[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20240822040734.29412-6-liulei.rjpt@vivo.com>
Date: Thu, 22 Aug 2024 12:07:30 +0800
From: Lei Liu <liulei.rjpt@...o.com>
To: Neal Liu <neal_liu@...eedtech.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Joel Stanley <joel@....id.au>,
Andrew Jeffery <andrew@...econstruct.com.au>,
Daniel Mack <daniel@...que.org>,
Haojian Zhuang <haojian.zhuang@...il.com>,
Robert Jarzmik <robert.jarzmik@...e.fr>,
Conor Dooley <conor.dooley@...rochip.com>,
Daire McNamara <daire.mcnamara@...rochip.com>,
Bin Liu <b-liu@...com>,
Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
linux-aspeed@...ts.ozlabs.org,
linux-usb@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org,
linux-riscv@...ts.infradead.org
Cc: opensource.kernel@...o.com,
Lei Liu <liulei.rjpt@...o.com>
Subject: [PATCH v1 5/5] usb: ux500: Use devm_clk_get_enabled() helpers
The devm_clk_get_enabled() helpers:
- call devm_clk_get()
- call clk_prepare_enable() and register what is needed in order to
call clk_disable_unprepare() when needed, as a managed resource.
This simplifies the code and avoids calls to clk_disable_unprepare().
---
v0 -> v1
Incorrect usage of clk_prepare_enable() should be corrected to
devm_clk_get_enabled().
Signed-off-by: Lei Liu <liulei.rjpt@...o.com>
---
drivers/usb/musb/ux500.c | 18 ++++--------------
1 file changed, 4 insertions(+), 14 deletions(-)
diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c
index c8d9d2a1d2f0..51ce67678c0c 100644
--- a/drivers/usb/musb/ux500.c
+++ b/drivers/usb/musb/ux500.c
@@ -246,19 +246,13 @@ static int ux500_probe(struct platform_device *pdev)
goto err0;
}
- clk = devm_clk_get(&pdev->dev, NULL);
+ clk = devm_clk_get_enabled(&pdev->dev, NULL);
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "failed to get clock\n");
ret = PTR_ERR(clk);
goto err1;
}
- ret = clk_prepare_enable(clk);
- if (ret) {
- dev_err(&pdev->dev, "failed to enable clock\n");
- goto err1;
- }
-
musb->dev.parent = &pdev->dev;
musb->dev.dma_mask = &pdev->dev.coherent_dma_mask;
musb->dev.coherent_dma_mask = pdev->dev.coherent_dma_mask;
@@ -276,26 +270,23 @@ static int ux500_probe(struct platform_device *pdev)
ret = platform_device_add_resources(musb, pdev->resource, pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "failed to add resources\n");
- goto err2;
+ goto err1;
}
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(&pdev->dev, "failed to add platform_data\n");
- goto err2;
+ goto err1;
}
ret = platform_device_add(musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device\n");
- goto err2;
+ goto err1;
}
return 0;
-err2:
- clk_disable_unprepare(clk);
-
err1:
platform_device_put(musb);
@@ -308,7 +299,6 @@ static void ux500_remove(struct platform_device *pdev)
struct ux500_glue *glue = platform_get_drvdata(pdev);
platform_device_unregister(glue->musb);
- clk_disable_unprepare(glue->clk);
}
#ifdef CONFIG_PM_SLEEP
--
2.34.1
Powered by blists - more mailing lists