omap_aes_write_mask
omap_aes_write_mask(dd, AES_REG_CTRL(dd), val, AES_REG_CTRL_MASK);
omap_aes_write_mask(dd, AES_REG_MASK(dd), val, mask);
omap_aes_write_mask(dd, AES_REG_MASK(dd), 0, mask);