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1 | /* |
2 | * AESS IP block reset |
3 | * |
4 | * Copyright (C) 2012 Texas Instruments, Inc. |
5 | * Paul Walmsley |
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 as |
9 | * published by the Free Software Foundation version 2. |
10 | * |
11 | * This program is distributed "as is" WITHOUT ANY WARRANTY of any |
12 | * kind, whether express or implied; without even the implied warranty |
13 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | * GNU General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU General Public License |
17 | * along with this program; if not, write to the Free Software |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
19 | * 02110-1301 USA |
20 | */ |
21 | #ifndef __SOUND_AESS_H__ |
22 | #define __SOUND_AESS_H__ |
23 | |
24 | #include <linux/kernel.h> |
25 | #include <linux/io.h> |
26 | |
27 | /* |
28 | * AESS_AUTO_GATING_ENABLE_OFFSET: offset in bytes of the AESS IP |
29 | * block's AESS_AUTO_GATING_ENABLE__1 register from the IP block's |
30 | * base address |
31 | */ |
32 | #define AESS_AUTO_GATING_ENABLE_OFFSET 0x07c |
33 | |
34 | /* Register bitfields in the AESS_AUTO_GATING_ENABLE__1 register */ |
35 | #define AESS_AUTO_GATING_ENABLE_SHIFT 0 |
36 | |
37 | /** |
38 | * aess_enable_autogating - enable AESS internal autogating |
39 | * @oh: struct omap_hwmod * |
40 | * |
41 | * Enable internal autogating on the AESS. This allows the AESS to |
42 | * indicate that it is idle to the OMAP PRCM. Returns 0. |
43 | */ |
44 | static inline void aess_enable_autogating(void __iomem *base) |
45 | { |
46 | u32 v; |
47 | |
48 | /* Set AESS_AUTO_GATING_ENABLE__1.ENABLE to allow idle entry */ |
49 | v = 1 << AESS_AUTO_GATING_ENABLE_SHIFT; |
50 | writel(v, base + AESS_AUTO_GATING_ENABLE_OFFSET); |
51 | } |
52 | |
53 | #endif /* __SOUND_AESS_H__ */ |
54 |
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