linux-kernel - [PATCH v1 2/2] gpio: zynq: Simplify using devm_clk_get

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20240820121651.29706-3-rongqianfeng@vivo.com>
Date: Tue, 20 Aug 2024 20:16:51 +0800
From: Rong Qianfeng <rongqianfeng@...o.com>
To: Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	Shubhrajyoti Datta <shubhrajyoti.datta@....com>,
	Srinivas Neeli <srinivas.neeli@....com>,
	Michal Simek <michal.simek@....com>,
	linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Cc: opensource.kernel@...o.com,
	Rong Qianfeng <rongqianfeng@...o.com>
Subject: [PATCH v1 2/2] gpio: zynq: Simplify using devm_clk_get_enabled()

Use devm_clk_get_enabled() simplify zynq_gpio_probe() and zynq_gpio_remove().

Signed-off-by: Rong Qianfeng <rongqianfeng@...o.com>
---
 drivers/gpio/gpio-zynq.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c
index 466e23031afc..1a42336dfc1d 100644
--- a/drivers/gpio/gpio-zynq.c
+++ b/drivers/gpio/gpio-zynq.c
@@ -940,16 +940,10 @@ static int zynq_gpio_probe(struct platform_device *pdev)
 	chip->ngpio = gpio->p_data->ngpio;
 
 	/* Retrieve GPIO clock */
-	gpio->clk = devm_clk_get(&pdev->dev, NULL);
+	gpio->clk = devm_clk_get_enabled(&pdev->dev, NULL);
 	if (IS_ERR(gpio->clk))
 		return dev_err_probe(&pdev->dev, PTR_ERR(gpio->clk), "input clock not found.\n");
 
-	ret = clk_prepare_enable(gpio->clk);
-	if (ret) {
-		dev_err(&pdev->dev, "Unable to enable clock.\n");
-		return ret;
-	}
-
 	spin_lock_init(&gpio->dirlock);
 
 	pm_runtime_set_active(&pdev->dev);
@@ -999,7 +993,6 @@ static int zynq_gpio_probe(struct platform_device *pdev)
 	pm_runtime_put(&pdev->dev);
 err_pm_dis:
 	pm_runtime_disable(&pdev->dev);
-	clk_disable_unprepare(gpio->clk);
 
 	return ret;
 }
@@ -1019,7 +1012,6 @@ static void zynq_gpio_remove(struct platform_device *pdev)
 	if (ret < 0)
 		dev_warn(&pdev->dev, "pm_runtime_get_sync() Failed\n");
 	gpiochip_remove(&gpio->chip);
-	clk_disable_unprepare(gpio->clk);
 	device_set_wakeup_capable(&pdev->dev, 0);
 	pm_runtime_disable(&pdev->dev);
 }
-- 
2.39.0