From: Hans de Goede <hdegoede@redhat.com>
Date: Wed, 26 Sep 2018 20:12:39 +0000 (+0200)
Subject: r8169: Disable clk during suspend / resume
X-Git-Tag: v4.19~103^2~26
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ac8bd9e13be22a3d24bfc80972d4688e3e50e457;p=platform%2Fkernel%2Flinux-rpi.git

r8169: Disable clk during suspend / resume

Disable the clk during suspend to save power. Note that tp->clk may be
NULL, the clk core functions handle this without problems.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Carlo Caione <carlo@endlessm.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index ab30aae..d6b53f5 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -6869,8 +6869,10 @@ static int rtl8169_suspend(struct device *device)
 {
 	struct pci_dev *pdev = to_pci_dev(device);
 	struct net_device *dev = pci_get_drvdata(pdev);
+	struct rtl8169_private *tp = netdev_priv(dev);
 
 	rtl8169_net_suspend(dev);
+	clk_disable_unprepare(tp->clk);
 
 	return 0;
 }
@@ -6898,6 +6900,9 @@ static int rtl8169_resume(struct device *device)
 {
 	struct pci_dev *pdev = to_pci_dev(device);
 	struct net_device *dev = pci_get_drvdata(pdev);
+	struct rtl8169_private *tp = netdev_priv(dev);
+
+	clk_prepare_enable(tp->clk);
 
 	if (netif_running(dev))
 		__rtl8169_resume(dev);