Hi Laurent, In 7e1092b5a264c4 ("gpio-rcar: Add support for IRQ_TYPE_EDGE_BOTH") I added a 'has_both_edge_trigger' field to struct gpio_rcar_config. Setting this adds support IRQ_TYPE_EDGE_BOTH. The motivation for this was to allow use of the gpio-keys driver on the lager board. I am now looking at enabling gpio-keys via DT for koelsch and lager and find myself needing to set has_both_edge_trigger somehow. I am wondering if you have any ideas on how best to do this. So far I have two ideas: 1. Expose has_both_edge_trigger as a binding. 2. Set has_both_edge_trigger in the driver if the compat string is renesas,gpio-r8a7791 or renesas,gpio-r8a7790 but not for other supported compat strings (as is currently the case). -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html