This is a note to let you know that I've just added the patch titled
clocksource/drivers/arm_arch_timer: Add dt binding for hisilicon-161010101 erratum
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
clocksource-drivers-arm_arch_timer-add-dt-binding-for-hisilicon-161010101-erratum.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Mon Nov 6 10:07:35 CET 2017
From: Ding Tianhong <dingtianhong@xxxxxxxxxx>
Date: Sat, 7 Oct 2017 22:36:51 +0000
Subject: clocksource/drivers/arm_arch_timer: Add dt binding for hisilicon-161010101 erratum
From: Ding Tianhong <dingtianhong@xxxxxxxxxx>
[ Upstream commit 729e55225b1f6225ee7a2a358d5141a3264627c4 ]
This erratum describes a bug in logic outside the core, so MIDR can't be
used to identify its presence, and reading an SoC-specific revision
register from common arch timer code would be awkward. So, describe it
in the device tree.
Signed-off-by: Ding Tianhong <dingtianhong@xxxxxxxxxx>
Acked-by: Rob Herring <robh@xxxxxxxxxx>
Signed-off-by: Mark Rutland <mark.rutland@xxxxxxx>
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/arm/arch_timer.txt | 6 ++++++
1 file changed, 6 insertions(+)
--- a/Documentation/devicetree/bindings/arm/arch_timer.txt
+++ b/Documentation/devicetree/bindings/arm/arch_timer.txt
@@ -31,6 +31,12 @@ to deliver its interrupts via SPIs.
This also affects writes to the tval register, due to the implicit
counter read.
+- hisilicon,erratum-161010101 : A boolean property. Indicates the
+ presence of Hisilicon erratum 161010101, which says that reading the
+ counters is unreliable in some cases, and reads may return a value 32
+ beyond the correct value. This also affects writes to the tval
+ registers, due to the implicit counter read.
+
** Optional properties:
- arm,cpu-registers-not-fw-configured : Firmware does not initialize
Patches currently in stable-queue which might be from dingtianhong@xxxxxxxxxx are
queue-4.9/clocksource-drivers-arm_arch_timer-add-dt-binding-for-hisilicon-161010101-erratum.patch