Re: [PATCH v3 2/6] nvme: assign of_node to nvme device

From: Christoph Hellwig <hch@lst.de>
To: Christian Marangi <ansuelsmth@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Miquel Raynal <miquel.raynal@bootlin.com>,
	Richard Weinberger <richard@nod.at>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Joern Engel <joern@lazybastard.org>,
	Keith Busch <kbusch@kernel.org>, Jens Axboe <axboe@kernel.dk>,
	Sagi Grimberg <sagi@grimberg.me>,
	Wolfram Sang <wsa+renesas@sang-engineering.com>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	linux-mmc@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org,
	linux-nvme@lists.infradead.org
Subject: Re: [PATCH v3 2/6] nvme: assign of_node to nvme device
Date: Tue, 6 Aug 2024 15:09:38 +0200	[thread overview]
Message-ID: <20240806130938.GA12231@lst.de> (raw)
In-Reply-To: <66b21f20.5d0a0220.200175.4b9b@mx.google.com>

On Tue, Aug 06, 2024 at 03:03:24PM +0200, Christian Marangi wrote:
> Well on embedded pure PCIe card most of the time are not a thing...
> Unless it's an enterprise product, everything is integrated in the pcb
> and not detachable for cost saving measure or also if the thing use PCIe
> protocol but it tighlty coupled with the SoC.

Yes, PCIe has a bunch of form factors, including just soldered on BGA
devices, but none of that matters at all for the logical protocol.

> This implementation is already very common for all kind of pcie devices
> like wireless card, gpio expander that are integrated in the PCB and
> require property in DT like calibration data, quirks or GPIO pin
> definitions, i2c...

Do you have a document on that/