- for (i = 0; i < master->num_chipselect; i++) {
- ret = devm_gpio_request(&pdev->dev, master->cs_gpios[i],
- dev_name(&pdev->dev));
- if (ret) {
- dev_err(&pdev->dev,
- "can't get CS GPIO %i\n", i);
- goto err_put_master;
+ if (!master->cs_gpios && master->num_chipselect > 1) {
+ dev_err(&pdev->dev,
+ "cs_gpios not specified and num_chipselect > 1\n");
+ ret = -EINVAL;
+ goto err_put_master;
+ }
+
+ if (master->cs_gpios) {
+ for (i = 0; i < master->num_chipselect; i++) {
+ ret = devm_gpio_request(&pdev->dev,
+ master->cs_gpios[i],
+ dev_name(&pdev->dev));
+ if (ret) {
+ dev_err(&pdev->dev,
+ "can't get CS GPIO %i\n", i);
+ goto err_put_master;
+ }