drm/amd/pm/powerplay/hwmgr/ppevvmath: Clean up errors in ppevvmath.h

Fix the following errors reported by checkpatch:

ERROR: return is not a function, parentheses are not required
ERROR: space required after that ',' (ctx:VxV)
ERROR: space required before the open parenthesis '('
ERROR: need consistent spacing around '-' (ctx:WxV)
Signed-off-by: Ran Sun <sunran001@208suo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppevvmath.h

@@ -166,7 +166,7 @@ static fInt fNaturalLog(fInt value)
 
 	error_term = fAdd(fNegativeOne, value);
 
-	return (fAdd(solution, error_term));
+	return fAdd(solution, error_term);
 }
 
 static fInt fDecodeLinearFuse(uint32_t fuse_value, fInt f_min, fInt f_range, uint32_t bitlength)
@@ -230,7 +230,7 @@ static fInt ConvertToFraction(int X) /*Add all range checking here. Is it possib
 static fInt fNegate(fInt X)
 {
 	fInt CONSTANT_NEGONE = ConvertToFraction(-1);
-	return (fMultiply(X, CONSTANT_NEGONE));
+	return fMultiply(X, CONSTANT_NEGONE);
 }
 
 static fInt Convert_ULONG_ToFraction(uint32_t X)
@@ -382,14 +382,14 @@ static int ConvertBackToInteger (fInt A) /*THIS is the function that will be use
 
 	scaledDecimal.full = uGetScaledDecimal(A);
 
-	fullNumber = fAdd(scaledDecimal,scaledReal);
+	fullNumber = fAdd(scaledDecimal, scaledReal);
 
 	return fullNumber.full;
 }
 
 static fInt fGetSquare(fInt A)
 {
-	return fMultiply(A,A);
+	return fMultiply(A, A);
 }
 
 /* x_new = x_old - (x_old^2 - C) / (2 * x_old) */
@@ -447,7 +447,7 @@ static fInt fSqrt(fInt num)
 
 	} while (uAbs(error) > 0);
 
-	return (x_new);
+	return x_new;
 }
 
 static void SolveQuadracticEqn(fInt A, fInt B, fInt C, fInt Roots[])
@@ -459,7 +459,7 @@ static void SolveQuadracticEqn(fInt A, fInt B, fInt C, fInt Roots[])
 	f_CONSTANT100 = ConvertToFraction(100);
 	f_CONSTANT10 = ConvertToFraction(10);
 
-	while(GreaterThan(A, f_CONSTANT100) || GreaterThan(B, f_CONSTANT100) || GreaterThan(C, f_CONSTANT100)) {
+	while (GreaterThan(A, f_CONSTANT100) || GreaterThan(B, f_CONSTANT100) || GreaterThan(C, f_CONSTANT100)) {
 		A = fDivide(A, f_CONSTANT10);
 		B = fDivide(B, f_CONSTANT10);
 		C = fDivide(C, f_CONSTANT10);
@@ -515,7 +515,7 @@ static int uGetScaledDecimal (fInt A) /*Converts the fractional portion to whole
 		dec[i] = tmp / (1 << SHIFT_AMOUNT);
 		tmp = tmp - ((1 << SHIFT_AMOUNT)*dec[i]);
 		tmp *= 10;
-		scaledDecimal = scaledDecimal + dec[i]*uPow(10, PRECISION - 1 -i);
+		scaledDecimal = scaledDecimal + dec[i]*uPow(10, PRECISION - 1 - i);
 	}
 
 	return scaledDecimal;