HTE_TECTRL
tegra_hte_writel(gs, HTE_TECTRL, 0);
tegra_hte_writel(hte_dev, HTE_TECTRL, val);
tegra_hte_writel(gs, HTE_TECTRL, gs->conf_rval);
gs->conf_rval = tegra_hte_readl(gs, HTE_TECTRL);