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c02060d8 PW |
1 | /* |
2 | * OMAP IP block custom reset and preprogramming stubs | |
3 | * | |
4 | * Copyright (C) 2012 Texas Instruments, Inc. | |
5 | * Paul Walmsley | |
6 | * | |
7 | * A small number of IP blocks need custom reset and preprogramming | |
8 | * functions. The stubs in this file provide a standard way for the | |
9 | * hwmod code to call these functions, which are to be located under | |
10 | * drivers/. | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License as | |
14 | * published by the Free Software Foundation version 2. | |
15 | * | |
16 | * This program is distributed "as is" WITHOUT ANY WARRANTY of any | |
17 | * kind, whether express or implied; without even the implied warranty | |
18 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
24 | * 02110-1301 USA | |
25 | */ | |
26 | #include <linux/kernel.h> | |
55ccb1a8 | 27 | #include <linux/errno.h> |
c02060d8 PW |
28 | |
29 | #include <sound/aess.h> | |
30 | ||
31 | #include "omap_hwmod.h" | |
32 | ||
33 | /** | |
34 | * omap_hwmod_aess_preprogram - enable AESS internal autogating | |
35 | * @oh: struct omap_hwmod * | |
36 | * | |
37 | * The AESS will not IdleAck to the PRCM until its internal autogating | |
38 | * is enabled. Since internal autogating is disabled by default after | |
39 | * AESS reset, we must enable autogating after the hwmod code resets | |
40 | * the AESS. Returns 0. | |
41 | */ | |
42 | int omap_hwmod_aess_preprogram(struct omap_hwmod *oh) | |
43 | { | |
44 | void __iomem *va; | |
45 | ||
46 | va = omap_hwmod_get_mpu_rt_va(oh); | |
47 | if (!va) | |
48 | return -EINVAL; | |
49 | ||
50 | aess_enable_autogating(va); | |
51 | ||
52 | return 0; | |
53 | } |