linux-kernel - Re: [PATCH v3 2/2] arm64: dts: ti: k3-am64-main: Switch ICSSG clock to core clock

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Message-ID: <97fbcaf0-ccd5-44d8-8600-f0e0c5c36d41@kernel.org>
Date: Thu, 21 Nov 2024 15:13:15 +0200
From: Roger Quadros <rogerq@...nel.org>
To: MD Danish Anwar <danishanwar@...com>, conor+dt@...nel.org,
 krzk+dt@...nel.org, robh@...nel.org, ssantosh@...nel.org, nm@...com,
 Vignesh Raghavendra <vigneshr@...com>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org, s-anna@...com, kristo@...nel.org, srk@...com
Subject: Re: [PATCH v3 2/2] arm64: dts: ti: k3-am64-main: Switch ICSSG clock
 to core clock



On 13/11/2024 13:09, MD Danish Anwar wrote:
> ICSSG has 7 available clocks per instance. Add all the cloks to ICSSG
> nodes. ICSSG currently uses ICSSG_ICLK (clk id 20) which operates at
> 250MHz. Switch ICSSG clock to ICSSG_CORE clock (clk id 0) which operates at
> 333MHz.
> 
> ICSSG_CORE clock will help get the most out of ICSSG as more cycles are
> needed to fully support all ICSSG features.
> 
> This commit also changes assigned-clock-parents of coreclk-mux to
> ICSSG_CORE clock from ICSSG_ICLK.
> 
> Performance update in dual mac mode
>   With ICSSG_CORE Clk @ 333MHz
>     Tx throughput - 934 Mbps
>     Rx throughput - 914 Mbps,
> 
>   With ICSSG_ICLK clk @ 250MHz,
>     Tx throughput - 920 Mbps
>     Rx throughput - 706 Mbps
> 
> Signed-off-by: MD Danish Anwar <danishanwar@...com>

It would be nice if you could send patches to update
corresponding nodes in am65 and j721e platforms as well
else we will start getting dtbs_check errors.

Reviewed-by: Roger Quadros <rogerq@...nel.org>