2 * Copyright (C) 2011-2013 Freescale Semiconductor, Inc.
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * Designware High-Definition Multimedia Interface (HDMI) driver
11 * Copyright (C) 2010, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
13 #include <linux/module.h>
14 #include <linux/irq.h>
15 #include <linux/delay.h>
16 #include <linux/err.h>
17 #include <linux/clk.h>
18 #include <linux/hdmi.h>
19 #include <linux/mutex.h>
20 #include <linux/of_device.h>
21 #include <linux/spinlock.h>
23 #include <drm/drm_of.h>
25 #include <drm/drm_crtc_helper.h>
26 #include <drm/drm_edid.h>
27 #include <drm/drm_encoder_slave.h>
28 #include <drm/bridge/dw_hdmi.h>
31 #include "dw_hdmi-audio.h"
33 #define HDMI_EDID_LEN 512
37 #define YCBCR422_16BITS 2
38 #define YCBCR422_8BITS 3
55 static const u16 csc_coeff_default[3][4] = {
56 { 0x2000, 0x0000, 0x0000, 0x0000 },
57 { 0x0000, 0x2000, 0x0000, 0x0000 },
58 { 0x0000, 0x0000, 0x2000, 0x0000 }
61 static const u16 csc_coeff_rgb_out_eitu601[3][4] = {
62 { 0x2000, 0x6926, 0x74fd, 0x010e },
63 { 0x2000, 0x2cdd, 0x0000, 0x7e9a },
64 { 0x2000, 0x0000, 0x38b4, 0x7e3b }
67 static const u16 csc_coeff_rgb_out_eitu709[3][4] = {
68 { 0x2000, 0x7106, 0x7a02, 0x00a7 },
69 { 0x2000, 0x3264, 0x0000, 0x7e6d },
70 { 0x2000, 0x0000, 0x3b61, 0x7e25 }
73 static const u16 csc_coeff_rgb_in_eitu601[3][4] = {
74 { 0x2591, 0x1322, 0x074b, 0x0000 },
75 { 0x6535, 0x2000, 0x7acc, 0x0200 },
76 { 0x6acd, 0x7534, 0x2000, 0x0200 }
79 static const u16 csc_coeff_rgb_in_eitu709[3][4] = {
80 { 0x2dc5, 0x0d9b, 0x049e, 0x0000 },
81 { 0x62f0, 0x2000, 0x7d11, 0x0200 },
82 { 0x6756, 0x78ab, 0x2000, 0x0200 }
86 bool mdataenablepolarity;
88 unsigned int mpixelclock;
89 unsigned int mpixelrepetitioninput;
90 unsigned int mpixelrepetitionoutput;
93 struct hdmi_data_info {
94 unsigned int enc_in_format;
95 unsigned int enc_out_format;
96 unsigned int enc_color_depth;
97 unsigned int colorimetry;
98 unsigned int pix_repet_factor;
99 unsigned int hdcp_enable;
100 struct hdmi_vmode video_mode;
104 struct drm_connector connector;
105 struct drm_encoder *encoder;
106 struct drm_bridge *bridge;
108 struct platform_device *audio;
109 enum dw_hdmi_devtype dev_type;
111 struct clk *isfr_clk;
112 struct clk *iahb_clk;
114 struct hdmi_data_info hdmi_data;
115 const struct dw_hdmi_plat_data *plat_data;
119 u8 edid[HDMI_EDID_LEN];
123 struct drm_display_mode previous_mode;
125 struct i2c_adapter *ddc;
130 struct mutex mutex; /* for state below and previous_mode */
131 enum drm_connector_force force; /* mutex-protected force state */
132 bool disabled; /* DRM has disabled our bridge */
133 bool bridge_is_on; /* indicates the bridge is on */
134 bool rxsense; /* rxsense state */
135 u8 phy_mask; /* desired phy int mask settings */
137 spinlock_t audio_lock;
138 struct mutex audio_mutex;
139 unsigned int sample_rate;
140 unsigned int audio_cts;
141 unsigned int audio_n;
144 void (*write)(struct dw_hdmi *hdmi, u8 val, int offset);
145 u8 (*read)(struct dw_hdmi *hdmi, int offset);
148 #define HDMI_IH_PHY_STAT0_RX_SENSE \
149 (HDMI_IH_PHY_STAT0_RX_SENSE0 | HDMI_IH_PHY_STAT0_RX_SENSE1 | \
150 HDMI_IH_PHY_STAT0_RX_SENSE2 | HDMI_IH_PHY_STAT0_RX_SENSE3)
152 #define HDMI_PHY_RX_SENSE \
153 (HDMI_PHY_RX_SENSE0 | HDMI_PHY_RX_SENSE1 | \
154 HDMI_PHY_RX_SENSE2 | HDMI_PHY_RX_SENSE3)
156 static void dw_hdmi_writel(struct dw_hdmi *hdmi, u8 val, int offset)
158 writel(val, hdmi->regs + (offset << 2));
161 static u8 dw_hdmi_readl(struct dw_hdmi *hdmi, int offset)
163 return readl(hdmi->regs + (offset << 2));
166 static void dw_hdmi_writeb(struct dw_hdmi *hdmi, u8 val, int offset)
168 writeb(val, hdmi->regs + offset);
171 static u8 dw_hdmi_readb(struct dw_hdmi *hdmi, int offset)
173 return readb(hdmi->regs + offset);
176 static inline void hdmi_writeb(struct dw_hdmi *hdmi, u8 val, int offset)
178 hdmi->write(hdmi, val, offset);
181 static inline u8 hdmi_readb(struct dw_hdmi *hdmi, int offset)
183 return hdmi->read(hdmi, offset);
186 static void hdmi_modb(struct dw_hdmi *hdmi, u8 data, u8 mask, unsigned reg)
188 u8 val = hdmi_readb(hdmi, reg) & ~mask;
191 hdmi_writeb(hdmi, val, reg);
194 static void hdmi_mask_writeb(struct dw_hdmi *hdmi, u8 data, unsigned int reg,
197 hdmi_modb(hdmi, data << shift, mask, reg);
200 static void hdmi_set_cts_n(struct dw_hdmi *hdmi, unsigned int cts,
203 /* Must be set/cleared first */
204 hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_CTS_MANUAL, HDMI_AUD_CTS3);
206 /* nshift factor = 0 */
207 hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_N_SHIFT_MASK, HDMI_AUD_CTS3);
209 hdmi_writeb(hdmi, ((cts >> 16) & HDMI_AUD_CTS3_AUDCTS19_16_MASK) |
210 HDMI_AUD_CTS3_CTS_MANUAL, HDMI_AUD_CTS3);
211 hdmi_writeb(hdmi, (cts >> 8) & 0xff, HDMI_AUD_CTS2);
212 hdmi_writeb(hdmi, cts & 0xff, HDMI_AUD_CTS1);
214 hdmi_writeb(hdmi, (n >> 16) & 0x0f, HDMI_AUD_N3);
215 hdmi_writeb(hdmi, (n >> 8) & 0xff, HDMI_AUD_N2);
216 hdmi_writeb(hdmi, n & 0xff, HDMI_AUD_N1);
219 static unsigned int hdmi_compute_n(unsigned int freq, unsigned long pixel_clk)
221 unsigned int n = (128 * freq) / 1000;
222 unsigned int mult = 1;
224 while (freq > 48000) {
231 if (pixel_clk == 25175000)
233 else if (pixel_clk == 27027000)
235 else if (pixel_clk == 74176000 || pixel_clk == 148352000)
243 if (pixel_clk == 25175000)
245 else if (pixel_clk == 74176000)
247 else if (pixel_clk == 148352000)
255 if (pixel_clk == 25175000)
257 else if (pixel_clk == 27027000)
259 else if (pixel_clk == 74176000)
261 else if (pixel_clk == 148352000)
275 static unsigned int hdmi_compute_cts(unsigned int freq, unsigned long pixel_clk)
277 unsigned int cts = 0;
279 pr_debug("%s: freq: %d pixel_clk: %ld\n", __func__, freq, pixel_clk);
283 if (pixel_clk == 297000000) {
296 cts = pixel_clk / 1000;
302 * All other TMDS clocks are not supported by
303 * DWC_hdmi_tx. The TMDS clocks divided or
304 * multiplied by 1,001 coefficients are not
343 static void hdmi_set_clk_regenerator(struct dw_hdmi *hdmi,
344 unsigned long pixel_clk, unsigned int sample_rate)
348 n = hdmi_compute_n(sample_rate, pixel_clk);
349 cts = hdmi_compute_cts(sample_rate, pixel_clk);
352 "%s: pixel clock/sample rate not supported: %luMHz / %ukHz\n",
353 __func__, pixel_clk, sample_rate);
356 dev_dbg(hdmi->dev, "%s: samplerate=%ukHz pixelclk=%luMHz N=%d cts=%d\n",
357 __func__, sample_rate, pixel_clk, n, cts);
359 spin_lock_irq(&hdmi->audio_lock);
361 hdmi->audio_cts = cts;
362 hdmi_set_cts_n(hdmi, cts, hdmi->audio_enable ? n : 0);
363 spin_unlock_irq(&hdmi->audio_lock);
366 static void hdmi_init_clk_regenerator(struct dw_hdmi *hdmi)
368 mutex_lock(&hdmi->audio_mutex);
369 hdmi_set_clk_regenerator(hdmi, 74250000, hdmi->sample_rate);
370 mutex_unlock(&hdmi->audio_mutex);
373 static void hdmi_clk_regenerator_update_pixel_clock(struct dw_hdmi *hdmi)
375 mutex_lock(&hdmi->audio_mutex);
376 hdmi_set_clk_regenerator(hdmi, hdmi->hdmi_data.video_mode.mpixelclock,
378 mutex_unlock(&hdmi->audio_mutex);
381 void dw_hdmi_set_sample_rate(struct dw_hdmi *hdmi, unsigned int rate)
383 mutex_lock(&hdmi->audio_mutex);
384 hdmi->sample_rate = rate;
385 hdmi_set_clk_regenerator(hdmi, hdmi->hdmi_data.video_mode.mpixelclock,
387 mutex_unlock(&hdmi->audio_mutex);
389 EXPORT_SYMBOL_GPL(dw_hdmi_set_sample_rate);
391 void dw_hdmi_audio_enable(struct dw_hdmi *hdmi)
395 spin_lock_irqsave(&hdmi->audio_lock, flags);
396 hdmi->audio_enable = true;
397 hdmi_set_cts_n(hdmi, hdmi->audio_cts, hdmi->audio_n);
398 spin_unlock_irqrestore(&hdmi->audio_lock, flags);
400 EXPORT_SYMBOL_GPL(dw_hdmi_audio_enable);
402 void dw_hdmi_audio_disable(struct dw_hdmi *hdmi)
406 spin_lock_irqsave(&hdmi->audio_lock, flags);
407 hdmi->audio_enable = false;
408 hdmi_set_cts_n(hdmi, hdmi->audio_cts, 0);
409 spin_unlock_irqrestore(&hdmi->audio_lock, flags);
411 EXPORT_SYMBOL_GPL(dw_hdmi_audio_disable);
414 * this submodule is responsible for the video data synchronization.
415 * for example, for RGB 4:4:4 input, the data map is defined as
416 * pin{47~40} <==> R[7:0]
417 * pin{31~24} <==> G[7:0]
418 * pin{15~8} <==> B[7:0]
420 static void hdmi_video_sample(struct dw_hdmi *hdmi)
422 int color_format = 0;
425 if (hdmi->hdmi_data.enc_in_format == RGB) {
426 if (hdmi->hdmi_data.enc_color_depth == 8)
428 else if (hdmi->hdmi_data.enc_color_depth == 10)
430 else if (hdmi->hdmi_data.enc_color_depth == 12)
432 else if (hdmi->hdmi_data.enc_color_depth == 16)
436 } else if (hdmi->hdmi_data.enc_in_format == YCBCR444) {
437 if (hdmi->hdmi_data.enc_color_depth == 8)
439 else if (hdmi->hdmi_data.enc_color_depth == 10)
441 else if (hdmi->hdmi_data.enc_color_depth == 12)
443 else if (hdmi->hdmi_data.enc_color_depth == 16)
447 } else if (hdmi->hdmi_data.enc_in_format == YCBCR422_8BITS) {
448 if (hdmi->hdmi_data.enc_color_depth == 8)
450 else if (hdmi->hdmi_data.enc_color_depth == 10)
452 else if (hdmi->hdmi_data.enc_color_depth == 12)
458 val = HDMI_TX_INVID0_INTERNAL_DE_GENERATOR_DISABLE |
459 ((color_format << HDMI_TX_INVID0_VIDEO_MAPPING_OFFSET) &
460 HDMI_TX_INVID0_VIDEO_MAPPING_MASK);
461 hdmi_writeb(hdmi, val, HDMI_TX_INVID0);
463 /* Enable TX stuffing: When DE is inactive, fix the output data to 0 */
464 val = HDMI_TX_INSTUFFING_BDBDATA_STUFFING_ENABLE |
465 HDMI_TX_INSTUFFING_RCRDATA_STUFFING_ENABLE |
466 HDMI_TX_INSTUFFING_GYDATA_STUFFING_ENABLE;
467 hdmi_writeb(hdmi, val, HDMI_TX_INSTUFFING);
468 hdmi_writeb(hdmi, 0x0, HDMI_TX_GYDATA0);
469 hdmi_writeb(hdmi, 0x0, HDMI_TX_GYDATA1);
470 hdmi_writeb(hdmi, 0x0, HDMI_TX_RCRDATA0);
471 hdmi_writeb(hdmi, 0x0, HDMI_TX_RCRDATA1);
472 hdmi_writeb(hdmi, 0x0, HDMI_TX_BCBDATA0);
473 hdmi_writeb(hdmi, 0x0, HDMI_TX_BCBDATA1);
476 static int is_color_space_conversion(struct dw_hdmi *hdmi)
478 return hdmi->hdmi_data.enc_in_format != hdmi->hdmi_data.enc_out_format;
481 static int is_color_space_decimation(struct dw_hdmi *hdmi)
483 if (hdmi->hdmi_data.enc_out_format != YCBCR422_8BITS)
485 if (hdmi->hdmi_data.enc_in_format == RGB ||
486 hdmi->hdmi_data.enc_in_format == YCBCR444)
491 static int is_color_space_interpolation(struct dw_hdmi *hdmi)
493 if (hdmi->hdmi_data.enc_in_format != YCBCR422_8BITS)
495 if (hdmi->hdmi_data.enc_out_format == RGB ||
496 hdmi->hdmi_data.enc_out_format == YCBCR444)
501 static void dw_hdmi_update_csc_coeffs(struct dw_hdmi *hdmi)
503 const u16 (*csc_coeff)[3][4] = &csc_coeff_default;
507 if (is_color_space_conversion(hdmi)) {
508 if (hdmi->hdmi_data.enc_out_format == RGB) {
509 if (hdmi->hdmi_data.colorimetry ==
510 HDMI_COLORIMETRY_ITU_601)
511 csc_coeff = &csc_coeff_rgb_out_eitu601;
513 csc_coeff = &csc_coeff_rgb_out_eitu709;
514 } else if (hdmi->hdmi_data.enc_in_format == RGB) {
515 if (hdmi->hdmi_data.colorimetry ==
516 HDMI_COLORIMETRY_ITU_601)
517 csc_coeff = &csc_coeff_rgb_in_eitu601;
519 csc_coeff = &csc_coeff_rgb_in_eitu709;
524 /* The CSC registers are sequential, alternating MSB then LSB */
525 for (i = 0; i < ARRAY_SIZE(csc_coeff_default[0]); i++) {
526 u16 coeff_a = (*csc_coeff)[0][i];
527 u16 coeff_b = (*csc_coeff)[1][i];
528 u16 coeff_c = (*csc_coeff)[2][i];
530 hdmi_writeb(hdmi, coeff_a & 0xff, HDMI_CSC_COEF_A1_LSB + i * 2);
531 hdmi_writeb(hdmi, coeff_a >> 8, HDMI_CSC_COEF_A1_MSB + i * 2);
532 hdmi_writeb(hdmi, coeff_b & 0xff, HDMI_CSC_COEF_B1_LSB + i * 2);
533 hdmi_writeb(hdmi, coeff_b >> 8, HDMI_CSC_COEF_B1_MSB + i * 2);
534 hdmi_writeb(hdmi, coeff_c & 0xff, HDMI_CSC_COEF_C1_LSB + i * 2);
535 hdmi_writeb(hdmi, coeff_c >> 8, HDMI_CSC_COEF_C1_MSB + i * 2);
538 hdmi_modb(hdmi, csc_scale, HDMI_CSC_SCALE_CSCSCALE_MASK,
542 static void hdmi_video_csc(struct dw_hdmi *hdmi)
545 int interpolation = HDMI_CSC_CFG_INTMODE_DISABLE;
548 /* YCC422 interpolation to 444 mode */
549 if (is_color_space_interpolation(hdmi))
550 interpolation = HDMI_CSC_CFG_INTMODE_CHROMA_INT_FORMULA1;
551 else if (is_color_space_decimation(hdmi))
552 decimation = HDMI_CSC_CFG_DECMODE_CHROMA_INT_FORMULA3;
554 if (hdmi->hdmi_data.enc_color_depth == 8)
555 color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_24BPP;
556 else if (hdmi->hdmi_data.enc_color_depth == 10)
557 color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_30BPP;
558 else if (hdmi->hdmi_data.enc_color_depth == 12)
559 color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_36BPP;
560 else if (hdmi->hdmi_data.enc_color_depth == 16)
561 color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_48BPP;
565 /* Configure the CSC registers */
566 hdmi_writeb(hdmi, interpolation | decimation, HDMI_CSC_CFG);
567 hdmi_modb(hdmi, color_depth, HDMI_CSC_SCALE_CSC_COLORDE_PTH_MASK,
570 dw_hdmi_update_csc_coeffs(hdmi);
574 * HDMI video packetizer is used to packetize the data.
575 * for example, if input is YCC422 mode or repeater is used,
576 * data should be repacked this module can be bypassed.
578 static void hdmi_video_packetize(struct dw_hdmi *hdmi)
580 unsigned int color_depth = 0;
581 unsigned int remap_size = HDMI_VP_REMAP_YCC422_16bit;
582 unsigned int output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_PP;
583 struct hdmi_data_info *hdmi_data = &hdmi->hdmi_data;
586 if (hdmi_data->enc_out_format == RGB ||
587 hdmi_data->enc_out_format == YCBCR444) {
588 if (!hdmi_data->enc_color_depth) {
589 output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS;
590 } else if (hdmi_data->enc_color_depth == 8) {
592 output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS;
593 } else if (hdmi_data->enc_color_depth == 10) {
595 } else if (hdmi_data->enc_color_depth == 12) {
597 } else if (hdmi_data->enc_color_depth == 16) {
602 } else if (hdmi_data->enc_out_format == YCBCR422_8BITS) {
603 if (!hdmi_data->enc_color_depth ||
604 hdmi_data->enc_color_depth == 8)
605 remap_size = HDMI_VP_REMAP_YCC422_16bit;
606 else if (hdmi_data->enc_color_depth == 10)
607 remap_size = HDMI_VP_REMAP_YCC422_20bit;
608 else if (hdmi_data->enc_color_depth == 12)
609 remap_size = HDMI_VP_REMAP_YCC422_24bit;
612 output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_YCC422;
617 /* set the packetizer registers */
618 val = ((color_depth << HDMI_VP_PR_CD_COLOR_DEPTH_OFFSET) &
619 HDMI_VP_PR_CD_COLOR_DEPTH_MASK) |
620 ((hdmi_data->pix_repet_factor <<
621 HDMI_VP_PR_CD_DESIRED_PR_FACTOR_OFFSET) &
622 HDMI_VP_PR_CD_DESIRED_PR_FACTOR_MASK);
623 hdmi_writeb(hdmi, val, HDMI_VP_PR_CD);
625 hdmi_modb(hdmi, HDMI_VP_STUFF_PR_STUFFING_STUFFING_MODE,
626 HDMI_VP_STUFF_PR_STUFFING_MASK, HDMI_VP_STUFF);
628 /* Data from pixel repeater block */
629 if (hdmi_data->pix_repet_factor > 1) {
630 vp_conf = HDMI_VP_CONF_PR_EN_ENABLE |
631 HDMI_VP_CONF_BYPASS_SELECT_PIX_REPEATER;
632 } else { /* data from packetizer block */
633 vp_conf = HDMI_VP_CONF_PR_EN_DISABLE |
634 HDMI_VP_CONF_BYPASS_SELECT_VID_PACKETIZER;
637 hdmi_modb(hdmi, vp_conf,
638 HDMI_VP_CONF_PR_EN_MASK |
639 HDMI_VP_CONF_BYPASS_SELECT_MASK, HDMI_VP_CONF);
641 hdmi_modb(hdmi, 1 << HDMI_VP_STUFF_IDEFAULT_PHASE_OFFSET,
642 HDMI_VP_STUFF_IDEFAULT_PHASE_MASK, HDMI_VP_STUFF);
644 hdmi_writeb(hdmi, remap_size, HDMI_VP_REMAP);
646 if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_PP) {
647 vp_conf = HDMI_VP_CONF_BYPASS_EN_DISABLE |
648 HDMI_VP_CONF_PP_EN_ENABLE |
649 HDMI_VP_CONF_YCC422_EN_DISABLE;
650 } else if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_YCC422) {
651 vp_conf = HDMI_VP_CONF_BYPASS_EN_DISABLE |
652 HDMI_VP_CONF_PP_EN_DISABLE |
653 HDMI_VP_CONF_YCC422_EN_ENABLE;
654 } else if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS) {
655 vp_conf = HDMI_VP_CONF_BYPASS_EN_ENABLE |
656 HDMI_VP_CONF_PP_EN_DISABLE |
657 HDMI_VP_CONF_YCC422_EN_DISABLE;
662 hdmi_modb(hdmi, vp_conf,
663 HDMI_VP_CONF_BYPASS_EN_MASK | HDMI_VP_CONF_PP_EN_ENMASK |
664 HDMI_VP_CONF_YCC422_EN_MASK, HDMI_VP_CONF);
666 hdmi_modb(hdmi, HDMI_VP_STUFF_PP_STUFFING_STUFFING_MODE |
667 HDMI_VP_STUFF_YCC422_STUFFING_STUFFING_MODE,
668 HDMI_VP_STUFF_PP_STUFFING_MASK |
669 HDMI_VP_STUFF_YCC422_STUFFING_MASK, HDMI_VP_STUFF);
671 hdmi_modb(hdmi, output_select, HDMI_VP_CONF_OUTPUT_SELECTOR_MASK,
675 static inline void hdmi_phy_test_clear(struct dw_hdmi *hdmi,
678 hdmi_modb(hdmi, bit << HDMI_PHY_TST0_TSTCLR_OFFSET,
679 HDMI_PHY_TST0_TSTCLR_MASK, HDMI_PHY_TST0);
682 static inline void hdmi_phy_test_enable(struct dw_hdmi *hdmi,
685 hdmi_modb(hdmi, bit << HDMI_PHY_TST0_TSTEN_OFFSET,
686 HDMI_PHY_TST0_TSTEN_MASK, HDMI_PHY_TST0);
689 static inline void hdmi_phy_test_clock(struct dw_hdmi *hdmi,
692 hdmi_modb(hdmi, bit << HDMI_PHY_TST0_TSTCLK_OFFSET,
693 HDMI_PHY_TST0_TSTCLK_MASK, HDMI_PHY_TST0);
696 static inline void hdmi_phy_test_din(struct dw_hdmi *hdmi,
699 hdmi_writeb(hdmi, bit, HDMI_PHY_TST1);
702 static inline void hdmi_phy_test_dout(struct dw_hdmi *hdmi,
705 hdmi_writeb(hdmi, bit, HDMI_PHY_TST2);
708 static bool hdmi_phy_wait_i2c_done(struct dw_hdmi *hdmi, int msec)
712 while ((val = hdmi_readb(hdmi, HDMI_IH_I2CMPHY_STAT0) & 0x3) == 0) {
717 hdmi_writeb(hdmi, val, HDMI_IH_I2CMPHY_STAT0);
722 static void __hdmi_phy_i2c_write(struct dw_hdmi *hdmi, unsigned short data,
725 hdmi_writeb(hdmi, 0xFF, HDMI_IH_I2CMPHY_STAT0);
726 hdmi_writeb(hdmi, addr, HDMI_PHY_I2CM_ADDRESS_ADDR);
727 hdmi_writeb(hdmi, (unsigned char)(data >> 8),
728 HDMI_PHY_I2CM_DATAO_1_ADDR);
729 hdmi_writeb(hdmi, (unsigned char)(data >> 0),
730 HDMI_PHY_I2CM_DATAO_0_ADDR);
731 hdmi_writeb(hdmi, HDMI_PHY_I2CM_OPERATION_ADDR_WRITE,
732 HDMI_PHY_I2CM_OPERATION_ADDR);
733 hdmi_phy_wait_i2c_done(hdmi, 1000);
736 static int hdmi_phy_i2c_write(struct dw_hdmi *hdmi, unsigned short data,
739 __hdmi_phy_i2c_write(hdmi, data, addr);
743 static void dw_hdmi_phy_enable_powerdown(struct dw_hdmi *hdmi, bool enable)
745 hdmi_mask_writeb(hdmi, !enable, HDMI_PHY_CONF0,
746 HDMI_PHY_CONF0_PDZ_OFFSET,
747 HDMI_PHY_CONF0_PDZ_MASK);
750 static void dw_hdmi_phy_enable_tmds(struct dw_hdmi *hdmi, u8 enable)
752 hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
753 HDMI_PHY_CONF0_ENTMDS_OFFSET,
754 HDMI_PHY_CONF0_ENTMDS_MASK);
757 static void dw_hdmi_phy_enable_spare(struct dw_hdmi *hdmi, u8 enable)
759 hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
760 HDMI_PHY_CONF0_SPARECTRL_OFFSET,
761 HDMI_PHY_CONF0_SPARECTRL_MASK);
764 static void dw_hdmi_phy_gen2_pddq(struct dw_hdmi *hdmi, u8 enable)
766 hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
767 HDMI_PHY_CONF0_GEN2_PDDQ_OFFSET,
768 HDMI_PHY_CONF0_GEN2_PDDQ_MASK);
771 static void dw_hdmi_phy_gen2_txpwron(struct dw_hdmi *hdmi, u8 enable)
773 hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
774 HDMI_PHY_CONF0_GEN2_TXPWRON_OFFSET,
775 HDMI_PHY_CONF0_GEN2_TXPWRON_MASK);
778 static void dw_hdmi_phy_sel_data_en_pol(struct dw_hdmi *hdmi, u8 enable)
780 hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
781 HDMI_PHY_CONF0_SELDATAENPOL_OFFSET,
782 HDMI_PHY_CONF0_SELDATAENPOL_MASK);
785 static void dw_hdmi_phy_sel_interface_control(struct dw_hdmi *hdmi, u8 enable)
787 hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
788 HDMI_PHY_CONF0_SELDIPIF_OFFSET,
789 HDMI_PHY_CONF0_SELDIPIF_MASK);
792 static int hdmi_phy_configure(struct dw_hdmi *hdmi, unsigned char prep,
793 unsigned char res, int cscon)
797 const struct dw_hdmi_plat_data *pdata = hdmi->plat_data;
798 const struct dw_hdmi_mpll_config *mpll_config = pdata->mpll_cfg;
799 const struct dw_hdmi_curr_ctrl *curr_ctrl = pdata->cur_ctr;
800 const struct dw_hdmi_phy_config *phy_config = pdata->phy_config;
806 case 0: /* color resolution 0 is 8 bit colour depth */
808 res_idx = DW_HDMI_RES_8;
811 res_idx = DW_HDMI_RES_10;
814 res_idx = DW_HDMI_RES_12;
820 /* PLL/MPLL Cfg - always match on final entry */
821 for (; mpll_config->mpixelclock != ~0UL; mpll_config++)
822 if (hdmi->hdmi_data.video_mode.mpixelclock <=
823 mpll_config->mpixelclock)
826 for (; curr_ctrl->mpixelclock != ~0UL; curr_ctrl++)
827 if (hdmi->hdmi_data.video_mode.mpixelclock <=
828 curr_ctrl->mpixelclock)
831 for (; phy_config->mpixelclock != ~0UL; phy_config++)
832 if (hdmi->hdmi_data.video_mode.mpixelclock <=
833 phy_config->mpixelclock)
836 if (mpll_config->mpixelclock == ~0UL ||
837 curr_ctrl->mpixelclock == ~0UL ||
838 phy_config->mpixelclock == ~0UL) {
839 dev_err(hdmi->dev, "Pixel clock %d - unsupported by HDMI\n",
840 hdmi->hdmi_data.video_mode.mpixelclock);
844 /* Enable csc path */
846 val = HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_IN_PATH;
848 val = HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_BYPASS;
850 hdmi_writeb(hdmi, val, HDMI_MC_FLOWCTRL);
852 /* gen2 tx power off */
853 dw_hdmi_phy_gen2_txpwron(hdmi, 0);
856 dw_hdmi_phy_gen2_pddq(hdmi, 1);
859 hdmi_writeb(hdmi, HDMI_MC_PHYRSTZ_DEASSERT, HDMI_MC_PHYRSTZ);
860 hdmi_writeb(hdmi, HDMI_MC_PHYRSTZ_ASSERT, HDMI_MC_PHYRSTZ);
862 hdmi_writeb(hdmi, HDMI_MC_HEACPHY_RST_ASSERT, HDMI_MC_HEACPHY_RST);
864 hdmi_phy_test_clear(hdmi, 1);
865 hdmi_writeb(hdmi, HDMI_PHY_I2CM_SLAVE_ADDR_PHY_GEN2,
866 HDMI_PHY_I2CM_SLAVE_ADDR);
867 hdmi_phy_test_clear(hdmi, 0);
869 hdmi_phy_i2c_write(hdmi, mpll_config->res[res_idx].cpce, 0x06);
870 hdmi_phy_i2c_write(hdmi, mpll_config->res[res_idx].gmp, 0x15);
873 hdmi_phy_i2c_write(hdmi, curr_ctrl->curr[res_idx], 0x10);
875 hdmi_phy_i2c_write(hdmi, 0x0000, 0x13); /* PLLPHBYCTRL */
876 hdmi_phy_i2c_write(hdmi, 0x0006, 0x17);
878 hdmi_phy_i2c_write(hdmi, phy_config->term, 0x19); /* TXTERM */
879 hdmi_phy_i2c_write(hdmi, phy_config->sym_ctr, 0x09); /* CKSYMTXCTRL */
880 hdmi_phy_i2c_write(hdmi, phy_config->vlev_ctr, 0x0E); /* VLEVCTRL */
882 /* REMOVE CLK TERM */
883 hdmi_phy_i2c_write(hdmi, 0x8000, 0x05); /* CKCALCTRL */
885 dw_hdmi_phy_enable_powerdown(hdmi, false);
887 /* toggle TMDS enable */
888 dw_hdmi_phy_enable_tmds(hdmi, 0);
889 dw_hdmi_phy_enable_tmds(hdmi, 1);
891 /* gen2 tx power on */
892 dw_hdmi_phy_gen2_txpwron(hdmi, 1);
893 dw_hdmi_phy_gen2_pddq(hdmi, 0);
895 if (hdmi->dev_type == RK3288_HDMI)
896 dw_hdmi_phy_enable_spare(hdmi, 1);
898 /*Wait for PHY PLL lock */
901 val = hdmi_readb(hdmi, HDMI_PHY_STAT0) & HDMI_PHY_TX_PHY_LOCK;
906 dev_err(hdmi->dev, "PHY PLL not locked\n");
917 static int dw_hdmi_phy_init(struct dw_hdmi *hdmi)
922 /*check csc whether needed activated in HDMI mode */
923 cscon = hdmi->sink_is_hdmi && is_color_space_conversion(hdmi);
925 /* HDMI Phy spec says to do the phy initialization sequence twice */
926 for (i = 0; i < 2; i++) {
927 dw_hdmi_phy_sel_data_en_pol(hdmi, 1);
928 dw_hdmi_phy_sel_interface_control(hdmi, 0);
929 dw_hdmi_phy_enable_tmds(hdmi, 0);
930 dw_hdmi_phy_enable_powerdown(hdmi, true);
933 ret = hdmi_phy_configure(hdmi, 0, 8, cscon);
938 hdmi->phy_enabled = true;
942 static void hdmi_tx_hdcp_config(struct dw_hdmi *hdmi)
946 if (hdmi->hdmi_data.video_mode.mdataenablepolarity)
947 de = HDMI_A_VIDPOLCFG_DATAENPOL_ACTIVE_HIGH;
949 de = HDMI_A_VIDPOLCFG_DATAENPOL_ACTIVE_LOW;
951 /* disable rx detect */
952 hdmi_modb(hdmi, HDMI_A_HDCPCFG0_RXDETECT_DISABLE,
953 HDMI_A_HDCPCFG0_RXDETECT_MASK, HDMI_A_HDCPCFG0);
955 hdmi_modb(hdmi, de, HDMI_A_VIDPOLCFG_DATAENPOL_MASK, HDMI_A_VIDPOLCFG);
957 hdmi_modb(hdmi, HDMI_A_HDCPCFG1_ENCRYPTIONDISABLE_DISABLE,
958 HDMI_A_HDCPCFG1_ENCRYPTIONDISABLE_MASK, HDMI_A_HDCPCFG1);
961 static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
963 struct hdmi_avi_infoframe frame;
966 /* Initialise info frame from DRM mode */
967 drm_hdmi_avi_infoframe_from_display_mode(&frame, mode);
969 if (hdmi->hdmi_data.enc_out_format == YCBCR444)
970 frame.colorspace = HDMI_COLORSPACE_YUV444;
971 else if (hdmi->hdmi_data.enc_out_format == YCBCR422_8BITS)
972 frame.colorspace = HDMI_COLORSPACE_YUV422;
974 frame.colorspace = HDMI_COLORSPACE_RGB;
976 /* Set up colorimetry */
977 if (hdmi->hdmi_data.enc_out_format == XVYCC444) {
978 frame.colorimetry = HDMI_COLORIMETRY_EXTENDED;
979 if (hdmi->hdmi_data.colorimetry == HDMI_COLORIMETRY_ITU_601)
980 frame.extended_colorimetry =
981 HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
982 else /*hdmi->hdmi_data.colorimetry == HDMI_COLORIMETRY_ITU_709*/
983 frame.extended_colorimetry =
984 HDMI_EXTENDED_COLORIMETRY_XV_YCC_709;
985 } else if (hdmi->hdmi_data.enc_out_format != RGB) {
986 frame.colorimetry = hdmi->hdmi_data.colorimetry;
987 frame.extended_colorimetry = HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
988 } else { /* Carries no data */
989 frame.colorimetry = HDMI_COLORIMETRY_NONE;
990 frame.extended_colorimetry = HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
993 frame.scan_mode = HDMI_SCAN_MODE_NONE;
996 * The Designware IP uses a different byte format from standard
997 * AVI info frames, though generally the bits are in the correct
1002 * AVI data byte 1 differences: Colorspace in bits 4,5 rather than 5,6,
1003 * active aspect present in bit 6 rather than 4.
1005 val = (frame.colorspace & 3) << 4 | (frame.scan_mode & 0x3);
1006 if (frame.active_aspect & 15)
1007 val |= HDMI_FC_AVICONF0_ACTIVE_FMT_INFO_PRESENT;
1008 if (frame.top_bar || frame.bottom_bar)
1009 val |= HDMI_FC_AVICONF0_BAR_DATA_HORIZ_BAR;
1010 if (frame.left_bar || frame.right_bar)
1011 val |= HDMI_FC_AVICONF0_BAR_DATA_VERT_BAR;
1012 hdmi_writeb(hdmi, val, HDMI_FC_AVICONF0);
1014 /* AVI data byte 2 differences: none */
1015 val = ((frame.colorimetry & 0x3) << 6) |
1016 ((frame.picture_aspect & 0x3) << 4) |
1017 (frame.active_aspect & 0xf);
1018 hdmi_writeb(hdmi, val, HDMI_FC_AVICONF1);
1020 /* AVI data byte 3 differences: none */
1021 val = ((frame.extended_colorimetry & 0x7) << 4) |
1022 ((frame.quantization_range & 0x3) << 2) |
1025 val |= HDMI_FC_AVICONF2_IT_CONTENT_VALID;
1026 hdmi_writeb(hdmi, val, HDMI_FC_AVICONF2);
1028 /* AVI data byte 4 differences: none */
1029 val = frame.video_code & 0x7f;
1030 hdmi_writeb(hdmi, val, HDMI_FC_AVIVID);
1032 /* AVI Data Byte 5- set up input and output pixel repetition */
1033 val = (((hdmi->hdmi_data.video_mode.mpixelrepetitioninput + 1) <<
1034 HDMI_FC_PRCONF_INCOMING_PR_FACTOR_OFFSET) &
1035 HDMI_FC_PRCONF_INCOMING_PR_FACTOR_MASK) |
1036 ((hdmi->hdmi_data.video_mode.mpixelrepetitionoutput <<
1037 HDMI_FC_PRCONF_OUTPUT_PR_FACTOR_OFFSET) &
1038 HDMI_FC_PRCONF_OUTPUT_PR_FACTOR_MASK);
1039 hdmi_writeb(hdmi, val, HDMI_FC_PRCONF);
1042 * AVI data byte 5 differences: content type in 0,1 rather than 4,5,
1043 * ycc range in bits 2,3 rather than 6,7
1045 val = ((frame.ycc_quantization_range & 0x3) << 2) |
1046 (frame.content_type & 0x3);
1047 hdmi_writeb(hdmi, val, HDMI_FC_AVICONF3);
1049 /* AVI Data Bytes 6-13 */
1050 hdmi_writeb(hdmi, frame.top_bar & 0xff, HDMI_FC_AVIETB0);
1051 hdmi_writeb(hdmi, (frame.top_bar >> 8) & 0xff, HDMI_FC_AVIETB1);
1052 hdmi_writeb(hdmi, frame.bottom_bar & 0xff, HDMI_FC_AVISBB0);
1053 hdmi_writeb(hdmi, (frame.bottom_bar >> 8) & 0xff, HDMI_FC_AVISBB1);
1054 hdmi_writeb(hdmi, frame.left_bar & 0xff, HDMI_FC_AVIELB0);
1055 hdmi_writeb(hdmi, (frame.left_bar >> 8) & 0xff, HDMI_FC_AVIELB1);
1056 hdmi_writeb(hdmi, frame.right_bar & 0xff, HDMI_FC_AVISRB0);
1057 hdmi_writeb(hdmi, (frame.right_bar >> 8) & 0xff, HDMI_FC_AVISRB1);
1060 static void hdmi_av_composer(struct dw_hdmi *hdmi,
1061 const struct drm_display_mode *mode)
1064 struct hdmi_vmode *vmode = &hdmi->hdmi_data.video_mode;
1065 int hblank, vblank, h_de_hs, v_de_vs, hsync_len, vsync_len;
1066 unsigned int vdisplay;
1068 vmode->mpixelclock = mode->clock * 1000;
1070 dev_dbg(hdmi->dev, "final pixclk = %d\n", vmode->mpixelclock);
1072 /* Set up HDMI_FC_INVIDCONF */
1073 inv_val = (hdmi->hdmi_data.hdcp_enable ?
1074 HDMI_FC_INVIDCONF_HDCP_KEEPOUT_ACTIVE :
1075 HDMI_FC_INVIDCONF_HDCP_KEEPOUT_INACTIVE);
1077 inv_val |= mode->flags & DRM_MODE_FLAG_PVSYNC ?
1078 HDMI_FC_INVIDCONF_VSYNC_IN_POLARITY_ACTIVE_HIGH :
1079 HDMI_FC_INVIDCONF_VSYNC_IN_POLARITY_ACTIVE_LOW;
1081 inv_val |= mode->flags & DRM_MODE_FLAG_PHSYNC ?
1082 HDMI_FC_INVIDCONF_HSYNC_IN_POLARITY_ACTIVE_HIGH :
1083 HDMI_FC_INVIDCONF_HSYNC_IN_POLARITY_ACTIVE_LOW;
1085 inv_val |= (vmode->mdataenablepolarity ?
1086 HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_HIGH :
1087 HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_LOW);
1089 if (hdmi->vic == 39)
1090 inv_val |= HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_HIGH;
1092 inv_val |= mode->flags & DRM_MODE_FLAG_INTERLACE ?
1093 HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_HIGH :
1094 HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_LOW;
1096 inv_val |= mode->flags & DRM_MODE_FLAG_INTERLACE ?
1097 HDMI_FC_INVIDCONF_IN_I_P_INTERLACED :
1098 HDMI_FC_INVIDCONF_IN_I_P_PROGRESSIVE;
1100 inv_val |= hdmi->sink_is_hdmi ?
1101 HDMI_FC_INVIDCONF_DVI_MODEZ_HDMI_MODE :
1102 HDMI_FC_INVIDCONF_DVI_MODEZ_DVI_MODE;
1104 hdmi_writeb(hdmi, inv_val, HDMI_FC_INVIDCONF);
1106 vdisplay = mode->vdisplay;
1107 vblank = mode->vtotal - mode->vdisplay;
1108 v_de_vs = mode->vsync_start - mode->vdisplay;
1109 vsync_len = mode->vsync_end - mode->vsync_start;
1112 * When we're setting an interlaced mode, we need
1113 * to adjust the vertical timing to suit.
1115 if (mode->flags & DRM_MODE_FLAG_INTERLACE) {
1122 /* Set up horizontal active pixel width */
1123 hdmi_writeb(hdmi, mode->hdisplay >> 8, HDMI_FC_INHACTV1);
1124 hdmi_writeb(hdmi, mode->hdisplay, HDMI_FC_INHACTV0);
1126 /* Set up vertical active lines */
1127 hdmi_writeb(hdmi, vdisplay >> 8, HDMI_FC_INVACTV1);
1128 hdmi_writeb(hdmi, vdisplay, HDMI_FC_INVACTV0);
1130 /* Set up horizontal blanking pixel region width */
1131 hblank = mode->htotal - mode->hdisplay;
1132 hdmi_writeb(hdmi, hblank >> 8, HDMI_FC_INHBLANK1);
1133 hdmi_writeb(hdmi, hblank, HDMI_FC_INHBLANK0);
1135 /* Set up vertical blanking pixel region width */
1136 hdmi_writeb(hdmi, vblank, HDMI_FC_INVBLANK);
1138 /* Set up HSYNC active edge delay width (in pixel clks) */
1139 h_de_hs = mode->hsync_start - mode->hdisplay;
1140 hdmi_writeb(hdmi, h_de_hs >> 8, HDMI_FC_HSYNCINDELAY1);
1141 hdmi_writeb(hdmi, h_de_hs, HDMI_FC_HSYNCINDELAY0);
1143 /* Set up VSYNC active edge delay (in lines) */
1144 hdmi_writeb(hdmi, v_de_vs, HDMI_FC_VSYNCINDELAY);
1146 /* Set up HSYNC active pulse width (in pixel clks) */
1147 hsync_len = mode->hsync_end - mode->hsync_start;
1148 hdmi_writeb(hdmi, hsync_len >> 8, HDMI_FC_HSYNCINWIDTH1);
1149 hdmi_writeb(hdmi, hsync_len, HDMI_FC_HSYNCINWIDTH0);
1151 /* Set up VSYNC active edge delay (in lines) */
1152 hdmi_writeb(hdmi, vsync_len, HDMI_FC_VSYNCINWIDTH);
1155 static void dw_hdmi_phy_disable(struct dw_hdmi *hdmi)
1157 if (!hdmi->phy_enabled)
1160 dw_hdmi_phy_enable_tmds(hdmi, 0);
1161 dw_hdmi_phy_enable_powerdown(hdmi, true);
1163 hdmi->phy_enabled = false;
1166 /* HDMI Initialization Step B.4 */
1167 static void dw_hdmi_enable_video_path(struct dw_hdmi *hdmi)
1171 /* control period minimum duration */
1172 hdmi_writeb(hdmi, 12, HDMI_FC_CTRLDUR);
1173 hdmi_writeb(hdmi, 32, HDMI_FC_EXCTRLDUR);
1174 hdmi_writeb(hdmi, 1, HDMI_FC_EXCTRLSPAC);
1176 /* Set to fill TMDS data channels */
1177 hdmi_writeb(hdmi, 0x0B, HDMI_FC_CH0PREAM);
1178 hdmi_writeb(hdmi, 0x16, HDMI_FC_CH1PREAM);
1179 hdmi_writeb(hdmi, 0x21, HDMI_FC_CH2PREAM);
1181 /* Enable pixel clock and tmds data path */
1183 clkdis &= ~HDMI_MC_CLKDIS_PIXELCLK_DISABLE;
1184 hdmi_writeb(hdmi, clkdis, HDMI_MC_CLKDIS);
1186 clkdis &= ~HDMI_MC_CLKDIS_TMDSCLK_DISABLE;
1187 hdmi_writeb(hdmi, clkdis, HDMI_MC_CLKDIS);
1189 /* Enable csc path */
1190 if (is_color_space_conversion(hdmi)) {
1191 clkdis &= ~HDMI_MC_CLKDIS_CSCCLK_DISABLE;
1192 hdmi_writeb(hdmi, clkdis, HDMI_MC_CLKDIS);
1196 static void hdmi_enable_audio_clk(struct dw_hdmi *hdmi)
1198 hdmi_modb(hdmi, 0, HDMI_MC_CLKDIS_AUDCLK_DISABLE, HDMI_MC_CLKDIS);
1201 /* Workaround to clear the overflow condition */
1202 static void dw_hdmi_clear_overflow(struct dw_hdmi *hdmi)
1207 /* TMDS software reset */
1208 hdmi_writeb(hdmi, (u8)~HDMI_MC_SWRSTZ_TMDSSWRST_REQ, HDMI_MC_SWRSTZ);
1210 val = hdmi_readb(hdmi, HDMI_FC_INVIDCONF);
1211 if (hdmi->dev_type == IMX6DL_HDMI) {
1212 hdmi_writeb(hdmi, val, HDMI_FC_INVIDCONF);
1216 for (count = 0; count < 4; count++)
1217 hdmi_writeb(hdmi, val, HDMI_FC_INVIDCONF);
1220 static void hdmi_enable_overflow_interrupts(struct dw_hdmi *hdmi)
1222 hdmi_writeb(hdmi, 0, HDMI_FC_MASK2);
1223 hdmi_writeb(hdmi, 0, HDMI_IH_MUTE_FC_STAT2);
1226 static void hdmi_disable_overflow_interrupts(struct dw_hdmi *hdmi)
1228 hdmi_writeb(hdmi, HDMI_IH_MUTE_FC_STAT2_OVERFLOW_MASK,
1229 HDMI_IH_MUTE_FC_STAT2);
1232 static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
1236 hdmi_disable_overflow_interrupts(hdmi);
1238 hdmi->vic = drm_match_cea_mode(mode);
1241 dev_dbg(hdmi->dev, "Non-CEA mode used in HDMI\n");
1243 dev_dbg(hdmi->dev, "CEA mode used vic=%d\n", hdmi->vic);
1246 if ((hdmi->vic == 6) || (hdmi->vic == 7) ||
1247 (hdmi->vic == 21) || (hdmi->vic == 22) ||
1248 (hdmi->vic == 2) || (hdmi->vic == 3) ||
1249 (hdmi->vic == 17) || (hdmi->vic == 18))
1250 hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_601;
1252 hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_709;
1254 hdmi->hdmi_data.video_mode.mpixelrepetitionoutput = 0;
1255 hdmi->hdmi_data.video_mode.mpixelrepetitioninput = 0;
1257 /* TODO: Get input format from IPU (via FB driver interface) */
1258 hdmi->hdmi_data.enc_in_format = RGB;
1260 hdmi->hdmi_data.enc_out_format = RGB;
1262 hdmi->hdmi_data.enc_color_depth = 8;
1263 hdmi->hdmi_data.pix_repet_factor = 0;
1264 hdmi->hdmi_data.hdcp_enable = 0;
1265 hdmi->hdmi_data.video_mode.mdataenablepolarity = true;
1267 /* HDMI Initialization Step B.1 */
1268 hdmi_av_composer(hdmi, mode);
1270 /* HDMI Initializateion Step B.2 */
1271 ret = dw_hdmi_phy_init(hdmi);
1275 /* HDMI Initialization Step B.3 */
1276 dw_hdmi_enable_video_path(hdmi);
1278 if (hdmi->sink_has_audio) {
1279 dev_dbg(hdmi->dev, "sink has audio support\n");
1281 /* HDMI Initialization Step E - Configure audio */
1282 hdmi_clk_regenerator_update_pixel_clock(hdmi);
1283 hdmi_enable_audio_clk(hdmi);
1286 /* not for DVI mode */
1287 if (hdmi->sink_is_hdmi) {
1288 dev_dbg(hdmi->dev, "%s HDMI mode\n", __func__);
1290 /* HDMI Initialization Step F - Configure AVI InfoFrame */
1291 hdmi_config_AVI(hdmi, mode);
1293 dev_dbg(hdmi->dev, "%s DVI mode\n", __func__);
1296 hdmi_video_packetize(hdmi);
1297 hdmi_video_csc(hdmi);
1298 hdmi_video_sample(hdmi);
1299 hdmi_tx_hdcp_config(hdmi);
1301 dw_hdmi_clear_overflow(hdmi);
1302 if (hdmi->cable_plugin && hdmi->sink_is_hdmi)
1303 hdmi_enable_overflow_interrupts(hdmi);
1308 /* Wait until we are registered to enable interrupts */
1309 static int dw_hdmi_fb_registered(struct dw_hdmi *hdmi)
1311 hdmi_writeb(hdmi, HDMI_PHY_I2CM_INT_ADDR_DONE_POL,
1312 HDMI_PHY_I2CM_INT_ADDR);
1314 hdmi_writeb(hdmi, HDMI_PHY_I2CM_CTLINT_ADDR_NAC_POL |
1315 HDMI_PHY_I2CM_CTLINT_ADDR_ARBITRATION_POL,
1316 HDMI_PHY_I2CM_CTLINT_ADDR);
1318 /* enable cable hot plug irq */
1319 hdmi_writeb(hdmi, hdmi->phy_mask, HDMI_PHY_MASK0);
1321 /* Clear Hotplug interrupts */
1322 hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE,
1328 static void initialize_hdmi_ih_mutes(struct dw_hdmi *hdmi)
1333 * Boot up defaults are:
1334 * HDMI_IH_MUTE = 0x03 (disabled)
1335 * HDMI_IH_MUTE_* = 0x00 (enabled)
1337 * Disable top level interrupt bits in HDMI block
1339 ih_mute = hdmi_readb(hdmi, HDMI_IH_MUTE) |
1340 HDMI_IH_MUTE_MUTE_WAKEUP_INTERRUPT |
1341 HDMI_IH_MUTE_MUTE_ALL_INTERRUPT;
1343 hdmi_writeb(hdmi, ih_mute, HDMI_IH_MUTE);
1345 /* by default mask all interrupts */
1346 hdmi_writeb(hdmi, 0xff, HDMI_VP_MASK);
1347 hdmi_writeb(hdmi, 0xff, HDMI_FC_MASK0);
1348 hdmi_writeb(hdmi, 0xff, HDMI_FC_MASK1);
1349 hdmi_writeb(hdmi, 0xff, HDMI_FC_MASK2);
1350 hdmi_writeb(hdmi, 0xff, HDMI_PHY_MASK0);
1351 hdmi_writeb(hdmi, 0xff, HDMI_PHY_I2CM_INT_ADDR);
1352 hdmi_writeb(hdmi, 0xff, HDMI_PHY_I2CM_CTLINT_ADDR);
1353 hdmi_writeb(hdmi, 0xff, HDMI_AUD_INT);
1354 hdmi_writeb(hdmi, 0xff, HDMI_AUD_SPDIFINT);
1355 hdmi_writeb(hdmi, 0xff, HDMI_AUD_HBR_MASK);
1356 hdmi_writeb(hdmi, 0xff, HDMI_GP_MASK);
1357 hdmi_writeb(hdmi, 0xff, HDMI_A_APIINTMSK);
1358 hdmi_writeb(hdmi, 0xff, HDMI_CEC_MASK);
1359 hdmi_writeb(hdmi, 0xff, HDMI_I2CM_INT);
1360 hdmi_writeb(hdmi, 0xff, HDMI_I2CM_CTLINT);
1362 /* Disable interrupts in the IH_MUTE_* registers */
1363 hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_FC_STAT0);
1364 hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_FC_STAT1);
1365 hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_FC_STAT2);
1366 hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_AS_STAT0);
1367 hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_PHY_STAT0);
1368 hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_I2CM_STAT0);
1369 hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_CEC_STAT0);
1370 hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_VP_STAT0);
1371 hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_I2CMPHY_STAT0);
1372 hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_AHBDMAAUD_STAT0);
1374 /* Enable top level interrupt bits in HDMI block */
1375 ih_mute &= ~(HDMI_IH_MUTE_MUTE_WAKEUP_INTERRUPT |
1376 HDMI_IH_MUTE_MUTE_ALL_INTERRUPT);
1377 hdmi_writeb(hdmi, ih_mute, HDMI_IH_MUTE);
1380 static void dw_hdmi_poweron(struct dw_hdmi *hdmi)
1382 hdmi->bridge_is_on = true;
1383 dw_hdmi_setup(hdmi, &hdmi->previous_mode);
1386 static void dw_hdmi_poweroff(struct dw_hdmi *hdmi)
1388 dw_hdmi_phy_disable(hdmi);
1389 hdmi->bridge_is_on = false;
1392 static void dw_hdmi_update_power(struct dw_hdmi *hdmi)
1394 int force = hdmi->force;
1396 if (hdmi->disabled) {
1397 force = DRM_FORCE_OFF;
1398 } else if (force == DRM_FORCE_UNSPECIFIED) {
1400 force = DRM_FORCE_ON;
1402 force = DRM_FORCE_OFF;
1405 if (force == DRM_FORCE_OFF) {
1406 if (hdmi->bridge_is_on)
1407 dw_hdmi_poweroff(hdmi);
1409 if (!hdmi->bridge_is_on)
1410 dw_hdmi_poweron(hdmi);
1415 * Adjust the detection of RXSENSE according to whether we have a forced
1416 * connection mode enabled, or whether we have been disabled. There is
1417 * no point processing RXSENSE interrupts if we have a forced connection
1418 * state, or DRM has us disabled.
1420 * We also disable rxsense interrupts when we think we're disconnected
1421 * to avoid floating TDMS signals giving false rxsense interrupts.
1423 * Note: we still need to listen for HPD interrupts even when DRM has us
1424 * disabled so that we can detect a connect event.
1426 static void dw_hdmi_update_phy_mask(struct dw_hdmi *hdmi)
1428 u8 old_mask = hdmi->phy_mask;
1430 if (hdmi->force || hdmi->disabled || !hdmi->rxsense)
1431 hdmi->phy_mask |= HDMI_PHY_RX_SENSE;
1433 hdmi->phy_mask &= ~HDMI_PHY_RX_SENSE;
1435 if (old_mask != hdmi->phy_mask)
1436 hdmi_writeb(hdmi, hdmi->phy_mask, HDMI_PHY_MASK0);
1439 static void dw_hdmi_bridge_mode_set(struct drm_bridge *bridge,
1440 struct drm_display_mode *orig_mode,
1441 struct drm_display_mode *mode)
1443 struct dw_hdmi *hdmi = bridge->driver_private;
1445 mutex_lock(&hdmi->mutex);
1447 /* Store the display mode for plugin/DKMS poweron events */
1448 memcpy(&hdmi->previous_mode, mode, sizeof(hdmi->previous_mode));
1450 mutex_unlock(&hdmi->mutex);
1453 static bool dw_hdmi_bridge_mode_fixup(struct drm_bridge *bridge,
1454 const struct drm_display_mode *mode,
1455 struct drm_display_mode *adjusted_mode)
1460 static void dw_hdmi_bridge_disable(struct drm_bridge *bridge)
1462 struct dw_hdmi *hdmi = bridge->driver_private;
1464 mutex_lock(&hdmi->mutex);
1465 hdmi->disabled = true;
1466 dw_hdmi_update_power(hdmi);
1467 dw_hdmi_update_phy_mask(hdmi);
1468 mutex_unlock(&hdmi->mutex);
1471 static void dw_hdmi_bridge_enable(struct drm_bridge *bridge)
1473 struct dw_hdmi *hdmi = bridge->driver_private;
1475 mutex_lock(&hdmi->mutex);
1476 hdmi->disabled = false;
1477 dw_hdmi_update_power(hdmi);
1478 dw_hdmi_update_phy_mask(hdmi);
1479 mutex_unlock(&hdmi->mutex);
1482 static void dw_hdmi_bridge_nop(struct drm_bridge *bridge)
1487 static enum drm_connector_status
1488 dw_hdmi_connector_detect(struct drm_connector *connector, bool force)
1490 struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi,
1493 mutex_lock(&hdmi->mutex);
1494 hdmi->force = DRM_FORCE_UNSPECIFIED;
1495 dw_hdmi_update_power(hdmi);
1496 dw_hdmi_update_phy_mask(hdmi);
1497 mutex_unlock(&hdmi->mutex);
1499 return hdmi_readb(hdmi, HDMI_PHY_STAT0) & HDMI_PHY_HPD ?
1500 connector_status_connected : connector_status_disconnected;
1503 static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
1505 struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi,
1513 edid = drm_get_edid(connector, hdmi->ddc);
1515 dev_dbg(hdmi->dev, "got edid: width[%d] x height[%d]\n",
1516 edid->width_cm, edid->height_cm);
1518 hdmi->sink_is_hdmi = drm_detect_hdmi_monitor(edid);
1519 hdmi->sink_has_audio = drm_detect_monitor_audio(edid);
1520 drm_mode_connector_update_edid_property(connector, edid);
1521 ret = drm_add_edid_modes(connector, edid);
1523 drm_edid_to_eld(connector, edid);
1526 dev_dbg(hdmi->dev, "failed to get edid\n");
1532 static enum drm_mode_status
1533 dw_hdmi_connector_mode_valid(struct drm_connector *connector,
1534 struct drm_display_mode *mode)
1536 struct dw_hdmi *hdmi = container_of(connector,
1537 struct dw_hdmi, connector);
1538 enum drm_mode_status mode_status = MODE_OK;
1540 /* We don't support double-clocked modes */
1541 if (mode->flags & DRM_MODE_FLAG_DBLCLK)
1544 if (hdmi->plat_data->mode_valid)
1545 mode_status = hdmi->plat_data->mode_valid(connector, mode);
1550 static struct drm_encoder *dw_hdmi_connector_best_encoder(struct drm_connector
1553 struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi,
1556 return hdmi->encoder;
1559 static void dw_hdmi_connector_destroy(struct drm_connector *connector)
1561 drm_connector_unregister(connector);
1562 drm_connector_cleanup(connector);
1565 static void dw_hdmi_connector_force(struct drm_connector *connector)
1567 struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi,
1570 mutex_lock(&hdmi->mutex);
1571 hdmi->force = connector->force;
1572 dw_hdmi_update_power(hdmi);
1573 dw_hdmi_update_phy_mask(hdmi);
1574 mutex_unlock(&hdmi->mutex);
1577 static struct drm_connector_funcs dw_hdmi_connector_funcs = {
1578 .dpms = drm_helper_connector_dpms,
1579 .fill_modes = drm_helper_probe_single_connector_modes,
1580 .detect = dw_hdmi_connector_detect,
1581 .destroy = dw_hdmi_connector_destroy,
1582 .force = dw_hdmi_connector_force,
1585 static struct drm_connector_helper_funcs dw_hdmi_connector_helper_funcs = {
1586 .get_modes = dw_hdmi_connector_get_modes,
1587 .mode_valid = dw_hdmi_connector_mode_valid,
1588 .best_encoder = dw_hdmi_connector_best_encoder,
1591 static struct drm_bridge_funcs dw_hdmi_bridge_funcs = {
1592 .enable = dw_hdmi_bridge_enable,
1593 .disable = dw_hdmi_bridge_disable,
1594 .pre_enable = dw_hdmi_bridge_nop,
1595 .post_disable = dw_hdmi_bridge_nop,
1596 .mode_set = dw_hdmi_bridge_mode_set,
1597 .mode_fixup = dw_hdmi_bridge_mode_fixup,
1600 static irqreturn_t dw_hdmi_hardirq(int irq, void *dev_id)
1602 struct dw_hdmi *hdmi = dev_id;
1605 intr_stat = hdmi_readb(hdmi, HDMI_IH_PHY_STAT0);
1607 hdmi_writeb(hdmi, ~0, HDMI_IH_MUTE_PHY_STAT0);
1609 return intr_stat ? IRQ_WAKE_THREAD : IRQ_NONE;
1612 static irqreturn_t dw_hdmi_irq(int irq, void *dev_id)
1614 struct dw_hdmi *hdmi = dev_id;
1615 u8 intr_stat, phy_int_pol, phy_pol_mask, phy_stat;
1617 intr_stat = hdmi_readb(hdmi, HDMI_IH_PHY_STAT0);
1618 phy_int_pol = hdmi_readb(hdmi, HDMI_PHY_POL0);
1619 phy_stat = hdmi_readb(hdmi, HDMI_PHY_STAT0);
1622 if (intr_stat & HDMI_IH_PHY_STAT0_HPD)
1623 phy_pol_mask |= HDMI_PHY_HPD;
1624 if (intr_stat & HDMI_IH_PHY_STAT0_RX_SENSE0)
1625 phy_pol_mask |= HDMI_PHY_RX_SENSE0;
1626 if (intr_stat & HDMI_IH_PHY_STAT0_RX_SENSE1)
1627 phy_pol_mask |= HDMI_PHY_RX_SENSE1;
1628 if (intr_stat & HDMI_IH_PHY_STAT0_RX_SENSE2)
1629 phy_pol_mask |= HDMI_PHY_RX_SENSE2;
1630 if (intr_stat & HDMI_IH_PHY_STAT0_RX_SENSE3)
1631 phy_pol_mask |= HDMI_PHY_RX_SENSE3;
1634 hdmi_modb(hdmi, ~phy_int_pol, phy_pol_mask, HDMI_PHY_POL0);
1637 * RX sense tells us whether the TDMS transmitters are detecting
1638 * load - in other words, there's something listening on the
1639 * other end of the link. Use this to decide whether we should
1640 * power on the phy as HPD may be toggled by the sink to merely
1641 * ask the source to re-read the EDID.
1644 (HDMI_IH_PHY_STAT0_RX_SENSE | HDMI_IH_PHY_STAT0_HPD)) {
1645 mutex_lock(&hdmi->mutex);
1646 if (!hdmi->disabled && !hdmi->force) {
1648 * If the RX sense status indicates we're disconnected,
1649 * clear the software rxsense status.
1651 if (!(phy_stat & HDMI_PHY_RX_SENSE))
1652 hdmi->rxsense = false;
1655 * Only set the software rxsense status when both
1656 * rxsense and hpd indicates we're connected.
1657 * This avoids what seems to be bad behaviour in
1658 * at least iMX6S versions of the phy.
1660 if (phy_stat & HDMI_PHY_HPD)
1661 hdmi->rxsense = true;
1663 dw_hdmi_update_power(hdmi);
1664 dw_hdmi_update_phy_mask(hdmi);
1666 mutex_unlock(&hdmi->mutex);
1669 if (intr_stat & HDMI_IH_PHY_STAT0_HPD) {
1670 dev_dbg(hdmi->dev, "EVENT=%s\n",
1671 phy_int_pol & HDMI_PHY_HPD ? "plugin" : "plugout");
1672 drm_helper_hpd_irq_event(hdmi->bridge->dev);
1675 hdmi_writeb(hdmi, intr_stat, HDMI_IH_PHY_STAT0);
1676 hdmi_writeb(hdmi, ~(HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE),
1677 HDMI_IH_MUTE_PHY_STAT0);
1682 static int dw_hdmi_register(struct drm_device *drm, struct dw_hdmi *hdmi)
1684 struct drm_encoder *encoder = hdmi->encoder;
1685 struct drm_bridge *bridge;
1688 bridge = devm_kzalloc(drm->dev, sizeof(*bridge), GFP_KERNEL);
1690 DRM_ERROR("Failed to allocate drm bridge\n");
1694 hdmi->bridge = bridge;
1695 bridge->driver_private = hdmi;
1696 bridge->funcs = &dw_hdmi_bridge_funcs;
1697 ret = drm_bridge_attach(drm, bridge);
1699 DRM_ERROR("Failed to initialize bridge with drm\n");
1703 encoder->bridge = bridge;
1704 hdmi->connector.polled = DRM_CONNECTOR_POLL_HPD;
1706 drm_connector_helper_add(&hdmi->connector,
1707 &dw_hdmi_connector_helper_funcs);
1708 drm_connector_init(drm, &hdmi->connector, &dw_hdmi_connector_funcs,
1709 DRM_MODE_CONNECTOR_HDMIA);
1711 hdmi->connector.encoder = encoder;
1713 drm_mode_connector_attach_encoder(&hdmi->connector, encoder);
1718 int dw_hdmi_bind(struct device *dev, struct device *master,
1719 void *data, struct drm_encoder *encoder,
1720 struct resource *iores, int irq,
1721 const struct dw_hdmi_plat_data *plat_data)
1723 struct drm_device *drm = data;
1724 struct device_node *np = dev->of_node;
1725 struct platform_device_info pdevinfo;
1726 struct device_node *ddc_node;
1727 struct dw_hdmi_audio_data audio;
1728 struct dw_hdmi *hdmi;
1732 hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL);
1736 hdmi->connector.interlace_allowed = 1;
1738 hdmi->plat_data = plat_data;
1740 hdmi->dev_type = plat_data->dev_type;
1741 hdmi->sample_rate = 48000;
1742 hdmi->encoder = encoder;
1743 hdmi->disabled = true;
1744 hdmi->rxsense = true;
1745 hdmi->phy_mask = (u8)~(HDMI_PHY_HPD | HDMI_PHY_RX_SENSE);
1747 mutex_init(&hdmi->mutex);
1748 mutex_init(&hdmi->audio_mutex);
1749 spin_lock_init(&hdmi->audio_lock);
1751 of_property_read_u32(np, "reg-io-width", &val);
1755 hdmi->write = dw_hdmi_writel;
1756 hdmi->read = dw_hdmi_readl;
1759 hdmi->write = dw_hdmi_writeb;
1760 hdmi->read = dw_hdmi_readb;
1763 dev_err(dev, "reg-io-width must be 1 or 4\n");
1767 ddc_node = of_parse_phandle(np, "ddc-i2c-bus", 0);
1769 hdmi->ddc = of_find_i2c_adapter_by_node(ddc_node);
1770 of_node_put(ddc_node);
1772 dev_dbg(hdmi->dev, "failed to read ddc node\n");
1773 return -EPROBE_DEFER;
1777 dev_dbg(hdmi->dev, "no ddc property found\n");
1780 hdmi->regs = devm_ioremap_resource(dev, iores);
1781 if (IS_ERR(hdmi->regs))
1782 return PTR_ERR(hdmi->regs);
1784 hdmi->isfr_clk = devm_clk_get(hdmi->dev, "isfr");
1785 if (IS_ERR(hdmi->isfr_clk)) {
1786 ret = PTR_ERR(hdmi->isfr_clk);
1787 dev_err(hdmi->dev, "Unable to get HDMI isfr clk: %d\n", ret);
1791 ret = clk_prepare_enable(hdmi->isfr_clk);
1793 dev_err(hdmi->dev, "Cannot enable HDMI isfr clock: %d\n", ret);
1797 hdmi->iahb_clk = devm_clk_get(hdmi->dev, "iahb");
1798 if (IS_ERR(hdmi->iahb_clk)) {
1799 ret = PTR_ERR(hdmi->iahb_clk);
1800 dev_err(hdmi->dev, "Unable to get HDMI iahb clk: %d\n", ret);
1804 ret = clk_prepare_enable(hdmi->iahb_clk);
1806 dev_err(hdmi->dev, "Cannot enable HDMI iahb clock: %d\n", ret);
1810 /* Product and revision IDs */
1812 "Detected HDMI controller 0x%x:0x%x:0x%x:0x%x\n",
1813 hdmi_readb(hdmi, HDMI_DESIGN_ID),
1814 hdmi_readb(hdmi, HDMI_REVISION_ID),
1815 hdmi_readb(hdmi, HDMI_PRODUCT_ID0),
1816 hdmi_readb(hdmi, HDMI_PRODUCT_ID1));
1818 initialize_hdmi_ih_mutes(hdmi);
1820 ret = devm_request_threaded_irq(dev, irq, dw_hdmi_hardirq,
1821 dw_hdmi_irq, IRQF_SHARED,
1822 dev_name(dev), hdmi);
1827 * To prevent overflows in HDMI_IH_FC_STAT2, set the clk regenerator
1828 * N and cts values before enabling phy
1830 hdmi_init_clk_regenerator(hdmi);
1833 * Configure registers related to HDMI interrupt
1834 * generation before registering IRQ.
1836 hdmi_writeb(hdmi, HDMI_PHY_HPD | HDMI_PHY_RX_SENSE, HDMI_PHY_POL0);
1838 /* Clear Hotplug interrupts */
1839 hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE,
1842 ret = dw_hdmi_fb_registered(hdmi);
1846 ret = dw_hdmi_register(drm, hdmi);
1850 /* Unmute interrupts */
1851 hdmi_writeb(hdmi, ~(HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE),
1852 HDMI_IH_MUTE_PHY_STAT0);
1854 memset(&pdevinfo, 0, sizeof(pdevinfo));
1855 pdevinfo.parent = dev;
1856 pdevinfo.id = PLATFORM_DEVID_AUTO;
1858 if (hdmi_readb(hdmi, HDMI_CONFIG1_ID) & HDMI_CONFIG1_AHB) {
1859 audio.phys = iores->start;
1860 audio.base = hdmi->regs;
1863 audio.eld = hdmi->connector.eld;
1865 pdevinfo.name = "dw-hdmi-ahb-audio";
1866 pdevinfo.data = &audio;
1867 pdevinfo.size_data = sizeof(audio);
1868 pdevinfo.dma_mask = DMA_BIT_MASK(32);
1869 hdmi->audio = platform_device_register_full(&pdevinfo);
1872 dev_set_drvdata(dev, hdmi);
1877 clk_disable_unprepare(hdmi->iahb_clk);
1879 clk_disable_unprepare(hdmi->isfr_clk);
1883 EXPORT_SYMBOL_GPL(dw_hdmi_bind);
1885 void dw_hdmi_unbind(struct device *dev, struct device *master, void *data)
1887 struct dw_hdmi *hdmi = dev_get_drvdata(dev);
1889 if (hdmi->audio && !IS_ERR(hdmi->audio))
1890 platform_device_unregister(hdmi->audio);
1892 /* Disable all interrupts */
1893 hdmi_writeb(hdmi, ~0, HDMI_IH_MUTE_PHY_STAT0);
1895 hdmi->connector.funcs->destroy(&hdmi->connector);
1896 hdmi->encoder->funcs->destroy(hdmi->encoder);
1898 clk_disable_unprepare(hdmi->iahb_clk);
1899 clk_disable_unprepare(hdmi->isfr_clk);
1900 i2c_put_adapter(hdmi->ddc);
1902 EXPORT_SYMBOL_GPL(dw_hdmi_unbind);
1904 MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
1905 MODULE_AUTHOR("Andy Yan <andy.yan@rock-chips.com>");
1906 MODULE_AUTHOR("Yakir Yang <ykk@rock-chips.com>");
1907 MODULE_DESCRIPTION("DW HDMI transmitter driver");
1908 MODULE_LICENSE("GPL");
1909 MODULE_ALIAS("platform:dw-hdmi");