linux-kernel - Re: [PATCH v4 08/10] misc: rp1: RaspberryPi RP1 misc driver

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Message-ID: <Z0Q2wJBMdN1dyJWA@apocalypse>
Date: Mon, 25 Nov 2024 09:35:12 +0100
From: Andrea della Porta <andrea.porta@...e.com>
To: Andrew Lunn <andrew@...n.ch>
Cc: Andrea della Porta <andrea.porta@...e.com>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczynski <kw@...ux.com>,
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>, Bartosz Golaszewski <brgl@...ev.pl>,
	Derek Kiernan <derek.kiernan@....com>,
	Dragan Cvetic <dragan.cvetic@....com>,
	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Saravana Kannan <saravanak@...gle.com>, linux-clk@...r.kernel.org,
	devicetree@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org, linux-gpio@...r.kernel.org,
	Masahiro Yamada <masahiroy@...nel.org>,
	Stefan Wahren <wahrenst@....net>,
	Herve Codina <herve.codina@...tlin.com>,
	Luca Ceresoli <luca.ceresoli@...tlin.com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH v4 08/10] misc: rp1: RaspberryPi RP1 misc driver

Hi Andrew,

On 20:33 Sun 24 Nov     , Andrew Lunn wrote:
> > +++ b/drivers/misc/rp1/rp1-pci.dtso
> > @@ -0,0 +1,8 @@
> > +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> > +
> > +/* the dts overlay is included from the dts directory so
> > + * it can be possible to check it with CHECK_DTBS while
> > + * also compile it from the driver source directory.
> > + */
> > +
> > +#include "arm64/broadcom/rp1.dtso"
> 
> This is probably O.K, for now, but really the tooling should be
> extended so that DT files can be checked anywhere in the tree. I can
> see more such embedded DT overlays appearing with time, and there is
> nothing actually arm64 specific here, it is architecture agnostic. It
> is just a PCIe device, there is no reason it could not be used on a
> S390, Risc-V, or loongarch.

I completely agree with you.

Regards,
Andrea

> 
>       Andrew