linux-kernel - Re: [PATCH net-next v2] net: stmmac: dwmac-qcom-ethqos: Update link clock rate only for RGMII

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Date: Tue, 27 Feb 2024 00:39:19 +0100
From: Andrew Lunn <andrew@...n.ch>
To: Sarosh Hasan <quic_sarohasa@...cinc.com>
Cc: Vinod Koul <vkoul@...nel.org>, Andy Gross <agross@...nel.org>,
	Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konrad.dybcio@...aro.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Jose Abreu <joabreu@...opsys.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>, netdev@...r.kernel.org,
	linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-stm32@...md-mailman.stormreply.com,
	Prasad Sodagudi <psodagud@...cinc.com>,
	Andrew Halaney <ahalaney@...hat.com>, Rob Herring <robh@...nel.org>,
	kernel@...cinc.com, Sneh Shah <quic_snehshah@...cinc.com>,
	Suraj Jaiswal <quic_jsuraj@...cinc.com>
Subject: Re: [PATCH net-next v2] net: stmmac: dwmac-qcom-ethqos: Update link
 clock rate only for RGMII

On Mon, Feb 26, 2024 at 03:12:26PM +0530, Sarosh Hasan wrote:
> Updating link clock rate for different speeds is only needed when
> using RGMII, as that mode requires changing clock speed when the link
> speed changes. Let's restrict updating the link clock speed in
> ethqos_update_link_clk() to just RGMII. Other modes such as SGMII
> only need to enable the link clock (which is already done in probe).
> 
> Signed-off-by: Sarosh Hasan <quic_sarohasa@...cinc.com>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew