hello sunyanyan19860,
may I know what’s the use-case of your implementation?
you may also check reference device tree for using TCA9548 as camera i2c mux,
for example,
$l4t-r32.2/public_sources/hardware/nvidia/platform/t18x/common/kernel-dts/t18x-common-platforms/tegra186-quill-camera-e3333-a00.dtsi