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;
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++) {