linux-kernel - Re: [PATCH v4 3/3] clocksource: Add Low Power STM32 timers driver

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Message-ID: <1cd9e136-ebdd-f604-9ed8-1f21d4c70adb@st.com>
Date:   Fri, 13 Mar 2020 13:45:09 +0000
From:   Benjamin GAIGNARD <benjamin.gaignard@...com>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        "lee.jones@...aro.org" <lee.jones@...aro.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "mcoquelin.stm32@...il.com" <mcoquelin.stm32@...il.com>,
        Alexandre TORGUE <alexandre.torgue@...com>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        Fabrice GASNIER <fabrice.gasnier@...com>
CC:     "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-stm32@...md-mailman.stormreply.com" 
        <linux-stm32@...md-mailman.stormreply.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Benjamin Gaignard <benjamin.gaignard@...aro.org>,
        Pascal PAILLET-LME <p.paillet@...com>
Subject: Re: [PATCH v4 3/3] clocksource: Add Low Power STM32 timers driver



On 3/13/20 2:34 PM, Daniel Lezcano wrote:
> Hi Benjamin,
>
> On 20/02/2020 12:05, Daniel Lezcano wrote:
>
> [ ... ]
>
>>> It has be exclusive and that exclude the problem you describe above.
>> Ok, the regmap_write is not a free operation and in this case you can
>> get rid of all the regmap-ish in this driver.
> Are you planning to send the non-regmap version?
No because the regmap is inherited from the mfd parent.
I could use fast-io to improve that.

Benjamin
>
>
>