regulator: act8865: Fix act8600_sudcdc_voltage_ranges setting
authorAxel Lin <axel.lin@ingics.com>
Thu, 10 Jan 2019 09:26:16 +0000 (17:26 +0800)
committerMark Brown <broonie@kernel.org>
Mon, 14 Jan 2019 11:50:42 +0000 (11:50 +0000)
The act8600_sudcdc_voltage_ranges setting does not match the datasheet.

The problems in below entry:
  REGULATOR_LINEAR_RANGE(19000000, 191, 255, 400000),

1. The off-by-one min_sel causes wrong volatage calculation.
   The min_sel should be 192.
2. According to the datasheet[1] Table 7. (on page 43):
   The selector 248 (0b11111000) ~ 255 (0b11111111) are 41.400V.

Also fix off-by-one for ACT8600_SUDCDC_VOLTAGE_NUM.

[1] https://active-semi.com/wp-content/uploads/ACT8600_Datasheet.pdf

Fixes: df3a950e4e73 ("regulator: act8865: Add act8600 support")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
drivers/regulator/act8865-regulator.c

index 21e20483bd918b83e91cf5d8d14e73b4c208b99a..e0239cf3f56d77ec1e2ee4f0f91a82184929ea42 100644 (file)
  * ACT8865 voltage number
  */
 #define        ACT8865_VOLTAGE_NUM     64
-#define ACT8600_SUDCDC_VOLTAGE_NUM     255
+#define ACT8600_SUDCDC_VOLTAGE_NUM     256
 
 struct act8865 {
        struct regmap *regmap;
@@ -222,7 +222,8 @@ static const struct regulator_linear_range act8600_sudcdc_voltage_ranges[] = {
        REGULATOR_LINEAR_RANGE(3000000, 0, 63, 0),
        REGULATOR_LINEAR_RANGE(3000000, 64, 159, 100000),
        REGULATOR_LINEAR_RANGE(12600000, 160, 191, 200000),
-       REGULATOR_LINEAR_RANGE(19000000, 191, 255, 400000),
+       REGULATOR_LINEAR_RANGE(19000000, 192, 247, 400000),
+       REGULATOR_LINEAR_RANGE(41400000, 248, 255, 0),
 };
 
 static struct regulator_ops act8865_ops = {