netdev - [PATCH 1/3] fixed_phy: handle link-down case

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Message-ID: <559FF5A3.2030607@list.ru>
Date:	Fri, 10 Jul 2015 19:41:07 +0300
From:	Stas Sergeev <stsp@...t.ru>
To:	netdev <netdev@...r.kernel.org>
CC:	Linux kernel <linux-kernel@...r.kernel.org>,
	Sebastien Rannou <mxs@...k.org>,
	Arnaud Ebalard <arno@...isbad.org>,
	Stas Sergeev <stsp@...rs.sourceforge.net>,
	Florian Fainelli <f.fainelli@...il.com>
Subject: [PATCH 1/3] fixed_phy: handle link-down case


Currently fixed_phy driver recognizes only the link-up state.
This simple patch adds an implementation of link-down state.
The actual change is 1-line, the rest is an indentation.

Signed-off-by: Stas Sergeev <stsp@...rs.sourceforge.net>

CC: Florian Fainelli <f.fainelli@...il.com>
CC: netdev@...r.kernel.org
CC: linux-kernel@...r.kernel.org
---
 drivers/net/phy/fixed_phy.c | 99 +++++++++++++++++++++++----------------------
 1 file changed, 50 insertions(+), 49 deletions(-)

diff --git a/drivers/net/phy/fixed_phy.c b/drivers/net/phy/fixed_phy.c
index 1960b46..a5d93cf 100644
--- a/drivers/net/phy/fixed_phy.c
+++ b/drivers/net/phy/fixed_phy.c
@@ -52,58 +52,59 @@ static int fixed_phy_update_regs(struct fixed_phy *fp)
 	u16 lpagb = 0;
 	u16 lpa = 0;

-	if (fp->status.duplex) {
-		bmcr |= BMCR_FULLDPLX;
-
-		switch (fp->status.speed) {
-		case 1000:
-			bmsr |= BMSR_ESTATEN;
-			bmcr |= BMCR_SPEED1000;
-			lpagb |= LPA_1000FULL;
-			break;
-		case 100:
-			bmsr |= BMSR_100FULL;
-			bmcr |= BMCR_SPEED100;
-			lpa |= LPA_100FULL;
-			break;
-		case 10:
-			bmsr |= BMSR_10FULL;
-			lpa |= LPA_10FULL;
-			break;
-		default:
-			pr_warn("fixed phy: unknown speed\n");
-			return -EINVAL;
-		}
-	} else {
-		switch (fp->status.speed) {
-		case 1000:
-			bmsr |= BMSR_ESTATEN;
-			bmcr |= BMCR_SPEED1000;
-			lpagb |= LPA_1000HALF;
-			break;
-		case 100:
-			bmsr |= BMSR_100HALF;
-			bmcr |= BMCR_SPEED100;
-			lpa |= LPA_100HALF;
-			break;
-		case 10:
-			bmsr |= BMSR_10HALF;
-			lpa |= LPA_10HALF;
-			break;
-		default:
-			pr_warn("fixed phy: unknown speed\n");
-			return -EINVAL;
-		}
-	}
-
-	if (fp->status.link)
+	if (fp->status.link) {
 		bmsr |= BMSR_LSTATUS | BMSR_ANEGCOMPLETE;

-	if (fp->status.pause)
-		lpa |= LPA_PAUSE_CAP;
+		if (fp->status.duplex) {
+			bmcr |= BMCR_FULLDPLX;
+
+			switch (fp->status.speed) {
+			case 1000:
+				bmsr |= BMSR_ESTATEN;
+				bmcr |= BMCR_SPEED1000;
+				lpagb |= LPA_1000FULL;
+				break;
+			case 100:
+				bmsr |= BMSR_100FULL;
+				bmcr |= BMCR_SPEED100;
+				lpa |= LPA_100FULL;
+				break;
+			case 10:
+				bmsr |= BMSR_10FULL;
+				lpa |= LPA_10FULL;
+				break;
+			default:
+				pr_warn("fixed phy: unknown speed\n");
+				return -EINVAL;
+			}
+		} else {
+			switch (fp->status.speed) {
+			case 1000:
+				bmsr |= BMSR_ESTATEN;
+				bmcr |= BMCR_SPEED1000;
+				lpagb |= LPA_1000HALF;
+				break;
+			case 100:
+				bmsr |= BMSR_100HALF;
+				bmcr |= BMCR_SPEED100;
+				lpa |= LPA_100HALF;
+				break;
+			case 10:
+				bmsr |= BMSR_10HALF;
+				lpa |= LPA_10HALF;
+				break;
+			default:
+				pr_warn("fixed phy: unknown speed\n");
+				return -EINVAL;
+			}
+		}

-	if (fp->status.asym_pause)
-		lpa |= LPA_PAUSE_ASYM;
+		if (fp->status.pause)
+			lpa |= LPA_PAUSE_CAP;
+
+		if (fp->status.asym_pause)
+			lpa |= LPA_PAUSE_ASYM;
+	}

 	fp->regs[MII_PHYSID1] = 0;
 	fp->regs[MII_PHYSID2] = 0;
-- 
1.9.1
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