From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 1/2] ARM: Add cpu_resume_arm() for firmwares that resume in ARM state
Date: Wed, 3 Jun 2015 00:40:48 +0100 [thread overview]
Message-ID: <20150602234048.GA7557@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1433272378-8470-2-git-send-email-sboyd@codeaurora.org>
On Tue, Jun 02, 2015 at 12:12:57PM -0700, Stephen Boyd wrote:
> Some platforms always enter the kernel in the ARM state even if
> the kernel is compiled for THUMB2. Add a small wrapper on top of
> cpu_resume() that switches into THUMB2 state.
>
> This fixes a problem reported by Kevin Hilman on next-20150601
> where the ifc6410 fails to boot a THUMB2 kernel because the
> platform's firmware always enters the kernel in ARM mode from
> deep idle states.
I think this bit of the commit message isn't quite correct: this will
only resolve the boot problem with a T2 kernel when the failing platform
is converted to use the cpu_resume_arm() entry point.
Apart from that, the patch looks good to me, thanks.
--
FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up
according to speedtest.net.
next prev parent reply other threads:[~2015-06-02 23:40 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-02 19:12 [PATCH v2 0/2] Fix cpuidle on qcom's THUMB2 kernels Stephen Boyd
2015-06-02 19:12 ` [PATCH v2 1/2] ARM: Add cpu_resume_arm() for firmwares that resume in ARM state Stephen Boyd
2015-06-02 23:40 ` Russell King - ARM Linux [this message]
2015-06-03 0:11 ` Stephen Boyd
2015-06-08 21:33 ` Kevin Hilman
2015-06-08 21:38 ` Stephen Boyd
2015-06-08 22:03 ` Kevin Hilman
2015-06-09 15:29 ` Russell King - ARM Linux
2015-06-09 18:32 ` Stephen Boyd
2015-06-15 6:33 ` Uwe Kleine-König
2015-06-15 11:01 ` Russell King - ARM Linux
2015-06-15 13:38 ` Uwe Kleine-König
2015-06-02 19:12 ` [PATCH v2 2/2] soc: qcom: spm: Fix idle on THUMB2 kernels Stephen Boyd
2015-06-04 16:15 ` Lina Iyer
2015-06-02 21:23 ` [PATCH v2 0/2] Fix cpuidle on qcom's " Kevin Hilman
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