linux-kernel - Re: [PATCH RFT 1/2] regulator: twl: Fix the formula to calculate vsel and voltage for twl6030ldo

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Message-ID: <20120715210022.GF4041@opensource.wolfsonmicro.com>
Date:	Sun, 15 Jul 2012 22:00:23 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Axel Lin <axel.lin@...il.com>
Cc:	Rajendra Nayak <rnayak@...com>,
	Peter Ujfalusi <peter.ujfalusi@...com>,
	Liam Girdwood <lrg@...com>, linux-kernel@...r.kernel.org,
	linux-omap@...r.kernel.org
Subject: Re: [PATCH RFT 1/2] regulator: twl: Fix the formula to calculate
 vsel and voltage for twl6030ldo

On Mon, Jul 09, 2012 at 07:01:26PM +0800, Axel Lin wrote:

> I found a problem that before commit 3e3d3be79c, the voltage tables were
> not linear mapping. So why we can convert these voltage mapping table to
> Voltage(in mV) = 1000mv + 100mv * (vsel - 1)?

Guys, it's pretty concerning that there's been no response at all to
this.  Looking at the changes Axel's statement above is accurate for at
least VAUX1 and VMMC, I didn't check all the regulators, so either the
original code was buggy or there's an issue that needs fixing in the
current code.

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