linux-kernel - Re: [PATCH v2 08/14] clk: rp1: Add support for clocks provided by RP1

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Message-ID: <Zx4g0H5nib7asHxc@apocalypse>
Date: Sun, 27 Oct 2024 12:15:28 +0100
From: Andrea della Porta <andrea.porta@...e.com>
To: Herve Codina <herve.codina@...tlin.com>
Cc: Andrea della Porta <andrea.porta@...e.com>,
	Stephen Boyd <sboyd@...nel.org>, Andrew Lunn <andrew@...n.ch>,
	Arnd Bergmann <arnd@...db.de>, Bartosz Golaszewski <brgl@...ev.pl>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Catalin Marinas <catalin.marinas@....com>,
	Conor Dooley <conor+dt@...nel.org>,
	Derek Kiernan <derek.kiernan@....com>,
	Dragan Cvetic <dragan.cvetic@....com>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Luca Ceresoli <luca.ceresoli@...tlin.com>,
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Masahiro Yamada <masahiroy@...nel.org>,
	Michael Turquette <mturquette@...libre.com>,
	Rob Herring <robh@...nel.org>,
	Saravana Kannan <saravanak@...gle.com>,
	St efan Wahren <wahrenst@....net>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	Will Deacon <will@...nel.org>, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
	linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org,
	phil@...pberrypi.com, jonathan@...pberrypi.com
Subject: Re: [PATCH v2 08/14] clk: rp1: Add support for clocks provided by RP1

Hi Herve,

On 18:32 Wed 23 Oct     , Herve Codina wrote:
> Hi Andrea,
> 
> 
> On Wed, 23 Oct 2024 17:36:06 +0200
> Andrea della Porta <andrea.porta@...e.com> wrote:
> 
> > Hi Stephen,
> > 
> > On 15:08 Wed 09 Oct     , Stephen Boyd wrote:
> > > Quoting Andrea della Porta (2024-10-07 05:39:51)  
> > > > diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
> > > > index 299bc678ed1b..537019987f0c 100644
> > > > --- a/drivers/clk/Kconfig
> > > > +++ b/drivers/clk/Kconfig
> > > > @@ -88,6 +88,15 @@ config COMMON_CLK_RK808
> > > >           These multi-function devices have two fixed-rate oscillators, clocked at 32KHz each.
> > > >           Clkout1 is always on, Clkout2 can off by control register.
> > > >  
> > > > +config COMMON_CLK_RP1
> > > > +       tristate "Raspberry Pi RP1-based clock support"
> > > > +       depends on PCI || COMPILE_TEST  
> > > 
> > > A better limit would be some ARCH_* config.  
> > 
> > I've avoided ARCH_BCM2835 since the original intention is for this driver
> > to work (in the future) also for custom PCI cards with RP1 on-board, and not
> > only for Rpi5.
> 
> Maybe depends on CONFIG_MISC_RP1 ?
> CONFIG_MISC_RP1 enables the RP1 PCI driver

Yep, seems the most logical one, thanks.

Regards,
Andrea

> 
> Best regards,
> Hervé