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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* tegra186_dspk.h - Definitions for Tegra186 DSPK driver
*
* Copyright (c) 2020 NVIDIA CORPORATION. All rights reserved.
*
*/
#ifndef __TEGRA186_DSPK_H__
#define __TEGRA186_DSPK_H__
/* Register offsets from DSPK BASE */
#define TEGRA186_DSPK_RX_STATUS 0x0c
#define TEGRA186_DSPK_RX_INT_STATUS 0x10
#define TEGRA186_DSPK_RX_INT_MASK 0x14
#define TEGRA186_DSPK_RX_INT_SET 0x18
#define TEGRA186_DSPK_RX_INT_CLEAR 0x1c
#define TEGRA186_DSPK_RX_CIF_CTRL 0x20
#define TEGRA186_DSPK_ENABLE 0x40
#define TEGRA186_DSPK_SOFT_RESET 0x44
#define TEGRA186_DSPK_CG 0x48
#define TEGRA186_DSPK_STATUS 0x4c
#define TEGRA186_DSPK_INT_STATUS 0x50
#define TEGRA186_DSPK_CORE_CTRL 0x60
#define TEGRA186_DSPK_CODEC_CTRL 0x64
/* DSPK CORE CONTROL fields */
#define CH_SEL_SHIFT 8
#define TEGRA186_DSPK_CHANNEL_SELECT_MASK (0x3 << CH_SEL_SHIFT)
#define DSPK_OSR_SHIFT 4
#define TEGRA186_DSPK_OSR_MASK (0x3 << DSPK_OSR_SHIFT)
#define LRSEL_POL_SHIFT 0
#define TEGRA186_DSPK_CTRL_LRSEL_POLARITY_MASK (0x1 << LRSEL_POL_SHIFT)
#define TEGRA186_DSPK_RX_FIFO_DEPTH 64
#define DSPK_OSR_FACTOR 32
/* DSPK interface clock ratio */
#define DSPK_CLK_RATIO 4
enum tegra_dspk_osr {
DSPK_OSR_32,
DSPK_OSR_64,
DSPK_OSR_128,
DSPK_OSR_256,
};
enum tegra_dspk_ch_sel {
DSPK_CH_SELECT_LEFT,
DSPK_CH_SELECT_RIGHT,
DSPK_CH_SELECT_STEREO,
};
enum tegra_dspk_lrsel {
DSPK_LRSEL_LEFT,
DSPK_LRSEL_RIGHT,
};
struct tegra186_dspk {
unsigned int rx_fifo_th;
unsigned int osr_val;
unsigned int lrsel;
unsigned int ch_sel;
unsigned int mono_to_stereo;
unsigned int stereo_to_mono;
struct clk *clk_dspk;
struct regmap *regmap;
};
#endif
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