Re: [PATCH v9 0/4] arm64: arch_timer: Add workaround for hisilicon-161010101 erratum

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On 2017/1/20 23:04, Mark Rutland wrote:
On Thu, Jan 19, 2017 at 09:35:12PM +0800, Ding Tianhong wrote:
Ding Tianhong (4):
  arm64: arch_timer: Add device tree binding for hisilicon-161010101
    erratum
  arm64: arch_timer: Introduce a generic erratum handing mechanism for
    fsl-a008585
  arm64: arch_timer: Work around Erratum Hisilicon-161010101
  arm64: arch timer: Add timer erratum property for Hip05-d02 and
    Hip06-d03

 Documentation/admin-guide/kernel-parameters.txt    |   9 --
 Documentation/arm64/silicon-errata.txt             |  43 +++---
 .../devicetree/bindings/arm/arch_timer.txt         |   6 +
 arch/arm64/boot/dts/hisilicon/hip05.dtsi           |   1 +
 arch/arm64/boot/dts/hisilicon/hip06.dtsi           |   1 +
 arch/arm64/include/asm/arch_timer.h                |  38 ++----
 drivers/clocksource/Kconfig                        |  18 +++
 drivers/clocksource/arm_arch_timer.c               | 150 +++++++++++++++------
 8 files changed, 171 insertions(+), 95 deletions(-)

I've picked these up (with a few local cleanups), given that some local
testing, and pushed the result to a branch [1] on my git repo.

There are likely to be clashes with the arm64 tree (e.g. for
silicon-errata.txt), and we're also likely to have more arch timer
updates shortly for the GTDT stuff,

Yes, GTDT patches conflict with this patch set but it's easy to
fix.

so I think the best bet is for both
arm64 and the clocksource tree to pull that branch for v4.11.

Alternatively, we could take this all through the arm64 tree, if the
clocksource maintainers are happy with that.

Thoughts?

GTDT patch set is adding ACPI support for arch timer, and it's
only used for ARM64 now, in order to handler the conflict easily,
I think take them all through arm64 tree is better (I was working
with Fuwei for the GTDT patch set and I hope it's not blocked by
"who will merge the code"...)

Thanks
Hanjun
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