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| author | Axel Lin <axel.lin@ingics.com> | 2012-12-28 17:09:03 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-06-07 16:02:07 -0700 |
| commit | cd858528541c10bb879436da8fce44e0c9c85b97 (patch) | |
| tree | 1e5c73e7fd5c31c7c6efb860ca92dbf6ed5754c3 /lib/flex_array.c | |
| parent | c7e0950c2d360599d5b859ff43caf142115ac518 (diff) | |
regulator: max8997: Use uV in voltage_map_desc
commit bc3b7756b5ff66828acf7bc24f148d28b8d61108 upstream.
Current code does integer division (min_vol = min_uV / 1000) before pass
min_vol to max8997_get_voltage_proper_val().
So it is possible min_vol is truncated to a smaller value.
For example, if the request min_uV is 800900 for ldo.
min_vol = 800900 / 1000 = 800 (mV)
Then max8997_get_voltage_proper_val returns 800 mV for this case which is lower
than the requested voltage.
Use uV rather than mV in voltage_map_desc to prevent truncation by integer
division.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
[bwh: Backported to 3.2:
- Adjust context
- voltage_map_desc also has an n_bits field]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Qiang Huang <h.huangqiang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/flex_array.c')
0 files changed, 0 insertions, 0 deletions