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/*
* platform_ipc.c: IPC platform library file
*
* (C) Copyright 2013 Intel Corporation
* Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; version 2
* of the License.
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/sfi.h>
#include <linux/gpio.h>
#include <asm/intel-mid.h>
#include "platform_ipc.h"
void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
struct devs_id *dev)
{
struct platform_device *pdev;
void *pdata = NULL;
static struct resource res __initdata = {
.name = "IRQ",
.flags = IORESOURCE_IRQ,
};
pr_debug("IPC bus, name = %16.16s, irq = 0x%2x\n",
pentry->name, pentry->irq);
/*
* We need to call platform init of IPC devices to fill misc_pdata
* structure. It will be used in msic_init for initialization.
*/
if (dev != NULL)
pdata = dev->get_platform_data(pentry);
/*
* On Medfield the platform device creation is handled by the MSIC
* MFD driver so we don't need to do it here.
*/
if (intel_mid_has_msic())
return;
pdev = platform_device_alloc(pentry->name, 0);
if (pdev == NULL) {
pr_err("out of memory for SFI platform device '%s'.\n",
pentry->name);
return;
}
res.start = pentry->irq;
platform_device_add_resources(pdev, &res, 1);
pdev->dev.platform_data = pdata;
intel_scu_device_register(pdev);
}
static const struct devs_id pmic_audio_dev_id __initconst = {
.name = "pmic_audio",
.type = SFI_DEV_TYPE_IPC,
.delay = 1,
.device_handler = &ipc_device_handler,
};
sfi_device(pmic_audio_dev_id);
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