wfx_write32
ret = wfx_write32(wdev, WFX_REG_BASE_ADDR, addr);
ret = wfx_write32(wdev, WFX_REG_CONFIG, cfg | prefetch);
ret = wfx_write32(wdev, WFX_REG_BASE_ADDR, addr);
ret = wfx_write32(wdev, reg, val);
ret = wfx_write32(wdev, reg, val_w);