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This > reverses the asserted and deasserted levels of the reset signal. > > Use GPIO_ACTIVE_LOW to describe the reset polarity correctly. This > fixes the TPM not responding on I2C and the resulting absence of > /dev/tpm0. > > Fixes: 770aba46ea0f ("arm64: dts: imx8mm-var-dart: Add support for Variscite Sonata board") > Co-developed-by: Luan Rafael Carneiro > Signed-off-by: Luan Rafael Carneiro > Signed-off-by: Stefano Radaelli Reviewed-by: Daniel Baluta > --- > arch/arm64/boot/dts/freescale/imx8mm-var-dart-sonata.dts | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-dart-sonata.dts b/arch/arm64/boot/dts/freescale/imx8mm-var-dart-sonata.dts > index 57d29a5c3821..2644b7c1239c 100644 > --- a/arch/arm64/boot/dts/freescale/imx8mm-var-dart-sonata.dts > +++ b/arch/arm64/boot/dts/freescale/imx8mm-var-dart-sonata.dts > @@ -259,7 +259,7 @@ st33ktpm2xi2c: tpm@2e { > compatible = "st,st33ktpm2xi2c", "tcg,tpm-tis-i2c"; > reg = <0x2e>; > label = "tpm"; > - reset-gpios = <&pca9534 0 GPIO_ACTIVE_HIGH>; > + reset-gpios = <&pca9534 0 GPIO_ACTIVE_LOW>; > }; > }; >