linux-kernel - [PATCH v4 0/4] clocksource: Add MCT support for ARTPEC-8

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Message-ID: <20220609112738.359385-1-vincent.whitchurch@axis.com>
Date:   Thu, 9 Jun 2022 13:27:34 +0200
From:   Vincent Whitchurch <vincent.whitchurch@...s.com>
To:     <krzysztof.kozlowski@...aro.org>, <tglx@...utronix.de>,
        <daniel.lezcano@...aro.org>
CC:     <kernel@...s.com>,
        Vincent Whitchurch <vincent.whitchurch@...s.com>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-samsung-soc@...r.kernel.org>, <alim.akhtar@...sung.com>,
        <devicetree@...r.kernel.org>, <robh+dt@...nel.org>
Subject: [PATCH v4 0/4] clocksource: Add MCT support for ARTPEC-8

This series add supports for the timer block on ARTPEC-8.  The block itself is
fully compatible with the existing exynos4210-mct driver.  The ARTPEC-8 SoC
uses this block from two separate processors running Linux (AMP) so it needs
some extra code to allow this sharing.

v4:
- Rebase on v5.19-rc1 where all pre-requisites are merged
- Minor rework of patch 4 as requested, see patch for details

v3:
- Split and rename devicetree properties
- Add vendor prefix to devicetree properties
- Change descriptions of properties to hopefully describe hardware
- Remove addition of more global variables to the driver

v2:
- The series is now rebased on top of Krzysztof's patch "dt-bindings: timer:
  exynos4210-mct: describe known hardware and its interrupts".
- Combine the Kconfig change and the local timer change into one series
- Use devicetree property rather than module parameter for the local timer handling
- Add specific compatible with the correct number of interrupts.

Cc: linux-kernel@...r.kernel.org
Cc: linux-arm-kernel@...ts.infradead.org

Cc: linux-samsung-soc@...r.kernel.org
Cc: alim.akhtar@...sung.com

Cc: devicetree@...r.kernel.org
Cc: robh+dt@...nel.org

Vincent Whitchurch (4):
  dt-bindings: timer: exynos4210-mct: Add ARTPEC-8 MCT support
  clocksource/drivers/exynos_mct: Support frc-shared property
  clocksource/drivers/exynos_mct: Support local-timers property
  clocksource/drivers/exynos_mct: Enable building on ARTPEC

 .../timer/samsung,exynos4210-mct.yaml         | 26 ++++++
 drivers/clocksource/Kconfig                   |  2 +-
 drivers/clocksource/exynos_mct.c              | 83 +++++++++++++++++--
 3 files changed, 101 insertions(+), 10 deletions(-)


base-commit: f2906aa863381afb0015a9eb7fefad885d4e5a56
-- 
2.34.1