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device-tree: jh7110-starfive-visionfive-2-framework.dts
Adjust “google,cros-ec-spi-pre-delay” to 10us. When the delay parameter is greater than 10us, the spi-pl022 driver spi_transfer_delay_exec function will call usleep_range, and the delay time error will be larger, which will lead to EC communication failure. Signed-off-by: yang.wang <yang.wang@deepcomputing.io>
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arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2-framework.dts

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -486,7 +486,7 @@
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pl022,com-mode = <1>;
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spi-max-frequency = <1000000>;//<8250000>;
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reg = <0>;
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google,cros-ec-spi-pre-delay = <30>;
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google,cros-ec-spi-pre-delay = <10>;
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google,cros-ec-spi-msg-delay = <10>;
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status = "okay";
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};

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