linux-kernel - [PATCH] sky2: Increase D3 delay to sky2 stops working after suspend

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Message-Id: <20180331154203.5562-1-kai.heng.feng@canonical.com>
Date:   Sat, 31 Mar 2018 23:42:03 +0800
From:   Kai-Heng Feng <kai.heng.feng@...onical.com>
To:     mlindner@...vell.com, stephen@...workplumber.org
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Kai-Heng Feng <kai.heng.feng@...onical.com>,
        Stable <stable@...r.kernel.org>
Subject: [PATCH] sky2: Increase D3 delay to sky2 stops working after suspend

The sky2 ethernet stops working after system resume from suspend:
[ 582.852065] sky2 0000:04:00.0: Refused to change power state, currently in D3

The current 150ms delay is not enough, change it to 200ms can solve the
issue.

BugLink: https://bugs.launchpad.net/bugs/1758507
Cc: Stable <stable@...r.kernel.org>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@...onical.com>
---
 drivers/net/ethernet/marvell/sky2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c
index 9fe85300e7b6..5754116a6a4d 100644
--- a/drivers/net/ethernet/marvell/sky2.c
+++ b/drivers/net/ethernet/marvell/sky2.c
@@ -5087,7 +5087,7 @@ static int sky2_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	INIT_WORK(&hw->restart_work, sky2_restart);
 
 	pci_set_drvdata(pdev, hw);
-	pdev->d3_delay = 150;
+	pdev->d3_delay = 200;
 
 	return 0;
 
-- 
2.15.1