linux-kernel - Re: [PATCH v2 1/2] extcon: max77843: Add OTG power control to the MUIC driver

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Message-ID: <20171023154654.mzomcxhkk4zmcmr5@dell>
Date:   Mon, 23 Oct 2017 16:46:54 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Marek Szyprowski <m.szyprowski@...sung.com>
Cc:     linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        MyungJoo Ham <myungjoo.ham@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Subject: Re: [PATCH v2 1/2] extcon: max77843: Add OTG power control to the
 MUIC driver

On Mon, 23 Oct 2017, Lee Jones wrote:

> On Wed, 18 Oct 2017, Marek Szyprowski wrote:
> 
> > Enabling power on VBUS micro-usb pin is required only when passive OTG
> > cable is connected. Initially OTG VBUS power control was planned to be
> > done in charger driver. However such information is not really available
> > from the extcon notifications, so VBUS power control has to be done
> > directly in MUIC driver, which has all information about the attached
> > accessory.
> > 
> > For example SmartDock is externally powered accessory, provides OTG
> > (USB HOST) functionality and use VBUS pin for charging a device battery,
> > so the VBUS charging pump should be disabled in such case.
> > 
> > Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
> > Acked-by: Chanwoo Choi <cw00.choi@...sung.com>
> > ---
> >  drivers/extcon/extcon-max77843.c     | 16 ++++++++++++++++
> 
> >  include/linux/mfd/max77843-private.h |  3 +++
> 
> Applied, thanks.

Sorry, wrong key combo:

Acked-by: Lee Jones <lee.jones@...aro.org>

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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