forked from ~ljy/RK356X_SDK_RELEASE

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2023-12-06 08f87f769b595151be1afeff53e144f543faa614 
 kernel/drivers/gpu/drm/bridge/sii902x.c
....@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  * Copyright (C) 2018 Renesas Electronics
34  *
....@@ -8,18 +9,7 @@
89  *		      Boris Brezillon <boris.brezillon@free-electrons.com>
910  *		      Wu, Songjun <Songjun.Wu@atmel.com>
1011  *
11
- *
1212  * Copyright (C) 2010-2011 Freescale Semiconductor, Inc. All Rights Reserved.
13
- *
14
- * This program is free software; you can redistribute it and/or modify
15
- * it under the terms of the GNU General Public License as published by
16
- * the Free Software Foundation; either version 2 of the License, or
17
- * (at your option) any later version.
18
- *
19
- * This program is distributed in the hope that it will be useful,
20
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
21
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
22
- * GNU General Public License for more details.
2313  */
2414 
2515 #include <linux/gpio/consumer.h>
....@@ -27,13 +17,16 @@
2717 #include <linux/i2c.h>
2818 #include <linux/module.h>
2919 #include <linux/regmap.h>
20
+#include <linux/regulator/consumer.h>
3021 #include <linux/clk.h>
3122 
32
-#include <drm/drmP.h>
3323 #include <drm/drm_atomic_helper.h>
34
-#include <drm/drm_crtc_helper.h>
24
+#include <drm/drm_bridge.h>
25
+#include <drm/drm_drv.h>
3526 #include <drm/drm_edid.h>
3627 #include <drm/drm_modes.h>
28
+#include <drm/drm_print.h>
29
+#include <drm/drm_probe_helper.h>
3730 
3831 #include <sound/hdmi-codec.h>
3932 #include <video/videomode.h>
....@@ -185,6 +178,7 @@
185178 	struct gpio_desc *reset_gpio;
186179 	struct gpio_desc *enable_gpio;
187180 	struct i2c_mux_core *i2cmux;
181
+	struct regulator_bulk_data supplies[2];
188182 	/*
189183 	 * Mutex protects audio and video functions from interfering
190184 	 * each other, by keeping their i2c command sequences atomic.
....@@ -298,38 +292,42 @@
298292 	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1390,
299293 		   1430, 1650, 0, 720, 725, 730, 750, 0,
300294 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
301
-	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
295
+	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
302296 	/* 16 - 1920x1080@60Hz 16:9 */
303297 	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
304298 		   2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
305299 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
306
-	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
300
+	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
307301 	/* 5 - 1920x1080i@60Hz 16:9 */
308302 	{ DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
309303 		   2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
310304 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
311305 		   DRM_MODE_FLAG_INTERLACE),
312
-	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
313
-	/* 62 - 1280x720@30Hz 16:9 */
314
-	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3040,
315
-		   3080, 3300, 0, 720, 725, 730, 750, 0,
306
+	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
307
+	/* 31 - 1920x1080@50Hz 16:9 */
308
+	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
309
+		   2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
316310 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
317
-	  .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
311
+	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
318312 	/* 19 - 1280x720@50Hz 16:9 */
319313 	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1720,
320314 		   1760, 1980, 0, 720, 725, 730, 750, 0,
321315 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
322
-	  .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
316
+	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
317
+	/* 0x10 - 1024x768@60Hz */
318
+	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
319
+		   1184, 1344, 0,  768, 771, 777, 806, 0,
320
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
323321 	/* 17 - 720x576@50Hz 4:3 */
324322 	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
325323 		   796, 864, 0, 576, 581, 586, 625, 0,
326324 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
327
-	  .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
325
+	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
328326 	/* 2 - 720x480@60Hz 4:3 */
329327 	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 27000, 720, 736,
330328 		   798, 858, 0, 480, 489, 495, 525, 0,
331329 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
332
-	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
330
+	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
333331 };
334332 
335333 static int sii902x_get_modes(struct drm_connector *connector)
....@@ -428,13 +426,42 @@
428426 	mutex_unlock(&sii902x->mutex);
429427 }
430428 
429
+static bool sii902x_check_embedded_format(uint32_t bus_format)
430
+{
431
+	switch (bus_format) {
432
+	case MEDIA_BUS_FMT_YUYV8_2X8:
433
+	case MEDIA_BUS_FMT_YVYU8_2X8:
434
+	case MEDIA_BUS_FMT_UYVY8_2X8:
435
+	case MEDIA_BUS_FMT_VYUY8_2X8:
436
+	case MEDIA_BUS_FMT_YUYV8_1X16:
437
+	case MEDIA_BUS_FMT_YVYU8_1X16:
438
+	case MEDIA_BUS_FMT_UYVY8_1X16:
439
+	case MEDIA_BUS_FMT_VYUY8_1X16:
440
+		return true;
441
+	default:
442
+		return false;
443
+	}
444
+}
445
+
431446 static void sii902x_set_embedded_sync(struct sii902x *sii902x)
432447 {
433448 	unsigned char data[8];
434449 	struct videomode vm;
435450 
436
-	if (sii902x->bus_format == MEDIA_BUS_FMT_RGB888_1X24)
451
+	if (!sii902x_check_embedded_format(sii902x->bus_format))
437452 		return;
453
+
454
+	switch (sii902x->bus_format) {
455
+	case MEDIA_BUS_FMT_YUYV8_2X8:
456
+	case MEDIA_BUS_FMT_YVYU8_2X8:
457
+	case MEDIA_BUS_FMT_UYVY8_2X8:
458
+	case MEDIA_BUS_FMT_VYUY8_2X8:
459
+		sii902x_update_bits_unlocked(sii902x->i2c, SII902X_TPI_SYNC_GEN_CTRL,
460
+					     0x20, 0x20);
461
+		break;
462
+	default:
463
+		break;
464
+	}
438465 
439466 	sii902x_update_bits_unlocked(sii902x->i2c, SII902X_TPI_SYNC_GEN_CTRL,
440467 				     0x80,  0x00);
....@@ -446,8 +473,13 @@
446473 	drm_display_mode_to_videomode(&sii902x->mode, &vm);
447474 	data[0] = vm.hfront_porch & 0xff;
448475 	data[1] = (vm.hfront_porch >> 8) & 0x03;
449
-	data[2] = 0;
450
-	data[3] = 0;
476
+	if (sii902x->mode.flags & DRM_MODE_FLAG_INTERLACE) {
477
+		data[2] = (sii902x->mode.vtotal >> 1) & 0xff;
478
+		data[3] = ((sii902x->mode.vtotal >> 1) >> 8) & 0x1f;
479
+	} else {
480
+		data[2] = 0;
481
+		data[3] = 0;
482
+	}
451483 	data[4] = vm.hsync_len & 0xff;
452484 	data[5] = (vm.hsync_len >> 8) & 0x03;
453485 	data[6] = vm.vfront_porch;
....@@ -475,6 +507,10 @@
475507 	case MEDIA_BUS_FMT_YVYU8_1X16:
476508 	case MEDIA_BUS_FMT_UYVY8_1X16:
477509 	case MEDIA_BUS_FMT_VYUY8_1X16:
510
+	case MEDIA_BUS_FMT_YUYV8_2X8:
511
+	case MEDIA_BUS_FMT_YVYU8_2X8:
512
+	case MEDIA_BUS_FMT_UYVY8_2X8:
513
+	case MEDIA_BUS_FMT_VYUY8_2X8:
478514 		val = SII902X_TPI_AVI_INPUT_COLORSPACE_YUV422;
479515 		break;
480516 	case MEDIA_BUS_FMT_YUV8_1X24:
....@@ -496,8 +532,8 @@
496532 }
497533 
498534 static void sii902x_bridge_mode_set(struct drm_bridge *bridge,
499
-				    struct drm_display_mode *mode,
500
-				    struct drm_display_mode *adj)
535
+				    const struct drm_display_mode *mode,
536
+				    const struct drm_display_mode *adj)
501537 {
502538 	struct sii902x *sii902x = bridge_to_sii902x(bridge);
503539 	struct regmap *regmap = sii902x->regmap;
....@@ -523,6 +559,10 @@
523559 	case MEDIA_BUS_FMT_YVYU8_1X16:
524560 	case MEDIA_BUS_FMT_UYVY8_1X16:
525561 	case MEDIA_BUS_FMT_VYUY8_1X16:
562
+	case MEDIA_BUS_FMT_YUYV8_2X8:
563
+	case MEDIA_BUS_FMT_YVYU8_2X8:
564
+	case MEDIA_BUS_FMT_UYVY8_2X8:
565
+	case MEDIA_BUS_FMT_VYUY8_2X8:
526566 		buf[8] |= SII902X_TPI_AVI_PIXEL_REP_RISING_EDGE;
527567 		break;
528568 	default:
....@@ -535,6 +575,10 @@
535575 	case MEDIA_BUS_FMT_YVYU8_1X16:
536576 	case MEDIA_BUS_FMT_UYVY8_1X16:
537577 	case MEDIA_BUS_FMT_VYUY8_1X16:
578
+	case MEDIA_BUS_FMT_YUYV8_2X8:
579
+	case MEDIA_BUS_FMT_YVYU8_2X8:
580
+	case MEDIA_BUS_FMT_UYVY8_2X8:
581
+	case MEDIA_BUS_FMT_VYUY8_2X8:
538582 		buf[9] |= SII902X_TPI_AVI_INPUT_COLORSPACE_YUV422;
539583 		break;
540584 	case MEDIA_BUS_FMT_YUV8_1X24:
....@@ -553,7 +597,8 @@
553597 	if (ret)
554598 		goto out;
555599 
556
-	ret = drm_hdmi_avi_infoframe_from_display_mode(&frame, adj, false);
600
+	ret = drm_hdmi_avi_infoframe_from_display_mode(&frame,
601
+						       &sii902x->connector, adj);
557602 	if (ret < 0) {
558603 		DRM_ERROR("couldn't fill AVI infoframe\n");
559604 		goto out;
....@@ -569,17 +614,22 @@
569614 	regmap_bulk_write(regmap, SII902X_TPI_AVI_INFOFRAME,
570615 			  buf + HDMI_INFOFRAME_HEADER_SIZE - 1,
571616 			  HDMI_AVI_INFOFRAME_SIZE + 1);
572
-
573617 	sii902x_set_format(sii902x);
574618 out:
575619 	mutex_unlock(&sii902x->mutex);
576620 }
577621 
578
-static int sii902x_bridge_attach(struct drm_bridge *bridge)
622
+static int sii902x_bridge_attach(struct drm_bridge *bridge,
623
+				 enum drm_bridge_attach_flags flags)
579624 {
580625 	struct sii902x *sii902x = bridge_to_sii902x(bridge);
581626 	struct drm_device *drm = bridge->dev;
582627 	int ret;
628
+
629
+	if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR) {
630
+		DRM_ERROR("Fix bridge driver to make connector optional!");
631
+		return -EINVAL;
632
+	}
583633 
584634 	sii902x->connector.interlace_allowed = true;
585635 	drm_connector_helper_add(&sii902x->connector,
....@@ -843,8 +893,8 @@
843893 	clk_disable_unprepare(sii902x->audio.mclk);
844894 }
845895 
846
-static int sii902x_audio_digital_mute(struct device *dev,
847
-				      void *data, bool enable)
896
+static int sii902x_audio_mute(struct device *dev, void *data,
897
+			      bool enable, int direction)
848898 {
849899 	struct sii902x *sii902x = dev_get_drvdata(dev);
850900 
....@@ -895,9 +945,10 @@
895945 static const struct hdmi_codec_ops sii902x_audio_codec_ops = {
896946 	.hw_params = sii902x_audio_hw_params,
897947 	.audio_shutdown = sii902x_audio_shutdown,
898
-	.digital_mute = sii902x_audio_digital_mute,
948
+	.mute_stream = sii902x_audio_mute,
899949 	.get_eld = sii902x_audio_get_eld,
900950 	.get_dai_id = sii902x_audio_get_dai_id,
951
+	.no_capture_mute = 1,
901952 };
902953 
903954 static int sii902x_audio_codec_init(struct sii902x *sii902x,
....@@ -1118,13 +1169,82 @@
11181169 	return 0;
11191170 }
11201171 
1172
+static const struct drm_bridge_timings default_sii902x_timings = {
1173
+	.input_bus_flags = DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE
1174
+		 | DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE
1175
+		 | DRM_BUS_FLAG_DE_HIGH,
1176
+};
1177
+
1178
+static int sii902x_init(struct sii902x *sii902x)
1179
+{
1180
+	struct device *dev = &sii902x->i2c->dev;
1181
+	unsigned int status = 0;
1182
+	u8 chipid[4];
1183
+	int ret;
1184
+
1185
+	sii902x_reset(sii902x);
1186
+
1187
+	ret = regmap_write(sii902x->regmap, SII902X_REG_TPI_RQB, 0x0);
1188
+	if (ret) {
1189
+		dev_err(dev, "enable TPI mode failed %d\n", ret);
1190
+		return ret;
1191
+	}
1192
+
1193
+	ret = regmap_bulk_read(sii902x->regmap, SII902X_REG_CHIPID(0),
1194
+			       &chipid, 4);
1195
+	if (ret) {
1196
+		dev_err(dev, "regmap_read failed %d\n", ret);
1197
+		return ret;
1198
+	}
1199
+
1200
+	if (chipid[0] != 0xb0) {
1201
+		dev_err(dev, "Invalid chipid: %02x (expecting 0xb0)\n",
1202
+			chipid[0]);
1203
+		return -EINVAL;
1204
+	}
1205
+
1206
+	/* Clear all pending interrupts */
1207
+	regmap_read(sii902x->regmap, SII902X_INT_STATUS, &status);
1208
+	regmap_write(sii902x->regmap, SII902X_INT_STATUS, status);
1209
+
1210
+	if (sii902x->i2c->irq > 0) {
1211
+		regmap_write(sii902x->regmap, SII902X_INT_ENABLE,
1212
+			     SII902X_HOTPLUG_EVENT);
1213
+
1214
+		ret = devm_request_threaded_irq(dev, sii902x->i2c->irq, NULL,
1215
+						sii902x_interrupt,
1216
+						IRQF_TRIGGER_FALLING |
1217
+						IRQF_ONESHOT, dev_name(dev),
1218
+						sii902x);
1219
+		if (ret)
1220
+			return ret;
1221
+	}
1222
+
1223
+	sii902x->bridge.funcs = &sii902x_bridge_funcs;
1224
+	sii902x->bridge.of_node = dev->of_node;
1225
+	sii902x->bridge.timings = &default_sii902x_timings;
1226
+	drm_bridge_add(&sii902x->bridge);
1227
+
1228
+	sii902x_audio_codec_init(sii902x, dev);
1229
+
1230
+	i2c_set_clientdata(sii902x->i2c, sii902x);
1231
+
1232
+	sii902x->i2cmux = i2c_mux_alloc(sii902x->i2c->adapter, dev,
1233
+					1, 0, I2C_MUX_GATE,
1234
+					sii902x_i2c_bypass_select,
1235
+					sii902x_i2c_bypass_deselect);
1236
+	if (!sii902x->i2cmux)
1237
+		return -ENOMEM;
1238
+
1239
+	sii902x->i2cmux->priv = sii902x;
1240
+	return i2c_mux_add_adapter(sii902x->i2cmux, 0, 0, 0);
1241
+}
1242
+
11211243 static int sii902x_probe(struct i2c_client *client,
11221244 			 const struct i2c_device_id *id)
11231245 {
11241246 	struct device *dev = &client->dev;
1125
-	unsigned int status = 0;
11261247 	struct sii902x *sii902x;
1127
-	u8 chipid[4];
11281248 	int ret;
11291249 	u32 val;
11301250 
....@@ -1185,59 +1305,28 @@
11851305 
11861306 	mutex_init(&sii902x->mutex);
11871307 
1188
-	sii902x_reset(sii902x);
1189
-
1190
-	ret = regmap_write(sii902x->regmap, SII902X_REG_TPI_RQB, 0x0);
1191
-	if (ret)
1308
+	sii902x->supplies[0].supply = "iovcc";
1309
+	sii902x->supplies[1].supply = "cvcc12";
1310
+	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(sii902x->supplies),
1311
+				      sii902x->supplies);
1312
+	if (ret < 0)
11921313 		return ret;
11931314 
1194
-	ret = regmap_bulk_read(sii902x->regmap, SII902X_REG_CHIPID(0),
1195
-			       &chipid, 4);
1196
-	if (ret) {
1197
-		dev_err(dev, "regmap_read failed %d\n", ret);
1315
+	ret = regulator_bulk_enable(ARRAY_SIZE(sii902x->supplies),
1316
+				    sii902x->supplies);
1317
+	if (ret < 0) {
1318
+		dev_err_probe(dev, ret, "Failed to enable supplies");
11981319 		return ret;
11991320 	}
12001321 
1201
-	if (chipid[0] != 0xb0) {
1202
-		dev_err(dev, "Invalid chipid: %02x (expecting 0xb0)\n",
1203
-			chipid[0]);
1204
-		return -EINVAL;
1322
+	ret = sii902x_init(sii902x);
1323
+	if (ret < 0) {
1324
+		dev_err(dev, "Failed to init sii902x %d\n", ret);
1325
+		regulator_bulk_disable(ARRAY_SIZE(sii902x->supplies),
1326
+				       sii902x->supplies);
12051327 	}
12061328 
1207
-	/* Clear all pending interrupts */
1208
-	regmap_read(sii902x->regmap, SII902X_INT_STATUS, &status);
1209
-	regmap_write(sii902x->regmap, SII902X_INT_STATUS, status);
1210
-
1211
-	if (client->irq > 0) {
1212
-		regmap_write(sii902x->regmap, SII902X_INT_ENABLE,
1213
-			     SII902X_HOTPLUG_EVENT);
1214
-
1215
-		ret = devm_request_threaded_irq(dev, client->irq, NULL,
1216
-						sii902x_interrupt,
1217
-						IRQF_TRIGGER_FALLING |
1218
-						IRQF_ONESHOT, dev_name(dev),
1219
-						sii902x);
1220
-		if (ret)
1221
-			return ret;
1222
-	}
1223
-
1224
-	sii902x->bridge.funcs = &sii902x_bridge_funcs;
1225
-	sii902x->bridge.of_node = dev->of_node;
1226
-	drm_bridge_add(&sii902x->bridge);
1227
-
1228
-	sii902x_audio_codec_init(sii902x, dev);
1229
-
1230
-	i2c_set_clientdata(client, sii902x);
1231
-
1232
-	sii902x->i2cmux = i2c_mux_alloc(client->adapter, dev,
1233
-					1, 0, I2C_MUX_GATE,
1234
-					sii902x_i2c_bypass_select,
1235
-					sii902x_i2c_bypass_deselect);
1236
-	if (!sii902x->i2cmux)
1237
-		return -ENOMEM;
1238
-
1239
-	sii902x->i2cmux->priv = sii902x;
1240
-	return i2c_mux_add_adapter(sii902x->i2cmux, 0, 0, 0);
1329
+	return ret;
12411330 }
12421331 
12431332 static int sii902x_remove(struct i2c_client *client)
....@@ -1247,6 +1336,8 @@
12471336 
12481337 	i2c_mux_del_adapters(sii902x->i2cmux);
12491338 	drm_bridge_remove(&sii902x->bridge);
1339
+	regulator_bulk_disable(ARRAY_SIZE(sii902x->supplies),
1340
+			       sii902x->supplies);
12501341 
12511342 	return 0;
12521343 }