linux-kernel - Re: [PATCH RFC/RFT net-next 2/3] net: stmmac: dwmac-qcom-ethqos: Use max frequency for clk_ptp

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Message-ID: <ZK/KmtfDPE9iMlO0@corigine.com>
Date:   Thu, 13 Jul 2023 10:57:46 +0100
From:   Simon Horman <simon.horman@...igine.com>
To:     Andrew Halaney <ahalaney@...hat.com>
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-stm32@...md-mailman.stormreply.com, netdev@...r.kernel.org,
        mcoquelin.stm32@...il.com, pabeni@...hat.com, kuba@...nel.org,
        edumazet@...gle.com, davem@...emloft.net, joabreu@...opsys.com,
        alexandre.torgue@...s.st.com, peppe.cavallaro@...com,
        bhupesh.sharma@...aro.org, vkoul@...nel.org,
        linux-arm-msm@...r.kernel.org, jsuraj@....qualcomm.com
Subject: Re: [PATCH RFC/RFT net-next 2/3] net: stmmac: dwmac-qcom-ethqos: Use
 max frequency for clk_ptp_ref

On Tue, Jul 11, 2023 at 03:35:31PM -0500, Andrew Halaney wrote:
> Qualcomm clocks can set their frequency to a variety of levels
> generally. Let's use the max for clk_ptp_ref to ensure the best
> timestamping resolution possible.
> 
> Without this, the default value of the clock is used. For sa8775p-ride
> this is 19.2 MHz, far less than the 230.4 MHz possible.
> 
> Signed-off-by: Andrew Halaney <ahalaney@...hat.com>

Reviewed-by: Simon Horman <simon.horman@...igine.com>