qca8k_read
ret = qca8k_read(priv, QCA8K_REG_PORT_STATUS(port), ®);
ret = qca8k_read(priv, QCA8K_REG_SGMII_CTRL, &val);
ret = qca8k_read(priv, QCA8K_REG_MASK_CTRL, &val);
ret = qca8k_read(priv, QCA8K_REG_ATU_FUNC, ®);
ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC1, ®);
ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC0, ®);
ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC0, ®);
ret = qca8k_read(priv, reg, &val);
ret = qca8k_read(priv, reg + 4, &hi);
ret = qca8k_read(priv, QCA8K_REG_EEE_CTRL, ®);
int qca8k_read(struct qca8k_priv *priv, u32 reg, u32 *val);