ICE1712_DELTA_DFS
tmp2 = tmp & ~ICE1712_DELTA_DFS;
tmp2 |= ICE1712_DELTA_DFS;
tmp2 = tmp & ~ICE1712_DELTA_DFS;
tmp2 |= ICE1712_DELTA_DFS;
tmp = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA) & ~ICE1712_DELTA_DFS;
tmp |= ICE1712_DELTA_DFS;