From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: arm64 defconfig breakage (gpio) in next-20130218
Date: Thu, 21 Feb 2013 11:02:15 +0100 [thread overview]
Message-ID: <1634805.kh17mYrJe5@wuerfel> (raw)
In-Reply-To: <20130221093104.GB23442@S2101-09.ap.freescale.net>
On Thursday 21 February 2013 17:31:07 Shawn Guo wrote:
> >
> > I've bisected this down to 0fa2fd9a0d: "Merge branch 'linusw/devel' of
> > git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git into
> > gpio/next". Both parent commits build fine.
> >
> > I've played around a bit, and selecting ARCH_REQUIRE_GPIOLIB in the arm64
> > Kconfig fixes the issue, but I'm unfamilar with gpio{,lib} and I'm not sure
> > that's the best/correct way of solving this.
>
> Kconfig GENERIC_GPIO is designed as an option defined at architecture
> level and select by platform who knows how gpio driver/API is
> implemented. The following change should fix the error.
>
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index f532ce5..aca4a25 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -93,7 +93,7 @@ config IOMMU_HELPER
> def_bool SWIOTLB
>
> config GENERIC_GPIO
> - def_bool y
> + bool
>
> source "init/Kconfig"
But we have no arm64 platforms that would pick GENERIC_GPIO, it's expected
to come from GPIOLIB anyway. I think the right fix is this:
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index ab4aa54..3fab0db 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -3,6 +3,7 @@ config ARM64
select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
select ARCH_WANT_FRAME_POINTERS
+ select ARCH_WANT_OPTIONAL_GPIOLIB
select ARM_AMBA
select ARM_ARCH_TIMER
select CLONE_BACKWARDS
@@ -92,9 +93,6 @@ config SWIOTLB
config IOMMU_HELPER
def_bool SWIOTLB
-config GENERIC_GPIO
- def_bool y
-
source "init/Kconfig"
source "kernel/Kconfig.freezer"
Arnd
next prev parent reply other threads:[~2013-02-21 10:02 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-18 11:14 arm64 defconfig breakage (gpio) in next-20130218 Mark Rutland
2013-02-21 9:31 ` Shawn Guo
2013-02-21 10:02 ` Arnd Bergmann [this message]
2013-02-21 10:36 ` Grant Likely
2013-02-21 10:44 ` [PATCH] arm64: select ARCH_WANT_OPTIONAL_GPIOLIB Arnd Bergmann
2013-02-21 21:35 ` Linus Walleij
2013-02-22 14:29 ` Grant Likely
[not found] ` <1636745.vSza8MrtIn@wuerfel>
2013-02-21 10:46 ` Catalin Marinas
2013-02-22 9:39 ` Mark Rutland
2013-02-21 10:37 ` arm64 defconfig breakage (gpio) in next-20130218 Catalin Marinas
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