linux-imx

// SPDX-License-Identifier: GPL-2.0

/*

 * Maxim Integrated MAX2175 RF to Bits tuner driver

 *

 * This driver & most of the hard coded values are based on the reference

 * application delivered by Maxim for this device.

 *

 * Copyright (C) 2016 Maxim Integrated Products

 * Copyright (C) 2017 Renesas Electronics Corporation

 */

​

#include <linux/clk.h>

#include <linux/delay.h>

#include <linux/errno.h>

#include <linux/i2c.h>

#include <linux/kernel.h>

#include <linux/math64.h>

#include <linux/max2175.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/regmap.h>

#include <linux/slab.h>

#include <media/v4l2-ctrls.h>

#include <media/v4l2-device.h>

​

#include "max2175.h"

​

#define DRIVER_NAME "max2175"

​

#define mxm_dbg(ctx, fmt, arg...) dev_dbg(&ctx->client->dev, fmt, ## arg)

#define mxm_err(ctx, fmt, arg...) dev_err(&ctx->client->dev, fmt, ## arg)

​

/* Rx mode */

struct max2175_rxmode {

    enum max2175_band band;     /* Associated band */

    u32 freq;           /* Default freq in Hz */

    u8 i2s_word_size;       /* Bit value */

};

​

/* Register map to define preset values */

struct max2175_reg_map {

    u8 idx;             /* Register index */

    u8 val;             /* Register value */

};

​

static const struct max2175_rxmode eu_rx_modes[] = {

    /* EU modes */

    [MAX2175_EU_FM_1_2] = { MAX2175_BAND_FM, 98256000, 1 },

    [MAX2175_DAB_1_2]   = { MAX2175_BAND_VHF, 182640000, 0 },

};

​

static const struct max2175_rxmode na_rx_modes[] = {

    /* NA modes */

    [MAX2175_NA_FM_1_0] = { MAX2175_BAND_FM, 98255520, 1 },

    [MAX2175_NA_FM_2_0] = { MAX2175_BAND_FM, 98255520, 6 },

};

​

/*

 * Preset values:

 * Based on Maxim MAX2175 Register Table revision: 130p10

 */

static const u8 full_fm_eu_1p0[] = {

    0x15, 0x04, 0xb8, 0xe3, 0x35, 0x18, 0x7c, 0x00,

    0x00, 0x7d, 0x40, 0x08, 0x70, 0x7a, 0x88, 0x91,

    0x61, 0x61, 0x61, 0x61, 0x5a, 0x0f, 0x34, 0x1c,

    0x14, 0x88, 0x33, 0x02, 0x00, 0x09, 0x00, 0x65,

    0x9f, 0x2b, 0x80, 0x00, 0x95, 0x05, 0x2c, 0x00,

    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40,

    0x4a, 0x08, 0xa8, 0x0e, 0x0e, 0x2f, 0x7e, 0x00,

    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

    0x00, 0x00, 0x00, 0x00, 0x00, 0xab, 0x5e, 0xa9,

    0xae, 0xbb, 0x57, 0x18, 0x3b, 0x03, 0x3b, 0x64,

    0x40, 0x60, 0x00, 0x2a, 0xbf, 0x3f, 0xff, 0x9f,

    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x00,

    0xff, 0xfc, 0xef, 0x1c, 0x40, 0x00, 0x00, 0x02,

    0x00, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00,

    0x00, 0x00, 0x00, 0x00, 0x00, 0xac, 0x40, 0x00,

    0x00, 0x00, 0x00, 0x00, 0x00, 0x75, 0x00, 0x00,

    0x00, 0x47, 0x00, 0x00, 0x11, 0x3f, 0x22, 0x00,

    0xf1, 0x00, 0x41, 0x03, 0xb0, 0x00, 0x00, 0x00,

    0x1b,

};

​

static const u8 full_fm_na_1p0[] = {

    0x13, 0x08, 0x8d, 0xc0, 0x35, 0x18, 0x7d, 0x3f,

    0x7d, 0x75, 0x40, 0x08, 0x70, 0x7a, 0x88, 0x91,

    0x61, 0x61, 0x61, 0x61, 0x5c, 0x0f, 0x34, 0x1c,

    0x14, 0x88, 0x33, 0x02, 0x00, 0x01, 0x00, 0x65,

    0x9f, 0x2b, 0x80, 0x00, 0x95, 0x05, 0x2c, 0x00,

    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40,

    0x4a, 0x08, 0xa8, 0x0e, 0x0e, 0xaf, 0x7e, 0x00,

    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,