linux-kernel - Re: [PATCH v23 00/11] acpi, clocksource: add GTDT driver and GTDT support in arm_arch

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Date:   Tue, 4 Apr 2017 15:39:04 -0500
From:   Timur Tabi <timur@...eaurora.org>
To:     fu.wei@...aro.org, rjw@...ysocki.net, lenb@...nel.org,
        daniel.lezcano@...aro.org, tglx@...utronix.de,
        marc.zyngier@....com, mark.rutland@....com,
        lorenzo.pieralisi@....com, sudeep.holla@....com,
        hanjun.guo@...aro.org
Cc:     linux-arm-kernel@...ts.infradead.org, linaro-acpi@...ts.linaro.org,
        linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
        rruigrok@...eaurora.org, harba@...eaurora.org, cov@...eaurora.org,
        graeme.gregory@...aro.org, al.stone@...aro.org, jcm@...hat.com,
        wei@...hat.com, arnd@...db.de, catalin.marinas@....com,
        will.deacon@....com, Suravee.Suthikulpanit@....com,
        leo.duran@....com, wim@...ana.be, linux@...ck-us.net,
        linux-watchdog@...r.kernel.org, tn@...ihalf.com,
        christoffer.dall@...aro.org, julien.grall@....com
Subject: Re: [PATCH v23 00/11] acpi, clocksource: add GTDT driver and GTDT
 support in arm_arch_timer

On 03/31/2017 12:50 PM, fu.wei@...aro.org wrote:
> This patchset:
>     (1)Preparation for adding GTDT support in arm_arch_timer:
>         1. Introduce a MMIO CNTFRQ helper.
>         2. separate out device-tree code from arch_timer_detect_rate
>         3. remove arch_timer_detect_rate use arch_timer_*get_cntfrq directly
>         4. Refactor arch_timer_needs_probing, and move it into DT init call
>         5. Introduce some new structs and refactor the MMIO timer init code
>         for reusing some common code.
> 
>     (2)Introduce ACPI GTDT parser: drivers/acpi/arm64/acpi_gtdt.c
>     Parse all kinds of timer in GTDT table of ACPI:arch timer,
>     memory-mapped timer and SBSA Generic Watchdog timer.
>     This driver can help to simplify all the relevant timer drivers,
>     and separate all the ACPI GTDT knowledge from them.
> 
>     (3)Simplify ACPI code for arm_arch_timer
> 
>     (4)Add GTDT support for ARM memory-mapped timer.
> 
> This patchset has been tested on the following platforms with ACPI enabled:
>     (1)ARM Foundation v8 model
> 
> Changelog:
> v23: https://lkml.org/lkml/2017/3/31/

v23:

Tested-by: Timur Tabi <timur@...eaurora.org>

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