blob: a164efbe835594b2ae4a7373135e8e1a721194aa [file] [log] [blame]
/* Copyright (c) 2002-3 Patrick Mochel
* Copyright (c) 2002-3 Open Source Development Labs
* Copyright (c) 2012, Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that 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.
*
* Resource handling based on platform.c.
*/
#include <linux/export.h>
#include <mach/qpnp.h>
/**
* qpnp_get_resource - get a resource for a device
* @dev: qpnp device
* @type: resource type
* @num: resource index
*/
struct resource *qpnp_get_resource(struct spmi_device *dev,
unsigned int node_idx, unsigned int type,
unsigned int res_num)
{
int i;
for (i = 0; i < dev->dev_node[node_idx].num_resources; i++) {
struct resource *r = &dev->dev_node[node_idx].resource[i];
if (type == resource_type(r) && res_num-- == 0)
return r;
}
return NULL;
}
EXPORT_SYMBOL_GPL(qpnp_get_resource);
/**
* qpnp_get_irq - get an IRQ for a device
* @dev: qpnp device
* @num: IRQ number index
*/
int qpnp_get_irq(struct spmi_device *dev, unsigned int node_idx,
unsigned int res_num)
{
struct resource *r = qpnp_get_resource(dev, node_idx,
IORESOURCE_IRQ, res_num);
return r ? r->start : -ENXIO;
}
EXPORT_SYMBOL_GPL(qpnp_get_irq);