Gpio expander 9539 failing on custom board with TX2 4GB

gpio expander 9539 is failing on custom TX2 but same is passing on Tx2 EVK,
is it a regulator issue that we need to take care for custom board or any thing else.

[ 0.523459] tegra-i2c 3160000.i2c: no acknowledge from address 0x74
[ 0.523503] pca953x 0-0074: failed reading register
[ 0.523551] pca953x: probe of 0-0074 failed with error -121
[ 0.523878] tegra-i2c 3160000.i2c: no acknowledge from address 0x77
[ 0.523919] pca953x 0-0077: failed reading register
[ 0.523957] pca953x: probe of 0-0077 failed with error -121
[ 0.533583] max77620 4-003c: PMIC Version OTP:0x4D and ES:0x1
[ 0.537575] vddio-ddr: at 1125 mV
[ 0.541442] avdd_dsi_csi: 1200 mV
[ 0.545424] vdd-1v8: 1800 mV
[ 0.549424] vdd-3v3-sys: 3300 mV

hello anupam.kumar,

it should be regulator issue, please review your board configurations.
thanks