linux-kernel - Re: [PATCH 2/3] arm64: dts: ti: k3-am62p-j722s: enable the bxs-4-64

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Message-ID: <20250813184229.dhgpqvi3b6aat46g@managing>
Date: Wed, 13 Aug 2025 13:42:29 -0500
From: Nishanth Menon <nm@...com>
To: Randolph Sapp <rs@...com>
CC: <vigneshr@...com>, <kristo@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>, <d-gole@...com>,
        <afd@...com>, <bb@...com>, <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <detheridge@...com>, <matt.coster@...tec.com>,
        Michael Walle
	<mwalle@...nel.org>
Subject: Re: [PATCH 2/3] arm64: dts: ti: k3-am62p-j722s: enable the bxs-4-64

On 12:56-20250813, Randolph Sapp wrote:
[...]

> >> +		reg = <0x00 0x0fd80000 0x00 0x80000>;
> >> +		clocks = <&k3_clks 237 1>;
> >> +		clock-names = "core";
> >> +		assigned-clocks = <&k3_clks 237 1>;
> >> +		assigned-clock-rates = <800000000>;

btw, as per https://www.ti.com/lit/ds/symlink/tda4aen-q1.pdf (page 86)
720MHz when vdd_core is 0.75v (default)
and 800MHz when vdd_core is 0.85v

0.85v is set in the board dts and higher OPPs are enabled depending on
board capability.

You might want to check the assigned-clock-rates based on data sheet,
default should'nt need a assigned-clock-rate.

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D
https://ti.com/opensource