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

[Tim Harvey]

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")
Signed-off-by: Tim Harvey <tharvey at gateworks.com>
---
 arch/arm64/boot/dts/freescale/imx8mp-venice-gw71xx.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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 @@ &ecspi2 {
 	tpm at 1 {
 		compatible = "atmel,attpm20p", "tcg,tpm_tis-spi";
 		reg = <0x1>;
-		spi-max-frequency = <36000000>;
+		spi-max-frequency = <25000000>;
 	};
 };
 
-- 
2.25.1