From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mark Brown <broonie@kernel.org>
Subject: Re: [PATCH v3 1/2] Driver core: add bus_find_device_by_fwnode
Date: Tue, 9 Oct 2018 16:15:33 +0100
Message-ID: <20181009151533.GC20774@sirena.org.uk>
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To: Wolfram Sang <wsa@the-dreams.de>
Cc: Silesh C V <svellattu@mvista.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, "Rafael J. Wysocki" <rafael@kernel.org>, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-i2c@vger.kernel.org, linux-rdma@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-spi@vger.kernel.org, Mathieu Poirier <mathieu.poirier@linaro.org>, Lijun Ou <oulijun@huawei.com>, "Wei Hu(Xavier)" <xavier.huwei@huawei.com>, Yisen Zhuang <yisen.zhuang@huawei.com>, Salil Mehta <salil.mehta@huawei.com>, Srinivas Kandagatla <srinivas.kandagatla@linaro.org>, Andrew Lunn <andrew@lunn.ch>, Florian Fainelli <f.fainelli@gmail.com>, Rob Herring <robh+dt@kernel.org>, Frank Rowand <frowand.list@gmail.com>, "David S. Miller" <davem@davemloft.n>
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On Tue, Oct 09, 2018 at 01:02:10PM +0200, Wolfram Sang wrote:

> We recently had this discussion in I2C world about using the parent if
> the (logical) device has a NULL fw_node [1]. I don't know if the other
> subsystems you modify use logical devices as well? If no, it seems we
> need an additional check for the parent in the I2C core only. If yes,
> this might be considered in your patchset?

SPI has a logical controller device as well.

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