diff options
Diffstat (limited to 'drivers/gpio/gpio-dwapb.c')
| -rw-r--r-- | drivers/gpio/gpio-dwapb.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c index 92e127e74813..0c5abfa361e6 100644 --- a/drivers/gpio/gpio-dwapb.c +++ b/drivers/gpio/gpio-dwapb.c @@ -690,13 +690,16 @@ static int dwapb_gpio_probe(struct platform_device *pdev) return PTR_ERR(gpio->regs); /* Optional bus clock */ - gpio->clk = devm_clk_get(&pdev->dev, "bus"); - if (!IS_ERR(gpio->clk)) { - err = clk_prepare_enable(gpio->clk); - if (err) { - dev_info(&pdev->dev, "Cannot enable clock\n"); - return err; - } + gpio->clk = devm_clk_get_optional(&pdev->dev, "bus"); + if (IS_ERR(gpio->clk)) { + dev_err(&pdev->dev, "Cannot get APB clock\n"); + return PTR_ERR(gpio->clk); + } + + err = clk_prepare_enable(gpio->clk); + if (err) { + dev_err(&pdev->dev, "Cannot enable APB clock\n"); + return err; } gpio->flags = 0; @@ -793,8 +796,7 @@ static int dwapb_gpio_resume(struct device *dev) unsigned long flags; int i; - if (!IS_ERR(gpio->clk)) - clk_prepare_enable(gpio->clk); + clk_prepare_enable(gpio->clk); spin_lock_irqsave(&gc->bgpio_lock, flags); for (i = 0; i < gpio->nr_ports; i++) { |