regulator: Add REGULATOR_LINEAR_RANGE macro

Add REGULATOR_LINEAR_RANGE macro and convert regulator drivers to use it.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/drivers/regulator/as3711-regulator.c b/drivers/regulator/as3711-regulator.c
index d0a97e5..f8524f9 100644
--- a/drivers/regulator/as3711-regulator.c
+++ b/drivers/regulator/as3711-regulator.c
@@ -117,23 +117,19 @@
 };
 
 static const struct regulator_linear_range as3711_sd_ranges[] = {
-	{ .min_uV = 612500, .min_sel = 0x1, .max_sel = 0x40, .uV_step = 12500 },
-	{ .min_uV = 1425000, .min_sel = 0x41, .max_sel = 0x70,
-	  .uV_step = 25000 },
-	{ .min_uV = 2650000, .min_sel = 0x71, .max_sel = 0x7f,
-	  .uV_step = 50000 },
+	REGULATOR_LINEAR_RANGE(612500, 0x1, 0x40, 12500),
+	REGULATOR_LINEAR_RANGE(1425000, 0x41, 0x70, 25000),
+	REGULATOR_LINEAR_RANGE(2650000, 0x71, 0x7f, 50000),
 };
 
 static const struct regulator_linear_range as3711_aldo_ranges[] = {
-	{ .min_uV = 1200000, .min_sel = 0, .max_sel = 0xf, .uV_step = 50000 },
-	{ .min_uV = 1800000, .min_sel = 0x10, .max_sel = 0x1f,
-	  .uV_step = 100000 },
+	REGULATOR_LINEAR_RANGE(1200000, 0, 0xf, 50000),
+	REGULATOR_LINEAR_RANGE(1800000, 0x10, 0x1f, 100000),
 };
 
 static const struct regulator_linear_range as3711_dldo_ranges[] = {
-	{ .min_uV = 900000, .min_sel = 0, .max_sel = 0x10, .uV_step = 50000 },
-	{ .min_uV = 1750000, .min_sel = 0x20, .max_sel = 0x3f,
-	  .uV_step = 50000 },
+	REGULATOR_LINEAR_RANGE(900000, 0, 0x10, 50000),
+	REGULATOR_LINEAR_RANGE(1750000, 0x20, 0x3f, 50000),
 };
 
 #define AS3711_REG(_id, _en_reg, _en_bit, _vmask, _vshift, _min_uV, _max_uV, _sfx)	\