lkml.org 
[lkml]   [2021]   [Jun]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH 0/2] Use Exynos-MCT timer as wakeup for Arm arch timer
Date
Hi all,

These two patches build on top of my other series for adding per-cpu
wakeup timers [1] which is currently queued in -tip [2].

The basic idea is to prefer the Arm architected timer, even when
CLOCK_EVT_FEAT_C3STOP is set, as long as we have another timer which can
be used for the per-cpu wakeup. These patches use Exynos-MCT as an
example, since that driver currently goes out of its way to prevent use
of the Arm architected timer due to issues with a 32-bit SoC.

Cheers,

Will

[1] https://lore.kernel.org/lkml/20210524221818.15850-1-will@kernel.org/
[2] https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/log/?h=timers/core

Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Cc: Chanwoo Choi <cw00.choi@samsung.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>

--->8

Will Deacon (2):
clocksource/drivers/exynos_mct: Prioritise Arm arch timer on arm64
clocksource/drivers/exynos_mct: Mark MCT device as
CLOCK_EVT_FEAT_PERCPU

drivers/clocksource/exynos_mct.c | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)

--
2.32.0.rc1.229.g3e70b5a671-goog

\
 
 \ /
  Last update: 2021-06-08 17:44    [W:1.897 / U:0.684 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site