MTK_WED_WPDMA_RX_D_PREF_CFG
ret = mtk_wed_poll_busy(dev, MTK_WED_WPDMA_RX_D_PREF_CFG,
wed_clr(dev, MTK_WED_WPDMA_RX_D_PREF_CFG,
mtk_wed_poll_busy(dev, MTK_WED_WPDMA_RX_D_PREF_CFG,
wed_set(dev, MTK_WED_WPDMA_RX_D_PREF_CFG,