From: Rosen Penev <rosenp@gmail.com>
To: netdev@vger.kernel.org
Cc: "Andrew Lunn" <andrew@lunn.ch>,
"Vladimir Oltean" <olteanv@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
"Eric Dumazet" <edumazet@google.com>,
"Jakub Kicinski" <kuba@kernel.org>,
"Paolo Abeni" <pabeni@redhat.com>,
"Clément Léger" <clement.leger@bootlin.com>,
linux-kernel@vger.kernel.org (open list),
linux-renesas-soc@vger.kernel.org (open list:RENESAS RZ/N1 A5PSW
SWITCH DRIVER)
Subject: [PATCH 2/2] net: dsa: rzn1_a5psw: use devm to enable clocks
Date: Sun, 6 Jul 2025 17:39:18 -0700 [thread overview]
Message-ID: <20250707003918.21607-3-rosenp@gmail.com> (raw)
In-Reply-To: <20250707003918.21607-1-rosenp@gmail.com>
The remove function has these in the wrong order. The switch should be
unregistered last. Simpler to use devm so that the right thing is done.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
drivers/net/dsa/rzn1_a5psw.c | 22 ++++------------------
1 file changed, 4 insertions(+), 18 deletions(-)
diff --git a/drivers/net/dsa/rzn1_a5psw.c b/drivers/net/dsa/rzn1_a5psw.c
index df7466d4fe8f..1635255f58e4 100644
--- a/drivers/net/dsa/rzn1_a5psw.c
+++ b/drivers/net/dsa/rzn1_a5psw.c
@@ -1227,35 +1227,27 @@ static int a5psw_probe(struct platform_device *pdev)
if (ret)
return ret;
- a5psw->hclk = devm_clk_get(dev, "hclk");
+ a5psw->hclk = devm_clk_get_enabled(dev, "hclk");
if (IS_ERR(a5psw->hclk)) {
dev_err(dev, "failed get hclk clock\n");
ret = PTR_ERR(a5psw->hclk);
goto free_pcs;
}
- a5psw->clk = devm_clk_get(dev, "clk");
+ a5psw->clk = devm_clk_get_enabled(dev, "clk");
if (IS_ERR(a5psw->clk)) {
dev_err(dev, "failed get clk_switch clock\n");
ret = PTR_ERR(a5psw->clk);
goto free_pcs;
}
- ret = clk_prepare_enable(a5psw->clk);
- if (ret)
- goto free_pcs;
-
- ret = clk_prepare_enable(a5psw->hclk);
- if (ret)
- goto clk_disable;
-
mdio = of_get_available_child_by_name(dev->of_node, "mdio");
if (mdio) {
ret = a5psw_probe_mdio(a5psw, mdio);
of_node_put(mdio);
if (ret) {
dev_err(dev, "Failed to register MDIO: %d\n", ret);
- goto hclk_disable;
+ goto free_pcs;
}
}
@@ -1269,15 +1261,11 @@ static int a5psw_probe(struct platform_device *pdev)
ret = dsa_register_switch(ds);
if (ret) {
dev_err(dev, "Failed to register DSA switch: %d\n", ret);
- goto hclk_disable;
+ goto free_pcs;
}
return 0;
-hclk_disable:
- clk_disable_unprepare(a5psw->hclk);
-clk_disable:
- clk_disable_unprepare(a5psw->clk);
free_pcs:
a5psw_pcs_free(a5psw);
@@ -1293,8 +1281,6 @@ static void a5psw_remove(struct platform_device *pdev)
dsa_unregister_switch(&a5psw->ds);
a5psw_pcs_free(a5psw);
- clk_disable_unprepare(a5psw->hclk);
- clk_disable_unprepare(a5psw->clk);
}
static void a5psw_shutdown(struct platform_device *pdev)
--
2.50.0
next prev parent reply other threads:[~2025-07-07 0:39 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-07 0:39 [PATCH 0/2] net: dsa: rzn1_a5psw: add COMPILE_TEST Rosen Penev
2025-07-07 0:39 ` [PATCH 1/2] " Rosen Penev
2025-07-07 5:55 ` Andrew Lunn
2025-07-07 6:01 ` Andrew Lunn
2025-07-07 20:25 ` kernel test robot
2025-07-07 20:47 ` Rosen Penev
2025-07-07 21:33 ` Vladimir Oltean
2025-07-07 0:39 ` Rosen Penev [this message]
2025-07-07 5:56 ` [PATCH 2/2] net: dsa: rzn1_a5psw: use devm to enable clocks Andrew Lunn
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