kernel/arch/x86/platform/intel-mid/device_libs/platform_msic_audio.c

   1 /*
   2  * platform_msic_audio.c: MSIC audio platform data initilization file
   3  *
   4  * (C) Copyright 2013 Intel Corporation
   5  * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; version 2
  10  * of the License.
  11  */
  12
  13 #include <linux/kernel.h>
  14 #include <linux/interrupt.h>
  15 #include <linux/scatterlist.h>
  16 #include <linux/init.h>
  17 #include <linux/sfi.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/mfd/intel_msic.h>
  20 #include <asm/intel-mid.h>
  21
  22 #include "platform_msic.h"
  23 #include "platform_ipc.h"
  24
  25 static void *msic_audio_platform_data(void *info)
  26 {
  27         struct platform_device *pdev;
  28
  29         pdev = platform_device_register_simple("sst-platform", -1, NULL, 0);
  30
  31         if (IS_ERR(pdev)) {
  32                 pr_err("failed to create audio platform device\n");
  33                 return NULL;
  34         }
  35
  36         return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_AUDIO);
  37 }
  38
  39 static const struct devs_id msic_audio_dev_id __initconst = {
  40         .name = "msic_audio",
  41         .type = SFI_DEV_TYPE_IPC,
  42         .delay = 1,
  43         .get_platform_data = &msic_audio_platform_data,
  44         .device_handler = &ipc_device_handler,
  45 };
  46
  47 sfi_device(msic_audio_dev_id);