// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2018 Rockchip Electronics Co., Ltd. * * Author: Chen Shunqing */ #include #include #include #include #include #include #include #include #include #include #include #ifdef CONFIG_SWITCH #include #endif #include #include #include #include #include #include #include #include "../rockchip_drm_drv.h" #define RK618_HDMI_BASE 0x0400 #define DDC_SEGMENT_ADDR 0x30 enum PWR_MODE { NORMAL, LOWER_PWR, }; #define HDMI_SCL_RATE (100 * 1000) #define DDC_BUS_FREQ_L 0x4b #define DDC_BUS_FREQ_H 0x4c #define HDMI_SYS_CTRL 0x00 #define m_RST_ANALOG (1 << 6) #define v_RST_ANALOG (0 << 6) #define v_NOT_RST_ANALOG (1 << 6) #define m_RST_DIGITAL (1 << 5) #define v_RST_DIGITAL (0 << 5) #define v_NOT_RST_DIGITAL (1 << 5) #define m_REG_CLK_INV (1 << 4) #define v_REG_CLK_NOT_INV (0 << 4) #define v_REG_CLK_INV (1 << 4) #define m_VCLK_INV (1 << 3) #define v_VCLK_NOT_INV (0 << 3) #define v_VCLK_INV (1 << 3) #define m_REG_CLK_SOURCE (1 << 2) #define v_REG_CLK_SOURCE_TMDS (0 << 2) #define v_REG_CLK_SOURCE_SYS (1 << 2) #define m_POWER (1 << 1) #define v_PWR_ON (0 << 1) #define v_PWR_OFF (1 << 1) #define m_INT_POL (1 << 0) #define v_INT_POL_HIGH 1 #define v_INT_POL_LOW 0 #define HDMI_VIDEO_CONTROL1 0x01 #define m_VIDEO_INPUT_FORMAT (7 << 1) #define m_DE_SOURCE (1 << 0) #define v_VIDEO_INPUT_FORMAT(n) ((n) << 1) #define v_DE_EXTERNAL 1 #define v_DE_INTERNAL 0 enum { VIDEO_INPUT_SDR_RGB444 = 0, VIDEO_INPUT_DDR_RGB444 = 5, VIDEO_INPUT_DDR_YCBCR422 = 6 }; #define HDMI_VIDEO_CONTROL2 0x02 #define m_VIDEO_OUTPUT_COLOR (3 << 6) #define m_VIDEO_INPUT_BITS (3 << 4) #define m_VIDEO_INPUT_CSP (1 << 0) #define v_VIDEO_OUTPUT_COLOR(n) (((n) & 0x3) << 6) #define v_VIDEO_INPUT_BITS(n) ((n) << 4) #define v_VIDEO_INPUT_CSP(n) ((n) << 0) enum { VIDEO_INPUT_12BITS = 0, VIDEO_INPUT_10BITS = 1, VIDEO_INPUT_REVERT = 2, VIDEO_INPUT_8BITS = 3, }; #define HDMI_VIDEO_CONTROL 0x03 #define m_VIDEO_AUTO_CSC (1 << 7) #define v_VIDEO_AUTO_CSC(n) ((n) << 7) #define m_VIDEO_C0_C2_SWAP (1 << 0) #define v_VIDEO_C0_C2_SWAP(n) ((n) << 0) enum { C0_C2_CHANGE_ENABLE = 0, C0_C2_CHANGE_DISABLE = 1, AUTO_CSC_DISABLE = 0, AUTO_CSC_ENABLE = 1, }; #define HDMI_VIDEO_CONTROL3 0x04 #define m_COLOR_DEPTH_NOT_INDICATED (1 << 4) #define m_SOF (1 << 3) #define m_COLOR_RANGE (1 << 2) #define m_CSC (1 << 0) #define v_COLOR_DEPTH_NOT_INDICATED(n) ((n) << 4) #define v_SOF_ENABLE (0 << 3) #define v_SOF_DISABLE (1 << 3) #define v_COLOR_RANGE_FULL (1 << 2) #define v_COLOR_RANGE_LIMITED (0 << 2) #define v_CSC_ENABLE 1 #define v_CSC_DISABLE 0 #define HDMI_AV_MUTE 0x05 #define m_AVMUTE_CLEAR (1 << 7) #define m_AVMUTE_ENABLE (1 << 6) #define m_AUDIO_PD (1 << 2) #define m_AUDIO_MUTE (1 << 1) #define m_VIDEO_BLACK (1 << 0) #define v_AVMUTE_CLEAR(n) ((n) << 7) #define v_AVMUTE_ENABLE(n) ((n) << 6) #define v_AUDIO_MUTE(n) ((n) << 1) #define v_AUDIO_PD(n) ((n) << 2) #define v_VIDEO_MUTE(n) ((n) << 0) #define HDMI_VIDEO_TIMING_CTL 0x08 #define v_HSYNC_POLARITY(n) ((n) << 3) #define v_VSYNC_POLARITY(n) ((n) << 2) #define v_INETLACE(n) ((n) << 1) #define v_EXTERANL_VIDEO(n) ((n) << 0) #define HDMI_VIDEO_EXT_HTOTAL_L 0x09 #define HDMI_VIDEO_EXT_HTOTAL_H 0x0a #define HDMI_VIDEO_EXT_HBLANK_L 0x0b #define HDMI_VIDEO_EXT_HBLANK_H 0x0c #define HDMI_VIDEO_EXT_HDELAY_L 0x0d #define HDMI_VIDEO_EXT_HDELAY_H 0x0e #define HDMI_VIDEO_EXT_HDURATION_L 0x0f #define HDMI_VIDEO_EXT_HDURATION_H 0x10 #define HDMI_VIDEO_EXT_VTOTAL_L 0x11 #define HDMI_VIDEO_EXT_VTOTAL_H 0x12 #define HDMI_VIDEO_EXT_VBLANK 0x13 #define HDMI_VIDEO_EXT_VDELAY 0x14 #define HDMI_VIDEO_EXT_VDURATION 0x15 #define HDMI_VIDEO_CSC_COEF 0x18 #define HDMI_AUDIO_CTRL1 0x35 enum { CTS_SOURCE_INTERNAL = 0, CTS_SOURCE_EXTERNAL = 1, }; #define v_CTS_SOURCE(n) ((n) << 7) enum { DOWNSAMPLE_DISABLE = 0, DOWNSAMPLE_1_2 = 1, DOWNSAMPLE_1_4 = 2, }; #define v_DOWN_SAMPLE(n) ((n) << 5) enum { AUDIO_SOURCE_IIS = 0, AUDIO_SOURCE_SPDIF = 1, }; #define v_AUDIO_SOURCE(n) ((n) << 3) #define v_MCLK_ENABLE(n) ((n) << 2) enum { MCLK_128FS = 0, MCLK_256FS = 1, MCLK_384FS = 2, MCLK_512FS = 3, }; #define v_MCLK_RATIO(n) (n) #define AUDIO_SAMPLE_RATE 0x37 enum { AUDIO_32K = 0x3, AUDIO_441K = 0x0, AUDIO_48K = 0x2, AUDIO_882K = 0x8, AUDIO_96K = 0xa, AUDIO_1764K = 0xc, AUDIO_192K = 0xe, }; #define AUDIO_I2S_MODE 0x38 enum { I2S_CHANNEL_1_2 = 1, I2S_CHANNEL_3_4 = 3, I2S_CHANNEL_5_6 = 7, I2S_CHANNEL_7_8 = 0xf }; #define v_I2S_CHANNEL(n) ((n) << 2) enum { I2S_STANDARD = 0, I2S_LEFT_JUSTIFIED = 1, I2S_RIGHT_JUSTIFIED = 2, }; #define v_I2S_MODE(n) (n) #define AUDIO_I2S_MAP 0x39 #define AUDIO_I2S_SWAPS_SPDIF 0x3a #define v_SPIDF_FREQ(n) (n) #define N_32K 0x1000 #define N_441K 0x1880 #define N_882K 0x3100 #define N_1764K 0x6200 #define N_48K 0x1800 #define N_96K 0x3000 #define N_192K 0x6000 #define HDMI_AUDIO_CHANNEL_STATUS 0x3e #define m_AUDIO_STATUS_NLPCM (1 << 7) #define m_AUDIO_STATUS_USE (1 << 6) #define m_AUDIO_STATUS_COPYRIGHT (1 << 5) #define m_AUDIO_STATUS_ADDITION (3 << 2) #define m_AUDIO_STATUS_CLK_ACCURACY (2 << 0) #define v_AUDIO_STATUS_NLPCM(n) (((n) & 1) << 7) #define AUDIO_N_H 0x3f #define AUDIO_N_M 0x40 #define AUDIO_N_L 0x41 #define HDMI_AUDIO_CTS_H 0x45 #define HDMI_AUDIO_CTS_M 0x46 #define HDMI_AUDIO_CTS_L 0x47 #define HDMI_DDC_CLK_L 0x4b #define HDMI_DDC_CLK_H 0x4c #define HDMI_EDID_SEGMENT_POINTER 0x4d #define HDMI_EDID_WORD_ADDR 0x4e #define HDMI_EDID_FIFO_OFFSET 0x4f #define HDMI_EDID_FIFO_ADDR 0x50 #define HDMI_PACKET_SEND_MANUAL 0x9c #define HDMI_PACKET_SEND_AUTO 0x9d #define m_PACKET_GCP_EN (1 << 7) #define m_PACKET_MSI_EN (1 << 6) #define m_PACKET_SDI_EN (1 << 5) #define m_PACKET_VSI_EN (1 << 4) #define v_PACKET_GCP_EN(n) (((n) & 1) << 7) #define v_PACKET_MSI_EN(n) (((n) & 1) << 6) #define v_PACKET_SDI_EN(n) (((n) & 1) << 5) #define v_PACKET_VSI_EN(n) (((n) & 1) << 4) #define HDMI_CONTROL_PACKET_BUF_INDEX 0x9f enum { INFOFRAME_VSI = 0x05, INFOFRAME_AVI = 0x06, INFOFRAME_AAI = 0x08, }; #define HDMI_CONTROL_PACKET_ADDR 0xa0 #define HDMI_MAXIMUM_INFO_FRAME_SIZE 0x11 enum { AVI_COLOR_MODE_RGB = 0, AVI_COLOR_MODE_YCBCR422 = 1, AVI_COLOR_MODE_YCBCR444 = 2, AVI_COLORIMETRY_NO_DATA = 0, AVI_COLORIMETRY_SMPTE_170M = 1, AVI_COLORIMETRY_ITU709 = 2, AVI_COLORIMETRY_EXTENDED = 3, AVI_CODED_FRAME_ASPECT_NO_DATA = 0, AVI_CODED_FRAME_ASPECT_4_3 = 1, AVI_CODED_FRAME_ASPECT_16_9 = 2, ACTIVE_ASPECT_RATE_SAME_AS_CODED_FRAME = 0x08, ACTIVE_ASPECT_RATE_4_3 = 0x09, ACTIVE_ASPECT_RATE_16_9 = 0x0A, ACTIVE_ASPECT_RATE_14_9 = 0x0B, }; #define HDMI_HDCP_CTRL 0x52 #define m_HDMI_DVI (1 << 1) #define v_HDMI_DVI(n) ((n) << 1) #define HDMI_INTERRUPT_MASK1 0xc0 #define HDMI_INTERRUPT_STATUS1 0xc1 #define m_INT_HOTPLUG_RK618 BIT(7) #define m_INT_ACTIVE_VSYNC (1 << 5) #define m_INT_EDID_READY (1 << 2) #define HDMI_INTERRUPT_MASK2 0xc2 #define HDMI_INTERRUPT_STATUS2 0xc3 #define m_INT_HDCP_ERR (1 << 7) #define m_INT_BKSV_FLAG (1 << 6) #define m_INT_HDCP_OK (1 << 4) #define HDMI_STATUS 0xc8 #define m_HOTPLUG (1 << 7) #define m_MASK_INT_HOTPLUG (1 << 5) #define m_INT_HOTPLUG (1 << 1) #define v_MASK_INT_HOTPLUG(n) (((n) & 0x1) << 5) #define HDMI_COLORBAR 0xc9 #define HDMI_PHY_SYNC 0xce #define HDMI_PHY_SYS_CTL 0xe0 #define m_TMDS_CLK_SOURCE (1 << 5) #define v_TMDS_FROM_PLL (0 << 5) #define v_TMDS_FROM_GEN (1 << 5) #define m_PHASE_CLK (1 << 4) #define v_DEFAULT_PHASE (0 << 4) #define v_SYNC_PHASE (1 << 4) #define m_TMDS_CURRENT_PWR (1 << 3) #define v_TURN_ON_CURRENT (0 << 3) #define v_CAT_OFF_CURRENT (1 << 3) #define m_BANDGAP_PWR (1 << 2) #define v_BANDGAP_PWR_UP (0 << 2) #define v_BANDGAP_PWR_DOWN (1 << 2) #define m_PLL_PWR (1 << 1) #define v_PLL_PWR_UP (0 << 1) #define v_PLL_PWR_DOWN (1 << 1) #define m_TMDS_CHG_PWR (1 << 0) #define v_TMDS_CHG_PWR_UP (0 << 0) #define v_TMDS_CHG_PWR_DOWN (1 << 0) #define HDMI_PHY_CHG_PWR 0xe1 #define v_CLK_CHG_PWR(n) (((n) & 1) << 3) #define v_DATA_CHG_PWR(n) (((n) & 7) << 0) #define HDMI_PHY_DRIVER 0xe2 #define v_CLK_MAIN_DRIVER(n) ((n) << 4) #define v_DATA_MAIN_DRIVER(n) ((n) << 0) #define HDMI_PHY_PRE_EMPHASIS 0xe3 #define v_PRE_EMPHASIS(n) (((n) & 7) << 4) #define v_CLK_PRE_DRIVER(n) (((n) & 3) << 2) #define v_DATA_PRE_DRIVER(n) (((n) & 3) << 0) #define HDMI_PHY_FEEDBACK_DIV_RATIO_LOW 0xe7 #define v_FEEDBACK_DIV_LOW(n) ((n) & 0xff) #define HDMI_PHY_FEEDBACK_DIV_RATIO_HIGH 0xe8 #define v_FEEDBACK_DIV_HIGH(n) ((n) & 1) #define HDMI_PHY_PRE_DIV_RATIO 0xed #define v_PRE_DIV_RATIO(n) ((n) & 0x1f) #define HDMI_CEC_CTRL 0xd0 #define m_ADJUST_FOR_HISENSE (1 << 6) #define m_REJECT_RX_BROADCAST (1 << 5) #define m_BUSFREETIME_ENABLE (1 << 2) #define m_REJECT_RX (1 << 1) #define m_START_TX (1 << 0) #define HDMI_CEC_DATA 0xd1 #define HDMI_CEC_TX_OFFSET 0xd2 #define HDMI_CEC_RX_OFFSET 0xd3 #define HDMI_CEC_CLK_H 0xd4 #define HDMI_CEC_CLK_L 0xd5 #define HDMI_CEC_TX_LENGTH 0xd6 #define HDMI_CEC_RX_LENGTH 0xd7 #define HDMI_CEC_TX_INT_MASK 0xd8 #define m_TX_DONE (1 << 3) #define m_TX_NOACK (1 << 2) #define m_TX_BROADCAST_REJ (1 << 1) #define m_TX_BUSNOTFREE (1 << 0) #define HDMI_CEC_RX_INT_MASK 0xd9 #define m_RX_LA_ERR (1 << 4) #define m_RX_GLITCH (1 << 3) #define m_RX_DONE (1 << 0) #define HDMI_CEC_TX_INT 0xda #define HDMI_CEC_RX_INT 0xdb #define HDMI_CEC_BUSFREETIME_L 0xdc #define HDMI_CEC_BUSFREETIME_H 0xdd #define HDMI_CEC_LOGICADDR 0xde struct audio_info { int sample_rate; int channels; int sample_width; }; struct hdmi_data_info { int vic; bool sink_is_hdmi; bool sink_has_audio; unsigned int enc_in_format; unsigned int enc_out_format; unsigned int colorimetry; }; struct rk618_hdmi_i2c { struct i2c_adapter adap; u8 ddc_addr; u8 segment_addr; struct mutex lock; }; struct rk618_hdmi_phy_config { unsigned long mpixelclock; u8 pre_emphasis; /* pre-emphasis value */ u8 vlev_ctr; /* voltage level control */ }; struct rk618_hdmi { struct device *dev; int irq; struct regmap *regmap; struct rk618 *parent; struct clk *clock; struct drm_bridge base; struct drm_connector connector; struct drm_bridge *bridge; struct rk618_hdmi_i2c *i2c; struct i2c_adapter *ddc; unsigned int tmds_rate; struct platform_device *audio_pdev; bool audio_enable; struct hdmi_data_info hdmi_data; struct drm_display_mode previous_mode; #ifdef CONFIG_SWITCH struct switch_dev switchdev; #endif struct rockchip_drm_sub_dev sub_dev; }; enum { CSC_ITU601_16_235_TO_RGB_0_255_8BIT, CSC_ITU601_0_255_TO_RGB_0_255_8BIT, CSC_ITU709_16_235_TO_RGB_0_255_8BIT, CSC_RGB_0_255_TO_ITU601_16_235_8BIT, CSC_RGB_0_255_TO_ITU709_16_235_8BIT, CSC_RGB_0_255_TO_RGB_16_235_8BIT, }; static const char coeff_csc[][24] = { /* * YUV2RGB:601 SD mode(Y[16:235], UV[16:240], RGB[0:255]): * R = 1.164*Y + 1.596*V - 204 * G = 1.164*Y - 0.391*U - 0.813*V + 154 * B = 1.164*Y + 2.018*U - 258 */ { 0x04, 0xa7, 0x00, 0x00, 0x06, 0x62, 0x02, 0xcc, 0x04, 0xa7, 0x11, 0x90, 0x13, 0x40, 0x00, 0x9a, 0x04, 0xa7, 0x08, 0x12, 0x00, 0x00, 0x03, 0x02 }, /* * YUV2RGB:601 SD mode(YUV[0:255],RGB[0:255]): * R = Y + 1.402*V - 248 * G = Y - 0.344*U - 0.714*V + 135 * B = Y + 1.772*U - 227 */ { 0x04, 0x00, 0x00, 0x00, 0x05, 0x9b, 0x02, 0xf8, 0x04, 0x00, 0x11, 0x60, 0x12, 0xdb, 0x00, 0x87, 0x04, 0x00, 0x07, 0x16, 0x00, 0x00, 0x02, 0xe3 }, /* * YUV2RGB:709 HD mode(Y[16:235],UV[16:240],RGB[0:255]): * R = 1.164*Y + 1.793*V - 248 * G = 1.164*Y - 0.213*U - 0.534*V + 77 * B = 1.164*Y + 2.115*U - 289 */ { 0x04, 0xa7, 0x00, 0x00, 0x07, 0x2c, 0x02, 0xf8, 0x04, 0xa7, 0x10, 0xda, 0x12, 0x22, 0x00, 0x4d, 0x04, 0xa7, 0x08, 0x74, 0x00, 0x00, 0x03, 0x21 }, /* * RGB2YUV:601 SD mode: * Cb = -0.291G - 0.148R + 0.439B + 128 * Y = 0.504G + 0.257R + 0.098B + 16 * Cr = -0.368G + 0.439R - 0.071B + 128 */ { 0x11, 0x5f, 0x01, 0x82, 0x10, 0x23, 0x00, 0x80, 0x02, 0x1c, 0x00, 0xa1, 0x00, 0x36, 0x00, 0x1e, 0x11, 0x29, 0x10, 0x59, 0x01, 0x82, 0x00, 0x80 }, /* * RGB2YUV:709 HD mode: * Cb = - 0.338G - 0.101R + 0.439B + 128 * Y = 0.614G + 0.183R + 0.062B + 16 * Cr = - 0.399G + 0.439R - 0.040B + 128 */ { 0x11, 0x98, 0x01, 0xc1, 0x10, 0x28, 0x00, 0x80, 0x02, 0x74, 0x00, 0xbb, 0x00, 0x3f, 0x00, 0x10, 0x11, 0x5a, 0x10, 0x67, 0x01, 0xc1, 0x00, 0x80 }, /* * RGB[0:255]2RGB[16:235]: * R' = R x (235-16)/255 + 16; * G' = G x (235-16)/255 + 16; * B' = B x (235-16)/255 + 16; */ { 0x00, 0x00, 0x03, 0x6F, 0x00, 0x00, 0x00, 0x10, 0x03, 0x6F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x03, 0x6F, 0x00, 0x10 }, }; static inline struct rk618_hdmi *bridge_to_hdmi(struct drm_bridge *b) { return container_of(b, struct rk618_hdmi, base); } static inline struct rk618_hdmi *connector_to_hdmi(struct drm_connector *c) { return container_of(c, struct rk618_hdmi, connector); } static inline u8 hdmi_readb(struct rk618_hdmi *hdmi, u16 offset) { u32 val; regmap_read(hdmi->regmap, (RK618_HDMI_BASE + ((offset) << 2)), &val); return val; } static inline void hdmi_writeb(struct rk618_hdmi *hdmi, u16 offset, u32 val) { regmap_write(hdmi->regmap, (RK618_HDMI_BASE + ((offset) << 2)), val); } static void rk618_hdmi_set_polarity(struct rk618_hdmi *hdmi, int vic) { u32 val, mask = HDMI_HSYNC_POL_INV | HDMI_VSYNC_POL_INV; if (vic == 76 || vic == 75 || vic == 5 || vic == 20 || vic == 39 || vic == 16 || vic == 4) val = HDMI_HSYNC_POL_INV | HDMI_VSYNC_POL_INV; else val = 0; regmap_update_bits(hdmi->parent->regmap, RK618_MISC_CON, mask, val); } static void rk618_hdmi_pol_init(struct rk618_hdmi *hdmi, int pol) { u32 val; if (pol) val = 0x0; else val = 0x20; regmap_update_bits(hdmi->parent->regmap, RK618_MISC_CON, INT_ACTIVE_LOW, val); regmap_update_bits(hdmi->parent->regmap, RK618_MISC_CON, HDMI_CLK_SEL_MASK, HDMI_CLK_SEL_VIDEO_INF0_CLK); } static inline void hdmi_modb(struct rk618_hdmi *hdmi, u16 offset, u32 msk, u32 val) { u8 temp = hdmi_readb(hdmi, offset) & ~msk; temp |= val & msk; hdmi_writeb(hdmi, offset, temp); } static void rk618_hdmi_i2c_init(struct rk618_hdmi *hdmi) { int ddc_bus_freq; ddc_bus_freq = (hdmi->tmds_rate >> 2) / HDMI_SCL_RATE; hdmi_writeb(hdmi, DDC_BUS_FREQ_L, ddc_bus_freq & 0xFF); hdmi_writeb(hdmi, DDC_BUS_FREQ_H, (ddc_bus_freq >> 8) & 0xFF); /* Clear the EDID interrupt flag and mute the interrupt */ hdmi_writeb(hdmi, HDMI_INTERRUPT_MASK1, 0); hdmi_writeb(hdmi, HDMI_INTERRUPT_STATUS1, m_INT_EDID_READY); hdmi_modb(hdmi, HDMI_INTERRUPT_MASK1, m_INT_HOTPLUG_RK618, m_INT_HOTPLUG_RK618); } static void rk618_hdmi_sys_power(struct rk618_hdmi *hdmi, bool enable) { if (enable) hdmi_modb(hdmi, HDMI_SYS_CTRL, m_POWER, v_PWR_ON); else hdmi_modb(hdmi, HDMI_SYS_CTRL, m_POWER, v_PWR_OFF); } static struct rk618_hdmi_phy_config rk618_hdmi_phy_config[] = { /* pixelclk pre-emp vlev */ { 74250000, 0x0f, 0xaa }, { 165000000, 0x0f, 0xaa }, { ~0UL, 0x00, 0x00 } }; static void rk618_hdmi_set_pwr_mode(struct rk618_hdmi *hdmi, int mode) { const struct rk618_hdmi_phy_config *phy_config = rk618_hdmi_phy_config; switch (mode) { case NORMAL: rk618_hdmi_sys_power(hdmi, false); for (; phy_config->mpixelclock != ~0UL; phy_config++) if (hdmi->tmds_rate <= phy_config->mpixelclock) break; if (!phy_config->mpixelclock) return; hdmi_writeb(hdmi, HDMI_PHY_PRE_EMPHASIS, phy_config->pre_emphasis); hdmi_writeb(hdmi, HDMI_PHY_DRIVER, phy_config->vlev_ctr); hdmi_writeb(hdmi, HDMI_PHY_SYS_CTL, 0x2d); hdmi_writeb(hdmi, HDMI_PHY_SYS_CTL, 0x2c); hdmi_writeb(hdmi, HDMI_PHY_SYS_CTL, 0x28); hdmi_writeb(hdmi, HDMI_PHY_SYS_CTL, 0x20); hdmi_writeb(hdmi, HDMI_PHY_CHG_PWR, 0x0f); hdmi_writeb(hdmi, HDMI_PHY_SYNC, 0x00); hdmi_writeb(hdmi, HDMI_PHY_SYNC, 0x01); rk618_hdmi_sys_power(hdmi, true); break; case LOWER_PWR: rk618_hdmi_sys_power(hdmi, false); hdmi_writeb(hdmi, HDMI_PHY_DRIVER, 0x00); hdmi_writeb(hdmi, HDMI_PHY_PRE_EMPHASIS, 0x00); hdmi_writeb(hdmi, HDMI_PHY_CHG_PWR, 0x00); hdmi_writeb(hdmi, HDMI_PHY_SYS_CTL, 0x2f); break; default: dev_err(hdmi->dev, "Unknown power mode %d\n", mode); } } static void rk618_hdmi_reset(struct rk618_hdmi *hdmi) { u32 val; u32 msk; hdmi_modb(hdmi, HDMI_SYS_CTRL, m_RST_DIGITAL, v_NOT_RST_DIGITAL); usleep_range(100, 110); hdmi_modb(hdmi, HDMI_SYS_CTRL, m_RST_ANALOG, v_NOT_RST_ANALOG); usleep_range(100, 110); msk = m_REG_CLK_INV | m_REG_CLK_SOURCE | m_POWER | m_INT_POL; val = v_REG_CLK_INV | v_REG_CLK_SOURCE_SYS | v_PWR_ON | v_INT_POL_HIGH; hdmi_modb(hdmi, HDMI_SYS_CTRL, msk, val); rk618_hdmi_set_pwr_mode(hdmi, NORMAL); } static int rk618_hdmi_upload_frame(struct rk618_hdmi *hdmi, int setup_rc, union hdmi_infoframe *frame, u32 frame_index, u32 mask, u32 disable, u32 enable) { if (mask) hdmi_modb(hdmi, HDMI_PACKET_SEND_AUTO, mask, disable); hdmi_writeb(hdmi, HDMI_CONTROL_PACKET_BUF_INDEX, frame_index); if (setup_rc >= 0) { u8 packed_frame[HDMI_MAXIMUM_INFO_FRAME_SIZE]; ssize_t rc, i; rc = hdmi_infoframe_pack(frame, packed_frame, sizeof(packed_frame)); if (rc < 0) return rc; for (i = 0; i < rc; i++) hdmi_writeb(hdmi, HDMI_CONTROL_PACKET_ADDR + i, packed_frame[i]); if (mask) hdmi_modb(hdmi, HDMI_PACKET_SEND_AUTO, mask, enable); } return setup_rc; } static int rk618_hdmi_config_video_vsi(struct rk618_hdmi *hdmi, struct drm_display_mode *mode) { union hdmi_infoframe frame; int rc; rc = drm_hdmi_vendor_infoframe_from_display_mode(&frame.vendor.hdmi, &hdmi->connector, mode); return rk618_hdmi_upload_frame(hdmi, rc, &frame, INFOFRAME_VSI, m_PACKET_VSI_EN, v_PACKET_VSI_EN(0), v_PACKET_VSI_EN(1)); } static int rk618_hdmi_config_video_avi(struct rk618_hdmi *hdmi, struct drm_display_mode *mode) { union hdmi_infoframe frame; int rc; rc = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, &hdmi->connector, mode); if (hdmi->hdmi_data.enc_out_format == HDMI_COLORSPACE_YUV444) frame.avi.colorspace = HDMI_COLORSPACE_YUV444; else if (hdmi->hdmi_data.enc_out_format == HDMI_COLORSPACE_YUV422) frame.avi.colorspace = HDMI_COLORSPACE_YUV422; else frame.avi.colorspace = HDMI_COLORSPACE_RGB; if (frame.avi.colorspace != HDMI_COLORSPACE_RGB) frame.avi.colorimetry = hdmi->hdmi_data.colorimetry; frame.avi.scan_mode = HDMI_SCAN_MODE_NONE; return rk618_hdmi_upload_frame(hdmi, rc, &frame, INFOFRAME_AVI, 0, 0, 0); } static int rk618_hdmi_config_audio_aai(struct rk618_hdmi *hdmi, struct audio_info *audio) { struct hdmi_audio_infoframe *faudio; union hdmi_infoframe frame; int rc; rc = hdmi_audio_infoframe_init(&frame.audio); faudio = (struct hdmi_audio_infoframe *)&frame; faudio->channels = audio->channels; return rk618_hdmi_upload_frame(hdmi, rc, &frame, INFOFRAME_AAI, 0, 0, 0); } static int rk618_hdmi_config_video_csc(struct rk618_hdmi *hdmi) { struct hdmi_data_info *data = &hdmi->hdmi_data; int c0_c2_change = 0; int csc_enable = 0; int csc_mode = 0; int auto_csc = 0; int value; int i; /* Input video mode is SDR RGB24bit, data enable signal from external */ hdmi_writeb(hdmi, HDMI_VIDEO_CONTROL1, v_DE_EXTERNAL | v_VIDEO_INPUT_FORMAT(VIDEO_INPUT_SDR_RGB444)); /* Input color hardcode to RGB, and output color hardcode to RGB888 */ value = v_VIDEO_INPUT_BITS(VIDEO_INPUT_8BITS) | v_VIDEO_OUTPUT_COLOR(0) | v_VIDEO_INPUT_CSP(0); hdmi_writeb(hdmi, HDMI_VIDEO_CONTROL2, value); if (data->enc_in_format == data->enc_out_format) { if ((data->enc_in_format == HDMI_COLORSPACE_RGB) || (data->enc_in_format >= HDMI_COLORSPACE_YUV444)) { value = v_SOF_DISABLE | v_COLOR_DEPTH_NOT_INDICATED(1); hdmi_writeb(hdmi, HDMI_VIDEO_CONTROL3, value); hdmi_modb(hdmi, HDMI_VIDEO_CONTROL, m_VIDEO_AUTO_CSC | m_VIDEO_C0_C2_SWAP, v_VIDEO_AUTO_CSC(AUTO_CSC_DISABLE) | v_VIDEO_C0_C2_SWAP(C0_C2_CHANGE_DISABLE)); return 0; } } if (data->colorimetry == HDMI_COLORIMETRY_ITU_601) { if ((data->enc_in_format == HDMI_COLORSPACE_RGB) && (data->enc_out_format == HDMI_COLORSPACE_YUV444)) { csc_mode = CSC_RGB_0_255_TO_ITU601_16_235_8BIT; auto_csc = AUTO_CSC_DISABLE; c0_c2_change = C0_C2_CHANGE_DISABLE; csc_enable = v_CSC_ENABLE; } else if ((data->enc_in_format == HDMI_COLORSPACE_YUV444) && (data->enc_out_format == HDMI_COLORSPACE_RGB)) { csc_mode = CSC_ITU601_16_235_TO_RGB_0_255_8BIT; auto_csc = AUTO_CSC_ENABLE; c0_c2_change = C0_C2_CHANGE_DISABLE; csc_enable = v_CSC_DISABLE; } } else { if ((data->enc_in_format == HDMI_COLORSPACE_RGB) && (data->enc_out_format == HDMI_COLORSPACE_YUV444)) { csc_mode = CSC_RGB_0_255_TO_ITU709_16_235_8BIT; auto_csc = AUTO_CSC_DISABLE; c0_c2_change = C0_C2_CHANGE_DISABLE; csc_enable = v_CSC_ENABLE; } else if ((data->enc_in_format == HDMI_COLORSPACE_YUV444) && (data->enc_out_format == HDMI_COLORSPACE_RGB)) { csc_mode = CSC_ITU709_16_235_TO_RGB_0_255_8BIT; auto_csc = AUTO_CSC_ENABLE; c0_c2_change = C0_C2_CHANGE_DISABLE; csc_enable = v_CSC_DISABLE; } } for (i = 0; i < 24; i++) hdmi_writeb(hdmi, HDMI_VIDEO_CSC_COEF + i, coeff_csc[csc_mode][i]); value = v_SOF_DISABLE | csc_enable | v_COLOR_DEPTH_NOT_INDICATED(1); hdmi_writeb(hdmi, HDMI_VIDEO_CONTROL3, value); hdmi_modb(hdmi, HDMI_VIDEO_CONTROL, m_VIDEO_AUTO_CSC | m_VIDEO_C0_C2_SWAP, v_VIDEO_AUTO_CSC(auto_csc) | v_VIDEO_C0_C2_SWAP(c0_c2_change)); return 0; } static int rk618_hdmi_config_video_timing(struct rk618_hdmi *hdmi, struct drm_display_mode *mode) { int value; /* Set detail external video timing polarity and interlace mode */ value = v_EXTERANL_VIDEO(1); value |= mode->flags & DRM_MODE_FLAG_PHSYNC ? v_HSYNC_POLARITY(1) : v_HSYNC_POLARITY(0); value |= mode->flags & DRM_MODE_FLAG_PVSYNC ? v_VSYNC_POLARITY(1) : v_VSYNC_POLARITY(0); value |= mode->flags & DRM_MODE_FLAG_INTERLACE ? v_INETLACE(1) : v_INETLACE(0); hdmi_writeb(hdmi, HDMI_VIDEO_TIMING_CTL, value); /* Set detail external video timing */ value = mode->htotal; hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HTOTAL_L, value & 0xFF); hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HTOTAL_H, (value >> 8) & 0xFF); value = mode->htotal - mode->hdisplay; hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HBLANK_L, value & 0xFF); hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HBLANK_H, (value >> 8) & 0xFF); value = mode->htotal - mode->hsync_start; hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HDELAY_L, value & 0xFF); hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HDELAY_H, (value >> 8) & 0xFF); value = mode->hsync_end - mode->hsync_start; hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HDURATION_L, value & 0xFF); hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HDURATION_H, (value >> 8) & 0xFF); value = mode->vtotal; hdmi_writeb(hdmi, HDMI_VIDEO_EXT_VTOTAL_L, value & 0xFF); hdmi_writeb(hdmi, HDMI_VIDEO_EXT_VTOTAL_H, (value >> 8) & 0xFF); value = mode->vtotal - mode->vdisplay; hdmi_writeb(hdmi, HDMI_VIDEO_EXT_VBLANK, value & 0xFF); value = mode->vtotal - mode->vsync_start; hdmi_writeb(hdmi, HDMI_VIDEO_EXT_VDELAY, value & 0xFF); value = mode->vsync_end - mode->vsync_start; hdmi_writeb(hdmi, HDMI_VIDEO_EXT_VDURATION, value & 0xFF); hdmi_writeb(hdmi, HDMI_PHY_PRE_DIV_RATIO, 0x1e); hdmi_writeb(hdmi, HDMI_PHY_FEEDBACK_DIV_RATIO_LOW, 0x2c); hdmi_writeb(hdmi, HDMI_PHY_FEEDBACK_DIV_RATIO_HIGH, 0x01); return 0; } static int rk618_hdmi_setup(struct rk618_hdmi *hdmi, struct drm_display_mode *mode) { hdmi->hdmi_data.vic = drm_match_cea_mode(mode); hdmi->hdmi_data.enc_in_format = HDMI_COLORSPACE_RGB; hdmi->hdmi_data.enc_out_format = HDMI_COLORSPACE_RGB; if ((hdmi->hdmi_data.vic == 6) || (hdmi->hdmi_data.vic == 7) || (hdmi->hdmi_data.vic == 21) || (hdmi->hdmi_data.vic == 22) || (hdmi->hdmi_data.vic == 2) || (hdmi->hdmi_data.vic == 3) || (hdmi->hdmi_data.vic == 17) || (hdmi->hdmi_data.vic == 18)) hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_601; else hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_709; /* Mute video and audio output */ hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE | m_VIDEO_BLACK, v_AUDIO_MUTE(1) | v_VIDEO_MUTE(1)); /* Set HDMI Mode */ hdmi_writeb(hdmi, HDMI_HDCP_CTRL, v_HDMI_DVI(hdmi->hdmi_data.sink_is_hdmi)); rk618_hdmi_config_video_timing(hdmi, mode); rk618_hdmi_config_video_csc(hdmi); if (hdmi->hdmi_data.sink_is_hdmi) { rk618_hdmi_config_video_avi(hdmi, mode); rk618_hdmi_config_video_vsi(hdmi, mode); } /* * When IP controller have configured to an accurate video * timing, then the TMDS clock source would be switched to * DCLK_LCDC, so we need to init the TMDS rate to mode pixel * clock rate, and reconfigure the DDC clock. */ hdmi->tmds_rate = mode->clock * 1000; rk618_hdmi_i2c_init(hdmi); /* Unmute video and audio output */ hdmi_modb(hdmi, HDMI_AV_MUTE, m_VIDEO_BLACK, v_VIDEO_MUTE(0)); if (hdmi->audio_enable) hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE, v_AUDIO_MUTE(0)); return 0; } static bool rk618_hdmi_hpd_detect(struct rk618_hdmi *hdmi) { return !!(hdmi_readb(hdmi, HDMI_STATUS) & m_HOTPLUG); } static enum drm_connector_status rk618_hdmi_connector_detect(struct drm_connector *connector, bool force) { struct rk618_hdmi *hdmi = connector_to_hdmi(connector); bool status; status = rk618_hdmi_hpd_detect(hdmi); #ifdef CONFIG_SWITCH switch_set_state(&hdmi->switchdev, status); #endif return status ? connector_status_connected : connector_status_disconnected; } static int rk618_hdmi_connector_get_modes(struct drm_connector *connector) { struct rk618_hdmi *hdmi = connector_to_hdmi(connector); struct drm_display_info *info = &connector->display_info; struct edid *edid = NULL; int ret = 0; if (!hdmi->ddc) return 0; if (rk618_hdmi_hpd_detect(hdmi)) edid = drm_get_edid(connector, hdmi->ddc); if (edid) { hdmi->hdmi_data.sink_is_hdmi = drm_detect_hdmi_monitor(edid); hdmi->hdmi_data.sink_has_audio = drm_detect_monitor_audio(edid); drm_connector_update_edid_property(connector, edid); ret = drm_add_edid_modes(connector, edid); kfree(edid); } else { hdmi->hdmi_data.sink_is_hdmi = true; hdmi->hdmi_data.sink_has_audio = true; ret = rockchip_drm_add_modes_noedid(connector); info->edid_hdmi_rgb444_dc_modes = 0; info->edid_hdmi_ycbcr444_dc_modes = 0; info->hdmi.y420_dc_modes = 0; info->color_formats = 0; dev_info(hdmi->dev, "failed to get edid\n"); } return ret; } static enum drm_mode_status rk618_hdmi_connector_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { if ((mode->hdisplay == 1920 && mode->vdisplay == 1080) || (mode->hdisplay == 1280 && mode->vdisplay == 720)) return MODE_OK; else return MODE_BAD; } static struct drm_encoder * rk618_hdmi_connector_best_encoder(struct drm_connector *connector) { struct rk618_hdmi *hdmi = connector_to_hdmi(connector); return hdmi->base.encoder; } static int rk618_hdmi_probe_single_connector_modes(struct drm_connector *connector, uint32_t maxX, uint32_t maxY) { return drm_helper_probe_single_connector_modes(connector, 1920, 1080); } static const struct drm_connector_funcs rk618_hdmi_connector_funcs = { .fill_modes = rk618_hdmi_probe_single_connector_modes, .detect = rk618_hdmi_connector_detect, .destroy = drm_connector_cleanup, .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 rk618_hdmi_connector_helper_funcs = { .get_modes = rk618_hdmi_connector_get_modes, .mode_valid = rk618_hdmi_connector_mode_valid, .best_encoder = rk618_hdmi_connector_best_encoder, }; static void rk618_hdmi_bridge_mode_set(struct drm_bridge *bridge, const struct drm_display_mode *mode, const struct drm_display_mode *adj_mode) { struct rk618_hdmi *hdmi = bridge_to_hdmi(bridge); /* Store the display mode for plugin/DPMS poweron events */ drm_mode_copy(&hdmi->previous_mode, adj_mode); } static void rk618_hdmi_bridge_enable(struct drm_bridge *bridge) { struct rk618_hdmi *hdmi = bridge_to_hdmi(bridge); clk_prepare_enable(hdmi->clock); if (!rk618_hdmi_hpd_detect(hdmi)) { rk618_hdmi_set_pwr_mode(hdmi, LOWER_PWR); return; } rk618_hdmi_setup(hdmi, &hdmi->previous_mode); rk618_hdmi_set_polarity(hdmi, hdmi->hdmi_data.vic); rk618_hdmi_set_pwr_mode(hdmi, NORMAL); } static void rk618_hdmi_bridge_disable(struct drm_bridge *bridge) { struct rk618_hdmi *hdmi = bridge_to_hdmi(bridge); rk618_hdmi_set_pwr_mode(hdmi, LOWER_PWR); clk_disable_unprepare(hdmi->clock); } static int rk618_hdmi_bridge_attach(struct drm_bridge *bridge, enum drm_bridge_attach_flags flags) { struct rk618_hdmi *hdmi = bridge_to_hdmi(bridge); struct device *dev = hdmi->dev; struct drm_connector *connector = &hdmi->connector; struct drm_device *drm = bridge->dev; struct device_node *endpoint; int ret; connector->polled = DRM_CONNECTOR_POLL_HPD; ret = drm_connector_init(drm, connector, &rk618_hdmi_connector_funcs, DRM_MODE_CONNECTOR_HDMIA); if (ret) { dev_err(hdmi->dev, "Failed to initialize connector with drm\n"); return ret; } drm_connector_helper_add(connector, &rk618_hdmi_connector_helper_funcs); drm_connector_attach_encoder(connector, bridge->encoder); hdmi->sub_dev.connector = &hdmi->connector; hdmi->sub_dev.of_node = hdmi->dev->of_node; rockchip_drm_register_sub_dev(&hdmi->sub_dev); endpoint = of_graph_get_endpoint_by_regs(dev->of_node, 1, -1); if (endpoint && of_device_is_available(endpoint)) { struct device_node *remote; remote = of_graph_get_remote_port_parent(endpoint); of_node_put(endpoint); if (!remote || !of_device_is_available(remote)) return -ENODEV; hdmi->bridge = of_drm_find_bridge(remote); of_node_put(remote); if (!hdmi->bridge) return -EPROBE_DEFER; ret = drm_bridge_attach(bridge->encoder, hdmi->bridge, bridge, 0); if (ret) { dev_err(dev, "failed to attach bridge\n"); return ret; } } return 0; } static void rk618_hdmi_bridge_detach(struct drm_bridge *bridge) { struct rk618_hdmi *hdmi = bridge_to_hdmi(bridge); rockchip_drm_unregister_sub_dev(&hdmi->sub_dev); } static const struct drm_bridge_funcs rk618_hdmi_bridge_funcs = { .attach = rk618_hdmi_bridge_attach, .detach = rk618_hdmi_bridge_detach, .mode_set = rk618_hdmi_bridge_mode_set, .enable = rk618_hdmi_bridge_enable, .disable = rk618_hdmi_bridge_disable, }; static int rk618_hdmi_audio_config_set(struct rk618_hdmi *hdmi, struct audio_info *audio) { int rate, N, channel; if (audio->channels < 3) channel = I2S_CHANNEL_1_2; else if (audio->channels < 5) channel = I2S_CHANNEL_3_4; else if (audio->channels < 7) channel = I2S_CHANNEL_5_6; else channel = I2S_CHANNEL_7_8; switch (audio->sample_rate) { case 32000: rate = AUDIO_32K; N = N_32K; break; case 44100: rate = AUDIO_441K; N = N_441K; break; case 48000: rate = AUDIO_48K; N = N_48K; break; case 88200: rate = AUDIO_882K; N = N_882K; break; case 96000: rate = AUDIO_96K; N = N_96K; break; case 176400: rate = AUDIO_1764K; N = N_1764K; break; case 192000: rate = AUDIO_192K; N = N_192K; break; default: dev_err(hdmi->dev, "[%s] not support such sample rate %d\n", __func__, audio->sample_rate); return -ENOENT; } /* set_audio source I2S */ hdmi_writeb(hdmi, HDMI_AUDIO_CTRL1, 0x01); hdmi_writeb(hdmi, AUDIO_SAMPLE_RATE, rate); hdmi_writeb(hdmi, AUDIO_I2S_MODE, v_I2S_MODE(I2S_STANDARD) | v_I2S_CHANNEL(channel)); hdmi_writeb(hdmi, AUDIO_I2S_MAP, 0x00); hdmi_writeb(hdmi, AUDIO_I2S_SWAPS_SPDIF, 0); /* Set N value */ hdmi_writeb(hdmi, AUDIO_N_H, (N >> 16) & 0x0F); hdmi_writeb(hdmi, AUDIO_N_M, (N >> 8) & 0xFF); hdmi_writeb(hdmi, AUDIO_N_L, N & 0xFF); /*Set hdmi nlpcm mode to support hdmi bitstream*/ hdmi_writeb(hdmi, HDMI_AUDIO_CHANNEL_STATUS, v_AUDIO_STATUS_NLPCM(0)); return rk618_hdmi_config_audio_aai(hdmi, audio); } static int rk618_hdmi_audio_hw_params(struct device *dev, void *d, struct hdmi_codec_daifmt *daifmt, struct hdmi_codec_params *params) { struct rk618_hdmi *hdmi = dev_get_drvdata(dev); struct audio_info audio = { .sample_width = params->sample_width, .sample_rate = params->sample_rate, .channels = params->channels, }; if (!hdmi->hdmi_data.sink_has_audio) { dev_err(hdmi->dev, "Sink do not support audio!\n"); return -ENODEV; } if (!hdmi->base.encoder->crtc) return -ENODEV; switch (daifmt->fmt) { case HDMI_I2S: break; default: dev_err(dev, "%s: Invalid format %d\n", __func__, daifmt->fmt); return -EINVAL; } return rk618_hdmi_audio_config_set(hdmi, &audio); } static void rk618_hdmi_audio_shutdown(struct device *dev, void *d) { /* do nothing */ } static int rk618_hdmi_audio_mute_stream(struct device *dev, void *d, bool mute, int direction) { struct rk618_hdmi *hdmi = dev_get_drvdata(dev); if (!hdmi->hdmi_data.sink_has_audio) { dev_err(hdmi->dev, "Sink do not support audio!\n"); return -ENODEV; } hdmi->audio_enable = !mute; if (mute) hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE | m_AUDIO_PD, v_AUDIO_MUTE(1) | v_AUDIO_PD(1)); else hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE | m_AUDIO_PD, v_AUDIO_MUTE(0) | v_AUDIO_PD(0)); return 0; } static int rk618_hdmi_audio_get_eld(struct device *dev, void *d, uint8_t *buf, size_t len) { struct rk618_hdmi *hdmi = dev_get_drvdata(dev); struct drm_mode_config *config = &hdmi->base.dev->mode_config; struct drm_connector *connector; int ret = -ENODEV; mutex_lock(&config->mutex); list_for_each_entry(connector, &config->connector_list, head) { if (hdmi->base.encoder == connector->encoder) { memcpy(buf, connector->eld, min(sizeof(connector->eld), len)); ret = 0; } } mutex_unlock(&config->mutex); return ret; } static const struct hdmi_codec_ops audio_codec_ops = { .hw_params = rk618_hdmi_audio_hw_params, .audio_shutdown = rk618_hdmi_audio_shutdown, .mute_stream = rk618_hdmi_audio_mute_stream, .get_eld = rk618_hdmi_audio_get_eld, }; static int rk618_hdmi_audio_codec_init(struct rk618_hdmi *hdmi, struct device *dev) { struct hdmi_codec_pdata codec_data = { .i2s = 1, .ops = &audio_codec_ops, .max_i2s_channels = 8, }; hdmi->audio_enable = false; hdmi->audio_pdev = platform_device_register_data(dev, HDMI_CODEC_DRV_NAME, PLATFORM_DEVID_NONE, &codec_data, sizeof(codec_data)); return PTR_ERR_OR_ZERO(hdmi->audio_pdev); } static irqreturn_t rk618_hdmi_irq(int irq, void *dev_id) { struct rk618_hdmi *hdmi = dev_id; hdmi_modb(hdmi, HDMI_INTERRUPT_STATUS1, m_INT_HOTPLUG_RK618, m_INT_HOTPLUG_RK618); if (hdmi->connector.dev) drm_helper_hpd_irq_event(hdmi->connector.dev); return IRQ_HANDLED; } static int rk618_hdmi_i2c_read(struct rk618_hdmi *hdmi, struct i2c_msg *msgs) { int length = msgs->len; u8 *buf = msgs->buf; int i; u32 c; for (i = 0; i < 10; i++) { msleep(20); c = hdmi_readb(hdmi, HDMI_INTERRUPT_STATUS1); if (c & m_INT_EDID_READY) break; } if ((c & m_INT_EDID_READY) == 0) return -EAGAIN; while (length--) *buf++ = hdmi_readb(hdmi, HDMI_EDID_FIFO_ADDR); return 0; } static int rk618_hdmi_i2c_write(struct rk618_hdmi *hdmi, struct i2c_msg *msgs) { /* * The DDC module only support read EDID message, so * we assume that each word write to this i2c adapter * should be the offset of EDID word address. */ if ((msgs->len != 1) || ((msgs->addr != DDC_ADDR) && (msgs->addr != DDC_SEGMENT_ADDR))) return -EINVAL; if (msgs->addr == DDC_ADDR) hdmi->i2c->ddc_addr = msgs->buf[0]; if (msgs->addr == DDC_SEGMENT_ADDR) { hdmi->i2c->segment_addr = msgs->buf[0]; return 0; } /* Set edid fifo first addr */ hdmi_writeb(hdmi, HDMI_EDID_FIFO_OFFSET, 0x00); /* Set edid word address 0x00/0x80 */ hdmi_writeb(hdmi, HDMI_EDID_WORD_ADDR, hdmi->i2c->ddc_addr); /* Set edid segment pointer */ hdmi_writeb(hdmi, HDMI_EDID_SEGMENT_POINTER, hdmi->i2c->segment_addr); return 0; } static int rk618_hdmi_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) { struct rk618_hdmi *hdmi = i2c_get_adapdata(adap); struct rk618_hdmi_i2c *i2c = hdmi->i2c; int i, ret = 0; mutex_lock(&i2c->lock); hdmi->i2c->ddc_addr = 0; hdmi->i2c->segment_addr = 0; /* Clear the EDID interrupt flag and unmute the interrupt */ hdmi_writeb(hdmi, HDMI_INTERRUPT_MASK1, m_INT_EDID_READY); hdmi_writeb(hdmi, HDMI_INTERRUPT_STATUS1, m_INT_EDID_READY); for (i = 0; i < num; i++) { dev_dbg(hdmi->dev, "xfer: num: %d/%d, len: %d, flags: %#x\n", i + 1, num, msgs[i].len, msgs[i].flags); if (msgs[i].flags & I2C_M_RD) ret = rk618_hdmi_i2c_read(hdmi, &msgs[i]); else ret = rk618_hdmi_i2c_write(hdmi, &msgs[i]); if (ret < 0) break; } if (!ret) ret = num; /* Mute HDMI EDID interrupt */ hdmi_writeb(hdmi, HDMI_INTERRUPT_MASK1, 0); hdmi_modb(hdmi, HDMI_INTERRUPT_MASK1, m_INT_HOTPLUG_RK618, m_INT_HOTPLUG_RK618); mutex_unlock(&i2c->lock); return ret; } static u32 rk618_hdmi_i2c_func(struct i2c_adapter *adapter) { return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; } static const struct i2c_algorithm rk618_hdmi_algorithm = { .master_xfer = rk618_hdmi_i2c_xfer, .functionality = rk618_hdmi_i2c_func, }; static struct i2c_adapter *rk618_hdmi_i2c_adapter(struct rk618_hdmi *hdmi) { struct i2c_adapter *adap; struct rk618_hdmi_i2c *i2c; int ret; i2c = devm_kzalloc(hdmi->dev, sizeof(*i2c), GFP_KERNEL); if (!i2c) return ERR_PTR(-ENOMEM); mutex_init(&i2c->lock); adap = &i2c->adap; adap->class = I2C_CLASS_DDC; adap->owner = THIS_MODULE; adap->dev.parent = hdmi->dev; adap->dev.of_node = hdmi->dev->of_node; adap->algo = &rk618_hdmi_algorithm; strlcpy(adap->name, "RK618 HDMI", sizeof(adap->name)); i2c_set_adapdata(adap, hdmi); ret = i2c_add_adapter(adap); if (ret) { dev_warn(hdmi->dev, "cannot add %s I2C adapter\n", adap->name); devm_kfree(hdmi->dev, i2c); return ERR_PTR(ret); } hdmi->i2c = i2c; dev_info(hdmi->dev, "registered %s I2C bus driver\n", adap->name); return adap; } static const struct regmap_range rk618_hdmi_volatile_reg_ranges[] = { regmap_reg_range(0x0400, 0x07b4), }; static const struct regmap_access_table rk618_hdmi_volatile_regs = { .yes_ranges = rk618_hdmi_volatile_reg_ranges, .n_yes_ranges = ARRAY_SIZE(rk618_hdmi_volatile_reg_ranges), }; static bool rk618_is_read_enable_reg(struct device *dev, unsigned int reg) { if (reg >= RK618_HDMI_BASE && reg <= (HDMI_CEC_LOGICADDR * RK618_HDMI_BASE)) return true; return false; } static const struct regmap_config rk618_hdmi_regmap_config = { .name = "hdmi", .reg_bits = 16, .val_bits = 32, .reg_stride = 4, .max_register = 0x07b4, .cache_type = REGCACHE_RBTREE, .reg_format_endian = REGMAP_ENDIAN_NATIVE, .val_format_endian = REGMAP_ENDIAN_NATIVE, .readable_reg = rk618_is_read_enable_reg, .volatile_table = &rk618_hdmi_volatile_regs, }; static int rk618_hdmi_probe(struct platform_device *pdev) { struct rk618 *rk618 = dev_get_drvdata(pdev->dev.parent); struct device *dev = &pdev->dev; struct rk618_hdmi *hdmi; int irq; int ret; if (!of_device_is_available(dev->of_node)) return -ENODEV; hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL); if (!hdmi) return -ENOMEM; hdmi->dev = dev; hdmi->parent = rk618; platform_set_drvdata(pdev, hdmi); irq = platform_get_irq(pdev, 0); if (irq < 0) return irq; hdmi->regmap = devm_regmap_init_i2c(rk618->client, &rk618_hdmi_regmap_config); if (IS_ERR(hdmi->regmap)) { ret = PTR_ERR(hdmi->regmap); dev_err(dev, "failed to allocate register map: %d\n", ret); return PTR_ERR(hdmi->regmap); } hdmi->clock = devm_clk_get(dev, "hdmi"); if (IS_ERR(hdmi->clock)) { dev_err(dev, "Unable to get HDMI clock\n"); return PTR_ERR(hdmi->clock); } rk618_hdmi_pol_init(hdmi, 0); rk618_hdmi_reset(hdmi); hdmi->ddc = rk618_hdmi_i2c_adapter(hdmi); if (IS_ERR(hdmi->ddc)) { ret = PTR_ERR(hdmi->ddc); hdmi->ddc = NULL; return ret; } /* * When IP controller haven't configured to an accurate video * timing, then the TMDS clock source would be switched to * PCLK_HDMI, so we need to init the TMDS rate to PCLK rate, * and reconfigure the DDC clock. */ hdmi->tmds_rate = clk_get_rate(rk618->clkin); rk618_hdmi_i2c_init(hdmi); rk618_hdmi_audio_codec_init(hdmi, dev); /* Unmute hotplug interrupt */ hdmi_modb(hdmi, HDMI_STATUS, m_MASK_INT_HOTPLUG, v_MASK_INT_HOTPLUG(1)); hdmi_modb(hdmi, HDMI_INTERRUPT_STATUS1, m_INT_HOTPLUG_RK618, m_INT_HOTPLUG_RK618); ret = devm_request_threaded_irq(dev, irq, NULL, rk618_hdmi_irq, IRQF_TRIGGER_FALLING | IRQF_ONESHOT, dev_name(dev), hdmi); if (ret) { dev_err(dev, "failed to request hdmi irq: %d\n", ret); return ret; } hdmi->base.funcs = &rk618_hdmi_bridge_funcs; hdmi->base.of_node = dev->of_node; drm_bridge_add(&hdmi->base); #ifdef CONFIG_SWITCH hdmi->switchdev.name = "hdmi"; switch_dev_register(&hdmi->switchdev); #endif return 0; } static int rk618_hdmi_remove(struct platform_device *pdev) { struct rk618_hdmi *hdmi = platform_get_drvdata(pdev); drm_bridge_remove(&hdmi->base); i2c_put_adapter(hdmi->ddc); #ifdef CONFIG_SWITCH switch_dev_unregister(&hdmi->switchdev); #endif return 0; } static const struct of_device_id rk618_hdmi_dt_ids[] = { { .compatible = "rockchip,rk618-hdmi", }, {}, }; MODULE_DEVICE_TABLE(of, rk618_hdmi_dt_ids); static struct platform_driver rk618_hdmi_driver = { .probe = rk618_hdmi_probe, .remove = rk618_hdmi_remove, .driver = { .name = "rk618-hdmi", .of_match_table = rk618_hdmi_dt_ids, }, }; module_platform_driver(rk618_hdmi_driver); MODULE_AUTHOR("Chen Shunqing "); MODULE_AUTHOR("Zheng Yang "); MODULE_AUTHOR("Yakir Yang "); MODULE_DESCRIPTION("Rockchip RK618 HDMI driver"); MODULE_LICENSE("GPL v2");