linux-kernel - Re: [PATCH v2 1/4] arm64: dts: imx8mp-venice-gw71xx: fix TPM SPI frequency

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Message-ID: <aGPnD7J43tjoHYkM@dragon>
Date: Tue, 1 Jul 2025 21:47:59 +0800
From: Shawn Guo <shawnguo2@...h.net>
To: Tim Harvey <tharvey@...eworks.com>
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, imx@...ts.linux.dev,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>, stable@...r.kernel.org
Subject: Re: [PATCH v2 1/4] arm64: dts: imx8mp-venice-gw71xx: fix TPM SPI
 frequency

On Wed, Jun 04, 2025 at 03:56:27PM -0700, Tim Harvey wrote:
> The IMX8MPDS Table 37 [1] shows that the max SPI master read frequency
> depends on the pins the interface is muxed behind with ECSPI2
> muxed behind ECSPI2 supporting up to 25MHz.
> 
> Adjust the spi-max-frequency based on these findings.
> 
> [1] https://www.nxp.com/webapp/Download?colCode=IMX8MPIEC
> 
> Fixes: 1a8f6ff6a291 ("arm64: dts: imx8mp-venice-gw71xx: add TPM device")
> Cc: stable@...r.kernel.org
> Signed-off-by: Tim Harvey <tharvey@...eworks.com>

Just to be clear, "b4 shazam" was smart enough to pick this v2 instead.
Still it would be helpful to leave a comment on the old version saying
there is a newer version superseding the old. 

Shawn