// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2018 Renesas Electronics * * Copyright (C) 2016 Atmel * Bo Shen <[email protected]> * * Authors: Bo Shen <[email protected]> * Boris Brezillon <[email protected]> * Wu, Songjun <[email protected]> * * 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/media-bus-format.h> #include <linux/module.h> #include <linux/regmap.h> #include <linux/regulator/consumer.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 … #define SII902X_TPI_PIXEL_REPETITION … #define SII902X_TPI_AVI_PIXEL_REP_BUS_24BIT … #define SII902X_TPI_AVI_PIXEL_REP_RISING_EDGE … #define SII902X_TPI_AVI_PIXEL_REP_4X … #define SII902X_TPI_AVI_PIXEL_REP_2X … #define SII902X_TPI_AVI_PIXEL_REP_NONE … #define SII902X_TPI_CLK_RATIO_HALF … #define SII902X_TPI_CLK_RATIO_1X … #define SII902X_TPI_CLK_RATIO_2X … #define SII902X_TPI_CLK_RATIO_4X … #define SII902X_TPI_AVI_IN_FORMAT … #define SII902X_TPI_AVI_INPUT_BITMODE_12BIT … #define SII902X_TPI_AVI_INPUT_DITHER … #define SII902X_TPI_AVI_INPUT_RANGE_LIMITED … #define SII902X_TPI_AVI_INPUT_RANGE_FULL … #define SII902X_TPI_AVI_INPUT_RANGE_AUTO … #define SII902X_TPI_AVI_INPUT_COLORSPACE_BLACK … #define SII902X_TPI_AVI_INPUT_COLORSPACE_YUV422 … #define SII902X_TPI_AVI_INPUT_COLORSPACE_YUV444 … #define SII902X_TPI_AVI_INPUT_COLORSPACE_RGB … #define SII902X_TPI_AVI_INFOFRAME … #define SII902X_SYS_CTRL_DATA … #define SII902X_SYS_CTRL_PWR_DWN … #define SII902X_SYS_CTRL_AV_MUTE … #define SII902X_SYS_CTRL_DDC_BUS_REQ … #define SII902X_SYS_CTRL_DDC_BUS_GRTD … #define SII902X_SYS_CTRL_OUTPUT_MODE … #define SII902X_SYS_CTRL_OUTPUT_HDMI … #define SII902X_SYS_CTRL_OUTPUT_DVI … #define SII902X_REG_CHIPID(n) … #define SII902X_PWR_STATE_CTRL … #define SII902X_AVI_POWER_STATE_MSK … #define SII902X_AVI_POWER_STATE_D(l) … /* Audio */ #define SII902X_TPI_I2S_ENABLE_MAPPING_REG … #define SII902X_TPI_I2S_CONFIG_FIFO0 … #define SII902X_TPI_I2S_CONFIG_FIFO1 … #define SII902X_TPI_I2S_CONFIG_FIFO2 … #define SII902X_TPI_I2S_CONFIG_FIFO3 … #define SII902X_TPI_I2S_LEFT_RIGHT_SWAP … #define SII902X_TPI_I2S_AUTO_DOWNSAMPLE … #define SII902X_TPI_I2S_SELECT_SD0 … #define SII902X_TPI_I2S_SELECT_SD1 … #define SII902X_TPI_I2S_SELECT_SD2 … #define SII902X_TPI_I2S_SELECT_SD3 … #define SII902X_TPI_I2S_FIFO_ENABLE … #define SII902X_TPI_I2S_INPUT_CONFIG_REG … #define SII902X_TPI_I2S_FIRST_BIT_SHIFT_YES … #define SII902X_TPI_I2S_FIRST_BIT_SHIFT_NO … #define SII902X_TPI_I2S_SD_DIRECTION_MSB_FIRST … #define SII902X_TPI_I2S_SD_DIRECTION_LSB_FIRST … #define SII902X_TPI_I2S_SD_JUSTIFY_LEFT … #define SII902X_TPI_I2S_SD_JUSTIFY_RIGHT … #define SII902X_TPI_I2S_WS_POLARITY_LOW … #define SII902X_TPI_I2S_WS_POLARITY_HIGH … #define SII902X_TPI_I2S_MCLK_MULTIPLIER_128 … #define SII902X_TPI_I2S_MCLK_MULTIPLIER_256 … #define SII902X_TPI_I2S_MCLK_MULTIPLIER_384 … #define SII902X_TPI_I2S_MCLK_MULTIPLIER_512 … #define SII902X_TPI_I2S_MCLK_MULTIPLIER_768 … #define SII902X_TPI_I2S_MCLK_MULTIPLIER_1024 … #define SII902X_TPI_I2S_MCLK_MULTIPLIER_1152 … #define SII902X_TPI_I2S_MCLK_MULTIPLIER_192 … #define SII902X_TPI_I2S_SCK_EDGE_FALLING … #define SII902X_TPI_I2S_SCK_EDGE_RISING … #define SII902X_TPI_I2S_STRM_HDR_BASE … #define SII902X_TPI_I2S_STRM_HDR_SIZE … #define SII902X_TPI_AUDIO_CONFIG_BYTE2_REG … #define SII902X_TPI_AUDIO_CODING_STREAM_HEADER … #define SII902X_TPI_AUDIO_CODING_PCM … #define SII902X_TPI_AUDIO_CODING_AC3 … #define SII902X_TPI_AUDIO_CODING_MPEG1 … #define SII902X_TPI_AUDIO_CODING_MP3 … #define SII902X_TPI_AUDIO_CODING_MPEG2 … #define SII902X_TPI_AUDIO_CODING_AAC … #define SII902X_TPI_AUDIO_CODING_DTS … #define SII902X_TPI_AUDIO_CODING_ATRAC … #define SII902X_TPI_AUDIO_MUTE_DISABLE … #define SII902X_TPI_AUDIO_MUTE_ENABLE … #define SII902X_TPI_AUDIO_LAYOUT_2_CHANNELS … #define SII902X_TPI_AUDIO_LAYOUT_8_CHANNELS … #define SII902X_TPI_AUDIO_INTERFACE_DISABLE … #define SII902X_TPI_AUDIO_INTERFACE_SPDIF … #define SII902X_TPI_AUDIO_INTERFACE_I2S … #define SII902X_TPI_AUDIO_CONFIG_BYTE3_REG … #define SII902X_TPI_AUDIO_FREQ_STREAM … #define SII902X_TPI_AUDIO_FREQ_32KHZ … #define SII902X_TPI_AUDIO_FREQ_44KHZ … #define SII902X_TPI_AUDIO_FREQ_48KHZ … #define SII902X_TPI_AUDIO_FREQ_88KHZ … #define SII902X_TPI_AUDIO_FREQ_96KHZ … #define SII902X_TPI_AUDIO_FREQ_176KHZ … #define SII902X_TPI_AUDIO_FREQ_192KHZ … #define SII902X_TPI_AUDIO_SAMPLE_SIZE_STREAM … #define SII902X_TPI_AUDIO_SAMPLE_SIZE_16 … #define SII902X_TPI_AUDIO_SAMPLE_SIZE_20 … #define SII902X_TPI_AUDIO_SAMPLE_SIZE_24 … #define SII902X_TPI_AUDIO_CONFIG_BYTE4_REG … #define SII902X_INT_ENABLE … #define SII902X_INT_STATUS … #define SII902X_HOTPLUG_EVENT … #define SII902X_PLUGGED_STATUS … #define SII902X_REG_TPI_RQB … /* Indirect internal register access */ #define SII902X_IND_SET_PAGE … #define SII902X_IND_OFFSET … #define SII902X_IND_VALUE … #define SII902X_TPI_MISC_INFOFRAME_BASE … #define SII902X_TPI_MISC_INFOFRAME_END … #define SII902X_TPI_MISC_INFOFRAME_SIZE … #define SII902X_I2C_BUS_ACQUISITION_TIMEOUT_MS … #define SII902X_AUDIO_PORT_INDEX … /* * The maximum resolution supported by the HDMI bridge is 1080p@60Hz * and 1920x1200 requiring a pixel clock of 165MHz and the minimum * resolution supported is 480p@60Hz requiring a pixel clock of 25MHz */ #define SII902X_MIN_PIXEL_CLOCK_KHZ … #define SII902X_MAX_PIXEL_CLOCK_KHZ … struct sii902x { … }; static int sii902x_read_unlocked(struct i2c_client *i2c, u8 reg, u8 *val) { … } static int sii902x_write_unlocked(struct i2c_client *i2c, u8 reg, u8 val) { … } static int sii902x_update_bits_unlocked(struct i2c_client *i2c, u8 reg, u8 mask, u8 val) { … } static inline struct sii902x *bridge_to_sii902x(struct drm_bridge *bridge) { … } static inline struct sii902x *connector_to_sii902x(struct drm_connector *con) { … } static void sii902x_reset(struct sii902x *sii902x) { … } static enum drm_connector_status sii902x_detect(struct sii902x *sii902x) { … } static enum drm_connector_status sii902x_connector_detect(struct drm_connector *connector, bool force) { … } static const struct drm_connector_funcs sii902x_connector_funcs = …; static const struct drm_edid *sii902x_edid_read(struct sii902x *sii902x, struct drm_connector *connector) { … } static int sii902x_get_modes(struct drm_connector *connector) { … } static const struct drm_connector_helper_funcs sii902x_connector_helper_funcs = …; static void sii902x_bridge_atomic_disable(struct drm_bridge *bridge, struct drm_bridge_state *old_bridge_state) { … } static void sii902x_bridge_atomic_enable(struct drm_bridge *bridge, struct drm_bridge_state *old_bridge_state) { … } static void sii902x_bridge_mode_set(struct drm_bridge *bridge, const struct drm_display_mode *mode, const struct drm_display_mode *adj) { … } static int sii902x_bridge_attach(struct drm_bridge *bridge, enum drm_bridge_attach_flags flags) { … } static enum drm_connector_status sii902x_bridge_detect(struct drm_bridge *bridge) { … } static const struct drm_edid *sii902x_bridge_edid_read(struct drm_bridge *bridge, struct drm_connector *connector) { … } static u32 *sii902x_bridge_atomic_get_input_bus_fmts(struct drm_bridge *bridge, struct drm_bridge_state *bridge_state, struct drm_crtc_state *crtc_state, struct drm_connector_state *conn_state, u32 output_fmt, unsigned int *num_input_fmts) { … } static int sii902x_bridge_atomic_check(struct drm_bridge *bridge, struct drm_bridge_state *bridge_state, struct drm_crtc_state *crtc_state, struct drm_connector_state *conn_state) { … } static enum drm_mode_status sii902x_bridge_mode_valid(struct drm_bridge *bridge, const struct drm_display_info *info, const struct drm_display_mode *mode) { … } static const struct drm_bridge_funcs sii902x_bridge_funcs = …; static int sii902x_mute(struct sii902x *sii902x, bool mute) { … } static const int sii902x_mclk_div_table[] = …; static int sii902x_select_mclk_div(u8 *i2s_config_reg, unsigned int rate, unsigned int mclk) { … } static const struct sii902x_sample_freq { … } sii902x_sample_freq[] = …; static int sii902x_audio_hw_params(struct device *dev, void *data, struct hdmi_codec_daifmt *daifmt, struct hdmi_codec_params *params) { … } static void sii902x_audio_shutdown(struct device *dev, void *data) { … } static int sii902x_audio_mute(struct device *dev, void *data, bool enable, int direction) { … } static int sii902x_audio_get_eld(struct device *dev, void *data, uint8_t *buf, size_t len) { … } static int sii902x_audio_get_dai_id(struct snd_soc_component *component, struct device_node *endpoint) { … } static const struct hdmi_codec_ops sii902x_audio_codec_ops = …; static int sii902x_audio_codec_init(struct sii902x *sii902x, struct device *dev) { … } static const struct regmap_range sii902x_volatile_ranges[] = …; static const struct regmap_access_table sii902x_volatile_table = …; static const struct regmap_config sii902x_regmap_config = …; static irqreturn_t sii902x_interrupt(int irq, void *data) { … } /* * The purpose of sii902x_i2c_bypass_select is to enable the pass through * mode of the HDMI transmitter. Do not use regmap from within this function, * only use sii902x_*_unlocked functions to read/modify/write registers. * We are holding the parent adapter lock here, keep this in mind before * adding more i2c transactions. * * Also, since SII902X_SYS_CTRL_DATA is used with regmap_update_bits elsewhere * in this driver, we need to make sure that we only touch 0x1A[2:1] from * within sii902x_i2c_bypass_select and sii902x_i2c_bypass_deselect, and that * we leave the remaining bits as we have found them. */ static int sii902x_i2c_bypass_select(struct i2c_mux_core *mux, u32 chan_id) { … } /* * The purpose of sii902x_i2c_bypass_deselect is to disable the pass through * mode of the HDMI transmitter. Do not use regmap from within this function, * only use sii902x_*_unlocked functions to read/modify/write registers. * We are holding the parent adapter lock here, keep this in mind before * adding more i2c transactions. * * Also, since SII902X_SYS_CTRL_DATA is used with regmap_update_bits elsewhere * in this driver, we need to make sure that we only touch 0x1A[2:1] from * within sii902x_i2c_bypass_select and sii902x_i2c_bypass_deselect, and that * we leave the remaining bits as we have found them. */ static int sii902x_i2c_bypass_deselect(struct i2c_mux_core *mux, u32 chan_id) { … } static const struct drm_bridge_timings default_sii902x_timings = …; static int sii902x_init(struct sii902x *sii902x) { … } static int sii902x_probe(struct i2c_client *client) { … } static void sii902x_remove(struct i2c_client *client) { … } static const struct of_device_id sii902x_dt_ids[] = …; MODULE_DEVICE_TABLE(of, sii902x_dt_ids); static const struct i2c_device_id sii902x_i2c_ids[] = …; MODULE_DEVICE_TABLE(i2c, sii902x_i2c_ids); static struct i2c_driver sii902x_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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