single_12bit
{.compatible = "ti,dac121c081", .data = &dac5571_spec[single_12bit] },
{.compatible = "ti,dac7571", .data = &dac5571_spec[single_12bit] },
[single_12bit] = {.num_channels = 1, .resolution = 12},
{"dac121c081", (kernel_ulong_t)&dac5571_spec[single_12bit] },
{"dac7571", (kernel_ulong_t)&dac5571_spec[single_12bit] },