linux-kernel - regulator: s2mps11: Question about the code updating ramp

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Date:	Sat, 03 Aug 2013 17:13:08 +0800
From:	Axel Lin <axel.lin@...ics.com>
To:	Yadwinder Singh Brar <yadi.brar@...sung.com>
Cc:	Mark Brown <broonie@...nel.org>,
	Sangbeom Kim <sbkim73@...sung.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	linux-kernel@...r.kernel.org
Subject: regulator: s2mps11: Question about the code updating ramp_delay
 setting

Hi Yadwinder,
The code updating ramp_delay setting looks wrong to me.

Current code:
        return regmap_update_bits(rdev->regmap, ramp_reg,
                                  ramp_val << ramp_shift, 1 << ramp_shift);
I'd expect something like below:
        return regmap_update_bits(rdev->regmap, ramp_reg,
                                  ramp_mask << ramp_shift,
                                  ramp_val << ramp_shift);
I don't have the datasheet so I don't know the correct ramp_mask setting
here. Can you check if this needs fix?

Thanks,
Axel


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