linux-kernel - Re: [PATCH v3 3/4] ARM: dts: exynos: map 0x10000 SFR instead of 0x100 in DMC Exynos5422

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Message-ID: <20191002172931.GE21463@kozik-lap>
Date:   Wed, 2 Oct 2019 19:29:31 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Lukasz Luba <l.luba@...tner.samsung.com>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, b.zolnierkie@...sung.com,
        kgene@...nel.org, mark.rutland@....com, cw00.choi@...sung.com,
        kyungmin.park@...sung.com, m.szyprowski@...sung.com,
        s.nawrocki@...sung.com, myungjoo.ham@...sung.com,
        robh+dt@...nel.org, willy.mh.wolff.ml@...il.com
Subject: Re: [PATCH v3 3/4] ARM: dts: exynos: map 0x10000 SFR instead of
 0x100 in DMC Exynos5422

On Wed, Oct 02, 2019 at 08:04:54AM +0200, Lukasz Luba wrote:
> There is a need to access registers at address offset near 0x10000.
> These registers are private DMC performance counters, which might be used
> as interrupt trigger when overflow. Potential usage is to skip polling
> in devfreq framework and switch to interrupt managed bandwidth control.
> 
> Signed-off-by: Lukasz Luba <l.luba@...tner.samsung.com>
> ---
>  arch/arm/boot/dts/exynos5420.dtsi | 2 +-

Thanks, applied but re-ordered with previous one. Applying first
interrupts enables the interrupt mode which does not make sense without
extended mapping

Best regards,
Krzysztof