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| author | Axel Lin <axel.lin@ingics.com> | 2013-07-30 04:46:28 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-07-30 12:20:00 +0200 |
| commit | d9493234e20e8153495fa118b60bdff22fdfc6c8 (patch) | |
| tree | c4e93d3ee4d3eb110b7ef0b81046cf2026acc301 /drivers/regulator/da903x.c | |
| parent | regulator: pfuze100: Use regulator_map_voltage_ascend (diff) | |
| download | linux-d9493234e20e8153495fa118b60bdff22fdfc6c8.tar.xz linux-d9493234e20e8153495fa118b60bdff22fdfc6c8.zip | |
regulator: pfuze100: Fix n_voltages setting for SW2~SW4 with high bit set
Current code adjust min_uV and uV_step but missed adjusting the n_voltages
setting.
When BIT6 is clear:
n_voltages = (1975000 - 400000) / 25000 + 1 = 64
When BIT6 is set:
n_voltages = (3300000 - 800000) / 50000 + 1 = 51
The n_voltages needs update because when BIT6 is set 0x73 ~ 0x7f are reserved.
When using regulator_list_voltage_linear, the n_voltages does matter here
because wrong n_voltages setting make the equation return wrong result.
e.g. if selector is 63, regulator_list_voltage_linear returns
800000 + (50000 * 63) = 4000000
It should return -EINVAL if the selector is in the range of 51 ~ 63.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/regulator/da903x.c')
0 files changed, 0 insertions, 0 deletions