| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Copyright (c) 2014 MediaTek Inc. |
| * Author: Jie Qiu <[email protected]> |
| */ |
| |
| #include <linux/arm-smccc.h> |
| #include <linux/clk.h> |
| #include <linux/delay.h> |
| #include <linux/hdmi.h> |
| #include <linux/i2c.h> |
| #include <linux/io.h> |
| #include <linux/kernel.h> |
| #include <linux/mfd/syscon.h> |
| #include <linux/module.h> |
| #include <linux/mutex.h> |
| #include <linux/of_platform.h> |
| #include <linux/of.h> |
| #include <linux/of_gpio.h> |
| #include <linux/of_graph.h> |
| #include <linux/phy/phy.h> |
| #include <linux/platform_device.h> |
| #include <linux/regmap.h> |
| |
| #include <sound/hdmi-codec.h> |
| |
| #include <drm/drm_atomic_helper.h> |
| #include <drm/drm_bridge.h> |
| #include <drm/drm_crtc.h> |
| #include <drm/drm_edid.h> |
| #include <drm/drm_print.h> |
| #include <drm/drm_probe_helper.h> |
| |
| #include "mtk_cec.h" |
| #include "mtk_hdmi.h" |
| #include "mtk_hdmi_regs.h" |
| |
| #define NCTS_BYTES 7 |
| |
| enum mtk_hdmi_clk_id { |
| MTK_HDMI_CLK_HDMI_PIXEL, |
| MTK_HDMI_CLK_HDMI_PLL, |
| MTK_HDMI_CLK_AUD_BCLK, |
| MTK_HDMI_CLK_AUD_SPDIF, |
| MTK_HDMI_CLK_COUNT |
| }; |
| |
| enum hdmi_aud_input_type { |
| HDMI_AUD_INPUT_I2S = 0, |
| HDMI_AUD_INPUT_SPDIF, |
| }; |
| |
| enum hdmi_aud_i2s_fmt { |
| HDMI_I2S_MODE_RJT_24BIT = 0, |
| HDMI_I2S_MODE_RJT_16BIT, |
| HDMI_I2S_MODE_LJT_24BIT, |
| HDMI_I2S_MODE_LJT_16BIT, |
| HDMI_I2S_MODE_I2S_24BIT, |
| HDMI_I2S_MODE_I2S_16BIT |
| }; |
| |
| enum hdmi_aud_mclk { |
| HDMI_AUD_MCLK_128FS, |
| HDMI_AUD_MCLK_192FS, |
| HDMI_AUD_MCLK_256FS, |
| HDMI_AUD_MCLK_384FS, |
| HDMI_AUD_MCLK_512FS, |
| HDMI_AUD_MCLK_768FS, |
| HDMI_AUD_MCLK_1152FS, |
| }; |
| |
| enum hdmi_aud_channel_type { |
| HDMI_AUD_CHAN_TYPE_1_0 = 0, |
| HDMI_AUD_CHAN_TYPE_1_1, |
| HDMI_AUD_CHAN_TYPE_2_0, |
| HDMI_AUD_CHAN_TYPE_2_1, |
| HDMI_AUD_CHAN_TYPE_3_0, |
| HDMI_AUD_CHAN_TYPE_3_1, |
| HDMI_AUD_CHAN_TYPE_4_0, |
| HDMI_AUD_CHAN_TYPE_4_1, |
| HDMI_AUD_CHAN_TYPE_5_0, |
| HDMI_AUD_CHAN_TYPE_5_1, |
| HDMI_AUD_CHAN_TYPE_6_0, |
| HDMI_AUD_CHAN_TYPE_6_1, |
| HDMI_AUD_CHAN_TYPE_7_0, |
| HDMI_AUD_CHAN_TYPE_7_1, |
| HDMI_AUD_CHAN_TYPE_3_0_LRS, |
| HDMI_AUD_CHAN_TYPE_3_1_LRS, |
| HDMI_AUD_CHAN_TYPE_4_0_CLRS, |
| HDMI_AUD_CHAN_TYPE_4_1_CLRS, |
| HDMI_AUD_CHAN_TYPE_6_1_CS, |
| HDMI_AUD_CHAN_TYPE_6_1_CH, |
| HDMI_AUD_CHAN_TYPE_6_1_OH, |
| HDMI_AUD_CHAN_TYPE_6_1_CHR, |
| HDMI_AUD_CHAN_TYPE_7_1_LH_RH, |
| HDMI_AUD_CHAN_TYPE_7_1_LSR_RSR, |
| HDMI_AUD_CHAN_TYPE_7_1_LC_RC, |
| HDMI_AUD_CHAN_TYPE_7_1_LW_RW, |
| HDMI_AUD_CHAN_TYPE_7_1_LSD_RSD, |
| HDMI_AUD_CHAN_TYPE_7_1_LSS_RSS, |
| HDMI_AUD_CHAN_TYPE_7_1_LHS_RHS, |
| HDMI_AUD_CHAN_TYPE_7_1_CS_CH, |
| HDMI_AUD_CHAN_TYPE_7_1_CS_OH, |
| HDMI_AUD_CHAN_TYPE_7_1_CS_CHR, |
| HDMI_AUD_CHAN_TYPE_7_1_CH_OH, |
| HDMI_AUD_CHAN_TYPE_7_1_CH_CHR, |
| HDMI_AUD_CHAN_TYPE_7_1_OH_CHR, |
| HDMI_AUD_CHAN_TYPE_7_1_LSS_RSS_LSR_RSR, |
| HDMI_AUD_CHAN_TYPE_6_0_CS, |
| HDMI_AUD_CHAN_TYPE_6_0_CH, |
| HDMI_AUD_CHAN_TYPE_6_0_OH, |
| HDMI_AUD_CHAN_TYPE_6_0_CHR, |
| HDMI_AUD_CHAN_TYPE_7_0_LH_RH, |
| HDMI_AUD_CHAN_TYPE_7_0_LSR_RSR, |
| HDMI_AUD_CHAN_TYPE_7_0_LC_RC, |
| HDMI_AUD_CHAN_TYPE_7_0_LW_RW, |
| HDMI_AUD_CHAN_TYPE_7_0_LSD_RSD, |
| HDMI_AUD_CHAN_TYPE_7_0_LSS_RSS, |
| HDMI_AUD_CHAN_TYPE_7_0_LHS_RHS, |
| HDMI_AUD_CHAN_TYPE_7_0_CS_CH, |
| HDMI_AUD_CHAN_TYPE_7_0_CS_OH, |
| HDMI_AUD_CHAN_TYPE_7_0_CS_CHR, |
| HDMI_AUD_CHAN_TYPE_7_0_CH_OH, |
| HDMI_AUD_CHAN_TYPE_7_0_CH_CHR, |
| HDMI_AUD_CHAN_TYPE_7_0_OH_CHR, |
| HDMI_AUD_CHAN_TYPE_7_0_LSS_RSS_LSR_RSR, |
| HDMI_AUD_CHAN_TYPE_8_0_LH_RH_CS, |
| HDMI_AUD_CHAN_TYPE_UNKNOWN = 0xFF |
| }; |
| |
| enum hdmi_aud_channel_swap_type { |
| HDMI_AUD_SWAP_LR, |
| HDMI_AUD_SWAP_LFE_CC, |
| HDMI_AUD_SWAP_LSRS, |
| HDMI_AUD_SWAP_RLS_RRS, |
| HDMI_AUD_SWAP_LR_STATUS, |
| }; |
| |
| struct hdmi_audio_param { |
| enum hdmi_audio_coding_type aud_codec; |
| enum hdmi_audio_sample_size aud_sampe_size; |
| enum hdmi_aud_input_type aud_input_type; |
| enum hdmi_aud_i2s_fmt aud_i2s_fmt; |
| enum hdmi_aud_mclk aud_mclk; |
| enum hdmi_aud_channel_type aud_input_chan_type; |
| struct hdmi_codec_params codec_params; |
| }; |
| |
| struct mtk_hdmi_conf { |
| bool tz_disabled; |
| }; |
| |
| struct mtk_hdmi { |
| struct drm_bridge bridge; |
| struct drm_bridge *next_bridge; |
| struct drm_connector conn; |
| struct device *dev; |
| const struct mtk_hdmi_conf *conf; |
| struct phy *phy; |
| struct device *cec_dev; |
| struct i2c_adapter *ddc_adpt; |
| struct clk *clk[MTK_HDMI_CLK_COUNT]; |
| struct drm_display_mode mode; |
| bool dvi_mode; |
| u32 min_clock; |
| u32 max_clock; |
| u32 max_hdisplay; |
| u32 max_vdisplay; |
| u32 ibias; |
| u32 ibias_up; |
| struct regmap *sys_regmap; |
| unsigned int sys_offset; |
| void __iomem *regs; |
| enum hdmi_colorspace csp; |
| struct hdmi_audio_param aud_param; |
| bool audio_enable; |
| bool powered; |
| bool enabled; |
| hdmi_codec_plugged_cb plugged_cb; |
| struct device *codec_dev; |
| struct mutex update_plugged_status_lock; |
| }; |
| |
| static inline struct mtk_hdmi *hdmi_ctx_from_bridge(struct drm_bridge *b) |
| { |
| return container_of(b, struct mtk_hdmi, bridge); |
| } |
| |
| static inline struct mtk_hdmi *hdmi_ctx_from_conn(struct drm_connector *c) |
| { |
| return container_of(c, struct mtk_hdmi, conn); |
| } |
| |
| static u32 mtk_hdmi_read(struct mtk_hdmi *hdmi, u32 offset) |
| { |
| return readl(hdmi->regs + offset); |
| } |
| |
| static void mtk_hdmi_write(struct mtk_hdmi *hdmi, u32 offset, u32 val) |
| { |
| writel(val, hdmi->regs + offset); |
| } |
| |
| static void mtk_hdmi_clear_bits(struct mtk_hdmi *hdmi, u32 offset, u32 bits) |
| { |
| void __iomem *reg = hdmi->regs + offset; |
| u32 tmp; |
| |
| tmp = readl(reg); |
| tmp &= ~bits; |
| writel(tmp, reg); |
| } |
| |
| static void mtk_hdmi_set_bits(struct mtk_hdmi *hdmi, u32 offset, u32 bits) |
| { |
| void __iomem *reg = hdmi->regs + offset; |
| u32 tmp; |
| |
| tmp = readl(reg); |
| tmp |= bits; |
| writel(tmp, reg); |
| } |
| |
| static void mtk_hdmi_mask(struct mtk_hdmi *hdmi, u32 offset, u32 val, u32 mask) |
| { |
| void __iomem *reg = hdmi->regs + offset; |
| u32 tmp; |
| |
| tmp = readl(reg); |
| tmp = (tmp & ~mask) | (val & mask); |
| writel(tmp, reg); |
| } |
| |
| static void mtk_hdmi_hw_vid_black(struct mtk_hdmi *hdmi, bool black) |
| { |
| mtk_hdmi_mask(hdmi, VIDEO_CFG_4, black ? GEN_RGB : NORMAL_PATH, |
| VIDEO_SOURCE_SEL); |
| } |
| |
| static void mtk_hdmi_hw_make_reg_writable(struct mtk_hdmi *hdmi, bool enable) |
| { |
| struct arm_smccc_res res; |
| |
| /* |
| * MT8173 HDMI hardware has an output control bit to enable/disable HDMI |
| * output. This bit can only be controlled in ARM supervisor mode. |
| * The ARM trusted firmware provides an API for the HDMI driver to set |
| * this control bit to enable HDMI output in supervisor mode. |
| */ |
| if (hdmi->conf && hdmi->conf->tz_disabled) |
| regmap_update_bits(hdmi->sys_regmap, |
| hdmi->sys_offset + HDMI_SYS_CFG20, |
| 0x80008005, enable ? 0x80000005 : 0x8000); |
| else |
| arm_smccc_smc(MTK_SIP_SET_AUTHORIZED_SECURE_REG, 0x14000904, |
| 0x80000000, 0, 0, 0, 0, 0, &res); |
| |
| regmap_update_bits(hdmi->sys_regmap, hdmi->sys_offset + HDMI_SYS_CFG20, |
| HDMI_PCLK_FREE_RUN, enable ? HDMI_PCLK_FREE_RUN : 0); |
| regmap_update_bits(hdmi->sys_regmap, hdmi->sys_offset + HDMI_SYS_CFG1C, |
| HDMI_ON | ANLG_ON, enable ? (HDMI_ON | ANLG_ON) : 0); |
| } |
| |
| static void mtk_hdmi_hw_1p4_version_enable(struct mtk_hdmi *hdmi, bool enable) |
| { |
| regmap_update_bits(hdmi->sys_regmap, hdmi->sys_offset + HDMI_SYS_CFG20, |
| HDMI2P0_EN, enable ? 0 : HDMI2P0_EN); |
| } |
| |
| static void mtk_hdmi_hw_aud_mute(struct mtk_hdmi *hdmi) |
| { |
| mtk_hdmi_set_bits(hdmi, GRL_AUDIO_CFG, AUDIO_ZERO); |
| } |
| |
| static void mtk_hdmi_hw_aud_unmute(struct mtk_hdmi *hdmi) |
| { |
| mtk_hdmi_clear_bits(hdmi, GRL_AUDIO_CFG, AUDIO_ZERO); |
| } |
| |
| static void mtk_hdmi_hw_reset(struct mtk_hdmi *hdmi) |
| { |
| regmap_update_bits(hdmi->sys_regmap, hdmi->sys_offset + HDMI_SYS_CFG1C, |
| HDMI_RST, HDMI_RST); |
| regmap_update_bits(hdmi->sys_regmap, hdmi->sys_offset + HDMI_SYS_CFG1C, |
| HDMI_RST, 0); |
| mtk_hdmi_clear_bits(hdmi, GRL_CFG3, CFG3_CONTROL_PACKET_DELAY); |
| regmap_update_bits(hdmi->sys_regmap, hdmi->sys_offset + HDMI_SYS_CFG1C, |
| ANLG_ON, ANLG_ON); |
| } |
| |
| static void mtk_hdmi_hw_enable_notice(struct mtk_hdmi *hdmi, bool enable_notice) |
| { |
| mtk_hdmi_mask(hdmi, GRL_CFG2, enable_notice ? CFG2_NOTICE_EN : 0, |
| CFG2_NOTICE_EN); |
| } |
| |
| static void mtk_hdmi_hw_write_int_mask(struct mtk_hdmi *hdmi, u32 int_mask) |
| { |
| mtk_hdmi_write(hdmi, GRL_INT_MASK, int_mask); |
| } |
| |
| static void mtk_hdmi_hw_enable_dvi_mode(struct mtk_hdmi *hdmi, bool enable) |
| { |
| mtk_hdmi_mask(hdmi, GRL_CFG1, enable ? CFG1_DVI : 0, CFG1_DVI); |
| } |
| |
| static void mtk_hdmi_hw_send_info_frame(struct mtk_hdmi *hdmi, u8 *buffer, |
| u8 len) |
| { |
| u32 ctrl_reg = GRL_CTRL; |
| int i; |
| u8 *frame_data; |
| enum hdmi_infoframe_type frame_type; |
| u8 frame_ver; |
| u8 frame_len; |
| u8 checksum; |
| int ctrl_frame_en = 0; |
| |
| frame_type = *buffer++; |
| frame_ver = *buffer++; |
| frame_len = *buffer++; |
| checksum = *buffer++; |
| frame_data = buffer; |
| |
| dev_dbg(hdmi->dev, |
| "frame_type:0x%x,frame_ver:0x%x,frame_len:0x%x,checksum:0x%x\n", |
| frame_type, frame_ver, frame_len, checksum); |
| |
| switch (frame_type) { |
| case HDMI_INFOFRAME_TYPE_AVI: |
| ctrl_frame_en = CTRL_AVI_EN; |
| ctrl_reg = GRL_CTRL; |
| break; |
| case HDMI_INFOFRAME_TYPE_SPD: |
| ctrl_frame_en = CTRL_SPD_EN; |
| ctrl_reg = GRL_CTRL; |
| break; |
| case HDMI_INFOFRAME_TYPE_AUDIO: |
| ctrl_frame_en = CTRL_AUDIO_EN; |
| ctrl_reg = GRL_CTRL; |
| break; |
| case HDMI_INFOFRAME_TYPE_VENDOR: |
| ctrl_frame_en = VS_EN; |
| ctrl_reg = GRL_ACP_ISRC_CTRL; |
| break; |
| default: |
| dev_err(hdmi->dev, "Unknown infoframe type %d\n", frame_type); |
| return; |
| } |
| mtk_hdmi_clear_bits(hdmi, ctrl_reg, ctrl_frame_en); |
| mtk_hdmi_write(hdmi, GRL_INFOFRM_TYPE, frame_type); |
| mtk_hdmi_write(hdmi, GRL_INFOFRM_VER, frame_ver); |
| mtk_hdmi_write(hdmi, GRL_INFOFRM_LNG, frame_len); |
| |
| mtk_hdmi_write(hdmi, GRL_IFM_PORT, checksum); |
| for (i = 0; i < frame_len; i++) |
| mtk_hdmi_write(hdmi, GRL_IFM_PORT, frame_data[i]); |
| |
| mtk_hdmi_set_bits(hdmi, ctrl_reg, ctrl_frame_en); |
| } |
| |
| static void mtk_hdmi_hw_send_aud_packet(struct mtk_hdmi *hdmi, bool enable) |
| { |
| mtk_hdmi_mask(hdmi, GRL_SHIFT_R2, enable ? 0 : AUDIO_PACKET_OFF, |
| AUDIO_PACKET_OFF); |
| } |
| |
| static void mtk_hdmi_hw_config_sys(struct mtk_hdmi *hdmi) |
| { |
| regmap_update_bits(hdmi->sys_regmap, hdmi->sys_offset + HDMI_SYS_CFG20, |
| HDMI_OUT_FIFO_EN | MHL_MODE_ON, 0); |
| usleep_range(2000, 4000); |
| regmap_update_bits(hdmi->sys_regmap, hdmi->sys_offset + HDMI_SYS_CFG20, |
| HDMI_OUT_FIFO_EN | MHL_MODE_ON, HDMI_OUT_FIFO_EN); |
| } |
| |
| static void mtk_hdmi_hw_set_deep_color_mode(struct mtk_hdmi *hdmi) |
| { |
| regmap_update_bits(hdmi->sys_regmap, hdmi->sys_offset + HDMI_SYS_CFG20, |
| DEEP_COLOR_MODE_MASK | DEEP_COLOR_EN, |
| COLOR_8BIT_MODE); |
| } |
| |
| static void mtk_hdmi_hw_send_av_mute(struct mtk_hdmi *hdmi) |
| { |
| mtk_hdmi_clear_bits(hdmi, GRL_CFG4, CTRL_AVMUTE); |
| usleep_range(2000, 4000); |
| mtk_hdmi_set_bits(hdmi, GRL_CFG4, CTRL_AVMUTE); |
| } |
| |
| static void mtk_hdmi_hw_send_av_unmute(struct mtk_hdmi *hdmi) |
| { |
| mtk_hdmi_mask(hdmi, GRL_CFG4, CFG4_AV_UNMUTE_EN, |
| CFG4_AV_UNMUTE_EN | CFG4_AV_UNMUTE_SET); |
| usleep_range(2000, 4000); |
| mtk_hdmi_mask(hdmi, GRL_CFG4, CFG4_AV_UNMUTE_SET, |
| CFG4_AV_UNMUTE_EN | CFG4_AV_UNMUTE_SET); |
| } |
| |
| static void mtk_hdmi_hw_ncts_enable(struct mtk_hdmi *hdmi, bool on) |
| { |
| mtk_hdmi_mask(hdmi, GRL_CTS_CTRL, on ? 0 : CTS_CTRL_SOFT, |
| CTS_CTRL_SOFT); |
| } |
| |
| static void mtk_hdmi_hw_ncts_auto_write_enable(struct mtk_hdmi *hdmi, |
| bool enable) |
| { |
| mtk_hdmi_mask(hdmi, GRL_CTS_CTRL, enable ? NCTS_WRI_ANYTIME : 0, |
| NCTS_WRI_ANYTIME); |
| } |
| |
| static void mtk_hdmi_hw_msic_setting(struct mtk_hdmi *hdmi, |
| struct drm_display_mode *mode) |
| { |
| mtk_hdmi_clear_bits(hdmi, GRL_CFG4, CFG4_MHL_MODE); |
| |
| if (mode->flags & DRM_MODE_FLAG_INTERLACE && |
| mode->clock == 74250 && |
| mode->vdisplay == 1080) |
| mtk_hdmi_clear_bits(hdmi, GRL_CFG2, CFG2_MHL_DE_SEL); |
| else |
| mtk_hdmi_set_bits(hdmi, GRL_CFG2, CFG2_MHL_DE_SEL); |
| } |
| |
| static void mtk_hdmi_hw_aud_set_channel_swap(struct mtk_hdmi *hdmi, |
| enum hdmi_aud_channel_swap_type swap) |
| { |
| u8 swap_bit; |
| |
| switch (swap) { |
| case HDMI_AUD_SWAP_LR: |
| swap_bit = LR_SWAP; |
| break; |
| case HDMI_AUD_SWAP_LFE_CC: |
| swap_bit = LFE_CC_SWAP; |
| break; |
| case HDMI_AUD_SWAP_LSRS: |
| swap_bit = LSRS_SWAP; |
| break; |
| case HDMI_AUD_SWAP_RLS_RRS: |
| swap_bit = RLS_RRS_SWAP; |
| break; |
| case HDMI_AUD_SWAP_LR_STATUS: |
| swap_bit = LR_STATUS_SWAP; |
| break; |
| default: |
| swap_bit = LFE_CC_SWAP; |
| break; |
| } |
| mtk_hdmi_mask(hdmi, GRL_CH_SWAP, swap_bit, 0xff); |
| } |
| |
| static void mtk_hdmi_hw_aud_set_bit_num(struct mtk_hdmi *hdmi, |
| enum hdmi_audio_sample_size bit_num) |
| { |
| u32 val; |
| |
| switch (bit_num) { |
| case HDMI_AUDIO_SAMPLE_SIZE_16: |
| val = AOUT_16BIT; |
| break; |
| case HDMI_AUDIO_SAMPLE_SIZE_20: |
| val = AOUT_20BIT; |
| break; |
| case HDMI_AUDIO_SAMPLE_SIZE_24: |
| case HDMI_AUDIO_SAMPLE_SIZE_STREAM: |
| val = AOUT_24BIT; |
| break; |
| } |
| |
| mtk_hdmi_mask(hdmi, GRL_AOUT_CFG, val, AOUT_BNUM_SEL_MASK); |
| } |
| |
| static void mtk_hdmi_hw_aud_set_i2s_fmt(struct mtk_hdmi *hdmi, |
| enum hdmi_aud_i2s_fmt i2s_fmt) |
| { |
| u32 val; |
| |
| val = mtk_hdmi_read(hdmi, GRL_CFG0); |
| val &= ~(CFG0_W_LENGTH_MASK | CFG0_I2S_MODE_MASK); |
| |
| switch (i2s_fmt) { |
| case HDMI_I2S_MODE_RJT_24BIT: |
| val |= CFG0_I2S_MODE_RTJ | CFG0_W_LENGTH_24BIT; |
| break; |
| case HDMI_I2S_MODE_RJT_16BIT: |
| val |= CFG0_I2S_MODE_RTJ | CFG0_W_LENGTH_16BIT; |
| break; |
| case HDMI_I2S_MODE_LJT_24BIT: |
| default: |
| val |= CFG0_I2S_MODE_LTJ | CFG0_W_LENGTH_24BIT; |
| break; |
| case HDMI_I2S_MODE_LJT_16BIT: |
| val |= CFG0_I2S_MODE_LTJ | CFG0_W_LENGTH_16BIT; |
| break; |
| case HDMI_I2S_MODE_I2S_24BIT: |
| val |= CFG0_I2S_MODE_I2S | CFG0_W_LENGTH_24BIT; |
| break; |
| case HDMI_I2S_MODE_I2S_16BIT: |
| val |= CFG0_I2S_MODE_I2S | CFG0_W_LENGTH_16BIT; |
| break; |
| } |
| mtk_hdmi_write(hdmi, GRL_CFG0, val); |
| } |
| |
| static void mtk_hdmi_hw_audio_config(struct mtk_hdmi *hdmi, bool dst) |
| { |
| const u8 mask = HIGH_BIT_RATE | DST_NORMAL_DOUBLE | SACD_DST | DSD_SEL; |
| u8 val; |
| |
| /* Disable high bitrate, set DST packet normal/double */ |
| mtk_hdmi_clear_bits(hdmi, GRL_AOUT_CFG, HIGH_BIT_RATE_PACKET_ALIGN); |
| |
| if (dst) |
| val = DST_NORMAL_DOUBLE | SACD_DST; |
| else |
| val = 0; |
| |
| mtk_hdmi_mask(hdmi, GRL_AUDIO_CFG, val, mask); |
| } |
| |
| static void mtk_hdmi_hw_aud_set_i2s_chan_num(struct mtk_hdmi *hdmi, |
| enum hdmi_aud_channel_type channel_type, |
| u8 channel_count) |
| { |
| unsigned int ch_switch; |
| u8 i2s_uv; |
| |
| ch_switch = CH_SWITCH(7, 7) | CH_SWITCH(6, 6) | |
| CH_SWITCH(5, 5) | CH_SWITCH(4, 4) | |
| CH_SWITCH(3, 3) | CH_SWITCH(1, 2) | |
| CH_SWITCH(2, 1) | CH_SWITCH(0, 0); |
| |
| if (channel_count == 2) { |
| i2s_uv = I2S_UV_CH_EN(0); |
| } else if (channel_count == 3 || channel_count == 4) { |
| if (channel_count == 4 && |
| (channel_type == HDMI_AUD_CHAN_TYPE_3_0_LRS || |
| channel_type == HDMI_AUD_CHAN_TYPE_4_0)) |
| i2s_uv = I2S_UV_CH_EN(2) | I2S_UV_CH_EN(0); |
| else |
| i2s_uv = I2S_UV_CH_EN(3) | I2S_UV_CH_EN(2); |
| } else if (channel_count == 6 || channel_count == 5) { |
| if (channel_count == 6 && |
| channel_type != HDMI_AUD_CHAN_TYPE_5_1 && |
| channel_type != HDMI_AUD_CHAN_TYPE_4_1_CLRS) { |
| i2s_uv = I2S_UV_CH_EN(3) | I2S_UV_CH_EN(2) | |
| I2S_UV_CH_EN(1) | I2S_UV_CH_EN(0); |
| } else { |
| i2s_uv = I2S_UV_CH_EN(2) | I2S_UV_CH_EN(1) | |
| I2S_UV_CH_EN(0); |
| } |
| } else if (channel_count == 8 || channel_count == 7) { |
| i2s_uv = I2S_UV_CH_EN(3) | I2S_UV_CH_EN(2) | |
| I2S_UV_CH_EN(1) | I2S_UV_CH_EN(0); |
| } else { |
| i2s_uv = I2S_UV_CH_EN(0); |
| } |
| |
| mtk_hdmi_write(hdmi, GRL_CH_SW0, ch_switch & 0xff); |
| mtk_hdmi_write(hdmi, GRL_CH_SW1, (ch_switch >> 8) & 0xff); |
| mtk_hdmi_write(hdmi, GRL_CH_SW2, (ch_switch >> 16) & 0xff); |
| mtk_hdmi_write(hdmi, GRL_I2S_UV, i2s_uv); |
| } |
| |
| static void mtk_hdmi_hw_aud_set_input_type(struct mtk_hdmi *hdmi, |
| enum hdmi_aud_input_type input_type) |
| { |
| u32 val; |
| |
| val = mtk_hdmi_read(hdmi, GRL_CFG1); |
| if (input_type == HDMI_AUD_INPUT_I2S && |
| (val & CFG1_SPDIF) == CFG1_SPDIF) { |
| val &= ~CFG1_SPDIF; |
| } else if (input_type == HDMI_AUD_INPUT_SPDIF && |
| (val & CFG1_SPDIF) == 0) { |
| val |= CFG1_SPDIF; |
| } |
| mtk_hdmi_write(hdmi, GRL_CFG1, val); |
| } |
| |
| static void mtk_hdmi_hw_aud_set_channel_status(struct mtk_hdmi *hdmi, |
| u8 *channel_status) |
| { |
| int i; |
| |
| for (i = 0; i < 5; i++) { |
| mtk_hdmi_write(hdmi, GRL_I2S_C_STA0 + i * 4, channel_status[i]); |
| mtk_hdmi_write(hdmi, GRL_L_STATUS_0 + i * 4, channel_status[i]); |
| mtk_hdmi_write(hdmi, GRL_R_STATUS_0 + i * 4, channel_status[i]); |
| } |
| for (; i < 24; i++) { |
| mtk_hdmi_write(hdmi, GRL_L_STATUS_0 + i * 4, 0); |
| mtk_hdmi_write(hdmi, GRL_R_STATUS_0 + i * 4, 0); |
| } |
| } |
| |
| static void mtk_hdmi_hw_aud_src_reenable(struct mtk_hdmi *hdmi) |
| { |
| u32 val; |
| |
| val = mtk_hdmi_read(hdmi, GRL_MIX_CTRL); |
| if (val & MIX_CTRL_SRC_EN) { |
| val &= ~MIX_CTRL_SRC_EN; |
| mtk_hdmi_write(hdmi, GRL_MIX_CTRL, val); |
| usleep_range(255, 512); |
| val |= MIX_CTRL_SRC_EN; |
| mtk_hdmi_write(hdmi, GRL_MIX_CTRL, val); |
| } |
| } |
| |
| static void mtk_hdmi_hw_aud_src_disable(struct mtk_hdmi *hdmi) |
| { |
| u32 val; |
| |
| val = mtk_hdmi_read(hdmi, GRL_MIX_CTRL); |
| val &= ~MIX_CTRL_SRC_EN; |
| mtk_hdmi_write(hdmi, GRL_MIX_CTRL, val); |
| mtk_hdmi_write(hdmi, GRL_SHIFT_L1, 0x00); |
| } |
| |
| static void mtk_hdmi_hw_aud_set_mclk(struct mtk_hdmi *hdmi, |
| enum hdmi_aud_mclk mclk) |
| { |
| u32 val; |
| |
| val = mtk_hdmi_read(hdmi, GRL_CFG5); |
| val &= CFG5_CD_RATIO_MASK; |
| |
| switch (mclk) { |
| case HDMI_AUD_MCLK_128FS: |
| val |= CFG5_FS128; |
| break; |
| case HDMI_AUD_MCLK_256FS: |
| val |= CFG5_FS256; |
| break; |
| case HDMI_AUD_MCLK_384FS: |
| val |= CFG5_FS384; |
| break; |
| case HDMI_AUD_MCLK_512FS: |
| val |= CFG5_FS512; |
| break; |
| case HDMI_AUD_MCLK_768FS: |
| val |= CFG5_FS768; |
| break; |
| default: |
| val |= CFG5_FS256; |
| break; |
| } |
| mtk_hdmi_write(hdmi, GRL_CFG5, val); |
| } |
| |
| struct hdmi_acr_n { |
| unsigned int clock; |
| unsigned int n[3]; |
| }; |
| |
| /* Recommended N values from HDMI specification, tables 7-1 to 7-3 */ |
| static const struct hdmi_acr_n hdmi_rec_n_table[] = { |
| /* Clock, N: 32kHz 44.1kHz 48kHz */ |
| { 25175, { 4576, 7007, 6864 } }, |
| { 74176, { 11648, 17836, 11648 } }, |
| { 148352, { 11648, 8918, 5824 } }, |
| { 296703, { 5824, 4459, 5824 } }, |
| { 297000, { 3072, 4704, 5120 } }, |
| { 0, { 4096, 6272, 6144 } }, /* all other TMDS clocks */ |
| }; |
| |
| /** |
| * hdmi_recommended_n() - Return N value recommended by HDMI specification |
| * @freq: audio sample rate in Hz |
| * @clock: rounded TMDS clock in kHz |
| */ |
| static unsigned int hdmi_recommended_n(unsigned int freq, unsigned int clock) |
| { |
| const struct hdmi_acr_n *recommended; |
| unsigned int i; |
| |
| for (i = 0; i < ARRAY_SIZE(hdmi_rec_n_table) - 1; i++) { |
| if (clock == hdmi_rec_n_table[i].clock) |
| break; |
| } |
| recommended = hdmi_rec_n_table + i; |
| |
| switch (freq) { |
| case 32000: |
| return recommended->n[0]; |
| case 44100: |
| return recommended->n[1]; |
| case 48000: |
| return recommended->n[2]; |
| case 88200: |
| return recommended->n[1] * 2; |
| case 96000: |
| return recommended->n[2] * 2; |
| case 176400: |
| return recommended->n[1] * 4; |
| case 192000: |
| return recommended->n[2] * 4; |
| default: |
| return (128 * freq) / 1000; |
| } |
| } |
| |
| static unsigned int hdmi_mode_clock_to_hz(unsigned int clock) |
| { |
| switch (clock) { |
| case 25175: |
| return 25174825; /* 25.2/1.001 MHz */ |
| case 74176: |
| return 74175824; /* 74.25/1.001 MHz */ |
| case 148352: |
| return 148351648; /* 148.5/1.001 MHz */ |
| case 296703: |
| return 296703297; /* 297/1.001 MHz */ |
| default: |
| return clock * 1000; |
| } |
| } |
| |
| static unsigned int hdmi_expected_cts(unsigned int audio_sample_rate, |
| unsigned int tmds_clock, unsigned int n) |
| { |
| return DIV_ROUND_CLOSEST_ULL((u64)hdmi_mode_clock_to_hz(tmds_clock) * n, |
| 128 * audio_sample_rate); |
| } |
| |
| static void do_hdmi_hw_aud_set_ncts(struct mtk_hdmi *hdmi, unsigned int n, |
| unsigned int cts) |
| { |
| unsigned char val[NCTS_BYTES]; |
| int i; |
| |
| mtk_hdmi_write(hdmi, GRL_NCTS, 0); |
| mtk_hdmi_write(hdmi, GRL_NCTS, 0); |
| mtk_hdmi_write(hdmi, GRL_NCTS, 0); |
| memset(val, 0, sizeof(val)); |
| |
| val[0] = (cts >> 24) & 0xff; |
| val[1] = (cts >> 16) & 0xff; |
| val[2] = (cts >> 8) & 0xff; |
| val[3] = cts & 0xff; |
| |
| val[4] = (n >> 16) & 0xff; |
| val[5] = (n >> 8) & 0xff; |
| val[6] = n & 0xff; |
| |
| for (i = 0; i < NCTS_BYTES; i++) |
| mtk_hdmi_write(hdmi, GRL_NCTS, val[i]); |
| } |
| |
| static void mtk_hdmi_hw_aud_set_ncts(struct mtk_hdmi *hdmi, |
| unsigned int sample_rate, |
| unsigned int clock) |
| { |
| unsigned int n, cts; |
| |
| n = hdmi_recommended_n(sample_rate, clock); |
| cts = hdmi_expected_cts(sample_rate, clock, n); |
| |
| dev_dbg(hdmi->dev, "%s: sample_rate=%u, clock=%d, cts=%u, n=%u\n", |
| __func__, sample_rate, clock, n, cts); |
| |
| mtk_hdmi_mask(hdmi, DUMMY_304, AUDIO_I2S_NCTS_SEL_64, |
| AUDIO_I2S_NCTS_SEL); |
| do_hdmi_hw_aud_set_ncts(hdmi, n, cts); |
| } |
| |
| static u8 mtk_hdmi_aud_get_chnl_count(enum hdmi_aud_channel_type channel_type) |
| { |
| switch (channel_type) { |
| case HDMI_AUD_CHAN_TYPE_1_0: |
| case HDMI_AUD_CHAN_TYPE_1_1: |
| case HDMI_AUD_CHAN_TYPE_2_0: |
| return 2; |
| case HDMI_AUD_CHAN_TYPE_2_1: |
| case HDMI_AUD_CHAN_TYPE_3_0: |
| return 3; |
| case HDMI_AUD_CHAN_TYPE_3_1: |
| case HDMI_AUD_CHAN_TYPE_4_0: |
| case HDMI_AUD_CHAN_TYPE_3_0_LRS: |
| return 4; |
| case HDMI_AUD_CHAN_TYPE_4_1: |
| case HDMI_AUD_CHAN_TYPE_5_0: |
| case HDMI_AUD_CHAN_TYPE_3_1_LRS: |
| case HDMI_AUD_CHAN_TYPE_4_0_CLRS: |
| return 5; |
| case HDMI_AUD_CHAN_TYPE_5_1: |
| case HDMI_AUD_CHAN_TYPE_6_0: |
| case HDMI_AUD_CHAN_TYPE_4_1_CLRS: |
| case HDMI_AUD_CHAN_TYPE_6_0_CS: |
| case HDMI_AUD_CHAN_TYPE_6_0_CH: |
| case HDMI_AUD_CHAN_TYPE_6_0_OH: |
| case HDMI_AUD_CHAN_TYPE_6_0_CHR: |
| return 6; |
| case HDMI_AUD_CHAN_TYPE_6_1: |
| case HDMI_AUD_CHAN_TYPE_6_1_CS: |
| case HDMI_AUD_CHAN_TYPE_6_1_CH: |
| case HDMI_AUD_CHAN_TYPE_6_1_OH: |
| case HDMI_AUD_CHAN_TYPE_6_1_CHR: |
| case HDMI_AUD_CHAN_TYPE_7_0: |
| case HDMI_AUD_CHAN_TYPE_7_0_LH_RH: |
| case HDMI_AUD_CHAN_TYPE_7_0_LSR_RSR: |
| case HDMI_AUD_CHAN_TYPE_7_0_LC_RC: |
| case HDMI_AUD_CHAN_TYPE_7_0_LW_RW: |
| case HDMI_AUD_CHAN_TYPE_7_0_LSD_RSD: |
| case HDMI_AUD_CHAN_TYPE_7_0_LSS_RSS: |
| case HDMI_AUD_CHAN_TYPE_7_0_LHS_RHS: |
| case HDMI_AUD_CHAN_TYPE_7_0_CS_CH: |
| case HDMI_AUD_CHAN_TYPE_7_0_CS_OH: |
| case HDMI_AUD_CHAN_TYPE_7_0_CS_CHR: |
| case HDMI_AUD_CHAN_TYPE_7_0_CH_OH: |
| case HDMI_AUD_CHAN_TYPE_7_0_CH_CHR: |
| case HDMI_AUD_CHAN_TYPE_7_0_OH_CHR: |
| case HDMI_AUD_CHAN_TYPE_7_0_LSS_RSS_LSR_RSR: |
| case HDMI_AUD_CHAN_TYPE_8_0_LH_RH_CS: |
| return 7; |
| case HDMI_AUD_CHAN_TYPE_7_1: |
| case HDMI_AUD_CHAN_TYPE_7_1_LH_RH: |
| case HDMI_AUD_CHAN_TYPE_7_1_LSR_RSR: |
| case HDMI_AUD_CHAN_TYPE_7_1_LC_RC: |
| case HDMI_AUD_CHAN_TYPE_7_1_LW_RW: |
| case HDMI_AUD_CHAN_TYPE_7_1_LSD_RSD: |
| case HDMI_AUD_CHAN_TYPE_7_1_LSS_RSS: |
| case HDMI_AUD_CHAN_TYPE_7_1_LHS_RHS: |
| case HDMI_AUD_CHAN_TYPE_7_1_CS_CH: |
| case HDMI_AUD_CHAN_TYPE_7_1_CS_OH: |
| case HDMI_AUD_CHAN_TYPE_7_1_CS_CHR: |
| case HDMI_AUD_CHAN_TYPE_7_1_CH_OH: |
| case HDMI_AUD_CHAN_TYPE_7_1_CH_CHR: |
| case HDMI_AUD_CHAN_TYPE_7_1_OH_CHR: |
| case HDMI_AUD_CHAN_TYPE_7_1_LSS_RSS_LSR_RSR: |
| return 8; |
| default: |
| return 2; |
| } |
| } |
| |
| static int mtk_hdmi_video_change_vpll(struct mtk_hdmi *hdmi, u32 clock) |
| { |
| unsigned long rate; |
| int ret; |
| |
| /* The DPI driver already should have set TVDPLL to the correct rate */ |
| ret = clk_set_rate(hdmi->clk[MTK_HDMI_CLK_HDMI_PLL], clock); |
| if (ret) { |
| dev_err(hdmi->dev, "Failed to set PLL to %u Hz: %d\n", clock, |
| ret); |
| return ret; |
| } |
| |
| rate = clk_get_rate(hdmi->clk[MTK_HDMI_CLK_HDMI_PLL]); |
| |
| if (DIV_ROUND_CLOSEST(rate, 1000) != DIV_ROUND_CLOSEST(clock, 1000)) |
| dev_warn(hdmi->dev, "Want PLL %u Hz, got %lu Hz\n", clock, |
| rate); |
| else |
| dev_dbg(hdmi->dev, "Want PLL %u Hz, got %lu Hz\n", clock, rate); |
| |
| mtk_hdmi_hw_config_sys(hdmi); |
| mtk_hdmi_hw_set_deep_color_mode(hdmi); |
| return 0; |
| } |
| |
| static void mtk_hdmi_video_set_display_mode(struct mtk_hdmi *hdmi, |
| struct drm_display_mode *mode) |
| { |
| mtk_hdmi_hw_reset(hdmi); |
| mtk_hdmi_hw_enable_notice(hdmi, true); |
| mtk_hdmi_hw_write_int_mask(hdmi, 0xff); |
| mtk_hdmi_hw_enable_dvi_mode(hdmi, hdmi->dvi_mode); |
| mtk_hdmi_hw_ncts_auto_write_enable(hdmi, true); |
| |
| mtk_hdmi_hw_msic_setting(hdmi, mode); |
| } |
| |
| static int mtk_hdmi_aud_enable_packet(struct mtk_hdmi *hdmi, bool enable) |
| { |
| mtk_hdmi_hw_send_aud_packet(hdmi, enable); |
| return 0; |
| } |
| |
| static int mtk_hdmi_aud_on_off_hw_ncts(struct mtk_hdmi *hdmi, bool on) |
| { |
| mtk_hdmi_hw_ncts_enable(hdmi, on); |
| return 0; |
| } |
| |
| static int mtk_hdmi_aud_set_input(struct mtk_hdmi *hdmi) |
| { |
| enum hdmi_aud_channel_type chan_type; |
| u8 chan_count; |
| bool dst; |
| |
| mtk_hdmi_hw_aud_set_channel_swap(hdmi, HDMI_AUD_SWAP_LFE_CC); |
| mtk_hdmi_set_bits(hdmi, GRL_MIX_CTRL, MIX_CTRL_FLAT); |
| |
| if (hdmi->aud_param.aud_input_type == HDMI_AUD_INPUT_SPDIF && |
| hdmi->aud_param.aud_codec == HDMI_AUDIO_CODING_TYPE_DST) { |
| mtk_hdmi_hw_aud_set_bit_num(hdmi, HDMI_AUDIO_SAMPLE_SIZE_24); |
| } else if (hdmi->aud_param.aud_i2s_fmt == HDMI_I2S_MODE_LJT_24BIT) { |
| hdmi->aud_param.aud_i2s_fmt = HDMI_I2S_MODE_LJT_16BIT; |
| } |
| |
| mtk_hdmi_hw_aud_set_i2s_fmt(hdmi, hdmi->aud_param.aud_i2s_fmt); |
| mtk_hdmi_hw_aud_set_bit_num(hdmi, HDMI_AUDIO_SAMPLE_SIZE_24); |
| |
| dst = ((hdmi->aud_param.aud_input_type == HDMI_AUD_INPUT_SPDIF) && |
| (hdmi->aud_param.aud_codec == HDMI_AUDIO_CODING_TYPE_DST)); |
| mtk_hdmi_hw_audio_config(hdmi, dst); |
| |
| if (hdmi->aud_param.aud_input_type == HDMI_AUD_INPUT_SPDIF) |
| chan_type = HDMI_AUD_CHAN_TYPE_2_0; |
| else |
| chan_type = hdmi->aud_param.aud_input_chan_type; |
| chan_count = mtk_hdmi_aud_get_chnl_count(chan_type); |
| mtk_hdmi_hw_aud_set_i2s_chan_num(hdmi, chan_type, chan_count); |
| mtk_hdmi_hw_aud_set_input_type(hdmi, hdmi->aud_param.aud_input_type); |
| |
| return 0; |
| } |
| |
| static int mtk_hdmi_aud_set_src(struct mtk_hdmi *hdmi, |
| struct drm_display_mode *display_mode) |
| { |
| unsigned int sample_rate = hdmi->aud_param.codec_params.sample_rate; |
| |
| mtk_hdmi_aud_on_off_hw_ncts(hdmi, false); |
| mtk_hdmi_hw_aud_src_disable(hdmi); |
| mtk_hdmi_clear_bits(hdmi, GRL_CFG2, CFG2_ACLK_INV); |
| |
| if (hdmi->aud_param.aud_input_type == HDMI_AUD_INPUT_I2S) { |
| switch (sample_rate) { |
| case 32000: |
| case 44100: |
| case 48000: |
| case 88200: |
| case 96000: |
| break; |
| default: |
| return -EINVAL; |
| } |
| mtk_hdmi_hw_aud_set_mclk(hdmi, hdmi->aud_param.aud_mclk); |
| } else { |
| switch (sample_rate) { |
| case 32000: |
| case 44100: |
| case 48000: |
| break; |
| default: |
| return -EINVAL; |
| } |
| mtk_hdmi_hw_aud_set_mclk(hdmi, HDMI_AUD_MCLK_128FS); |
| } |
| |
| mtk_hdmi_hw_aud_set_ncts(hdmi, sample_rate, display_mode->clock); |
| |
| mtk_hdmi_hw_aud_src_reenable(hdmi); |
| return 0; |
| } |
| |
| static int mtk_hdmi_aud_output_config(struct mtk_hdmi *hdmi, |
| struct drm_display_mode *display_mode) |
| { |
| mtk_hdmi_hw_aud_mute(hdmi); |
| mtk_hdmi_aud_enable_packet(hdmi, false); |
| |
| mtk_hdmi_aud_set_input(hdmi); |
| mtk_hdmi_aud_set_src(hdmi, display_mode); |
| mtk_hdmi_hw_aud_set_channel_status(hdmi, |
| hdmi->aud_param.codec_params.iec.status); |
| |
| usleep_range(50, 100); |
| |
| mtk_hdmi_aud_on_off_hw_ncts(hdmi, true); |
| mtk_hdmi_aud_enable_packet(hdmi, true); |
| mtk_hdmi_hw_aud_unmute(hdmi); |
| return 0; |
| } |
| |
| static int mtk_hdmi_setup_avi_infoframe(struct mtk_hdmi *hdmi, |
| struct drm_display_mode *mode) |
| { |
| struct hdmi_avi_infoframe frame; |
| u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AVI_INFOFRAME_SIZE]; |
| ssize_t err; |
| |
| err = drm_hdmi_avi_infoframe_from_display_mode(&frame, |
| &hdmi->conn, mode); |
| if (err < 0) { |
| dev_err(hdmi->dev, |
| "Failed to get AVI infoframe from mode: %zd\n", err); |
| return err; |
| } |
| |
| err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer)); |
| if (err < 0) { |
| dev_err(hdmi->dev, "Failed to pack AVI infoframe: %zd\n", err); |
| return err; |
| } |
| |
| mtk_hdmi_hw_send_info_frame(hdmi, buffer, sizeof(buffer)); |
| return 0; |
| } |
| |
| static int mtk_hdmi_setup_spd_infoframe(struct mtk_hdmi *hdmi, |
| const char *vendor, |
| const char *product) |
| { |
| struct hdmi_spd_infoframe frame; |
| u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_SPD_INFOFRAME_SIZE]; |
| ssize_t err; |
| |
| err = hdmi_spd_infoframe_init(&frame, vendor, product); |
| if (err < 0) { |
| dev_err(hdmi->dev, "Failed to initialize SPD infoframe: %zd\n", |
| err); |
| return err; |
| } |
| |
| err = hdmi_spd_infoframe_pack(&frame, buffer, sizeof(buffer)); |
| if (err < 0) { |
| dev_err(hdmi->dev, "Failed to pack SDP infoframe: %zd\n", err); |
| return err; |
| } |
| |
| mtk_hdmi_hw_send_info_frame(hdmi, buffer, sizeof(buffer)); |
| return 0; |
| } |
| |
| static int mtk_hdmi_setup_audio_infoframe(struct mtk_hdmi *hdmi) |
| { |
| struct hdmi_audio_infoframe frame; |
| u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE]; |
| ssize_t err; |
| |
| err = hdmi_audio_infoframe_init(&frame); |
| if (err < 0) { |
| dev_err(hdmi->dev, "Failed to setup audio infoframe: %zd\n", |
| err); |
| return err; |
| } |
| |
| frame.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM; |
| frame.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM; |
| frame.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM; |
| frame.channels = mtk_hdmi_aud_get_chnl_count( |
| hdmi->aud_param.aud_input_chan_type); |
| |
| err = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer)); |
| if (err < 0) { |
| dev_err(hdmi->dev, "Failed to pack audio infoframe: %zd\n", |
| err); |
| return err; |
| } |
| |
| mtk_hdmi_hw_send_info_frame(hdmi, buffer, sizeof(buffer)); |
| return 0; |
| } |
| |
| static int mtk_hdmi_setup_vendor_specific_infoframe(struct mtk_hdmi *hdmi, |
| struct drm_display_mode *mode) |
| { |
| struct hdmi_vendor_infoframe frame; |
| u8 buffer[10]; |
| ssize_t err; |
| |
| err = drm_hdmi_vendor_infoframe_from_display_mode(&frame, |
| &hdmi->conn, mode); |
| if (err) { |
| dev_err(hdmi->dev, |
| "Failed to get vendor infoframe from mode: %zd\n", err); |
| return err; |
| } |
| |
| err = hdmi_vendor_infoframe_pack(&frame, buffer, sizeof(buffer)); |
| if (err < 0) { |
| dev_err(hdmi->dev, "Failed to pack vendor infoframe: %zd\n", |
| err); |
| return err; |
| } |
| |
| mtk_hdmi_hw_send_info_frame(hdmi, buffer, sizeof(buffer)); |
| return 0; |
| } |
| |
| static int mtk_hdmi_output_init(struct mtk_hdmi *hdmi) |
| { |
| struct hdmi_audio_param *aud_param = &hdmi->aud_param; |
| |
| hdmi->csp = HDMI_COLORSPACE_RGB; |
| aud_param->aud_codec = HDMI_AUDIO_CODING_TYPE_PCM; |
| aud_param->aud_sampe_size = HDMI_AUDIO_SAMPLE_SIZE_16; |
| aud_param->aud_input_type = HDMI_AUD_INPUT_I2S; |
| aud_param->aud_i2s_fmt = HDMI_I2S_MODE_I2S_24BIT; |
| aud_param->aud_mclk = HDMI_AUD_MCLK_128FS; |
| aud_param->aud_input_chan_type = HDMI_AUD_CHAN_TYPE_2_0; |
| |
| return 0; |
| } |
| |
| static void mtk_hdmi_audio_enable(struct mtk_hdmi *hdmi) |
| { |
| mtk_hdmi_aud_enable_packet(hdmi, true); |
| hdmi->audio_enable = true; |
| } |
| |
| static void mtk_hdmi_audio_disable(struct mtk_hdmi *hdmi) |
| { |
| mtk_hdmi_aud_enable_packet(hdmi, false); |
| hdmi->audio_enable = false; |
| } |
| |
| static int mtk_hdmi_audio_set_param(struct mtk_hdmi *hdmi, |
| struct hdmi_audio_param *param) |
| { |
| if (!hdmi->audio_enable) { |
| dev_err(hdmi->dev, "hdmi audio is in disable state!\n"); |
| return -EINVAL; |
| } |
| dev_dbg(hdmi->dev, "codec:%d, input:%d, channel:%d, fs:%d\n", |
| param->aud_codec, param->aud_input_type, |
| param->aud_input_chan_type, param->codec_params.sample_rate); |
| memcpy(&hdmi->aud_param, param, sizeof(*param)); |
| return mtk_hdmi_aud_output_config(hdmi, &hdmi->mode); |
| } |
| |
| static int mtk_hdmi_output_set_display_mode(struct mtk_hdmi *hdmi, |
| struct drm_display_mode *mode) |
| { |
| int ret; |
| |
| mtk_hdmi_hw_vid_black(hdmi, true); |
| mtk_hdmi_hw_aud_mute(hdmi); |
| mtk_hdmi_hw_send_av_mute(hdmi); |
| phy_power_off(hdmi->phy); |
| |
| ret = mtk_hdmi_video_change_vpll(hdmi, |
| mode->clock * 1000); |
| if (ret) { |
| dev_err(hdmi->dev, "Failed to set vpll: %d\n", ret); |
| return ret; |
| } |
| mtk_hdmi_video_set_display_mode(hdmi, mode); |
| |
| phy_power_on(hdmi->phy); |
| mtk_hdmi_aud_output_config(hdmi, mode); |
| |
| mtk_hdmi_hw_vid_black(hdmi, false); |
| mtk_hdmi_hw_aud_unmute(hdmi); |
| mtk_hdmi_hw_send_av_unmute(hdmi); |
| |
| return 0; |
| } |
| |
| static const char * const mtk_hdmi_clk_names[MTK_HDMI_CLK_COUNT] = { |
| [MTK_HDMI_CLK_HDMI_PIXEL] = "pixel", |
| [MTK_HDMI_CLK_HDMI_PLL] = "pll", |
| [MTK_HDMI_CLK_AUD_BCLK] = "bclk", |
| [MTK_HDMI_CLK_AUD_SPDIF] = "spdif", |
| }; |
| |
| static int mtk_hdmi_get_all_clk(struct mtk_hdmi *hdmi, |
| struct device_node *np) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(mtk_hdmi_clk_names); i++) { |
| hdmi->clk[i] = of_clk_get_by_name(np, |
| mtk_hdmi_clk_names[i]); |
| if (IS_ERR(hdmi->clk[i])) |
| return PTR_ERR(hdmi->clk[i]); |
| } |
| return 0; |
| } |
| |
| static int mtk_hdmi_clk_enable_audio(struct mtk_hdmi *hdmi) |
| { |
| int ret; |
| |
| ret = clk_prepare_enable(hdmi->clk[MTK_HDMI_CLK_AUD_BCLK]); |
| if (ret) |
| return ret; |
| |
| ret = clk_prepare_enable(hdmi->clk[MTK_HDMI_CLK_AUD_SPDIF]); |
| if (ret) |
| goto err; |
| |
| return 0; |
| err: |
| clk_disable_unprepare(hdmi->clk[MTK_HDMI_CLK_AUD_BCLK]); |
| return ret; |
| } |
| |
| static void mtk_hdmi_clk_disable_audio(struct mtk_hdmi *hdmi) |
| { |
| clk_disable_unprepare(hdmi->clk[MTK_HDMI_CLK_AUD_BCLK]); |
| clk_disable_unprepare(hdmi->clk[MTK_HDMI_CLK_AUD_SPDIF]); |
| } |
| |
| static enum drm_connector_status |
| mtk_hdmi_update_plugged_status(struct mtk_hdmi *hdmi) |
| { |
| bool connected; |
| |
| mutex_lock(&hdmi->update_plugged_status_lock); |
| connected = mtk_cec_hpd_high(hdmi->cec_dev); |
| if (hdmi->plugged_cb && hdmi->codec_dev) |
| hdmi->plugged_cb(hdmi->codec_dev, connected); |
| mutex_unlock(&hdmi->update_plugged_status_lock); |
| |
| return connected ? |
| connector_status_connected : connector_status_disconnected; |
| } |
| |
| static enum drm_connector_status hdmi_conn_detect(struct drm_connector *conn, |
| bool force) |
| { |
| struct mtk_hdmi *hdmi = hdmi_ctx_from_conn(conn); |
| return mtk_hdmi_update_plugged_status(hdmi); |
| } |
| |
| static void hdmi_conn_destroy(struct drm_connector *conn) |
| { |
| struct mtk_hdmi *hdmi = hdmi_ctx_from_conn(conn); |
| |
| mtk_cec_set_hpd_event(hdmi->cec_dev, NULL, NULL); |
| |
| drm_connector_cleanup(conn); |
| } |
| |
| static int mtk_hdmi_conn_get_modes(struct drm_connector *conn) |
| { |
| struct mtk_hdmi *hdmi = hdmi_ctx_from_conn(conn); |
| struct edid *edid; |
| int ret; |
| |
| if (!hdmi->ddc_adpt) |
| return -ENODEV; |
| |
| edid = drm_get_edid(conn, hdmi->ddc_adpt); |
| if (!edid) |
| return -ENODEV; |
| |
| hdmi->dvi_mode = !drm_detect_monitor_audio(edid); |
| |
| drm_connector_update_edid_property(conn, edid); |
| |
| ret = drm_add_edid_modes(conn, edid); |
| kfree(edid); |
| return ret; |
| } |
| |
| static int mtk_hdmi_conn_mode_valid(struct drm_connector *conn, |
| struct drm_display_mode *mode) |
| { |
| struct mtk_hdmi *hdmi = hdmi_ctx_from_conn(conn); |
| struct drm_bridge *next_bridge; |
| |
| dev_dbg(hdmi->dev, "xres=%d, yres=%d, refresh=%d, intl=%d clock=%d\n", |
| mode->hdisplay, mode->vdisplay, drm_mode_vrefresh(mode), |
| !!(mode->flags & DRM_MODE_FLAG_INTERLACE), mode->clock * 1000); |
| |
| next_bridge = drm_bridge_get_next_bridge(&hdmi->bridge); |
| if (next_bridge) { |
| struct drm_display_mode adjusted_mode; |
| |
| drm_mode_copy(&adjusted_mode, mode); |
| if (!drm_bridge_chain_mode_fixup(next_bridge, mode, |
| &adjusted_mode)) |
| return MODE_BAD; |
| } |
| |
| if (mode->clock < 27000) |
| return MODE_CLOCK_LOW; |
| if (mode->clock > 297000) |
| return MODE_CLOCK_HIGH; |
| |
| return drm_mode_validate_size(mode, 0x1fff, 0x1fff); |
| } |
| |
| static struct drm_encoder *mtk_hdmi_conn_best_enc(struct drm_connector *conn) |
| { |
| struct mtk_hdmi *hdmi = hdmi_ctx_from_conn(conn); |
| |
| return hdmi->bridge.encoder; |
| } |
| |
| static const struct drm_connector_funcs mtk_hdmi_connector_funcs = { |
| .detect = hdmi_conn_detect, |
| .fill_modes = drm_helper_probe_single_connector_modes, |
| .destroy = hdmi_conn_destroy, |
| .reset = drm_atomic_helper_connector_reset, |
| .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, |
| .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, |
| }; |
| |
| static const struct drm_connector_helper_funcs |
| mtk_hdmi_connector_helper_funcs = { |
| .get_modes = mtk_hdmi_conn_get_modes, |
| .mode_valid = mtk_hdmi_conn_mode_valid, |
| .best_encoder = mtk_hdmi_conn_best_enc, |
| }; |
| |
| static void mtk_hdmi_hpd_event(bool hpd, struct device *dev) |
| { |
| struct mtk_hdmi *hdmi = dev_get_drvdata(dev); |
| |
| if (hdmi && hdmi->bridge.encoder && hdmi->bridge.encoder->dev) |
| drm_helper_hpd_irq_event(hdmi->bridge.encoder->dev); |
| } |
| |
| /* |
| * Bridge callbacks |
| */ |
| |
| static int mtk_hdmi_bridge_attach(struct drm_bridge *bridge, |
| enum drm_bridge_attach_flags flags) |
| { |
| struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge); |
| int ret; |
| |
| if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR) { |
| DRM_ERROR("Fix bridge driver to make connector optional!"); |
| return -EINVAL; |
| } |
| |
| ret = drm_connector_init_with_ddc(bridge->encoder->dev, &hdmi->conn, |
| &mtk_hdmi_connector_funcs, |
| DRM_MODE_CONNECTOR_HDMIA, |
| hdmi->ddc_adpt); |
| if (ret) { |
| dev_err(hdmi->dev, "Failed to initialize connector: %d\n", ret); |
| return ret; |
| } |
| drm_connector_helper_add(&hdmi->conn, &mtk_hdmi_connector_helper_funcs); |
| |
| hdmi->conn.polled = DRM_CONNECTOR_POLL_HPD; |
| hdmi->conn.interlace_allowed = true; |
| hdmi->conn.doublescan_allowed = false; |
| |
| ret = drm_connector_attach_encoder(&hdmi->conn, |
| bridge->encoder); |
| if (ret) { |
| dev_err(hdmi->dev, |
| "Failed to attach connector to encoder: %d\n", ret); |
| return ret; |
| } |
| |
| if (hdmi->next_bridge) { |
| ret = drm_bridge_attach(bridge->encoder, hdmi->next_bridge, |
| bridge, flags); |
| if (ret) { |
| dev_err(hdmi->dev, |
| "Failed to attach external bridge: %d\n", ret); |
| return ret; |
| } |
| } |
| |
| mtk_cec_set_hpd_event(hdmi->cec_dev, mtk_hdmi_hpd_event, hdmi->dev); |
| |
| return 0; |
| } |
| |
| static bool mtk_hdmi_bridge_mode_fixup(struct drm_bridge *bridge, |
| const struct drm_display_mode *mode, |
| struct drm_display_mode *adjusted_mode) |
| { |
| return true; |
| } |
| |
| static void mtk_hdmi_bridge_disable(struct drm_bridge *bridge) |
| { |
| struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge); |
| |
| if (!hdmi->enabled) |
| return; |
| |
| phy_power_off(hdmi->phy); |
| clk_disable_unprepare(hdmi->clk[MTK_HDMI_CLK_HDMI_PIXEL]); |
| clk_disable_unprepare(hdmi->clk[MTK_HDMI_CLK_HDMI_PLL]); |
| |
| hdmi->enabled = false; |
| } |
| |
| static void mtk_hdmi_bridge_post_disable(struct drm_bridge *bridge) |
| { |
| struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge); |
| |
| if (!hdmi->powered) |
| return; |
| |
| mtk_hdmi_hw_1p4_version_enable(hdmi, true); |
| mtk_hdmi_hw_make_reg_writable(hdmi, false); |
| |
| hdmi->powered = false; |
| } |
| |
| static void mtk_hdmi_bridge_mode_set(struct drm_bridge *bridge, |
| const struct drm_display_mode *mode, |
| const struct drm_display_mode *adjusted_mode) |
| { |
| struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge); |
| |
| dev_dbg(hdmi->dev, "cur info: name:%s, hdisplay:%d\n", |
| adjusted_mode->name, adjusted_mode->hdisplay); |
| dev_dbg(hdmi->dev, "hsync_start:%d,hsync_end:%d, htotal:%d", |
| adjusted_mode->hsync_start, adjusted_mode->hsync_end, |
| adjusted_mode->htotal); |
| dev_dbg(hdmi->dev, "hskew:%d, vdisplay:%d\n", |
| adjusted_mode->hskew, adjusted_mode->vdisplay); |
| dev_dbg(hdmi->dev, "vsync_start:%d, vsync_end:%d, vtotal:%d", |
| adjusted_mode->vsync_start, adjusted_mode->vsync_end, |
| adjusted_mode->vtotal); |
| dev_dbg(hdmi->dev, "vscan:%d, flag:%d\n", |
| adjusted_mode->vscan, adjusted_mode->flags); |
| |
| drm_mode_copy(&hdmi->mode, adjusted_mode); |
| } |
| |
| static void mtk_hdmi_bridge_pre_enable(struct drm_bridge *bridge) |
| { |
| struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge); |
| |
| mtk_hdmi_hw_make_reg_writable(hdmi, true); |
| mtk_hdmi_hw_1p4_version_enable(hdmi, true); |
| |
| hdmi->powered = true; |
| } |
| |
| static void mtk_hdmi_send_infoframe(struct mtk_hdmi *hdmi, |
| struct drm_display_mode *mode) |
| { |
| mtk_hdmi_setup_audio_infoframe(hdmi); |
| mtk_hdmi_setup_avi_infoframe(hdmi, mode); |
| mtk_hdmi_setup_spd_infoframe(hdmi, "mediatek", "On-chip HDMI"); |
| if (mode->flags & DRM_MODE_FLAG_3D_MASK) |
| mtk_hdmi_setup_vendor_specific_infoframe(hdmi, mode); |
| } |
| |
| static void mtk_hdmi_bridge_enable(struct drm_bridge *bridge) |
| { |
| struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge); |
| |
| mtk_hdmi_output_set_display_mode(hdmi, &hdmi->mode); |
| clk_prepare_enable(hdmi->clk[MTK_HDMI_CLK_HDMI_PLL]); |
| clk_prepare_enable(hdmi->clk[MTK_HDMI_CLK_HDMI_PIXEL]); |
| phy_power_on(hdmi->phy); |
| mtk_hdmi_send_infoframe(hdmi, &hdmi->mode); |
| |
| hdmi->enabled = true; |
| } |
| |
| static const struct drm_bridge_funcs mtk_hdmi_bridge_funcs = { |
| .attach = mtk_hdmi_bridge_attach, |
| .mode_fixup = mtk_hdmi_bridge_mode_fixup, |
| .disable = mtk_hdmi_bridge_disable, |
| .post_disable = mtk_hdmi_bridge_post_disable, |
| .mode_set = mtk_hdmi_bridge_mode_set, |
| .pre_enable = mtk_hdmi_bridge_pre_enable, |
| .enable = mtk_hdmi_bridge_enable, |
| }; |
| |
| static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi, |
| struct platform_device *pdev) |
| { |
| struct device *dev = &pdev->dev; |
| struct device_node *np = dev->of_node; |
| struct device_node *cec_np, *remote, *i2c_np; |
| struct platform_device *cec_pdev; |
| struct regmap *regmap; |
| struct resource *mem; |
| int ret; |
| |
| ret = mtk_hdmi_get_all_clk(hdmi, np); |
| if (ret) { |
| if (ret != -EPROBE_DEFER) |
| dev_err(dev, "Failed to get clocks: %d\n", ret); |
| |
| return ret; |
| } |
| |
| /* The CEC module handles HDMI hotplug detection */ |
| cec_np = of_get_compatible_child(np->parent, "mediatek,mt8173-cec"); |
| if (!cec_np) { |
| dev_err(dev, "Failed to find CEC node\n"); |
| return -EINVAL; |
| } |
| |
| cec_pdev = of_find_device_by_node(cec_np); |
| if (!cec_pdev) { |
| dev_err(hdmi->dev, "Waiting for CEC device %pOF\n", |
| cec_np); |
| of_node_put(cec_np); |
| return -EPROBE_DEFER; |
| } |
| of_node_put(cec_np); |
| hdmi->cec_dev = &cec_pdev->dev; |
| |
| /* |
| * The mediatek,syscon-hdmi property contains a phandle link to the |
| * MMSYS_CONFIG device and the register offset of the HDMI_SYS_CFG |
| * registers it contains. |
| */ |
| regmap = syscon_regmap_lookup_by_phandle(np, "mediatek,syscon-hdmi"); |
| ret = of_property_read_u32_index(np, "mediatek,syscon-hdmi", 1, |
| &hdmi->sys_offset); |
| if (IS_ERR(regmap)) |
| ret = PTR_ERR(regmap); |
| if (ret) { |
| dev_err(dev, |
| "Failed to get system configuration registers: %d\n", |
| ret); |
| goto put_device; |
| } |
| hdmi->sys_regmap = regmap; |
| |
| mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| hdmi->regs = devm_ioremap_resource(dev, mem); |
| if (IS_ERR(hdmi->regs)) { |
| ret = PTR_ERR(hdmi->regs); |
| goto put_device; |
| } |
| |
| remote = of_graph_get_remote_node(np, 1, 0); |
| if (!remote) { |
| ret = -EINVAL; |
| goto put_device; |
| } |
| |
| if (!of_device_is_compatible(remote, "hdmi-connector")) { |
| hdmi->next_bridge = of_drm_find_bridge(remote); |
| if (!hdmi->next_bridge) { |
| dev_err(dev, "Waiting for external bridge\n"); |
| of_node_put(remote); |
| ret = -EPROBE_DEFER; |
| goto put_device; |
| } |
| } |
| |
| i2c_np = of_parse_phandle(remote, "ddc-i2c-bus", 0); |
| if (!i2c_np) { |
| dev_err(dev, "Failed to find ddc-i2c-bus node in %pOF\n", |
| remote); |
| of_node_put(remote); |
| ret = -EINVAL; |
| goto put_device; |
| } |
| of_node_put(remote); |
| |
| hdmi->ddc_adpt = of_find_i2c_adapter_by_node(i2c_np); |
| of_node_put(i2c_np); |
| if (!hdmi->ddc_adpt) { |
| dev_err(dev, "Failed to get ddc i2c adapter by node\n"); |
| ret = -EINVAL; |
| goto put_device; |
| } |
| |
| return 0; |
| put_device: |
| put_device(hdmi->cec_dev); |
| return ret; |
| } |
| |
| /* |
| * HDMI audio codec callbacks |
| */ |
| |
| static int mtk_hdmi_audio_hw_params(struct device *dev, void *data, |
| struct hdmi_codec_daifmt *daifmt, |
| struct hdmi_codec_params *params) |
| { |
| struct mtk_hdmi *hdmi = dev_get_drvdata(dev); |
| struct hdmi_audio_param hdmi_params; |
| unsigned int chan = params->cea.channels; |
| |
| dev_dbg(hdmi->dev, "%s: %u Hz, %d bit, %d channels\n", __func__, |
| params->sample_rate, params->sample_width, chan); |
| |
| if (!hdmi->bridge.encoder) |
| return -ENODEV; |
| |
| switch (chan) { |
| case 2: |
| hdmi_params.aud_input_chan_type = HDMI_AUD_CHAN_TYPE_2_0; |
| break; |
| case 4: |
| hdmi_params.aud_input_chan_type = HDMI_AUD_CHAN_TYPE_4_0; |
| break; |
| case 6: |
| hdmi_params.aud_input_chan_type = HDMI_AUD_CHAN_TYPE_5_1; |
| break; |
| case 8: |
| hdmi_params.aud_input_chan_type = HDMI_AUD_CHAN_TYPE_7_1; |
| break; |
| default: |
| dev_err(hdmi->dev, "channel[%d] not supported!\n", chan); |
| return -EINVAL; |
| } |
| |
| switch (params->sample_rate) { |
| case 32000: |
| case 44100: |
| case 48000: |
| case 88200: |
| case 96000: |
| case 176400: |
| case 192000: |
| break; |
| default: |
| dev_err(hdmi->dev, "rate[%d] not supported!\n", |
| params->sample_rate); |
| return -EINVAL; |
| } |
| |
| switch (daifmt->fmt) { |
| case HDMI_I2S: |
| hdmi_params.aud_codec = HDMI_AUDIO_CODING_TYPE_PCM; |
| hdmi_params.aud_sampe_size = HDMI_AUDIO_SAMPLE_SIZE_16; |
| hdmi_params.aud_input_type = HDMI_AUD_INPUT_I2S; |
| hdmi_params.aud_i2s_fmt = HDMI_I2S_MODE_I2S_24BIT; |
| hdmi_params.aud_mclk = HDMI_AUD_MCLK_128FS; |
| break; |
| case HDMI_SPDIF: |
| hdmi_params.aud_codec = HDMI_AUDIO_CODING_TYPE_PCM; |
| hdmi_params.aud_sampe_size = HDMI_AUDIO_SAMPLE_SIZE_16; |
| hdmi_params.aud_input_type = HDMI_AUD_INPUT_SPDIF; |
| break; |
| default: |
| dev_err(hdmi->dev, "%s: Invalid DAI format %d\n", __func__, |
| daifmt->fmt); |
| return -EINVAL; |
| } |
| |
| memcpy(&hdmi_params.codec_params, params, |
| sizeof(hdmi_params.codec_params)); |
| |
| mtk_hdmi_audio_set_param(hdmi, &hdmi_params); |
| |
| return 0; |
| } |
| |
| static int mtk_hdmi_audio_startup(struct device *dev, void *data) |
| { |
| struct mtk_hdmi *hdmi = dev_get_drvdata(dev); |
| |
| mtk_hdmi_audio_enable(hdmi); |
| |
| return 0; |
| } |
| |
| static void mtk_hdmi_audio_shutdown(struct device *dev, void *data) |
| { |
| struct mtk_hdmi *hdmi = dev_get_drvdata(dev); |
| |
| mtk_hdmi_audio_disable(hdmi); |
| } |
| |
| static int |
| mtk_hdmi_audio_mute(struct device *dev, void *data, |
| bool enable, int direction) |
| { |
| struct mtk_hdmi *hdmi = dev_get_drvdata(dev); |
| |
| if (enable) |
| mtk_hdmi_hw_aud_mute(hdmi); |
| else |
| mtk_hdmi_hw_aud_unmute(hdmi); |
| |
| return 0; |
| } |
| |
| static int mtk_hdmi_audio_get_eld(struct device *dev, void *data, uint8_t *buf, size_t len) |
| { |
| struct mtk_hdmi *hdmi = dev_get_drvdata(dev); |
| |
| memcpy(buf, hdmi->conn.eld, min(sizeof(hdmi->conn.eld), len)); |
| |
| return 0; |
| } |
| |
| static int mtk_hdmi_audio_hook_plugged_cb(struct device *dev, void *data, |
| hdmi_codec_plugged_cb fn, |
| struct device *codec_dev) |
| { |
| struct mtk_hdmi *hdmi = data; |
| |
| mutex_lock(&hdmi->update_plugged_status_lock); |
| hdmi->plugged_cb = fn; |
| hdmi->codec_dev = codec_dev; |
| mutex_unlock(&hdmi->update_plugged_status_lock); |
| |
| mtk_hdmi_update_plugged_status(hdmi); |
| |
| return 0; |
| } |
| |
| static const struct hdmi_codec_ops mtk_hdmi_audio_codec_ops = { |
| .hw_params = mtk_hdmi_audio_hw_params, |
| .audio_startup = mtk_hdmi_audio_startup, |
| .audio_shutdown = mtk_hdmi_audio_shutdown, |
| .mute_stream = mtk_hdmi_audio_mute, |
| .get_eld = mtk_hdmi_audio_get_eld, |
| .hook_plugged_cb = mtk_hdmi_audio_hook_plugged_cb, |
| .no_capture_mute = 1, |
| }; |
| |
| static int mtk_hdmi_register_audio_driver(struct device *dev) |
| { |
| struct mtk_hdmi *hdmi = dev_get_drvdata(dev); |
| struct hdmi_codec_pdata codec_data = { |
| .ops = &mtk_hdmi_audio_codec_ops, |
| .max_i2s_channels = 2, |
| .i2s = 1, |
| .data = hdmi, |
| }; |
| struct platform_device *pdev; |
| |
| pdev = platform_device_register_data(dev, HDMI_CODEC_DRV_NAME, |
| PLATFORM_DEVID_AUTO, &codec_data, |
| sizeof(codec_data)); |
| if (IS_ERR(pdev)) |
| return PTR_ERR(pdev); |
| |
| DRM_INFO("%s driver bound to HDMI\n", HDMI_CODEC_DRV_NAME); |
| return 0; |
| } |
| |
| static int mtk_drm_hdmi_probe(struct platform_device *pdev) |
| { |
| struct mtk_hdmi *hdmi; |
| struct device *dev = &pdev->dev; |
| int ret; |
| |
| hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL); |
| if (!hdmi) |
| return -ENOMEM; |
| |
| hdmi->dev = dev; |
| hdmi->conf = of_device_get_match_data(dev); |
| |
| ret = mtk_hdmi_dt_parse_pdata(hdmi, pdev); |
| if (ret) |
| return ret; |
| |
| hdmi->phy = devm_phy_get(dev, "hdmi"); |
| if (IS_ERR(hdmi->phy)) { |
| ret = PTR_ERR(hdmi->phy); |
| dev_err(dev, "Failed to get HDMI PHY: %d\n", ret); |
| return ret; |
| } |
| |
| mutex_init(&hdmi->update_plugged_status_lock); |
| platform_set_drvdata(pdev, hdmi); |
| |
| ret = mtk_hdmi_output_init(hdmi); |
| if (ret) { |
| dev_err(dev, "Failed to initialize hdmi output\n"); |
| return ret; |
| } |
| |
| ret = mtk_hdmi_register_audio_driver(dev); |
| if (ret) { |
| dev_err(dev, "Failed to register audio driver: %d\n", ret); |
| return ret; |
| } |
| |
| hdmi->bridge.funcs = &mtk_hdmi_bridge_funcs; |
| hdmi->bridge.of_node = pdev->dev.of_node; |
| drm_bridge_add(&hdmi->bridge); |
| |
| ret = mtk_hdmi_clk_enable_audio(hdmi); |
| if (ret) { |
| dev_err(dev, "Failed to enable audio clocks: %d\n", ret); |
| goto err_bridge_remove; |
| } |
| |
| return 0; |
| |
| err_bridge_remove: |
| drm_bridge_remove(&hdmi->bridge); |
| return ret; |
| } |
| |
| static int mtk_drm_hdmi_remove(struct platform_device *pdev) |
| { |
| struct mtk_hdmi *hdmi = platform_get_drvdata(pdev); |
| |
| drm_bridge_remove(&hdmi->bridge); |
| mtk_hdmi_clk_disable_audio(hdmi); |
| return 0; |
| } |
| |
| #ifdef CONFIG_PM_SLEEP |
| static int mtk_hdmi_suspend(struct device *dev) |
| { |
| struct mtk_hdmi *hdmi = dev_get_drvdata(dev); |
| |
| mtk_hdmi_clk_disable_audio(hdmi); |
| |
| return 0; |
| } |
| |
| static int mtk_hdmi_resume(struct device *dev) |
| { |
| struct mtk_hdmi *hdmi = dev_get_drvdata(dev); |
| int ret = 0; |
| |
| ret = mtk_hdmi_clk_enable_audio(hdmi); |
| if (ret) { |
| dev_err(dev, "hdmi resume failed!\n"); |
| return ret; |
| } |
| |
| return 0; |
| } |
| #endif |
| static SIMPLE_DEV_PM_OPS(mtk_hdmi_pm_ops, |
| mtk_hdmi_suspend, mtk_hdmi_resume); |
| |
| static const struct mtk_hdmi_conf mtk_hdmi_conf_mt2701 = { |
| .tz_disabled = true, |
| }; |
| |
| static const struct of_device_id mtk_drm_hdmi_of_ids[] = { |
| { .compatible = "mediatek,mt2701-hdmi", |
| .data = &mtk_hdmi_conf_mt2701, |
| }, |
| { .compatible = "mediatek,mt8173-hdmi", |
| }, |
| {} |
| }; |
| |
| static struct platform_driver mtk_hdmi_driver = { |
| .probe = mtk_drm_hdmi_probe, |
| .remove = mtk_drm_hdmi_remove, |
| .driver = { |
| .name = "mediatek-drm-hdmi", |
| .of_match_table = mtk_drm_hdmi_of_ids, |
| .pm = &mtk_hdmi_pm_ops, |
| }, |
| }; |
| |
| static struct platform_driver * const mtk_hdmi_drivers[] = { |
| &mtk_hdmi_ddc_driver, |
| &mtk_cec_driver, |
| &mtk_hdmi_driver, |
| }; |
| |
| static int __init mtk_hdmitx_init(void) |
| { |
| return platform_register_drivers(mtk_hdmi_drivers, |
| ARRAY_SIZE(mtk_hdmi_drivers)); |
| } |
| |
| static void __exit mtk_hdmitx_exit(void) |
| { |
| platform_unregister_drivers(mtk_hdmi_drivers, |
| ARRAY_SIZE(mtk_hdmi_drivers)); |
| } |
| |
| module_init(mtk_hdmitx_init); |
| module_exit(mtk_hdmitx_exit); |
| |
| MODULE_AUTHOR("Jie Qiu <[email protected]>"); |
| MODULE_DESCRIPTION("MediaTek HDMI Driver"); |
| MODULE_LICENSE("GPL v2"); |
