linux-kernel - RE: [PATCH v4 1/3] regulator: act8865: add PMIC act8865 driver

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] [day] [month] [year] [list]

Message-ID: <B256D81BAE5131468A838E5D7A24364172F2EA7F@penmbx01>
Date:	Tue, 24 Dec 2013 02:14:32 +0000
From:	"Yang, Wenyou" <Wenyou.Yang@...el.com>
To:	Mark Brown <broonie@...nel.org>
CC:	"lgirdwood@...il.com" <lgirdwood@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"grant.likely@...aro.org" <grant.likely@...aro.org>,
	"rob.herring@...xeda.com" <rob.herring@...xeda.com>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"vpalatin@...omium.org" <vpalatin@...omium.org>,
	"Ferre, Nicolas" <Nicolas.FERRE@...el.com>,
	"plagnioj@...osoft.com" <plagnioj@...osoft.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: RE: [PATCH v4 1/3] regulator: act8865: add PMIC act8865 driver



> -----Original Message-----
> From: Mark Brown [mailto:broonie@...nel.org]
> Sent: Monday, December 23, 2013 7:58 PM
> To: Yang, Wenyou
> Cc: lgirdwood@...il.com; linux-kernel@...r.kernel.org;
> grant.likely@...aro.org; rob.herring@...xeda.com; linux-
> doc@...r.kernel.org; vpalatin@...omium.org; Ferre, Nicolas;
> plagnioj@...osoft.com; linux-arm-kernel@...ts.infradead.org;
> devicetree@...r.kernel.org
> Subject: Re: [PATCH v4 1/3] regulator: act8865: add PMIC act8865 driver
> 
> On Mon, Dec 23, 2013 at 01:25:28PM +0800, Wenyou Yang wrote:
> 
> > +static int act8865_set_suspend_voltage(struct regulator_dev *rdev,
> > +int uV) {
> > +	u32	selector;
> > +
> > +	selector = regulator_map_voltage_iterate(rdev, uV, uV);
> > +
> > +	return regulator_set_voltage_sel_regmap(rdev, selector); }
> 
> This looks wrong - it's going to set the normal voltage register that is
> set for runtime voltage changes.  The suspend operations are only for
> setting separate voltage registers, many PMICs know about system suspend
> and provide separate settings for that.  If this one doesn't then it
> shouldn't implement this operation.
I re-read the act8865 datasheet, There is NO a separate voltage registers for the suspend operation.
So I will remove this operation.

Thanks.

Best Regards,
Wenyou Yang
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/