irqchip: davinci-aintc: add a new config structure

Add a config structure that will be used by aintc-based platforms.
It contains the register range resource, number of interrupts and
a list of priorities.
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

include/linux/irqchip/irq-davinci-aintc.h

+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2019 Texas Instruments
+ */
+
+#ifndef _LINUX_IRQ_DAVINCI_AINTC_
+#define _LINUX_IRQ_DAVINCI_AINTC_
+
+#include <linux/ioport.h>
+
+/**
+ * struct davinci_aintc_config - configuration data for davinci-aintc driver.
+ *
+ * @reg: register range to map
+ * @num_irqs: number of HW interrupts supported by the controller
+ * @prios: an array of size num_irqs containing priority settings for
+ *         each interrupt
+ */
+struct davinci_aintc_config {
+	struct resource reg;
+	unsigned int num_irqs;
+	u8 *prios;
+};
+
+#endif /* _LINUX_IRQ_DAVINCI_AINTC_ */