diff --git a/drivers/staging/sm750fb/ddk750_chip.c b/drivers/staging/sm750fb/ddk750_chip.c
index c8a8b3ffcc74..70d65d10b484 100644
--- a/drivers/staging/sm750fb/ddk750_chip.c
+++ b/drivers/staging/sm750fb/ddk750_chip.c
@@ -17,7 +17,7 @@ logical_chip_type_t getChipType(void)
 	char physicalRev;
 	logical_chip_type_t chip;
 
-	physicalID = devId750;//either 0x718 or 0x750
+	physicalID = devId750; /* either 0x718 or 0x750 */
 	physicalRev = revId750;
 
 	if (physicalID == 0x718)
@@ -256,7 +256,7 @@ int ddk750_initHw(initchip_param_t *pInitParam)
 
 	unsigned int ulReg;
 #if 0
-	//move the code to map regiter function.
+	/* move the code to map regiter function. */
 	if (getChipType() == SM718) {
 		/* turn on big endian bit*/
 		ulReg = PEEK32(0x74);
@@ -487,7 +487,6 @@ unsigned int calcPllValue(unsigned int request_orig, pll_value_t *pll)
 		}
 	}
 
-	//printk("Finally:  pll->n[%lu],m[%lu],od[%lu],pod[%lu]\n",pll->N,pll->M,pll->OD,pll->POD);
 	return ret;
 }
 
@@ -579,14 +578,9 @@ pll_value_t *pPLL           /* Structure to hold the value to be set in PLL */
 	}
 
     /* Restore input frequency from Khz to hz unit */
-//    pPLL->inputFreq *= 1000;
 	ulRequestClk *= 1000;
 	pPLL->inputFreq = DEFAULT_INPUT_CLOCK; /* Default reference clock */
 
-    /* Output debug information */
-	//DDKDEBUGPRINT((DISPLAY_LEVEL, "calcPllValue: Requested Frequency = %d\n", ulRequestClk));
-	//DDKDEBUGPRINT((DISPLAY_LEVEL, "calcPllValue: Input CLK = %dHz, M=%d, N=%d, OD=%d, POD=%d\n", pPLL->inputFreq, pPLL->M, pPLL->N, pPLL->OD, pPLL->POD));
-
     /* Return actual frequency that the PLL can set */
 	ret = calcPLL(pPLL);
 	return ret;
diff --git a/ret.ou b/ret.ou
new file mode 100644
index 000000000000..e69de29bb2d1