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6f74dc9bc8
Enhance the driver to dynamically allocate the base IRQ number, and create an IRQ domain for itself. The use of an IRQ domain ensures that any device tree node interrupts properties are correctly parsed. Describe interrupt-related properties in the device tree binding docs, and the contents of "child" node interrupts property. Update tegra*.dtsi to specify the required interrupt-related properties. Finally, remove the definition of TEGRA_GPIO_TO_IRQ; this macro no longer gives correct results since the IRQ numbers for GPIOs are dynamically allocated. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Olof Johansson <olof@lixom.net>
38 lines
1002 B
C
38 lines
1002 B
C
/*
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* arch/arm/mach-tegra/include/mach/gpio.h
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*
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* Copyright (C) 2010 Google, Inc.
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*
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* Author:
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* Erik Gilling <konkers@google.com>
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __MACH_TEGRA_GPIO_TEGRA_H
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#define __MACH_TEGRA_GPIO_TEGRA_H
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#include <linux/types.h>
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#include <mach/irqs.h>
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#define TEGRA_NR_GPIOS INT_GPIO_NR
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struct tegra_gpio_table {
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int gpio; /* GPIO number */
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bool enable; /* Enable for GPIO at init? */
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};
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void tegra_gpio_config(struct tegra_gpio_table *table, int num);
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void tegra_gpio_enable(int gpio);
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void tegra_gpio_disable(int gpio);
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#endif
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