On Saturday 15 February 2014 03:28 AM, Stephen Warren wrote:
From: Stephen Warren <swarren@xxxxxxxxxx> The Tegra PMC's resume-from-sleep logic wants an active-low IRQ input from the PMIC. However, the PMIC IRQ is also routed to the GIC, which only supports active high IRQs (or rising edge). Hence, the signal must be inverted in the PMC before being routed to the GIC. This implies that the PMC DT property nvidia,invert-interrupt must be set, and it is. The PMIC's DT interrupts property must represent the IRQ level at the GIC, since that is the PMIC's parent IRQ controller. Fix the PMIC's interrupts property to correctly describe the GIC input polarity. However, the PMIC IRQ output's polarity is programmable in HW, and by default follows the parent IRQ controller's input polarity. We need to have an active-low output due to the inversion inside the Tegra PMC. Hence, add the ti,irq-externally-inverted property to the PMIC.
Looks good to me. Acked-by: Laxman Dewangan <ldewangan@xxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
