From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 01/11] ARM: vexpress: use ARM_CPU_SUSPEND if needed
Date: Fri, 13 Feb 2015 10:57:53 +0000 [thread overview]
Message-ID: <20150213105752.GU8656@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <20150213103716.GQ14954@e106497-lin.cambridge.arm.com>
On Fri, Feb 13, 2015 at 10:37:16AM +0000, Liviu Dudau wrote:
> On Thu, Feb 12, 2015 at 07:42:33PM +0000, Arnd Bergmann wrote:
> > The vexpress tc2 power management code calls mcpm_loopback, which
> > is only available if ARM_CPU_SUSPEND is enabled, otherwise we
> > get a link error:
> >
> > arch/arm/mach-vexpress/built-in.o: In function `tc2_pm_init':
> > arch/arm/mach-vexpress/tc2_pm.c:389: undefined reference to `mcpm_loopback'
>
> Arnd,
>
> We are having reports of TC2 not booting with MCPM enabled. Lorenzo
> was investigating this but then headed for Linaro Connect this week,
> so we don't have yet a resolution. Can this patch be postponed for
> a later -rc?
Why?
This patch isn't forcing MCPM to be enabled for Versatile Express.
* In order to build tc2_pm.c, MCPM must already be enabled (the
feature depends on MCPM in the Kconfig already)
* When this feature is enabled, the above link error occurs if
ARM_CPU_SUSPEND is not also enabled.
So, it is merely fixing the requirement that tc2_pm.c needs the CPU
suspend infrastructure, which in turn has no effect on whether MCPM
is enabled or not.
--
FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up
according to speedtest.net.
next prev parent reply other threads:[~2015-02-13 10:57 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-12 19:42 [PATCH 00/11] ARM: random randconfig fixes, soc specific Arnd Bergmann
2015-02-12 19:42 ` [PATCH 01/11] ARM: vexpress: use ARM_CPU_SUSPEND if needed Arnd Bergmann
2015-02-13 1:31 ` Nicolas Pitre
2015-02-13 10:37 ` Liviu Dudau
2015-02-13 10:57 ` Russell King - ARM Linux [this message]
2015-02-13 11:01 ` Liviu Dudau
2015-02-13 11:16 ` Russell King - ARM Linux
2015-02-13 11:22 ` Liviu Dudau
2015-02-13 23:03 ` Nicolas Pitre
2015-02-13 22:55 ` Nicolas Pitre
2015-02-14 1:34 ` Liviu Dudau
2015-02-14 20:42 ` Lorenzo Pieralisi
2015-02-12 19:42 ` [PATCH 02/11] ARM: sunxi: always select RESET_CONTROLLER Arnd Bergmann
2015-02-13 9:09 ` Maxime Ripard
2015-02-16 20:47 ` Arnd Bergmann
2015-02-12 19:42 ` [PATCH 03/11] ARM: BCM: put back ARCH_MULTI_V7 dependency for mobile Arnd Bergmann
2015-02-12 20:02 ` Florian Fainelli
2015-02-12 20:08 ` arnd at arndb.de
2015-02-12 21:57 ` Florian Fainelli
2015-02-12 22:07 ` Scott Branden
2015-02-12 19:42 ` [PATCH 04/11] ARM: davinci: davinci_cfg_reg cannot be init Arnd Bergmann
2015-02-16 15:37 ` Sekhar Nori
2015-02-12 19:42 ` [PATCH 05/11] ARM: davinci: multi-soc kernels require AUTO_ZRELADDR Arnd Bergmann
2015-02-16 15:50 ` Sekhar Nori
2015-02-12 19:42 ` [PATCH 06/11] ARM: at91: fix pm declarations Arnd Bergmann
2015-02-13 8:37 ` Nicolas Ferre
2015-02-12 19:42 ` [PATCH 07/11] ARM: prima2: do not select SMP_ON_UP Arnd Bergmann
2015-02-13 3:05 ` Barry Song
2015-02-12 19:42 ` [PATCH 08/11] ARM: ixp4xx: fix {in,out}s{bwl} data types Arnd Bergmann
2015-02-16 14:16 ` Krzysztof Hałasa
2015-02-12 19:42 ` [PATCH 09/11] ARM: rockchip: make rockchip_suspend_init conditional Arnd Bergmann
2015-02-13 19:26 ` Heiko Stübner
2015-02-12 19:42 ` [PATCH 10/11] ARM: sti: always enable RESET_CONTROLLER Arnd Bergmann
2015-02-13 7:28 ` Patrice Chotard
2015-02-13 8:09 ` Maxime Coquelin
2015-02-12 19:42 ` [PATCH 11/11] ARM: mvebu: build armada375-smp code conditionally Arnd Bergmann
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