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|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2018 Renesas Electronics
*
* Copyright (C) 2016 Atmel
* Bo Shen <voice.shen@atmel.com>
*
* Authors: Bo Shen <voice.shen@atmel.com>
* Boris Brezillon <boris.brezillon@free-electrons.com>
* Wu, Songjun <Songjun.Wu@atmel.com>
*
* Copyright (C) 2010-2011 Freescale Semiconductor, Inc. All Rights Reserved.
*/
#include <linux/gpio/consumer.h>
#include <linux/i2c-mux.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/clk.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_bridge.h>
#include <drm/drm_drv.h>
#include <drm/drm_edid.h>
#include <drm/drm_print.h>
#include <drm/drm_probe_helper.h>
#include <sound/hdmi-codec.h>
#define SII902X_TPI_VIDEO_DATA 0x0
#define SII902X_TPI_PIXEL_REPETITION 0x8
#define SII902X_TPI_AVI_PIXEL_REP_BUS_24BIT BIT(5)
#define SII902X_TPI_AVI_PIXEL_REP_RISING_EDGE BIT(4)
#define SII902X_TPI_AVI_PIXEL_REP_4X 3
#define SII902X_TPI_AVI_PIXEL_REP_2X 1
#define SII902X_TPI_AVI_PIXEL_REP_NONE 0
#define SII902X_TPI_CLK_RATIO_HALF (0 << 6)
#define SII902X_TPI_CLK_RATIO_1X (1 << 6)
#define SII902X_TPI_CLK_RATIO_2X (2 << 6)
#define SII902X_TPI_CLK_RATIO_4X (3 << 6)
#define SII902X_TPI_AVI_IN_FORMAT 0x9
#define SII902X_TPI_AVI_INPUT_BITMODE_12BIT BIT(7)
#define SII902X_TPI_AVI_INPUT_DITHER BIT(6)
#define SII902X_TPI_AVI_INPUT_RANGE_LIMITED (2 << 2)
#define SII902X_TPI_AVI_INPUT_RANGE_FULL (1 << 2)
#define SII902X_TPI_AVI_INPUT_RANGE_AUTO (0 << 2)
#define SII902X_TPI_AVI_INPUT_COLORSPACE_BLACK (3 << 0)
#define SII902X_TPI_AVI_INPUT_COLORSPACE_YUV422 (2 << 0)
#define SII902X_TPI_AVI_INPUT_COLORSPACE_YUV444 (1 << 0)
#define SII902X_TPI_AVI_INPUT_COLORSPACE_RGB (0 << 0)
#define SII902X_TPI_AVI_INFOFRAME 0x0c
#define SII902X_SYS_CTRL_DATA 0x1a
#define SII902X_SYS_CTRL_PWR_DWN BIT(4)
#define SII902X_SYS_CTRL_AV_MUTE BIT(3)
#define SII902X_SYS_CTRL_DDC_BUS_REQ BIT(2)
#define SII902X_SYS_CTRL_DDC_BUS_GRTD BIT(1)
#define SII902X_SYS_CTRL_OUTPUT_MODE BIT(0)
#define SII902X_SYS_CTRL_OUTPUT_HDMI 1
#define SII902X_SYS_CTRL_OUTPUT_DVI 0
#define SII902X_REG_CHIPID(n) (0x1b + (n))
#define SII902X_PWR_STATE_CTRL 0x1e
#define SII902X_AVI_POWER_STATE_MSK GENMASK(1, 0)
#define SII902X_AVI_POWER_STATE_D(l) ((l) & SII902X_AVI_POWER_STATE_MSK)
/* Audio */
#define SII902X_TPI_I2S_ENABLE_MAPPING_REG 0x1f
#define SII902X_TPI_I2S_CONFIG_FIFO0 (0 << 0)
#define SII902X_TPI_I2S_CONFIG_FIFO1 (1 << 0)
#define SII902X_TPI_I2S_CONFIG_FIFO2 (2 << 0)
#define SII902X_TPI_I2S_CONFIG_FIFO3 (3 << 0)
#define SII902X_TPI_I2S_LEFT_RIGHT_SWAP (1 << 2)
#define SII902X_TPI_I2S_AUTO_DOWNSAMPLE (1 << 3)
#define SII902X_TPI_I2S_SELECT_SD0 (0 << 4)
#define SII902X_TPI_I2S_SELECT_SD1 (1 << 4)
#define SII902X_TPI_I2S_SELECT_SD2 (2 << 4)
#define SII902X_TPI_I2S_SELECT_SD3 (3 << 4)
#define SII902X_TPI_I2S_FIFO_ENABLE (1 << 7)
#define SII902X_TPI_I2S_INPUT_CONFIG_REG 0x20
#define SII902X_TPI_I2S_FIRST_BIT_SHIFT_YES (0 << 0)
#define SII902X_TPI_I2S_FIRST_BIT_SHIFT_NO (1 << 0)
#define SII902X_TPI_I2S_SD_DIRECTION_MSB_FIRST (0 << 1)
#define SII902X_TPI_I2S_SD_DIRECTION_LSB_FIRST (1 << 1)
#define SII902X_TPI_I2S_SD_JUSTIFY_LEFT (0 << 2)
#define SII902X_TPI_I2S_SD_JUSTIFY_RIGHT (1 << 2)
#define SII902X_TPI_I2S_WS_POLARITY_LOW (0 << 3)
#define SII902X_TPI_I2S_WS_POLARITY_HIGH (1 << 3)
#define SII902X_TPI_I2S_MCLK_MULTIPLIER_128 (0 << 4)
#define SII902X_TPI_I2S_MCLK_MULTIPLIER_256 (1 << 4)
#define SII902X_TPI_I2S_MCLK_MULTIPLIER_384 (2 << 4)
#define SII902X_TPI_I2S_MCLK_MULTIPLIER_512 (3 << 4)
#define SII902X_TPI_I2S_MCLK_MULTIPLIER_768 (4 << 4)
#define SII902X_TPI_I2S_MCLK_MULTIPLIER_1024 (5 << 4)
#define SII902X_TPI_I2S_MCLK_MULTIPLIER_1152 (6 << 4)
#define SII902X_TPI_I2S_MCLK_MULTIPLIER_192 (7 << 4)
#define SII902X_TPI_I2S_SCK_EDGE_FALLING (0 << 7)
#define SII902X_TPI_I2S_SCK_EDGE_RISING (1 << 7)
#define SII902X_TPI_I2S_STRM_HDR_BASE 0x21
#define SII902X_TPI_I2S_STRM_HDR_SIZE 5
#define SII902X_TPI_AUDIO_CONFIG_BYTE2_REG 0x26
#define SII902X_TPI_AUDIO_CODING_STREAM_HEADER (0 << 0)
#define SII902X_TPI_AUDIO_CODING_PCM (1 << 0)
#define SII902X_TPI_AUDIO_CODING_AC3 (2 << 0)
#define SII902X_TPI_AUDIO_CODING_MPEG1 (3 << 0)
#define SII902X_TPI_AUDIO_CODING_MP3 (4 << 0)
#define SII902X_TPI_AUDIO_CODING_MPEG2 (5 << 0)
#define SII902X_TPI_AUDIO_CODING_AAC (6 << 0)
#define SII902X_TPI_AUDIO_CODING_DTS (7 << 0)
#define SII902X_TPI_AUDIO_CODING_ATRAC (8 << 0)
#define SII902X_TPI_AUDIO_MUTE_DISABLE (0 << 4)
#define SII902X_TPI_AUDIO_MUTE_ENABLE (1 << 4)
#define SII902X_TPI_AUDIO_LAYOUT_2_CHANNELS (0 << 5)
#define SII902X_TPI_AUDIO_LAYOUT_8_CHANNELS (1 << 5)
#define SII902X_TPI_AUDIO_INTERFACE_DISABLE (0 << 6)
#define SII902X_TPI_AUDIO_INTERFACE_SPDIF (1 << 6)
#define SII902X_TPI_AUDIO_INTERFACE_I2S (2 << 6)
#define SII902X_TPI_AUDIO_CONFIG_BYTE3_REG 0x27
#define SII902X_TPI_AUDIO_FREQ_STREAM (0 << 3)
#define SII902X_TPI_AUDIO_FREQ_32KHZ (1 << 3)
#define SII902X_TPI_AUDIO_FREQ_44KHZ (2 << 3)
#define SII902X_TPI_AUDIO_FREQ_48KHZ (3 << 3)
#define SII902X_TPI_AUDIO_FREQ_88KHZ (4 << 3)
#define SII902X_TPI_AUDIO_FREQ_96KHZ (5 << 3)
#define SII902X_TPI_AUDIO_FREQ_176KHZ (6 << 3)
#define SII902X_TPI_AUDIO_FREQ_192KHZ (7 << 3)
#define SII902X_TPI_AUDIO_SAMPLE_SIZE_STREAM (0 << 6)
#define SII902X_TPI_AUDIO_SAMPLE_SIZE_16 (1 << 6)
#define SII902X_TPI_AUDIO_SAMPLE_SIZE_20 (2 << 6)
#define SII902X_TPI_AUDIO_SAMPLE_SIZE_24 (3 << 6)
#define SII902X_TPI_AUDIO_CONFIG_BYTE4_REG 0x28
#define SII902X_INT_ENABLE 0x3c
#define SII902X_INT_STATUS 0x3d
#define SII902X_HOTPLUG_EVENT BIT(0)
#define SII902X_PLUGGED_STATUS BIT(2)
#define SII902X_REG_TPI_RQB 0xc7
/* Indirect internal register access */
#define SII902X_IND_SET_PAGE 0xbc
#define SII902X_IND_OFFSET 0xbd
#define SII902X_IND_VALUE 0xbe
#define SII902X_TPI_MISC_INFOFRAME_BASE 0xbf
#define SII902X_TPI_MISC_INFOFRAME_END 0xde
#define SII902X_TPI_MISC_INFOFRAME_SIZE \
(SII902X_TPI_MISC_INFOFRAME_END - SII902X_TPI_MISC_INFOFRAME_BASE)
#define SII902X_I2C_BUS_ACQUISITION_TIMEOUT_MS 500
#define SII902X_AUDIO_PORT_INDEX 3
struct sii902x {
struct i2c_client *i2c;
struct regmap *regmap;
struct drm_bridge bridge;
struct drm_connector connector;
struct gpio_desc *reset_gpio;
struct i2c_mux_core *i2cmux;
/*
* Mutex protects audio and video functions from interfering
* each other, by keeping their i2c command sequences atomic.
*/
struct mutex mutex;
struct sii902x_audio {
struct platform_device *pdev;
struct clk *mclk;
u32 i2s_fifo_sequence[4];
} audio;
};
static int sii902x_read_unlocked(struct i2c_client *i2c, u8 reg, u8 *val)
{
union i2c_smbus_data data;
int ret;
ret = __i2c_smbus_xfer(i2c->adapter, i2c->addr, i2c->flags,
I2C_SMBUS_READ, reg, I2C_SMBUS_BYTE_DATA, &data);
if (ret < 0)
return ret;
*val = data.byte;
return 0;
}
static int sii902x_write_unlocked(struct i2c_client *i2c, u8 reg, u8 val)
{
union i2c_smbus_data data;
data.byte = val;
return __i2c_smbus_xfer(i2c->adapter, i2c->addr, i2c->flags,
I2C_SMBUS_WRITE, reg, I2C_SMBUS_BYTE_DATA,
&data);
}
static int sii902x_update_bits_unlocked(struct i2c_client *i2c, u8 reg, u8 mask,
u8 val)
{
int ret;
u8 status;
ret = sii902x_read_unlocked(i2c,
|