From: Anson Huang <[email protected]> i.MX SoC's GPIO clock is optional, so it is better to use devm_clk_get_optional instead of devm_clk_get.
Signed-off-by: Anson Huang <[email protected]> --- drivers/gpio/gpio-mxc.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c index b281358..7907a87 100644 --- a/drivers/gpio/gpio-mxc.c +++ b/drivers/gpio/gpio-mxc.c @@ -435,12 +435,9 @@ static int mxc_gpio_probe(struct platform_device *pdev) return port->irq; /* the controller clock is optional */ - port->clk = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(port->clk)) { - if (PTR_ERR(port->clk) == -EPROBE_DEFER) - return -EPROBE_DEFER; - port->clk = NULL; - } + port->clk = devm_clk_get_optional(&pdev->dev, NULL); + if (IS_ERR(port->clk)) + return PTR_ERR(port->clk); err = clk_prepare_enable(port->clk); if (err) { -- 2.7.4
