netdev - [RFC PATCH v2 2/2] net: ethernet: nb8800: Add suspend/resume support

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Message-ID: <9e7bbeac-748d-c837-f621-89ab728d5c2f@free.fr>
Date:   Tue, 1 Aug 2017 18:43:56 +0200
From:   Mason <slash.tmp@...e.fr>
To:     Florian Fainelli <f.fainelli@...il.com>,
        David Miller <davem@...emloft.net>,
        Mans Rullgard <mans@...sr.com>
Cc:     netdev <netdev@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>
Subject: [RFC PATCH v2 2/2] net: ethernet: nb8800: Add suspend/resume support

Wrappers around nb8800_stop and nb8800_open.
---
 drivers/net/ethernet/aurora/nb8800.c | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/aurora/nb8800.c b/drivers/net/ethernet/aurora/nb8800.c
index aa18ea25d91f..607064a6d7a1 100644
--- a/drivers/net/ethernet/aurora/nb8800.c
+++ b/drivers/net/ethernet/aurora/nb8800.c
@@ -1012,7 +1012,6 @@ static int nb8800_stop(struct net_device *dev)
 	netif_stop_queue(dev);
 	napi_disable(&priv->napi);
 
-	nb8800_dma_stop(dev);
 	nb8800_mac_rx(dev, false);
 	nb8800_mac_tx(dev, false);
 
@@ -1526,6 +1525,26 @@ static int nb8800_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static int nb8800_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	struct net_device *dev = platform_get_drvdata(pdev);
+
+	if (netif_running(dev))
+		nb8800_stop(dev);
+
+	return 0;
+}
+
+static int nb8800_resume(struct platform_device *pdev)
+{
+	struct net_device *dev = platform_get_drvdata(pdev);
+
+	if (netif_running(dev))
+		nb8800_open(dev);
+
+	return 0;
+}
+
 static struct platform_driver nb8800_driver = {
 	.driver = {
 		.name		= "nb8800",
@@ -1533,6 +1552,8 @@ static struct platform_driver nb8800_driver = {
 	},
 	.probe	= nb8800_probe,
 	.remove	= nb8800_remove,
+	.suspend = nb8800_suspend,
+	.resume = nb8800_resume,
 };
 
 module_platform_driver(nb8800_driver);
-- 
2.11.0