100644 (file)
--- a/drivers/usb/dwc3/io.h
+++ b/drivers/usb/dwc3/io.h
@@ -31,7 +31,8 @@ static inline u32 dwc3_readl(void __iomem *base, u32 offset)
         * space, see dwc3_probe in core.c.
         * However, the offsets are given starting from xHCI address space.
         */
-       value = readl(base + offs);
+       offs += base;
+       value = readl(offs);
 
        return value;
 }
@@ -45,7 +46,8 @@ static inline void dwc3_writel(void __iomem *base, u32 offset, u32 value)
         * space, see dwc3_probe in core.c.
         * However, the offsets are given starting from xHCI address space.
         */
-       writel(value, base + offs);
+       offs += base;
+       writel(value, offs);
 }
 
 static inline void dwc3_flush_cache(int addr, int length)