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Date:   Wed, 4 Jul 2018 15:32:07 +0100
From:   Mark Brown <broonie@kernel.org>
To:     Ben Whitten <Ben.Whitten@lairdtech.com>
Cc:     Andreas =?iso-8859-1?Q?F=E4rber?= <afaerber@suse.de>,
        "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
        "linux-arm-kernel@lists.infradead.org" 
        <linux-arm-kernel@lists.infradead.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Jian-Hong Pan <starnight@g.ncu.edu.tw>,
        Jiri Pirko <jiri@resnulli.us>,
        Marcel Holtmann <marcel@holtmann.org>,
        "David S . Miller" <davem@davemloft.net>,
        Matthias Brugger <mbrugger@suse.com>,
        Janus Piwek <jpiwek@arroweurope.com>,
        Michael =?iso-8859-1?Q?R=F6der?= <michael.roeder@avnet.eu>,
        Dollar Chen <dollar.chen@wtmec.com>,
        Ken Yu <ken.yu@rakwireless.com>,
        Steve deRosier <derosier@gmail.com>,
        "linux-spi@vger.kernel.org" <linux-spi@vger.kernel.org>,
        "LoRa_Community_Support@semtech.com" 
        <LoRa_Community_Support@semtech.com>,
        Hasnain Virk <Hasnain.Virk@arm.com>
Subject: Re: [RFC net-next 15/15] net: lora: Add Semtech SX1301
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On Wed, Jul 04, 2018 at 01:41:42PM +0000, Ben Whitten wrote:

Please fix your mail client to word wrap within paragraphs at something
substantially less than 80 columns.  Doing this makes your messages much
easier to read and reply to.

> In my SX1257 driver currently the regmap is backed via SPI with
> devm_regmap_init_spi, please correct me if I am wrong but if I
> understand correctly this could be split out to regmap backed by SPI
> in the case of a direct host connection, and a regmap backed by the
> SX1301's regmapped strobing register interface, regmap_bus?

Yes.

> Is there a precedent to this I can examine?

There's lots of devices that provide both SPI and I2C, you'd just be
using a regmap_bus instead of the I2C one.  I can't recall an example of
the specific combination you're looking for though.

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