From: Kazuya Mizuguchi <kazuya.mizuguchi.ks@xxxxxxxxxxx>
This patch fixes the problem that ptp4l command does not work after
suspend and resume.
Add the initial setting in ravb_suspend() and ravb_resume(),
because ptp does not work.
Fixes: a0d2f20650e8 ("Renesas Ethernet AVB PTP clock driver")
Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@xxxxxxxxxxx>
Signed-off-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
---
drivers/net/ethernet/renesas/ravb_main.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index b311b1ac1286..dbde3d11458b 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -2295,6 +2295,9 @@ static int __maybe_unused ravb_suspend(struct device *dev)
else
ret = ravb_close(ndev);
+ if (priv->chip_id != RCAR_GEN2)
+ ravb_ptp_stop(ndev);
+
return ret;
}
@@ -2302,6 +2305,7 @@ static int __maybe_unused ravb_resume(struct device *dev)
{
struct net_device *ndev = dev_get_drvdata(dev);
struct ravb_private *priv = netdev_priv(ndev);
+ struct platform_device *pdev = priv->pdev;
int ret = 0;
/* If WoL is enabled set reset mode to rearm the WoL logic */
@@ -2330,6 +2334,9 @@ static int __maybe_unused ravb_resume(struct device *dev)
/* Restore descriptor base address table */
ravb_write(ndev, priv->desc_bat_dma, DBAT);
+ if (priv->chip_id != RCAR_GEN2)
+ ravb_ptp_init(ndev, pdev);
+
if (netif_running(ndev)) {
if (priv->wol_enabled) {
ret = ravb_wol_restore(ndev);
--
2.11.0
