Commit 528e2d31 authored by Tim Harvey's avatar Tim Harvey Committed by Shawn Guo
Browse files

arm64: dts: imx8mp-venice-gw71xx: fix TPM SPI frequency 

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: 1a8f6ff6 ("arm64: dts: imx8mp-venice-gw71xx: add TPM device")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarTim Harvey <tharvey@gateworks.com>
Link: https://lore.kernel.org/stable/20250523173723.4167474-1-tharvey%40gateworks.com


Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 19272b37

arch/arm64/boot/dts/freescale/imx8mp-venice-gw71xx.dtsi

+1 −1
Original line number Diff line number Diff line
@@ -70,7 +70,7 @@ &ecspi2 { 
	tpm@1 {

		compatible = "atmel,attpm20p", "tcg,tpm_tis-spi";

		reg = <0x1>;

		spi-max-frequency = <36000000>;

		spi-max-frequency = <25000000>;

	};

};