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From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Andrew Lunn <andrew@lunn.ch>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Heiner Kallweit <hkallweit1@gmail.com>
Cc: "David S . Miller" <davem@davemloft.net>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH] mdio_bus: Simplify reset handling and extend to non-DT systems
Date: Mon, 13 Jan 2020 14:05:29 +0100	[thread overview]
Message-ID: <20200113130529.15372-1-geert+renesas@glider.be> (raw)

Convert mdiobus_register_reset() from open-coded DT-only optional reset
handling to reset_control_get_optional_exclusive().  This not only
simplifies the code, but also adds support for lookup-based resets on
non-DT systems.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
Only tested on systems without PHY resets, with and without
CONFIG_RESET_CONTROLLER=y.

 drivers/net/phy/mdio_bus.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 229e480179ff1de4..8d753bb07227e561 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -59,17 +59,11 @@ static int mdiobus_register_gpiod(struct mdio_device *mdiodev)
 
 static int mdiobus_register_reset(struct mdio_device *mdiodev)
 {
-	struct reset_control *reset = NULL;
-
-	if (mdiodev->dev.of_node)
-		reset = of_reset_control_get_exclusive(mdiodev->dev.of_node,
-						       "phy");
-	if (IS_ERR(reset)) {
-		if (PTR_ERR(reset) == -ENOENT || PTR_ERR(reset) == -ENOTSUPP)
-			reset = NULL;
-		else
-			return PTR_ERR(reset);
-	}
+	struct reset_control *reset;
+
+	reset = reset_control_get_optional_exclusive(&mdiodev->dev, "phy");
+	if (IS_ERR(reset))
+		return PTR_ERR(reset);
 
 	mdiodev->reset_ctrl = reset;
 
-- 
2.17.1


             reply	other threads:[~2020-01-13 13:05 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-13 13:05 Geert Uytterhoeven [this message]
2020-01-13 13:28 ` [PATCH] mdio_bus: Simplify reset handling and extend to non-DT systems Andrew Lunn
2020-01-13 14:02 ` Philipp Zabel
2020-01-14 19:03 ` David Miller

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