alistair23-linux/sound/soc/qcom/lpass.h
Kenneth Westfield cd59f13823 ASoC: qcom: add LPASS header files
Add the LPASS header files for ipq806x SOC.  This
includes the register definitions for the ipq806x
LPAIF, and the structure definition for the driver
data.

Signed-off-by: Kenneth Westfield <kwestfie@codeaurora.org>
Acked-by: Banajit Goswami <bgoswami@codeaurora.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-03-05 17:13:16 +00:00

52 lines
1.5 KiB
C

/*
* Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* lpass.h - Definitions for the QTi LPASS
*/
#ifndef __LPASS_H__
#define __LPASS_H__
#include <linux/clk.h>
#include <linux/compiler.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#define LPASS_AHBIX_CLOCK_FREQUENCY 131072000
/* Both the CPU DAI and platform drivers will access this data */
struct lpass_data {
/* AHB-I/X bus clocks inside the low-power audio subsystem (LPASS) */
struct clk *ahbix_clk;
/* MI2S system clock */
struct clk *mi2s_osr_clk;
/* MI2S bit clock (derived from system clock by a divider */
struct clk *mi2s_bit_clk;
/* low-power audio interface (LPAIF) registers */
void __iomem *lpaif;
/* regmap backed by the low-power audio interface (LPAIF) registers */
struct regmap *lpaif_map;
/* interrupts from the low-power audio interface (LPAIF) */
int lpaif_irq;
};
/* register the platform driver from the CPU DAI driver */
int asoc_qcom_lpass_platform_register(struct platform_device *);
#endif /* __LPASS_H__ */