i2c: designware: Don't use internal ___constant_swab32

jhnikula · Wolfram Sang · commit 83b2cb48cbc5 · 2018-07-03T23:05:27.000+02:00
It looks ___constant_swab32 is an internal byte swap detail. Switch to
swap32() and include header file for it explicitly. Now it comes
implicitly via linux/i2c.h include.

Suggested-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Reviewed-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Signed-off-by: Jarkko Nikula &lt;jarkko.nikula@linux.intel.com&gt;
Signed-off-by: Wolfram Sang &lt;wsa@the-dreams.de&gt;
diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c
@@ -31,6 +31,7 @@
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/pm_runtime.h>
+#include <linux/swab.h>
 
 #include "i2c-designware-core.h"
 
@@ -113,7 +114,7 @@ int i2c_dw_set_reg_access(struct dw_i2c_dev *dev)
 	reg = dw_readl(dev, DW_IC_COMP_TYPE);
 	i2c_dw_release_lock(dev);
 
-	if (reg == ___constant_swab32(DW_IC_COMP_TYPE_VALUE)) {
+	if (reg == swab32(DW_IC_COMP_TYPE_VALUE)) {
 		/* Configure register endianess access */
 		dev->flags |= ACCESS_SWAP;
 	} else if (reg == (DW_IC_COMP_TYPE_VALUE & 0x0000ffff)) {
