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90173882 FC |
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 | ||
59fb659b PW |
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 | ||
90173882 | 21 | #include <linux/platform_device.h> |
59fb659b PW |
22 | #include "cm2xxx_3xxx.h" |
23 | #include "prm2xxx_3xxx.h" | |
90173882 FC |
24 | #ifdef CONFIG_BRIDGE_DVFS |
25 | #include <plat/omap-pm.h> | |
26 | #endif | |
27 | ||
28 | #include <plat/dsp.h> | |
29 | ||
30 | extern phys_addr_t omap_dsp_get_mempool_base(void); | |
31 | ||
32 | static struct platform_device *omap_dsp_pdev; | |
33 | ||
34 | static struct omap_dsp_platform_data omap_dsp_pdata __initdata = { | |
35 | #ifdef CONFIG_BRIDGE_DVFS | |
36 | .dsp_set_min_opp = omap_pm_dsp_set_min_opp, | |
37 | .dsp_get_opp = omap_pm_dsp_get_opp, | |
38 | .cpu_set_freq = omap_pm_cpu_set_freq, | |
39 | .cpu_get_freq = omap_pm_cpu_get_freq, | |
40 | #endif | |
41 | .dsp_prm_read = prm_read_mod_reg, | |
42 | .dsp_prm_write = prm_write_mod_reg, | |
43 | .dsp_prm_rmw_bits = prm_rmw_mod_reg_bits, | |
44 | .dsp_cm_read = cm_read_mod_reg, | |
45 | .dsp_cm_write = cm_write_mod_reg, | |
46 | .dsp_cm_rmw_bits = cm_rmw_mod_reg_bits, | |
47 | }; | |
48 | ||
49 | static int __init omap_dsp_init(void) | |
50 | { | |
51 | struct platform_device *pdev; | |
52 | int err = -ENOMEM; | |
53 | struct omap_dsp_platform_data *pdata = &omap_dsp_pdata; | |
54 | ||
55 | pdata->phys_mempool_base = omap_dsp_get_mempool_base(); | |
56 | ||
57 | if (pdata->phys_mempool_base) { | |
58 | pdata->phys_mempool_size = CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE; | |
59 | pr_info("%s: %x bytes @ %x\n", __func__, | |
60 | pdata->phys_mempool_size, pdata->phys_mempool_base); | |
61 | } | |
62 | ||
63 | pdev = platform_device_alloc("omap-dsp", -1); | |
64 | if (!pdev) | |
65 | goto err_out; | |
66 | ||
67 | err = platform_device_add_data(pdev, pdata, sizeof(*pdata)); | |
68 | if (err) | |
69 | goto err_out; | |
70 | ||
71 | err = platform_device_add(pdev); | |
72 | if (err) | |
73 | goto err_out; | |
74 | ||
75 | omap_dsp_pdev = pdev; | |
76 | return 0; | |
77 | ||
78 | err_out: | |
79 | platform_device_put(pdev); | |
80 | return err; | |
81 | } | |
82 | module_init(omap_dsp_init); | |
83 | ||
84 | static void __exit omap_dsp_exit(void) | |
85 | { | |
86 | platform_device_unregister(omap_dsp_pdev); | |
87 | } | |
88 | module_exit(omap_dsp_exit); | |
89 | ||
90 | MODULE_AUTHOR("Hiroshi DOYU"); | |
91 | MODULE_DESCRIPTION("TI's OMAP DSP platform device registration"); | |
92 | MODULE_LICENSE("GPL"); |