devm_clk_get_optional() and clk_prepare_enable() can be replaced by helper function devm_clk_get_optional_enabled(). Let's simplify code with use of devm_clk_get_optional_enabled() and avoid calling clk_disable_unprepare(). Signed-off-by: Zhang Zekun <zhangzekun11@xxxxxxxxxx> --- v2: Fix mistakes in commit message. drivers/gpio/gpio-mb86s7x.c | 21 +++++++-------------- 1 file changed, 7 insertions(+), 14 deletions(-) diff --git a/drivers/gpio/gpio-mb86s7x.c b/drivers/gpio/gpio-mb86s7x.c index 7fb298b4571b..ccbb63c21d6f 100644 --- a/drivers/gpio/gpio-mb86s7x.c +++ b/drivers/gpio/gpio-mb86s7x.c @@ -35,7 +35,6 @@ struct mb86s70_gpio_chip { struct gpio_chip gc; void __iomem *base; - struct clk *clk; spinlock_t lock; }; @@ -157,6 +156,7 @@ static int mb86s70_gpio_to_irq(struct gpio_chip *gc, unsigned int offset) static int mb86s70_gpio_probe(struct platform_device *pdev) { struct mb86s70_gpio_chip *gchip; + struct clk *clk; int ret; gchip = devm_kzalloc(&pdev->dev, sizeof(*gchip), GFP_KERNEL); @@ -169,13 +169,9 @@ static int mb86s70_gpio_probe(struct platform_device *pdev) if (IS_ERR(gchip->base)) return PTR_ERR(gchip->base); - gchip->clk = devm_clk_get_optional(&pdev->dev, NULL); - if (IS_ERR(gchip->clk)) - return PTR_ERR(gchip->clk); - - ret = clk_prepare_enable(gchip->clk); - if (ret) - return ret; + clk = devm_clk_get_optional_enabled(&pdev->dev, NULL); + if (IS_ERR(clk)) + return PTR_ERR(clk); spin_lock_init(&gchip->lock); @@ -193,11 +189,9 @@ static int mb86s70_gpio_probe(struct platform_device *pdev) gchip->gc.base = -1; ret = gpiochip_add_data(&gchip->gc, gchip); - if (ret) { - dev_err(&pdev->dev, "couldn't register gpio driver\n"); - clk_disable_unprepare(gchip->clk); - return ret; - } + if (ret) + return dev_err_probe(&pdev->dev, ret, + "couldn't register gpio driver\n"); acpi_gpiochip_request_interrupts(&gchip->gc); @@ -210,7 +204,6 @@ static void mb86s70_gpio_remove(struct platform_device *pdev) acpi_gpiochip_free_interrupts(&gchip->gc); gpiochip_remove(&gchip->gc); - clk_disable_unprepare(gchip->clk); } static const struct of_device_id mb86s70_gpio_dt_ids[] = { -- 2.17.1