diff options
| author | Tim Harvey <tharvey@gateworks.com> | 2025-06-04 15:56:29 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-07-24 08:56:25 +0200 |
| commit | b0c7f2984356b83c4f14b56622ebee18f1ac7d85 (patch) | |
| tree | a14ca02c936644775f4372e6b7b3c3db1f66aec2 | |
| parent | 9650e49db619c3aa5732ba2028481ad3de366352 (diff) | |
arm64: dts: imx8mp-venice-gw73xx: fix TPM SPI frequency
commit 1fc02c2086003c5fdaa99cde49a987992ff1aae4 upstream.
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: 2b3ab9d81ab4 ("arm64: dts: imx8mp-venice-gw73xx: add TPM device")
Cc: stable@vger.kernel.org
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mp-venice-gw73xx.dtsi | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-venice-gw73xx.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-venice-gw73xx.dtsi index e2b5e7ac3e46..5eb114d2360a 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-venice-gw73xx.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp-venice-gw73xx.dtsi @@ -122,7 +122,7 @@ tpm@1 { compatible = "atmel,attpm20p", "tcg,tpm_tis-spi"; reg = <0x1>; - spi-max-frequency = <36000000>; + spi-max-frequency = <25000000>; }; }; |