[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Fri, 12 Dec 2014 09:09:24 -0800
From: Ray Jui <rjui@...adcom.com>
To: Arnd Bergmann <arnd@...db.de>
CC: Bjorn Helgaas <bhelgaas@...gle.com>,
Rob Herring <robh+dt@...nel.org>,
Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
"Ian Campbell" <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>,
Grant Likely <grant.likely@...aro.org>,
Christian Daudt <bcm@...thebug.org>,
Matt Porter <mporter@...aro.org>,
Florian Fainelli <f.fainelli@...il.com>,
Russell King <linux@....linux.org.uk>,
Hauke Mehrtens <hauke@...ke-m.de>,
Lucas Stach <l.stach@...gutronix.de>,
Scott Branden <sbranden@...adcom.com>,
<linux-pci@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<bcm-kernel-feedback-list@...adcom.com>,
<devicetree@...r.kernel.org>
Subject: Re: [PATCH v2 3/4] ARM: mach-bcm: Enable PCIe support for iProc
On 12/12/2014 9:02 AM, Arnd Bergmann wrote:
> On Friday 12 December 2014 08:56:19 Ray Jui wrote:
>>>>
>>>> diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
>>>> index aaeec78..a13a0b2 100644
>>>> --- a/arch/arm/mach-bcm/Kconfig
>>>> +++ b/arch/arm/mach-bcm/Kconfig
>>>> @@ -19,6 +19,7 @@ config ARCH_BCM_IPROC
>>>> select ARCH_REQUIRE_GPIOLIB
>>>> select ARM_AMBA
>>>> select PINCTRL
>>>> + select PCIE_IPROC
>>>> help
>>>> This enables support for systems based on Broadcom IPROC architected SoCs.
>>>> The IPROC complex contains one or more ARM CPUs along with common
>>>>
>>>
>>> No, just enable it in multi_v7_defconfig and bcm_defconfig.
>>>
>>> Arnd
>>>
>> Or can I simply have the PCIE_IPROC default to y in
>> drivers/pci/host/Kconfig? Note PCIE_IPROC depends on ARCH_BCM_IPROC. By
>> defaulting it to y, it will be automatically enabled for all iProc
>> family of SoCs.
>
> I still think it's best not to turn it on automatically. The convention
> for device drivers is to make them all optional.
>
> What you can do however is to add
>
> depends on ARCH_BCM_IPROC || COMPILE_TEST
>
> to the driver to do the reverse and not let the driver be turned on
> unless IPROC is selected or you are just testing the build.
> A lot of distros just turn on all drivers, so this way you wouldn't
> accidentally enable it for a kernel that doesn't support IPROC.
>
> Arnd
>
Okay I'll do that. Thanks.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists