linux-kernel - Re: [PATCH v2 3/7] regulator: rk808: Migrate to regulator core's simplified DT parsing code

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 22 Apr 2016 11:03:09 +0200
From:	Wadim Egorov <w.egorov@...tec.de>
To:	Mark Brown <broonie@...nel.org>
Cc:	linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
	rtc-linux@...glegroups.com, devicetree@...r.kernel.org,
	linux-rockchip@...ts.infradead.org, robh+dt@...nel.org,
	pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	mturquette@...libre.com, sboyd@...eaurora.org,
	lee.jones@...aro.org, lgirdwood@...il.com, a.zummo@...ertech.it,
	alexandre.belloni@...e-electrons.com, dianders@...omium.org,
	zyw@...k-chips.com
Subject: Re: [PATCH v2 3/7] regulator: rk808: Migrate to regulator core's
 simplified DT parsing code



On 21.04.2016 18:01, Mark Brown wrote:
> On Thu, Apr 21, 2016 at 03:12:37PM +0200, Wadim Egorov wrote:
>
>> +static int rk808_set_suspend_voltage(struct regulator_dev *rdev, int uv)
>> +{
>> +	unsigned int reg;
>> +	int sel = regulator_map_voltage_linear(rdev, uv, uv);
>> +
>> +	if (sel < 0)
>> +		return -EINVAL;
>> +
>> +	reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET;
>> +
>> +	return regmap_update_bits(rdev->regmap, reg,
>> +				  rdev->desc->vsel_mask,
>> +				  sel);
>> +}
> This is fine but is adding a new feature and not part of the refactoring
> that the changelog talked about so should be in a separate commit.

This is not really a new feature.
rk808_set_suspend_voltage() was using regulator_map_voltage_linear_range().
I have just renamed the function to rk808_set_suspend_voltage_range()
and added an ops struct for ranges.
Yes, I have also added rk808_set_suspend_voltage(), but this is just a split
for the two types of ops that the driver needs now.
This was needed, because the driver used only linear ranges.
IMO it should be a part of the refactoring.