diff options
| author | Tim Harvey <tharvey@gateworks.com> | 2025-06-04 15:56:27 -0700 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2025-06-19 15:49:08 +0800 |
| commit | 528e2d3125ad8d783e922033a0a8e2adb17b400e (patch) | |
| tree | 946da8eb062f5e7b94404d6456217f59c325b2aa | |
| parent | 19272b37aa4f83ca52bdf9c16d5d81bdd1354494 (diff) | |
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: 1a8f6ff6a291 ("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>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mp-venice-gw71xx.dtsi | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-venice-gw71xx.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-venice-gw71xx.dtsi index 2f740d74707b..4bf818873fe3 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-venice-gw71xx.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp-venice-gw71xx.dtsi @@ -70,7 +70,7 @@ tpm@1 { compatible = "atmel,attpm20p", "tcg,tpm_tis-spi"; reg = <0x1>; - spi-max-frequency = <36000000>; + spi-max-frequency = <25000000>; }; }; |