From 6d3d76f877ca061911343d5d1650458906fdf0ea Mon Sep 17 00:00:00 2001 From: Mugunthan V N Date: Tue, 18 Jun 2013 15:04:35 +0530 Subject: [PATCH] drivers: net: cpsw: fix cpsw clock gating issue across suspend/resume Due to some hardware integration issue, CPSW sliver modules requires a reset across suspend/resume cycle for a successful clock gating to CPGMAC (CPSW and Davinci MDIO) in AM335x PG1.0. This issue is fixed in PG2.x, though to support suspend/resume on PG1.0 this reset is required. Signed-off-by: Mugunthan V N Signed-off-by: David S. Miller --- drivers/net/ethernet/ti/cpsw.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 2fd69db3c09f..e66a20223abb 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -1976,6 +1976,8 @@ static int cpsw_suspend(struct device *dev) if (netif_running(ndev)) cpsw_ndo_stop(ndev); + soft_reset("sliver 0", &priv->slaves[0].sliver->soft_reset); + soft_reset("sliver 1", &priv->slaves[1].sliver->soft_reset); pm_runtime_put_sync(&pdev->dev); return 0; -- 2.20.1