| Paul Walmsley | cf8ba17 | 2013-02-10 11:22:23 -0700 | [diff] [blame] | 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__ */ |