linux-kernel - [ 132/147] r8169: Config1 is read-only on 8168c and later.

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Message-Id: <20121014143551.619194043@decadent.org.uk>
Date:	Sun, 14 Oct 2012 15:37:45 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Francois Romieu <romieu@...zoreil.com>,
	Hayes Wang <hayeswang@...ltek.com>
Subject: [ 132/147] r8169: Config1 is read-only on 8168c and later.

3.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Francois Romieu <romieu@...zoreil.com>

commit 851e60221926a53344b4227879858bef841b0477 upstream.

Suggested by Hayes.

Signed-off-by: Francois Romieu <romieu@...zoreil.com>
Cc: Hayes Wang <hayeswang@...ltek.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/net/ethernet/realtek/r8169.c |   15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 71393ea..9b0b00b 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -1396,7 +1396,6 @@ static void __rtl8169_set_wol(struct rtl8169_private *tp, u32 wolopts)
 		u16 reg;
 		u8  mask;
 	} cfg[] = {
-		{ WAKE_ANY,   Config1, PMEnable },
 		{ WAKE_PHY,   Config3, LinkUp },
 		{ WAKE_MAGIC, Config3, MagicPacket },
 		{ WAKE_UCAST, Config5, UWF },
@@ -1404,16 +1403,28 @@ static void __rtl8169_set_wol(struct rtl8169_private *tp, u32 wolopts)
 		{ WAKE_MCAST, Config5, MWF },
 		{ WAKE_ANY,   Config5, LanWake }
 	};
+	u8 options;
 
 	RTL_W8(Cfg9346, Cfg9346_Unlock);
 
 	for (i = 0; i < ARRAY_SIZE(cfg); i++) {
-		u8 options = RTL_R8(cfg[i].reg) & ~cfg[i].mask;
+		options = RTL_R8(cfg[i].reg) & ~cfg[i].mask;
 		if (wolopts & cfg[i].opt)
 			options |= cfg[i].mask;
 		RTL_W8(cfg[i].reg, options);
 	}
 
+	switch (tp->mac_version) {
+	case RTL_GIGA_MAC_VER_01 ... RTL_GIGA_MAC_VER_17:
+		options = RTL_R8(Config1) & ~PMEnable;
+		if (wolopts)
+			options |= PMEnable;
+		RTL_W8(Config1, options);
+		break;
+	default:
+		break;
+	}
+
 	RTL_W8(Cfg9346, Cfg9346_Lock);
 }
 


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