netdev - [PATCH net-next 2/2] net: lan966x: remove PHY reset support

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Message-Id: <20220428114049.1456382-3-michael@walle.cc>
Date:   Thu, 28 Apr 2022 13:40:49 +0200
From:   Michael Walle <michael@...le.cc>
To:     "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Horatiu Vultur <horatiu.vultur@...rochip.com>
Cc:     UNGLinuxDriver@...rochip.com,
        Philipp Zabel <p.zabel@...gutronix.de>, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Michael Walle <michael@...le.cc>
Subject: [PATCH net-next 2/2] net: lan966x: remove PHY reset support

The PHY subsystem as well as the MIIM mdio driver (in case of the
integrated PHYs) will take care of the resets. A separate reset driver
isn't needed. There is no in-tree user of this feature. Remove the
support.

Signed-off-by: Michael Walle <michael@...le.cc>
---
 drivers/net/ethernet/microchip/lan966x/lan966x_main.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
index 6579c7062aa5..138718f33dbd 100644
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
@@ -937,7 +937,7 @@ static int lan966x_ram_init(struct lan966x *lan966x)
 
 static int lan966x_reset_switch(struct lan966x *lan966x)
 {
-	struct reset_control *switch_reset, *phy_reset;
+	struct reset_control *switch_reset;
 	int val = 0;
 	int ret;
 
@@ -946,13 +946,7 @@ static int lan966x_reset_switch(struct lan966x *lan966x)
 		return dev_err_probe(lan966x->dev, PTR_ERR(switch_reset),
 				     "Could not obtain switch reset");
 
-	phy_reset = devm_reset_control_get_shared(lan966x->dev, "phy");
-	if (IS_ERR(phy_reset))
-		return dev_err_probe(lan966x->dev, PTR_ERR(phy_reset),
-				     "Could not obtain phy reset\n");
-
 	reset_control_reset(switch_reset);
-	reset_control_reset(phy_reset);
 
 	lan_wr(SYS_RESET_CFG_CORE_ENA_SET(0), lan966x, SYS_RESET_CFG);
 	lan_wr(SYS_RAM_INIT_RAM_INIT_SET(1), lan966x, SYS_RAM_INIT);
-- 
2.30.2