linux-kernel - Re: [PATCH v4 0/2] add Microchip PIT64B timer

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Message-ID: <0daf9d0a-5747-5aa0-a9d2-8e995ba44689@linaro.org>
Date:   Mon, 16 Dec 2019 10:16:59 +0100
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Claudiu Beznea <claudiu.beznea@...rochip.com>, robh+dt@...nel.org,
        mark.rutland@....com, nicolas.ferre@...rochip.com,
        alexandre.belloni@...tlin.com, ludovic.desroches@...rochip.com,
        tglx@...utronix.de
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 0/2] add Microchip PIT64B timer

On 13/12/2019 12:19, Claudiu Beznea wrote:
> Hi,
> 
> This series adds driver for Microchip PIT64B timer.
> Timer could be used in continuous or oneshot mode. It has 2x32 bit registers
> to emulate a 64 bit timer. The timer's period could be configured via LSB_PR
> and MSB_PR registers. The current timer's value could be checked via TLSB and
> TMSB registers. When (TMSB << 32) | TLSB value reach the (MSB_PR << 32) | LSB_PR
> interrupt is raised. If in contiuous mode the TLSB and TMSB resets and restart
> counting.
> 
> This drivers uses PIT64B capabilities for clocksource and clockevent.
> The first requested PIT64B timer is used for clockevent. The second one is used
> for clocksource. Individual PIT64B hardware resources were used for clocksource
> and clockevent to be able to support high resolution timers with this PIT64B
> implementation.

I've applied the patches.

Thanks

 -- Daniel

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