- if (!np) {
- dev_err(dev, "missing DT data");
- return -EINVAL;
- }
-
- of_property_read_u32(np, "keypad,num-rows", &keypad_data->rows);
- of_property_read_u32(np, "keypad,num-columns", &keypad_data->cols);
- if (!keypad_data->rows || !keypad_data->cols) {
- dev_err(dev, "number of keypad rows/columns not specified\n");
- return -EINVAL;
- }