| Kenneth Westfield | cd59f13 | 2015-03-03 16:21:53 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 and |
| 6 | * only version 2 as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * lpass.h - Definitions for the QTi LPASS |
| 14 | */ |
| 15 | |
| 16 | #ifndef __LPASS_H__ |
| 17 | #define __LPASS_H__ |
| 18 | |
| 19 | #include <linux/clk.h> |
| 20 | #include <linux/compiler.h> |
| 21 | #include <linux/platform_device.h> |
| 22 | #include <linux/regmap.h> |
| 23 | |
| 24 | #define LPASS_AHBIX_CLOCK_FREQUENCY 131072000 |
| 25 | |
| 26 | /* Both the CPU DAI and platform drivers will access this data */ |
| 27 | struct lpass_data { |
| 28 | |
| 29 | /* AHB-I/X bus clocks inside the low-power audio subsystem (LPASS) */ |
| 30 | struct clk *ahbix_clk; |
| 31 | |
| 32 | /* MI2S system clock */ |
| 33 | struct clk *mi2s_osr_clk; |
| 34 | |
| 35 | /* MI2S bit clock (derived from system clock by a divider */ |
| 36 | struct clk *mi2s_bit_clk; |
| 37 | |
| 38 | /* low-power audio interface (LPAIF) registers */ |
| 39 | void __iomem *lpaif; |
| 40 | |
| 41 | /* regmap backed by the low-power audio interface (LPAIF) registers */ |
| 42 | struct regmap *lpaif_map; |
| 43 | |
| 44 | /* interrupts from the low-power audio interface (LPAIF) */ |
| 45 | int lpaif_irq; |
| 46 | }; |
| 47 | |
| 48 | /* register the platform driver from the CPU DAI driver */ |
| 49 | int asoc_qcom_lpass_platform_register(struct platform_device *); |
| 50 | |
| 51 | #endif /* __LPASS_H__ */ |