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GPIO: gpio-dwapb: Enable platform driver binding to MFD driver

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The Synopsys DesignWare APB GPIO driver only supports open firmware devices.
But, like Intel Quark X1000 SOC, which has a single PCI function exporting
a GPIO and an I2C controller, it is a Multifunction device. This patch is
to enable the current Synopsys DesignWare APB GPIO driver to support the
Multifunction device which exports the designware GPIO controller.

Reviewed-by: Hock Leong Kweh <hock.leong.kweh@intel.com>
Signed-off-by: Weike Chen <alvin.chen@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Weike Chen 2014-09-17 09:18:39 -07:00 • committed by Linus Walleij
parent e1db1706c8
commit 3d2613c428
3 changed files with 199 additions and 58 deletions
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32
include/linux/platform_data/gpio-dwapb.h Normal file
View file

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/*
* Copyright(c) 2014 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*/
#ifndef GPIO_DW_APB_H
#define GPIO_DW_APB_H
struct dwapb_port_property {
struct device_node *node;
const char *name;
unsigned int idx;
unsigned int ngpio;
unsigned int gpio_base;
unsigned int irq;
bool irq_shared;
};
struct dwapb_platform_data {
struct dwapb_port_property *properties;
unsigned int nports;
};
#endif