From: Michael Walle <michael@walle.cc>
To: "David S . Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Lars Povlsen <lars.povlsen@microchip.com>,
Steen Hegelund <Steen.Hegelund@microchip.com>,
Horatiu Vultur <horatiu.vultur@microchip.com>
Cc: UNGLinuxDriver@microchip.com,
Philipp Zabel <p.zabel@pengutronix.de>,
netdev@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Michael Walle <michael@walle.cc>
Subject: [PATCH net-next 2/2] net: lan966x: make reset optional
Date: Wed, 31 Aug 2022 13:18:55 +0200 [thread overview]
Message-ID: <20220831111855.1749646-3-michael@walle.cc> (raw)
In-Reply-To: <20220831111855.1749646-1-michael@walle.cc>
There is no dedicated reset for just the switch core. The reset which
is used up until now, is more of a global reset, resetting almost the
whole SoC and cause spurious errors by doing so. Make it possible to
handle the reset elsewhere and make the reset optional.
Signed-off-by: Michael Walle <michael@walle.cc>
---
drivers/net/ethernet/microchip/lan966x/lan966x_main.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
index 2ad078608c45..e2c77f954a3d 100644
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
@@ -971,7 +971,8 @@ static int lan966x_reset_switch(struct lan966x *lan966x)
int val = 0;
int ret;
- switch_reset = devm_reset_control_get_shared(lan966x->dev, "switch");
+ switch_reset = devm_reset_control_get_optional_shared(lan966x->dev,
+ "switch");
if (IS_ERR(switch_reset))
return dev_err_probe(lan966x->dev, PTR_ERR(switch_reset),
"Could not obtain switch reset");
--
2.30.2
next prev parent reply other threads:[~2022-08-31 11:19 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-31 11:18 [PATCH net-next 0/2] net: lan966x: make reset optional Michael Walle
2022-08-31 11:18 ` [PATCH net-next 1/2] dt-bindings: net: sparx5: don't require a reset line Michael Walle
2022-08-31 11:18 ` Michael Walle [this message]
2022-09-02 11:30 ` [PATCH net-next 0/2] net: lan966x: make reset optional patchwork-bot+netdevbpf
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