TEGRA20_AC97_STATUS1
regmap_read(workdata->regmap, TEGRA20_AC97_STATUS1, &readback);
case TEGRA20_AC97_STATUS1:
case TEGRA20_AC97_STATUS1:
regmap_read(workdata->regmap, TEGRA20_AC97_STATUS1, &readback);
regmap_read(workdata->regmap, TEGRA20_AC97_STATUS1, &readback);