[RESEND PATCH v2 06/11] net: dwc_eth_qos: make eqos_start_clks and eqos_stop_clks optional

[David Wu]

If there are definitions for eqos_start_clks and eqos_stop_clks,
then call these callback function.

Signed-off-by: David Wu <david.wu at rock-chips.com>
---

Changes in v2:
- None

 drivers/net/dwc_eth_qos.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/net/dwc_eth_qos.c b/drivers/net/dwc_eth_qos.c
index e503be5b4b..295707cbb0 100644
--- a/drivers/net/dwc_eth_qos.c
+++ b/drivers/net/dwc_eth_qos.c
@@ -1184,10 +1184,12 @@ static int eqos_init(struct udevice *dev)
 
 	debug("%s(dev=%p):\n", __func__, dev);
 
-	ret = eqos->config->ops->eqos_start_clks(dev);
-	if (ret < 0) {
-		pr_err("eqos_start_clks() failed: %d", ret);
-		goto err;
+	if (eqos->config->ops->eqos_start_clks) {
+		ret = eqos->config->ops->eqos_start_clks(dev);
+		if (ret < 0) {
+			pr_err("eqos_start_clks() failed: %d", ret);
+			goto err;
+		}
 	}
 
 	ret = eqos->config->ops->eqos_start_resets(dev);
@@ -1277,7 +1279,8 @@ err_shutdown_phy:
 err_stop_resets:
 	eqos->config->ops->eqos_stop_resets(dev);
 err_stop_clks:
-	eqos->config->ops->eqos_stop_clks(dev);
+	if (eqos->config->ops->eqos_stop_clks)
+		eqos->config->ops->eqos_stop_clks(dev);
 err:
 	pr_err("FAILED: %d", ret);
 	return ret;
@@ -1576,7 +1579,8 @@ static void eqos_stop(struct udevice *dev)
 		phy_shutdown(eqos->phy);
 	}
 	eqos->config->ops->eqos_stop_resets(dev);
-	eqos->config->ops->eqos_stop_clks(dev);
+	if (eqos->config->ops->eqos_stop_clks)
+		eqos->config->ops->eqos_stop_clks(dev);
 
 	debug("%s: OK\n", __func__);
 }
-- 
2.19.1