github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-08-02 05:12:01 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

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

Browse Source 
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: 1a8f6ff6a2 ("arm64: dts: imx8mp-venice-gw71xx: add TPM device")
Cc: stable@vger.kernel.org
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Link: https://lore.kernel.org/stable/20250523173723.4167474-1-tharvey%40gateworks.com
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Tim Harvey 2025-06-04 15:56:27 -07:00 committed by Shawn Guo
parent 19272b37aa
commit 528e2d3125
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm64/boot/dts/freescale/imx8mp-venice-gw71xx.dtsi
View File

@ -70,7 +70,7 @@ &ecspi2 {
tpm@1 {
compatible = "atmel,attpm20p", "tcg,tpm_tis-spi";
reg = <0x1>;
spi-max-frequency = <36000000>;
spi-max-frequency = <25000000>;
};
};