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From: Lee Jones <lee.jones@linaro.org>
To: Christian Hohnstaedt <Christian.Hohnstaedt@wago.com>
Cc: Keerthy <j-keerthy@ti.com>, Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Rob Herring <robh+dt@kernel.org>,
	Tony Lindgren <tony@atomide.com>,
	linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	linux-omap@vger.kernel.org
Subject: Re: [PATCH v3 2/2] mfd: tps65218.c: Add input voltage options
Date: Thu, 17 Jan 2019 08:07:43 +0000	[thread overview]
Message-ID: <20190117080743.GI23399@dell> (raw)
In-Reply-To: <20190117055436.GA4213@wago.com>

On Thu, 17 Jan 2019, Christian Hohnstaedt wrote:

> On Wed, Jan 16, 2019 at 02:13:36PM +0000, Lee Jones wrote:
> > On Mon, 14 Jan 2019, Christian Hohnstaedt wrote:
> > 
> > > These options apply to all regulators in this chip.
> > > 
> > > ti,strict-supply-voltage-supervision:
> > >   Set STRICT flag in CONFIG1
> > > ti,under-voltage-limit-microvolt:
> > >   Select 2.75, 2.95, 3.25 or 3.35 V UVLO in CONFIG1
> > > ti,under-voltage-hyst-microvolt:
> > >   Select 200mV or 400mV UVLOHYS in CONFIG2
> > > 
> > > Signed-off-by: Christian Hohnstaedt <Christian.Hohnstaedt@wago.com>
> > > Tested-by: Keerthy <j-keerthy@ti.com>
> > > Reviewed-by: Keerthy <j-keerthy@ti.com>
> > > ---
> > >  drivers/mfd/tps65218.c       | 89 ++++++++++++++++++++++++++++++++++++++++++++
> > >  include/linux/mfd/tps65218.h |  4 ++
> > >  2 files changed, 93 insertions(+)
> > 
> > This looks like regulator code.
> > 
> > Why aren't you placing it into the regulator driver?
> 
> This code manages properties of the chip, affecting all regulators.
> 
> The regulator-driver has no hook to be called once for the chip.
> Even if I put this code into the regulator driver file,
> I will have to call it from here.
> 
> This would introduce a dependency from the mfd to the regulator code.

Sounds reasonable.  Thanks for the explanation.

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

  reply	other threads:[~2019-01-17  8:07 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-18  8:05 [PATCH 0/2] Add input voltage configuration for TPS65218 Christian Hohnstaedt
2018-12-18  8:05 ` [PATCH 1/2] dt-bindings: regulator: extend tps65218 bindings Christian Hohnstaedt
2018-12-24  9:15   ` J, KEERTHY
2018-12-28 22:51   ` Rob Herring
2018-12-18  8:05 ` [PATCH 2/2] mfd: tps65218.c: Add input voltage options Christian Hohnstaedt
2018-12-21 11:01   ` Lee Jones
2018-12-23 16:40     ` Tony Lindgren
2018-12-24  6:32       ` Lee Jones
2018-12-24  9:01         ` J, KEERTHY
2018-12-24  9:38     ` J, KEERTHY
2019-01-03 13:47 ` [PATCH v2 0/2] Add input voltage configuration for TPS65218 Christian Hohnstaedt
2019-01-14  8:16   ` [PATCH v3 " Christian Hohnstaedt
2019-01-14  8:16   ` [PATCH v3 1/2] dt-bindings: regulator: extend tps65218 bindings Christian Hohnstaedt
2019-01-14  8:16   ` [PATCH v3 2/2] mfd: tps65218.c: Add input voltage options Christian Hohnstaedt
2019-01-16 14:13     ` Lee Jones
2019-01-17  5:54       ` Christian Hohnstaedt
2019-01-17  8:07         ` Lee Jones [this message]
2019-01-17  8:08     ` Lee Jones
2019-01-03 13:47 ` [PATCH v2 1/2] dt-bindings: regulator: extend tps65218 bindings Christian Hohnstaedt
2019-01-11 16:17   ` Rob Herring
2019-01-03 13:47 ` [PATCH v2 2/2] mfd: tps65218.c: Add input voltage options Christian Hohnstaedt
2019-01-14  6:38   ` Keerthy

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