Hello, I experience problems on using gpio irqs on an imx27 based machine booting with dt. I think one problem is: if (mxc_gpio_hwtype == IMX21_GPIO) { /* setup one handler for all GPIO interrupts */ if (pdev->id == 0) irq_set_chained_handler(port->irq, mx2_gpio_irq_handler); } ... because the inner if doesn't trigger as dt-created gpio devices have all pdev->id == -1. I havn't looked deeper into it yet, but I think another problem is that gpios don't start at 0 and so the usual #define OTG_PHY_CS_GPIO (GPIO_PORTB + 23) doesn't work either (which might be expected, but doesn't necessarily needs to fail?!). (You could argue I shouldn't hardcode gpio numbers any more, but as not all device drivers are oftree aware yet I need to get of the ground somehow.) I'm leaving for the weekend now, so just wanted you to inform that there is a problem. Shawn, maybe you have an idea? Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ | _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-arm-kernel