Lines Matching +full:hdmi +full:- +full:bridge
1 // SPDX-License-Identifier: GPL-2.0
4 * Copyright (c) 2019-2020. Linaro Limited.
10 #include <linux/media-bus-format.h>
17 #include <sound/hdmi-codec.h>
39 struct drm_bridge bridge;
89 static struct lt9611 *bridge_to_lt9611(struct drm_bridge *bridge)
91 return container_of(bridge, struct lt9611, bridge);
104 { 0x811c, 0x03 }, /* PortA clk lane no-LP mode */
105 { 0x8120, 0x03 }, /* PortB clk lane with-LP mode */
108 return regmap_multi_reg_write(lt9611->regmap, reg_cfg, ARRAY_SIZE(reg_cfg));
123 if (lt9611->dsi1_node)
126 return regmap_multi_reg_write(lt9611->regmap, reg_cfg, ARRAY_SIZE(reg_cfg));
135 h_total = mode->htotal;
136 v_total = mode->vtotal;
138 hactive = mode->hdisplay;
139 hsync_len = mode->hsync_end - mode->hsync_start;
140 hfront_porch = mode->hsync_start - mode->hdisplay;
141 hsync_porch = mode->htotal - mode->hsync_start;
143 vactive = mode->vdisplay;
144 vsync_len = mode->vsync_end - mode->vsync_start;
145 vfront_porch = mode->vsync_start - mode->vdisplay;
146 vsync_porch = mode->vtotal - mode->vsync_start;
148 regmap_write(lt9611->regmap, 0x830d, (u8)(v_total / 256));
149 regmap_write(lt9611->regmap, 0x830e, (u8)(v_total % 256));
151 regmap_write(lt9611->regmap, 0x830f, (u8)(vactive / 256));
152 regmap_write(lt9611->regmap, 0x8310, (u8)(vactive % 256));
154 regmap_write(lt9611->regmap, 0x8311, (u8)(h_total / 256));
155 regmap_write(lt9611->regmap, 0x8312, (u8)(h_total % 256));
157 regmap_write(lt9611->regmap, 0x8313, (u8)(hactive / 256));
158 regmap_write(lt9611->regmap, 0x8314, (u8)(hactive % 256));
160 regmap_write(lt9611->regmap, 0x8315, (u8)(vsync_len % 256));
161 regmap_write(lt9611->regmap, 0x8316, (u8)(hsync_len % 256));
163 regmap_write(lt9611->regmap, 0x8317, (u8)(vfront_porch % 256));
165 regmap_write(lt9611->regmap, 0x8318, (u8)(vsync_porch % 256));
167 regmap_write(lt9611->regmap, 0x8319, (u8)(hfront_porch % 256));
169 regmap_write(lt9611->regmap, 0x831a, (u8)(hsync_porch / 256) |
171 regmap_write(lt9611->regmap, 0x831b, (u8)(hsync_porch % 256));
176 unsigned int pcr_m = mode->clock * 5 * postdiv / 27000;
198 if (mode->flags & DRM_MODE_FLAG_NHSYNC)
200 if (mode->flags & DRM_MODE_FLAG_NVSYNC)
202 regmap_write(lt9611->regmap, 0x831d, pol);
204 regmap_multi_reg_write(lt9611->regmap, reg_cfg, ARRAY_SIZE(reg_cfg));
205 if (lt9611->dsi1_node) {
206 unsigned int hact = mode->hdisplay;
211 regmap_write(lt9611->regmap, 0x830b, hact / 256);
212 regmap_write(lt9611->regmap, 0x830c, hact % 256);
213 regmap_write(lt9611->regmap, 0x8348, hact / 256);
214 regmap_write(lt9611->regmap, 0x8349, hact % 256);
217 regmap_write(lt9611->regmap, 0x8326, pcr_m);
220 regmap_write(lt9611->regmap, 0x8011, 0x5a);
221 regmap_write(lt9611->regmap, 0x8011, 0xfa);
226 unsigned int pclk = mode->clock;
241 regmap_multi_reg_write(lt9611->regmap, reg_cfg, ARRAY_SIZE(reg_cfg));
244 regmap_write(lt9611->regmap, 0x812d, 0x88);
247 regmap_write(lt9611->regmap, 0x812d, 0x99);
250 regmap_write(lt9611->regmap, 0x812d, 0xaa);
256 * - write divide by 64k to 19:16 bits which means shift by 17
257 * - write divide by 256 to 15:8 bits which means shift by 9
258 * - write remainder to 7:0 bits, which means shift by 1
260 regmap_write(lt9611->regmap, 0x82e3, pclk >> 17); /* pclk[19:16] */
261 regmap_write(lt9611->regmap, 0x82e4, pclk >> 9); /* pclk[15:8] */
262 regmap_write(lt9611->regmap, 0x82e5, pclk >> 1); /* pclk[7:0] */
264 regmap_write(lt9611->regmap, 0x82de, 0x20);
265 regmap_write(lt9611->regmap, 0x82de, 0xe0);
267 regmap_write(lt9611->regmap, 0x8016, 0xf1);
268 regmap_write(lt9611->regmap, 0x8016, 0xf3);
278 ret = regmap_read(lt9611->regmap, reg, &temp);
282 ret = regmap_read(lt9611->regmap, reg + 1, &temp2);
326 dev_info(lt9611->dev,
333 dev_err(lt9611->dev, "read video check error\n");
340 regmap_write(lt9611->regmap, 0x82d6, 0x8c);
342 regmap_write(lt9611->regmap, 0x82d6, 0x0c);
343 regmap_write(lt9611->regmap, 0x82d7, 0x04);
350 { 0x8131, 0x44 }, /* HDMI DC mode */
365 /* HDMI AC mode */
366 if (lt9611->ac_mode)
369 regmap_multi_reg_write(lt9611->regmap, reg_cfg, ARRAY_SIZE(reg_cfg));
378 regmap_read(lt9611->regmap, 0x820f, &irq_flag3);
379 regmap_read(lt9611->regmap, 0x820c, &irq_flag0);
383 dev_info(lt9611->dev, "hdmi cable disconnected\n");
385 regmap_write(lt9611->regmap, 0x8207, 0xbf);
386 regmap_write(lt9611->regmap, 0x8207, 0x3f);
391 dev_info(lt9611->dev, "hdmi cable connected\n");
393 regmap_write(lt9611->regmap, 0x8207, 0x7f);
394 regmap_write(lt9611->regmap, 0x8207, 0x3f);
397 if (irq_flag3 & 0xc0 && lt9611->bridge.dev)
398 drm_kms_helper_hotplug_event(lt9611->bridge.dev);
402 dev_info(lt9611->dev, "video input changed\n");
403 regmap_write(lt9611->regmap, 0x829e, 0xff);
404 regmap_write(lt9611->regmap, 0x829e, 0xf7);
405 regmap_write(lt9611->regmap, 0x8204, 0xff);
406 regmap_write(lt9611->regmap, 0x8204, 0xfe);
416 regmap_read(lt9611->regmap, 0x8203, &val);
419 regmap_write(lt9611->regmap, 0x8203, val);
420 regmap_write(lt9611->regmap, 0x8207, 0xff); /* clear */
421 regmap_write(lt9611->regmap, 0x8207, 0x3f);
438 regmap_multi_reg_write(lt9611->regmap,
440 lt9611->sleep = true;
471 if (lt9611->power_on)
474 ret = regmap_multi_reg_write(lt9611->regmap, seq, ARRAY_SIZE(seq));
476 lt9611->power_on = true;
485 ret = regmap_write(lt9611->regmap, 0x8130, 0x6a);
487 lt9611->power_on = false;
494 gpiod_set_value_cansleep(lt9611->reset_gpio, 1);
497 gpiod_set_value_cansleep(lt9611->reset_gpio, 0);
500 gpiod_set_value_cansleep(lt9611->reset_gpio, 1);
506 if (!lt9611->enable_gpio)
509 gpiod_set_value_cansleep(lt9611->enable_gpio, 1);
517 lt9611->supplies[0].supply = "vdd";
518 lt9611->supplies[1].supply = "vcc";
520 ret = devm_regulator_bulk_get(lt9611->dev, 2, lt9611->supplies);
524 return regulator_set_load(lt9611->supplies[0].consumer, 300000);
531 ret = regulator_enable(lt9611->supplies[0].consumer);
537 ret = regulator_enable(lt9611->supplies[1].consumer);
539 regulator_disable(lt9611->supplies[0].consumer);
547 lt9611_bridge_detect(struct drm_bridge *bridge, struct drm_connector *connector)
549 struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
553 regmap_read(lt9611->regmap, 0x825e, ®_val);
556 lt9611->status = connected ? connector_status_connected :
559 return lt9611->status;
569 memset(lt9611->edid_buf, 0, sizeof(lt9611->edid_buf));
571 regmap_write(lt9611->regmap, 0x8503, 0xc9);
574 regmap_write(lt9611->regmap, 0x8504, 0xa0);
576 regmap_write(lt9611->regmap, 0x8505, 0x00);
579 regmap_write(lt9611->regmap, 0x8506, EDID_LEN);
580 regmap_write(lt9611->regmap, 0x8514, 0x7f);
584 regmap_write(lt9611->regmap, 0x8505, i * EDID_LEN);
585 regmap_write(lt9611->regmap, 0x8507, 0x36);
586 regmap_write(lt9611->regmap, 0x8507, 0x31);
587 regmap_write(lt9611->regmap, 0x8507, 0x37);
590 regmap_read(lt9611->regmap, 0x8540, &temp);
594 regmap_read(lt9611->regmap, 0x8583, &temp);
595 lt9611->edid_buf[i * EDID_LEN + j] = temp;
599 dev_err(lt9611->dev, "read edid failed: no ack\n");
600 ret = -EIO;
604 dev_err(lt9611->dev, "read edid failed: access not done\n");
605 ret = -EIO;
611 regmap_write(lt9611->regmap, 0x8507, 0x1f);
622 return -EINVAL;
627 return -EINVAL;
632 dev_err(lt9611->dev, "edid read failed\n");
638 memcpy(buf, lt9611->edid_buf + (block * 128), len);
643 /* bridge funcs */
644 static void lt9611_bridge_atomic_enable(struct drm_bridge *bridge,
647 struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
654 connector = drm_atomic_get_new_connector_for_encoder(state, bridge->encoder);
662 crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);
666 mode = &crtc_state->adjusted_mode;
674 dev_err(lt9611->dev, "power on failed\n");
680 lt9611_hdmi_tx_digital(lt9611, connector->display_info.is_hdmi);
687 /* Enable HDMI output */
688 regmap_write(lt9611->regmap, 0x8130, 0xea);
691 static void lt9611_bridge_atomic_disable(struct drm_bridge *bridge,
694 struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
697 /* Disable HDMI output */
698 ret = regmap_write(lt9611->regmap, 0x8130, 0x6a);
700 dev_err(lt9611->dev, "video on failed\n");
705 dev_err(lt9611->dev, "power on failed\n");
713 const struct mipi_dsi_device_info info = { "lt9611", 0, lt9611->dev->of_node};
716 struct device *dev = lt9611->dev;
721 return ERR_PTR(dev_err_probe(lt9611->dev, -EPROBE_DEFER, "failed to find dsi host\n"));
725 dev_err(lt9611->dev, "failed to create dsi device\n");
729 dsi->lanes = 4;
730 dsi->format = MIPI_DSI_FMT_RGB888;
731 dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
743 static int lt9611_bridge_attach(struct drm_bridge *bridge,
747 struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
749 return drm_bridge_attach(encoder, lt9611->next_bridge,
750 bridge, flags);
753 static enum drm_mode_status lt9611_bridge_mode_valid(struct drm_bridge *bridge,
757 struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
759 if (mode->hdisplay > 3840)
762 if (mode->hdisplay > 2000 && !lt9611->dsi1_node)
768 static void lt9611_bridge_atomic_pre_enable(struct drm_bridge *bridge,
771 struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
779 if (!lt9611->sleep)
782 regmap_multi_reg_write(lt9611->regmap,
785 lt9611->sleep = false;
788 static void lt9611_bridge_atomic_post_disable(struct drm_bridge *bridge,
791 struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
796 static const struct drm_edid *lt9611_bridge_edid_read(struct drm_bridge *bridge,
799 struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
805 static void lt9611_bridge_hpd_enable(struct drm_bridge *bridge)
807 struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
815 lt9611_atomic_get_input_bus_fmts(struct drm_bridge *bridge,
831 /* This is the DSI-end bus format */
840 * - 0x01, 0x84df
841 * - 0x04, 0x84c0
848 static int lt9611_hdmi_clear_infoframe(struct drm_bridge *bridge,
851 struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
872 drm_dbg_driver(lt9611->bridge.dev, "Unsupported HDMI InfoFrame %x\n", type);
878 regmap_update_bits(lt9611->regmap, 0x843d, mask, 0);
883 static int lt9611_hdmi_write_infoframe(struct drm_bridge *bridge,
887 struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
913 drm_dbg_driver(lt9611->bridge.dev, "Unsupported HDMI InfoFrame %x\n", type);
920 regmap_write(lt9611->regmap, addr + i, buffer[i]);
922 regmap_update_bits(lt9611->regmap, 0x843d, mask, mask);
929 lt9611_hdmi_tmds_char_rate_valid(const struct drm_bridge *bridge,
940 static int lt9611_hdmi_audio_startup(struct drm_bridge *bridge,
943 struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
945 regmap_write(lt9611->regmap, 0x82d6, 0x8c);
946 regmap_write(lt9611->regmap, 0x82d7, 0x04);
948 regmap_write(lt9611->regmap, 0x8406, 0x08);
949 regmap_write(lt9611->regmap, 0x8407, 0x10);
951 regmap_write(lt9611->regmap, 0x8434, 0xd5);
956 static int lt9611_hdmi_audio_prepare(struct drm_bridge *bridge,
961 struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
963 if (hparms->sample_rate == 48000)
964 regmap_write(lt9611->regmap, 0x840f, 0x2b);
965 else if (hparms->sample_rate == 96000)
966 regmap_write(lt9611->regmap, 0x840f, 0xab);
968 return -EINVAL;
970 regmap_write(lt9611->regmap, 0x8435, 0x00);
971 regmap_write(lt9611->regmap, 0x8436, 0x18);
972 regmap_write(lt9611->regmap, 0x8437, 0x00);
975 &hparms->cea);
978 static void lt9611_hdmi_audio_shutdown(struct drm_bridge *bridge,
981 struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
985 regmap_write(lt9611->regmap, 0x8406, 0x00);
986 regmap_write(lt9611->regmap, 0x8407, 0x00);
1017 lt9611->dsi0_node = of_graph_get_remote_node(dev->of_node, 0, -1);
1018 if (!lt9611->dsi0_node) {
1019 dev_err(lt9611->dev, "failed to get remote node for primary dsi\n");
1020 return -ENODEV;
1023 lt9611->dsi1_node = of_graph_get_remote_node(dev->of_node, 1, -1);
1025 lt9611->ac_mode = of_property_read_bool(dev->of_node, "lt,ac-mode");
1027 return drm_of_find_panel_or_bridge(dev->of_node, 2, -1, NULL, <9611->next_bridge);
1032 struct device *dev = lt9611->dev;
1034 lt9611->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
1035 if (IS_ERR(lt9611->reset_gpio)) {
1037 return PTR_ERR(lt9611->reset_gpio);
1040 lt9611->enable_gpio = devm_gpiod_get_optional(dev, "enable",
1042 if (IS_ERR(lt9611->enable_gpio)) {
1044 return PTR_ERR(lt9611->enable_gpio);
1055 regmap_write(lt9611->regmap, 0x80ee, 0x01);
1056 ret = regmap_read(lt9611->regmap, 0x8002, &rev);
1058 dev_err(lt9611->dev, "failed to read revision: %d\n", ret);
1060 dev_info(lt9611->dev, "LT9611 revision: 0x%x\n", rev);
1068 struct device *dev = &client->dev;
1071 if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
1073 return -ENODEV;
1076 lt9611 = devm_drm_bridge_alloc(dev, struct lt9611, bridge,
1081 lt9611->dev = dev;
1082 lt9611->client = client;
1083 lt9611->sleep = false;
1085 lt9611->regmap = devm_regmap_init_i2c(client, <9611_regmap_config);
1086 if (IS_ERR(lt9611->regmap)) {
1087 dev_err(lt9611->dev, "regmap i2c init failed\n");
1088 return PTR_ERR(lt9611->regmap);
1119 ret = devm_request_threaded_irq(dev, client->irq, NULL,
1130 regmap_update_bits(lt9611->regmap, 0x843d, LT9611_INFOFRAME_AUDIO, 0);
1132 lt9611->bridge.of_node = client->dev.of_node;
1133 lt9611->bridge.ops = DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID |
1136 lt9611->bridge.type = DRM_MODE_CONNECTOR_HDMIA;
1137 lt9611->bridge.vendor = "Lontium";
1138 lt9611->bridge.product = "LT9611";
1139 lt9611->bridge.hdmi_audio_dev = dev;
1140 lt9611->bridge.hdmi_audio_max_i2s_playback_channels = 8;
1141 lt9611->bridge.hdmi_audio_dai_port = 2;
1143 drm_bridge_add(<9611->bridge);
1146 lt9611->dsi0 = lt9611_attach_dsi(lt9611, lt9611->dsi0_node);
1147 if (IS_ERR(lt9611->dsi0)) {
1148 ret = PTR_ERR(lt9611->dsi0);
1153 if (lt9611->dsi1_node) {
1154 lt9611->dsi1 = lt9611_attach_dsi(lt9611, lt9611->dsi1_node);
1155 if (IS_ERR(lt9611->dsi1)) {
1156 ret = PTR_ERR(lt9611->dsi1);
1166 drm_bridge_remove(<9611->bridge);
1169 regulator_bulk_disable(ARRAY_SIZE(lt9611->supplies), lt9611->supplies);
1172 of_node_put(lt9611->dsi1_node);
1173 of_node_put(lt9611->dsi0_node);
1182 disable_irq(client->irq);
1183 drm_bridge_remove(<9611->bridge);
1185 regulator_bulk_disable(ARRAY_SIZE(lt9611->supplies), lt9611->supplies);
1187 of_node_put(lt9611->dsi1_node);
1188 of_node_put(lt9611->dsi0_node);
1214 MODULE_DESCRIPTION("Lontium LT9611 DSI/HDMI bridge driver");