linux-kernel - Re: [PATCH v1 03/18] arm64: dts: mediatek: mt6795: xperia-m5: Enable Frequency Hopping

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Message-ID: <ZB9jlTsEb0Clf1zu@duo.ucw.cz>
Date:   Sat, 25 Mar 2023 22:11:49 +0100
From:   Pavel Machek <pavel@....cz>
To:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Cc:     matthias.bgg@...il.com, qii.wang@...iatek.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, jassisinghbrar@...il.com,
        houlong.wei@...iatek.com, linux-i2c@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, kernel@...labora.com,
        phone-devel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht
Subject: Re: [PATCH v1 03/18] arm64: dts: mediatek: mt6795: xperia-m5: Enable
 Frequency Hopping

On Fri 2023-03-24 18:54:41, AngeloGioacchino Del Regno wrote:
> Enable FHCTL with Spread Spectrum for MAINPLL, MPLL and MSDCPLL
> as found on the downstream kernel for this smartphone.
> Which one to enable, and at what SSC percentage, was found by
> dumping the debugging data from a running downstream kernel and
> checking the downstream code.

What advantages does this have? Lower EMI emissions?

Best regards,
							Pavel
							-- 
People of Russia, stop Putin before his war on Ukraine escalates.

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