Re: [PATCH 1/1] riscv: dts: Enable device-tree overlay support for starfive devices

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On Wed, 12 Jul 2023 at 18:23, Conor Dooley <conor@xxxxxxxxxx> wrote:
>
> On Wed, Jul 12, 2023 at 06:17:19PM +0200, Emil Renner Berthing wrote:
> > On Mon, 10 Jul 2023 at 20:29, Conor Dooley <conor@xxxxxxxxxx> wrote:
> > >
> > >
> > > Emil, Walker,
> > >
> > > On Tue, Jun 27, 2023 at 04:06:20PM +0800, Felix Moessbauer wrote:
> > > > Add the '-@' DTC option for the starfive devices. This option
> > > > populates the '__symbols__' node that contains all the necessary symbols
> > > > for supporting device-tree overlays (for instance from the firmware or
> > > > the bootloader) on these devices.
> > > >
> > > > The starfive devices allow various modules to be connected and this
> > > > enables users to create out-of-tree device-tree overlays for these modules.
> > > >
> > > > Please note that this change does increase the size of the resulting DTB
> > > > by ~20%. For example, with v6.4 increase in size is as follows:
> > >
> > > Whatcha think?
> >
> > I'm fine with it. I just wonder why it's only the Nvidia Tegra boards
> > and the VisionFive's that need this. Surely other boards have pins for
> > expansion cards.
>
> It's totally not just these two - there's been a flurry of similar
> patches recently. The RPi stuff got it - I think I Acked that one from
> the DT side while Rob and Krzysztof were out of office, partially on the
> basis that the Nvidia stuff had it (and IIRC Renesas).
> Since then there's been a couple other ones that got the same treatment,
> including 32-bit ARM Microchip stuff. I've been avoiding doing it for the
> RISC-V Microchip to see if Rob decides that what I Acked was a problem.
>
> It seems generally helpful, so I've been a little suspicious as to why
> it was not done already...

Ah cool. I must have been grepping on v6.4.



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