Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm...
[sfrench/cifs-2.6.git] / arch / arm / mach-omap2 / dsp.c
1 /*
2  * TI's OMAP DSP platform device registration
3  *
4  * Copyright (C) 2005-2006 Texas Instruments, Inc.
5  * Copyright (C) 2009 Nokia Corporation
6  *
7  * Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License version 2 as
11  * published by the Free Software Foundation.
12  */
13
14 /*
15  * XXX The function pointers to the PRM/CM functions are incorrect and
16  * should be removed.  No device driver should be changing PRM/CM bits
17  * directly; that's a layering violation -- those bits are the responsibility
18  * of the OMAP PM core code.
19  */
20
21 #include <linux/module.h>
22 #include <linux/platform_device.h>
23 #include "cm2xxx_3xxx.h"
24 #include "prm2xxx_3xxx.h"
25 #ifdef CONFIG_BRIDGE_DVFS
26 #include <plat/omap-pm.h>
27 #endif
28
29 #include <plat/dsp.h>
30
31 extern phys_addr_t omap_dsp_get_mempool_base(void);
32
33 static struct platform_device *omap_dsp_pdev;
34
35 static struct omap_dsp_platform_data omap_dsp_pdata __initdata = {
36 #ifdef CONFIG_BRIDGE_DVFS
37         .dsp_set_min_opp = omap_pm_dsp_set_min_opp,
38         .dsp_get_opp = omap_pm_dsp_get_opp,
39         .cpu_set_freq = omap_pm_cpu_set_freq,
40         .cpu_get_freq = omap_pm_cpu_get_freq,
41 #endif
42         .dsp_prm_read = omap2_prm_read_mod_reg,
43         .dsp_prm_write = omap2_prm_write_mod_reg,
44         .dsp_prm_rmw_bits = omap2_prm_rmw_mod_reg_bits,
45         .dsp_cm_read = omap2_cm_read_mod_reg,
46         .dsp_cm_write = omap2_cm_write_mod_reg,
47         .dsp_cm_rmw_bits = omap2_cm_rmw_mod_reg_bits,
48 };
49
50 static int __init omap_dsp_init(void)
51 {
52         struct platform_device *pdev;
53         int err = -ENOMEM;
54         struct omap_dsp_platform_data *pdata = &omap_dsp_pdata;
55
56         pdata->phys_mempool_base = omap_dsp_get_mempool_base();
57
58         if (pdata->phys_mempool_base) {
59                 pdata->phys_mempool_size = CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE;
60                 pr_info("%s: %llx bytes @ %llx\n", __func__,
61                         (unsigned long long)pdata->phys_mempool_size,
62                         (unsigned long long)pdata->phys_mempool_base);
63         }
64
65         pdev = platform_device_alloc("omap-dsp", -1);
66         if (!pdev)
67                 goto err_out;
68
69         err = platform_device_add_data(pdev, pdata, sizeof(*pdata));
70         if (err)
71                 goto err_out;
72
73         err = platform_device_add(pdev);
74         if (err)
75                 goto err_out;
76
77         omap_dsp_pdev = pdev;
78         return 0;
79
80 err_out:
81         platform_device_put(pdev);
82         return err;
83 }
84 module_init(omap_dsp_init);
85
86 static void __exit omap_dsp_exit(void)
87 {
88         platform_device_unregister(omap_dsp_pdev);
89 }
90 module_exit(omap_dsp_exit);
91
92 MODULE_AUTHOR("Hiroshi DOYU");
93 MODULE_DESCRIPTION("TI's OMAP DSP platform device registration");
94 MODULE_LICENSE("GPL");