Re: [PATCH v1 2/4] PCI: brcmstb: Add mechanism to turn on subdev regulators

From: Bjorn Helgaas <helgaas@kernel.org>
To: Jim Quinlan <james.quinlan@broadcom.com>
Cc: "Jim Quinlan" <jim2101024@gmail.com>,
	"open list:PCI NATIVE HOST BRIDGE AND ENDPOINT DRIVERS"
	<linux-pci@vger.kernel.org>,
	"Nicolas Saenz Julienne" <nsaenz@kernel.org>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Lorenzo Pieralisi" <lorenzo.pieralisi@arm.com>,
	"Cyril Brulebois" <kibi@debian.org>,
	"maintainer:BROADCOM BCM7XXX ARM ARCHITECTURE"
	<bcm-kernel-feedback-list@broadcom.com>,
	"Florian Fainelli" <f.fainelli@gmail.com>,
	"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
	"Rob Herring" <robh@kernel.org>,
	"Krzysztof Wilczyński" <kw@linux.com>,
	"moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE"
	<linux-rpi-kernel@lists.infradead.org>,
	"moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE"
	<linux-arm-kernel@lists.infradead.org>,
	"open list" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v1 2/4] PCI: brcmstb: Add mechanism to turn on subdev regulators
Date: Fri, 8 Jul 2022 14:07:23 -0500	[thread overview]
Message-ID: <20220708190723.GA366169@bhelgaas> (raw)
In-Reply-To: <CA+-6iNyfi805jef2dSAAup5r=V=WEE0dm5=kYLMhLrcAfeQHUQ@mail.gmail.com>

On Fri, Jul 08, 2022 at 10:14:11AM -0400, Jim Quinlan wrote:
> On Wed, Jul 6, 2022 at 7:12 PM Bjorn Helgaas <helgaas@kernel.org> wrote:
> > On Fri, Jul 01, 2022 at 12:27:23PM -0400, Jim Quinlan wrote:
> > > Add a mechanism to identify standard PCIe regulators in the DT, allocate
> > > them, and turn them on before the rest of the bus is scanned during
> > > pci_host_probe().
> > > ...

> > > +static int pci_subdev_regulators_add_bus(struct pci_bus *bus);
> > > +static void pci_subdev_regulators_remove_bus(struct pci_bus *bus);
> >
> > I think these forward declarations are unnecessary.  I can remove them
> > if you agree.
> 
> It is up to you.  I have a commit-set ready that will make a number of
> improvements to our driver.
> One of them removes all forward declarations.  Other commits concern
> other suggestions you
> have made, e.g. rename brcm_pcie_linkup() to brcm_pcie_start_link().

If you're planning a v2, I'd drop the declarations there.  No point in
adding them, only to remove them in a future patch (unless we need
them in the interim, of course, but in this case I don't think we do).

Bjorn