where can find the compatible device info in kernel

[Lemiron24]

I see below code in umd driver:
static const struct of_device_id nvdla_of_match[] = {
{
.compatible = "nvidia,nvdla_os_initial",
.data = &nvdla_config_os_initial,
},
{
.compatible = "nvidia,nvdla_2",
.data = &nvdla_config_small,
},
{ },
};

could you tell me which dts file for this?

thanks