linux-kernel - Re: [PATCH v9 -next 08/12] arm64: dts: bcm2712: Add external clock for RP1 chipset on Rpi5

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Message-ID: <aB0d8kNVtAEoW8Ts@apocalypse>
Date: Thu, 8 May 2025 23:11:14 +0200
From: Andrea della Porta <andrea.porta@...e.com>
To: Florian Fainelli <florian.fainelli@...adcom.com>
Cc: Andrea della Porta <andrea.porta@...e.com>,
	Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>, linux-clk@...r.kernel.org,
	devicetree@...r.kernel.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>,
	kernel-list@...pberrypi.com
Subject: Re: [PATCH v9 -next 08/12] arm64: dts: bcm2712: Add external clock
 for RP1 chipset on Rpi5

Hi Florian,

On 19:10 Wed 07 May     , Florian Fainelli wrote:
> 
> 
> On 5/7/2025 4:13 PM, 'Andrea della Porta' via BCM-KERNEL-FEEDBACK-LIST,PDL
> wrote:
> > Hi Florian
> > 
> > On 09:32 Wed 07 May     , Florian Fainelli wrote:
> > > 
> > > 
> > > On 5/6/2025 10:49 PM, Andrea della Porta wrote:
> > > > Hi Florian,
> > > > 
> > > > On 20:53 Tue 22 Apr     , Andrea della Porta wrote:
> > > > > The RP1 found on Raspberry Pi 5 board needs an external crystal at 50MHz.
> > > > > Add clk_rp1_xosc node to provide that.
> > > > > 
> > > > > Signed-off-by: Andrea della Porta <andrea.porta@...e.com>
> > > > > Reviewed-by: Florian Fainelli <florian.fainelli@...adcom.com>
> > > > 
> > > > A gentle reminder for patches 8 through 12 of this series, which I guess
> > > > would ideally be taken by you. Since the merge window is approaching, do
> > > > you think it's feasible to iterate a second pull request to Arnd with my
> > > > patches too?
> > > > 
> > > > With respect to your devicetree/next branch, my patches have the following
> > > > conflicts:
> > > > 
> > > > PATCH 9:
> > > > - arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts: &pcie1 and &pcie2
> > > >     reference at the end, my patch was rebased on linux-next which has them
> > > >     while your devicetree branch has not. This is trivial to fix too.
> > > > 
> > > > PATCH 9 and 10:
> > > > - arch/arm64/boot/dts/broadcom/Makefile on your branch has a line recently
> > > >     added by Stefan's latest patch for RPi2. The fix is trivial.
> > > > 
> > > > PATCH 11 and 12:
> > > > - arch/arm64/configs/defconfig: just a couple of fuzz lines.
> > > > 
> > > > Please let me know if I should resend those patches adjusted for your tree.
> > > 
> > > Yes please resend them today or tomorrow so I can send them the following
> > > day. Thanks
> > 
> > Sorry, what's the best wasy to provide the updated patch 8 to 12 to you?
> > 
> > 1) Resend the entire patchset (V10) with relevant patches updated
> > 2) Send only updated patches 8 through 12 (maybe as an entirely new patchset with
> >     only those specific patches)
> 
> Either of those two options would work. Maybe let's do option 2) in the
> interest of keeping the traffic low for people.

Could you please take a look at this:

https://lore.kernel.org/all/aBxtyvI3LUaM3P00@apocalypse/#t

besides patches 8 through 12, would you like to take also binding patches + clock
driver (patches 1 to 4, if Linux Walleij is not willing to take patch 2 himself),
and maybe also misc driver and its dts (patches 6 and 7 unless Greg has different
ideas)? I know this is almost the entire patchset, but it's getting hard to escape
the dependency maze.
I'm open to any alternative solutions, more details in the link above.

Many thanks,
Andrea

> -- 
> Florian
>