linux-kernel - Re: [PATCH 5/7] mfd: ds90ux9xx: add I2C bridge/alias and link connection driver

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Message-ID: <20181012060455.GV4939@dell>
Date:   Fri, 12 Oct 2018 07:04:55 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Vladimir Zapolskiy <vz@...ia.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Marek Vasut <marek.vasut@...il.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Wolfram Sang <wsa@...-dreams.de>, devicetree@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-media@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Vladimir Zapolskiy <vladimir_zapolskiy@...tor.com>
Subject: Re: [PATCH 5/7] mfd: ds90ux9xx: add I2C bridge/alias and link
 connection driver

On Tue, 09 Oct 2018, Vladimir Zapolskiy wrote:

> From: Vladimir Zapolskiy <vladimir_zapolskiy@...tor.com>
> 
> The change adds TI DS90Ux9xx I2C bridge/alias subdevice driver and
> FPD Link connection handling mechanism.
> 
> Access to I2C devices connected to a remote de-/serializer is done in
> a transparent way, on established link detection event such devices
> are registered on an I2C bus, which serves a local de-/serializer IC.
> 
> The development of the driver was a collaborative work, the
> contribution done by Balasubramani Vivekanandan includes:
> * original simplistic implementation of the driver,
> * support of implicitly specified devices in device tree,
> * support of multiple FPD links for TI DS90Ux9xx,
> * other kind of valuable review comments, clean-ups and fixes.
> 
> Also Steve Longerbeam made the following changes:
> * clear address maps after linked device removal,
> * disable pass-through in disconnection,
> * qualify locked status with non-zero remote address.
> 
> Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@...tor.com>
> ---
>  drivers/mfd/Kconfig                |   8 +
>  drivers/mfd/Makefile               |   1 +
>  drivers/mfd/ds90ux9xx-i2c-bridge.c | 764 +++++++++++++++++++++++++++++
>  3 files changed, 773 insertions(+)
>  create mode 100644 drivers/mfd/ds90ux9xx-i2c-bridge.c

Shouldn't this live in drivers/i2c?

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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