Commit 1048bfd8 authored by Axel Lin's avatar Axel Lin Committed by Greg Kroah-Hartman

regulator: act8865: Fix act8600_sudcdc_voltage_ranges setting

[ Upstream commit f01a7beb ]

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: df3a950e ("regulator: act8865: Add act8600 support")
Signed-off-by: 's avatarAxel Lin <axel.lin@ingics.com>
Signed-off-by: 's avatarMark Brown <broonie@kernel.org>
Signed-off-by: 's avatarSasha Levin <sashal@kernel.org>
parent e78d5e16
......@@ -131,7 +131,7 @@
* 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 = {
......
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