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regulator: s2mps11: Fix setting ramp_delay 

Current code has wrong mask and val arguments for updating ramp_delay. Fix it.
Also ensure the return value of get_ramp_delay() won't greater than 3 because
the mask field for ramp_val only takes 2 bits.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Axel Lin 2013-08-05 14:08:37 +08:00 committed by Mark Brown
parent 80853304cd
commit f8f1d48be3
1 changed files with 6 additions and 2 deletions
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8
drivers/regulator/s2mps11.c
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@ -50,6 +50,10 @@ static int get_ramp_delay(int ramp_delay)
break;
cnt++;
}
if (cnt > 3)
cnt = 3;
return cnt;
}
@ -203,8 +207,8 @@ static int s2mps11_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
ramp_val = get_ramp_delay(ramp_delay);
return regmap_update_bits(rdev->regmap, ramp_reg,
ramp_val << ramp_shift, 1 << ramp_shift);
return regmap_update_bits(rdev->regmap, ramp_reg, 0x3 << ramp_shift,
ramp_val << ramp_shift);
ramp_disable:
return regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP,