~hc/RK356X_SDK_RELEASE.git

..	..	@@ -1,35 +1,34 @@
	1	+// SPDX-License-Identifier: GPL-2.0-or-later
1	2	/*
2	3	* Analogix DP (Display Port) core interface driver.
3	4	*
4	5	* Copyright (C) 2012 Samsung Electronics Co., Ltd.
5	6	* Author: Jingoo Han <jg1.han@samsung.com>
6		-*
7		-* This program is free software; you can redistribute it and/or modify it
8		-* under the terms of the GNU General Public License as published by the
9		-* Free Software Foundation; either version 2 of the License, or (at your
10		-* option) any later version.
11	7	*/
12	8
13		-#include <linux/module.h>
14		-#include <linux/platform_device.h>
15		-#include <linux/err.h>
16	9	#include <linux/clk.h>
	10	+#include <linux/component.h>
	11	+#include <linux/extcon-provider.h>
	12	+#include <linux/err.h>
	13	+#include <linux/gpio/consumer.h>
	14	+#include <linux/interrupt.h>
17	15	#include <linux/io.h>
18	16	#include <linux/iopoll.h>
19		-#include <linux/interrupt.h>
	17	+#include <linux/irq.h>
	18	+#include <linux/module.h>
20	19	#include <linux/of.h>
21		-#include <linux/of_gpio.h>
22		-#include <linux/gpio/consumer.h>
23		-#include <linux/component.h>
24	20	#include <linux/phy/phy.h>
25		-
26		-#include <drm/drmP.h>
27		-#include <drm/drm_atomic_helper.h>
28		-#include <drm/drm_crtc.h>
29		-#include <drm/drm_crtc_helper.h>
30		-#include <drm/drm_panel.h>
	21	+#include <linux/platform_device.h>
31	22
32	23	#include <drm/bridge/analogix_dp.h>
	24	+#include <drm/drm_atomic.h>
	25	+#include <drm/drm_atomic_helper.h>
	26	+#include <drm/drm_bridge.h>
	27	+#include <drm/drm_crtc.h>
	28	+#include <drm/drm_device.h>
	29	+#include <drm/drm_panel.h>
	30	+#include <drm/drm_print.h>
	31	+#include <drm/drm_probe_helper.h>
33	32
34	33	#include "analogix_dp_core.h"
35	34	#include "analogix_dp_reg.h"
..	..	@@ -37,6 +36,16 @@
37	36	#define to_dp(nm) container_of(nm, struct analogix_dp_device, nm)
38	37
39	38	static const bool verify_fast_training;
	39	+
	40	+#ifdef CONFIG_NO_GKI
	41	+#undef EXTCON_DISP_DP
	42	+#define EXTCON_DISP_DP EXTCON_DISP_EDP
	43	+#endif
	44	+
	45	+static const unsigned int analogix_dp_cable[] = {
	46	+ EXTCON_DISP_DP,
	47	+ EXTCON_NONE,
	48	+};
40	49
41	50	struct bridge_init {
42	51	struct i2c_client *client;
..	..	@@ -47,7 +56,15 @@
47	56	const struct drm_display_mode *mode,
48	57	unsigned int rate, unsigned int lanes)
49	58	{
	59	+ const struct drm_display_info *info;
50	60	u32 max_bw, req_bw, bpp = 24;
	61	+
	62	+ if (dp->plat_data->skip_connector)
	63	+ return true;
	64	+
	65	+ info = &dp->connector.display_info;
	66	+ if (info->bpc)
	67	+ bpp = 3 * info->bpc;
51	68
52	69	req_bw = mode->clock * bpp / 8;
53	70	max_bw = lanes * rate;
..	..	@@ -81,143 +98,75 @@
81	98	return 0;
82	99	}
83	100
84		-static int analogix_dp_prepare_panel(struct analogix_dp_device *dp,
85		- bool prepare)
	101	+static int analogix_dp_panel_prepare(struct analogix_dp_device *dp)
86	102	{
87		- int ret = 0;
	103	+ int ret;
88	104
89	105	mutex_lock(&dp->panel_lock);
90	106
91		- if (prepare == dp->panel_is_prepared)
	107	+ if (dp->panel_is_prepared)
92	108	goto out;
93	109
94		- if (prepare)
95		- ret = drm_panel_prepare(dp->plat_data->panel);
96		- else
97		- ret = drm_panel_unprepare(dp->plat_data->panel);
	110	+ ret = drm_panel_prepare(dp->plat_data->panel);
98	111	if (ret)
99	112	goto out;
100	113
101		- dp->panel_is_prepared = prepare;
	114	+ dp->panel_is_prepared = true;
	115	+
102	116	out:
103	117	mutex_unlock(&dp->panel_lock);
104		- return ret;
	118	+ return 0;
	119	+}
	120	+
	121	+static int analogix_dp_panel_unprepare(struct analogix_dp_device *dp)
	122	+{
	123	+ int ret;
	124	+
	125	+ mutex_lock(&dp->panel_lock);
	126	+
	127	+ if (!dp->panel_is_prepared)
	128	+ goto out;
	129	+
	130	+ ret = drm_panel_unprepare(dp->plat_data->panel);
	131	+ if (ret)
	132	+ goto out;
	133	+
	134	+ dp->panel_is_prepared = false;
	135	+
	136	+out:
	137	+ mutex_unlock(&dp->panel_lock);
	138	+ return 0;
105	139	}
106	140
107	141	static int analogix_dp_detect_hpd(struct analogix_dp_device *dp)
108	142	{
109		- int timeout_loop = 0;
110		-
111		- while (timeout_loop < DP_TIMEOUT_LOOP_COUNT) {
112		- if (analogix_dp_get_plug_in_status(dp) == 0)
113		- return 0;
114		-
115		- timeout_loop++;
116		- usleep_range(1000, 1100);
117		- }
118		-
119		- /*
120		- * Some edp screen do not have hpd signal, so we can't just
121		- * return failed when hpd plug in detect failed, DT property
122		- * "force-hpd" would indicate whether driver need this.
123		- */
124		- if (!dp->force_hpd)
125		- return -ETIMEDOUT;
126		-
127		- /*
128		- * The eDP TRM indicate that if HPD_STATUS(RO) is 0, AUX CH
129		- * will not work, so we need to give a force hpd action to
130		- * set HPD_STATUS manually.
131		- */
132		- dev_dbg(dp->dev, "failed to get hpd plug status, try to force hpd\n");
133		-
134		- analogix_dp_force_hpd(dp);
	143	+ if (dp->force_hpd)
	144	+ analogix_dp_force_hpd(dp);
135	145
136	146	if (analogix_dp_get_plug_in_status(dp) != 0) {
137	147	dev_err(dp->dev, "failed to get hpd plug in status\n");
138	148	return -EINVAL;
139	149	}
140	150
141		- dev_dbg(dp->dev, "success to get plug in status after force hpd\n");
142		-
143	151	return 0;
144	152	}
145	153
146		-int analogix_dp_psr_enabled(struct analogix_dp_device *dp)
147		-{
148		-
149		- return dp->psr_enable;
150		-}
151		-EXPORT_SYMBOL_GPL(analogix_dp_psr_enabled);
152		-
153		-int analogix_dp_enable_psr(struct analogix_dp_device *dp)
154		-{
155		- struct edp_vsc_psr psr_vsc;
156		-
157		- if (!dp->psr_enable)
158		- return 0;
159		-
160		- /* Prepare VSC packet as per EDP 1.4 spec, Table 6.9 */
161		- memset(&psr_vsc, 0, sizeof(psr_vsc));
162		- psr_vsc.sdp_header.HB0 = 0;
163		- psr_vsc.sdp_header.HB1 = 0x7;
164		- psr_vsc.sdp_header.HB2 = 0x2;
165		- psr_vsc.sdp_header.HB3 = 0x8;
166		-
167		- psr_vsc.DB0 = 0;
168		- psr_vsc.DB1 = EDP_VSC_PSR_STATE_ACTIVE \| EDP_VSC_PSR_CRC_VALUES_VALID;
169		-
170		- return analogix_dp_send_psr_spd(dp, &psr_vsc, true);
171		-}
172		-EXPORT_SYMBOL_GPL(analogix_dp_enable_psr);
173		-
174		-int analogix_dp_disable_psr(struct analogix_dp_device *dp)
175		-{
176		- struct edp_vsc_psr psr_vsc;
177		- int ret;
178		-
179		- if (!dp->psr_enable)
180		- return 0;
181		-
182		- /* Prepare VSC packet as per EDP 1.4 spec, Table 6.9 */
183		- memset(&psr_vsc, 0, sizeof(psr_vsc));
184		- psr_vsc.sdp_header.HB0 = 0;
185		- psr_vsc.sdp_header.HB1 = 0x7;
186		- psr_vsc.sdp_header.HB2 = 0x2;
187		- psr_vsc.sdp_header.HB3 = 0x8;
188		-
189		- psr_vsc.DB0 = 0;
190		- psr_vsc.DB1 = 0;
191		-
192		- ret = drm_dp_dpcd_writeb(&dp->aux, DP_SET_POWER, DP_SET_POWER_D0);
193		- if (ret != 1) {
194		- dev_err(dp->dev, "Failed to set DP Power0 %d\n", ret);
195		- return ret;
196		- }
197		-
198		- return analogix_dp_send_psr_spd(dp, &psr_vsc, false);
199		-}
200		-EXPORT_SYMBOL_GPL(analogix_dp_disable_psr);
201		-
202		-static int analogix_dp_detect_sink_psr(struct analogix_dp_device *dp)
	154	+static bool analogix_dp_detect_sink_psr(struct analogix_dp_device *dp)
203	155	{
204	156	unsigned char psr_version;
205	157	int ret;
206	158
207		- if (!of_property_read_bool(dp->dev->of_node, "support-psr"))
	159	+ if (!device_property_read_bool(dp->dev, "support-psr"))
208	160	return 0;
209	161
210	162	ret = drm_dp_dpcd_readb(&dp->aux, DP_PSR_SUPPORT, &psr_version);
211	163	if (ret != 1) {
212	164	dev_err(dp->dev, "failed to get PSR version, disable it\n");
213		- return ret;
	165	+ return false;
214	166	}
215	167
216	168	dev_dbg(dp->dev, "Panel PSR version : %x\n", psr_version);
217		-
218		- dp->psr_enable = (psr_version & DP_PSR_IS_SUPPORTED) ? true : false;
219		-
220		- return 0;
	169	+ return psr_version & DP_PSR_IS_SUPPORTED;
221	170	}
222	171
223	172	static int analogix_dp_enable_sink_psr(struct analogix_dp_device *dp)
..	..	@@ -240,7 +189,7 @@
240	189	}
241	190
242	191	/* Main-Link transmitter remains active during PSR active states */
243		- psr_en = DP_PSR_MAIN_LINK_ACTIVE \| DP_PSR_CRC_VERIFICATION;
	192	+ psr_en = DP_PSR_CRC_VERIFICATION;
244	193	ret = drm_dp_dpcd_writeb(&dp->aux, DP_PSR_EN_CFG, psr_en);
245	194	if (ret != 1) {
246	195	dev_err(dp->dev, "failed to set panel psr\n");
..	..	@@ -248,8 +197,7 @@
248	197	}
249	198
250	199	/* Enable psr function */
251		- psr_en = DP_PSR_ENABLE \| DP_PSR_MAIN_LINK_ACTIVE \|
252		- DP_PSR_CRC_VERIFICATION;
	200	+ psr_en = DP_PSR_ENABLE \| DP_PSR_CRC_VERIFICATION;
253	201	ret = drm_dp_dpcd_writeb(&dp->aux, DP_PSR_EN_CFG, psr_en);
254	202	if (ret != 1) {
255	203	dev_err(dp->dev, "failed to set panel psr\n");
..	..	@@ -258,10 +206,11 @@
258	206
259	207	analogix_dp_enable_psr_crc(dp);
260	208
	209	+ dp->psr_supported = true;
	210	+
261	211	return 0;
262	212	end:
263	213	dev_err(dp->dev, "enable psr fail, force to disable psr\n");
264		- dp->psr_enable = false;
265	214
266	215	return ret;
267	216	}
..	..	@@ -351,6 +300,23 @@
351	300	return ret < 0 ? ret : 0;
352	301	}
353	302
	303	+static bool analogix_dp_get_vrr_capable(struct analogix_dp_device *dp)
	304	+{
	305	+ struct drm_connector *connector = &dp->connector;
	306	+ struct drm_display_info *info = &connector->display_info;
	307	+
	308	+ if (!info->monitor_range.max_vfreq)
	309	+ return false;
	310	+ if (!info->monitor_range.min_vfreq)
	311	+ return false;
	312	+ if (info->monitor_range.max_vfreq < info->monitor_range.min_vfreq)
	313	+ return false;
	314	+ if (!drm_dp_sink_can_do_video_without_timing_msa(dp->dpcd))
	315	+ return false;
	316	+
	317	+ return true;
	318	+}
	319	+
354	320	static int analogix_dp_link_start(struct analogix_dp_device *dp)
355	321	{
356	322	u8 buf[4];
..	..	@@ -377,6 +343,8 @@
377	343
378	344	/* Spread AMP if required, enable 8b/10b coding */
379	345	buf[0] = analogix_dp_ssc_supported(dp) ? DP_SPREAD_AMP_0_5 : 0;
	346	+ if (analogix_dp_get_vrr_capable(dp))
	347	+ buf[0] \|= DP_MSA_TIMING_PAR_IGNORE_EN;
380	348	buf[1] = DP_SET_ANSI_8B10B;
381	349	retval = drm_dp_dpcd_write(&dp->aux, DP_DOWNSPREAD_CTRL, buf, 2);
382	350	if (retval < 0)
..	..	@@ -529,16 +497,11 @@
529	497	u8 link_status[2], adjust_request[2];
530	498	u8 training_pattern = TRAINING_PTN2;
531	499
532		- usleep_range(100, 101);
	500	+ drm_dp_link_train_clock_recovery_delay(dp->dpcd);
533	501
534	502	lane_count = dp->link_train.lane_count;
535	503
536	504	retval = drm_dp_dpcd_read(&dp->aux, DP_LANE0_1_STATUS, link_status, 2);
537		- if (retval < 0)
538		- return retval;
539		-
540		- retval = drm_dp_dpcd_read(&dp->aux, DP_ADJUST_REQUEST_LANE0_1,
541		- adjust_request, 2);
542	505	if (retval < 0)
543	506	return retval;
544	507
..	..	@@ -556,9 +519,16 @@
556	519	if (retval < 0)
557	520	return retval;
558	521
559		- dev_info(dp->dev, "Link Training Clock Recovery success\n");
	522	+ dev_dbg(dp->dev, "Link Training Clock Recovery success\n");
560	523	dp->link_train.lt_state = EQUALIZER_TRAINING;
	524	+
	525	+ return 0;
561	526	} else {
	527	+ retval = drm_dp_dpcd_read(&dp->aux, DP_ADJUST_REQUEST_LANE0_1,
	528	+ adjust_request, 2);
	529	+ if (retval < 0)
	530	+ return retval;
	531	+
562	532	for (lane = 0; lane < lane_count; lane++) {
563	533	training_lane = analogix_dp_get_lane_link_training(
564	534	dp, lane);
..	..	@@ -583,16 +553,15 @@
583	553	return -EIO;
584	554	}
585	555	}
586		-
587		- analogix_dp_get_adjust_training_lane(dp, adjust_request);
588		- analogix_dp_set_lane_link_training(dp);
589		-
590		- retval = drm_dp_dpcd_write(&dp->aux, DP_TRAINING_LANE0_SET,
591		- dp->link_train.training_lane,
592		- lane_count);
593		- if (retval < 0)
594		- return retval;
595	556	}
	557	+
	558	+ analogix_dp_get_adjust_training_lane(dp, adjust_request);
	559	+ analogix_dp_set_lane_link_training(dp);
	560	+
	561	+ retval = drm_dp_dpcd_write(&dp->aux, DP_TRAINING_LANE0_SET,
	562	+ dp->link_train.training_lane, lane_count);
	563	+ if (retval < 0)
	564	+ return retval;
596	565
597	566	return 0;
598	567	}
..	..	@@ -603,7 +572,7 @@
603	572	u32 reg;
604	573	u8 link_align, link_status[2], adjust_request[2];
605	574
606		- usleep_range(400, 401);
	575	+ drm_dp_link_train_channel_eq_delay(dp->dpcd);
607	576
608	577	lane_count = dp->link_train.lane_count;
609	578
..	..	@@ -616,17 +585,10 @@
616	585	return -EIO;
617	586	}
618	587
619		- retval = drm_dp_dpcd_read(&dp->aux, DP_ADJUST_REQUEST_LANE0_1,
620		- adjust_request, 2);
621		- if (retval < 0)
622		- return retval;
623		-
624	588	retval = drm_dp_dpcd_readb(&dp->aux, DP_LANE_ALIGN_STATUS_UPDATED,
625	589	&link_align);
626	590	if (retval < 0)
627	591	return retval;
628		-
629		- analogix_dp_get_adjust_training_lane(dp, adjust_request);
630	592
631	593	if (!analogix_dp_channel_eq_ok(link_status, link_align, lane_count)) {
632	594	/* traing pattern Set to Normal */
..	..	@@ -634,7 +596,7 @@
634	596	if (retval < 0)
635	597	return retval;
636	598
637		- dev_info(dp->dev, "Link Training success!\n");
	599	+ dev_dbg(dp->dev, "Link Training success!\n");
638	600	analogix_dp_get_link_bandwidth(dp, &reg);
639	601	dp->link_train.link_rate = reg;
640	602	dev_dbg(dp->dev, "final bandwidth = %.2x\n",
..	..	@@ -659,6 +621,12 @@
659	621	return -EIO;
660	622	}
661	623
	624	+ retval = drm_dp_dpcd_read(&dp->aux, DP_ADJUST_REQUEST_LANE0_1,
	625	+ adjust_request, 2);
	626	+ if (retval < 0)
	627	+ return retval;
	628	+
	629	+ analogix_dp_get_adjust_training_lane(dp, adjust_request);
662	630	analogix_dp_set_lane_link_training(dp);
663	631
664	632	retval = drm_dp_dpcd_write(&dp->aux, DP_TRAINING_LANE0_SET,
..	..	@@ -669,10 +637,11 @@
669	637	return 0;
670	638	}
671	639
672		-static void analogix_dp_get_max_rx_bandwidth(struct analogix_dp_device *dp,
673		- u8 *bandwidth)
	640	+static int analogix_dp_get_max_rx_bandwidth(struct analogix_dp_device *dp,
	641	+ u8 *bandwidth)
674	642	{
675	643	u8 data;
	644	+ int ret;
676	645
677	646	/*
678	647	* For DP rev.1.1, Maximum link rate of Main Link lanes
..	..	@@ -680,26 +649,38 @@
680	649	* For DP rev.1.2, Maximum link rate of Main Link lanes
681	650	* 0x06 = 1.62 Gbps, 0x0a = 2.7 Gbps, 0x14 = 5.4Gbps
682	651	*/
683		- drm_dp_dpcd_readb(&dp->aux, DP_MAX_LINK_RATE, &data);
	652	+ ret = drm_dp_dpcd_readb(&dp->aux, DP_MAX_LINK_RATE, &data);
	653	+ if (ret < 0)
	654	+ return ret;
	655	+
684	656	*bandwidth = data;
	657	+
	658	+ return 0;
685	659	}
686	660
687		-static void analogix_dp_get_max_rx_lane_count(struct analogix_dp_device *dp,
688		- u8 *lane_count)
	661	+static int analogix_dp_get_max_rx_lane_count(struct analogix_dp_device *dp,
	662	+ u8 *lane_count)
689	663	{
690	664	u8 data;
	665	+ int ret;
691	666
692	667	/*
693	668	* For DP rev.1.1, Maximum number of Main Link lanes
694	669	* 0x01 = 1 lane, 0x02 = 2 lanes, 0x04 = 4 lanes
695	670	*/
696		- drm_dp_dpcd_readb(&dp->aux, DP_MAX_LANE_COUNT, &data);
	671	+ ret = drm_dp_dpcd_readb(&dp->aux, DP_MAX_LANE_COUNT, &data);
	672	+ if (ret < 0)
	673	+ return ret;
	674	+
697	675	*lane_count = DPCD_MAX_LANE_COUNT(data);
	676	+
	677	+ return 0;
698	678	}
699	679
700	680	static int analogix_dp_full_link_train(struct analogix_dp_device *dp,
701	681	u32 max_lanes, u32 max_rate)
702	682	{
	683	+ struct video_info *video = &dp->video_info;
703	684	int retval = 0;
704	685	bool training_finished = false;
705	686	u8 dpcd;
..	..	@@ -714,28 +695,19 @@
714	695	analogix_dp_get_max_rx_bandwidth(dp, &dp->link_train.link_rate);
715	696	analogix_dp_get_max_rx_lane_count(dp, &dp->link_train.lane_count);
716	697
717		- if ((dp->link_train.link_rate != DP_LINK_BW_1_62) &&
718		- (dp->link_train.link_rate != DP_LINK_BW_2_7) &&
719		- (dp->link_train.link_rate != DP_LINK_BW_5_4)) {
720		- dev_err(dp->dev, "Rx Max Link Rate is abnormal :%x !\n",
721		- dp->link_train.link_rate);
722		- dp->link_train.link_rate = DP_LINK_BW_1_62;
723		- }
	698	+ /* Setup TX lane count & rate */
	699	+ dp->link_train.lane_count = min_t(u32, dp->link_train.lane_count, max_lanes);
	700	+ dp->link_train.link_rate = min_t(u32, dp->link_train.link_rate, max_rate);
724	701
725		- if (dp->link_train.lane_count == 0) {
726		- dev_err(dp->dev, "Rx Max Lane count is abnormal :%x !\n",
727		- dp->link_train.lane_count);
728		- dp->link_train.lane_count = (u8)LANE_COUNT1;
	702	+ if (!analogix_dp_bandwidth_ok(dp, &video->mode,
	703	+ drm_dp_bw_code_to_link_rate(dp->link_train.link_rate),
	704	+ dp->link_train.lane_count)) {
	705	+ dev_err(dp->dev, "bandwidth overflow\n");
	706	+ return -EINVAL;
729	707	}
730	708
731	709	drm_dp_dpcd_readb(&dp->aux, DP_MAX_DOWNSPREAD, &dpcd);
732	710	dp->link_train.ssc = !!(dpcd & DP_MAX_DOWNSPREAD_0_5);
733		-
734		- /* Setup TX lane count & rate */
735		- if (dp->link_train.lane_count > max_lanes)
736		- dp->link_train.lane_count = max_lanes;
737		- if (dp->link_train.link_rate > max_rate)
738		- dp->link_train.link_rate = max_rate;
739	711
740	712	/* All DP analog module power up */
741	713	analogix_dp_set_analog_power_down(dp, POWER_ALL, 0);
..	..	@@ -873,7 +845,7 @@
873	845	analogix_dp_set_video_cr_mn(dp, CALCULATED_M, 0, 0);
874	846
875	847	/* For video bist, Video timing must be generated by register */
876		- analogix_dp_set_video_timing_mode(dp, VIDEO_TIMING_FROM_CAPTURE);
	848	+ analogix_dp_set_video_timing_mode(dp, VIDEO_TIMING_FROM_REGISTER);
877	849
878	850	/* Disable video mute */
879	851	analogix_dp_enable_video_mute(dp, 0);
..	..	@@ -935,6 +907,156 @@
935	907	return ret < 0 ? ret : 0;
936	908	}
937	909
	910	+static u8 analogix_dp_autotest_phy_pattern(struct analogix_dp_device *dp)
	911	+{
	912	+ struct drm_dp_phy_test_params *data = &dp->compliance.phytest;
	913	+
	914	+ if (drm_dp_get_phy_test_pattern(&dp->aux, data)) {
	915	+ dev_err(dp->dev, "DP Phy Test pattern AUX read failure\n");
	916	+ return DP_TEST_NAK;
	917	+ }
	918	+
	919	+ if (data->link_rate > drm_dp_bw_code_to_link_rate(dp->video_info.max_link_rate)) {
	920	+ dev_err(dp->dev, "invalid link rate = 0x%x\n", data->link_rate);
	921	+ return DP_TEST_NAK;
	922	+ }
	923	+
	924	+ /* Set test active flag here so userspace doesn't interrupt things */
	925	+ dp->compliance.test_active = true;
	926	+
	927	+ return DP_TEST_ACK;
	928	+}
	929	+
	930	+static void analogix_dp_handle_test_request(struct analogix_dp_device *dp)
	931	+{
	932	+ u8 response = DP_TEST_NAK;
	933	+ u8 request = 0;
	934	+ int ret;
	935	+
	936	+ ret = drm_dp_dpcd_readb(&dp->aux, DP_TEST_REQUEST, &request);
	937	+ if (ret < 0) {
	938	+ dev_err(dp->dev, "Could not read test request from sink\n");
	939	+ goto update_status;
	940	+ }
	941	+
	942	+ switch (request) {
	943	+ case DP_TEST_LINK_PHY_TEST_PATTERN:
	944	+ dev_info(dp->dev, "PHY_PATTERN test requested\n");
	945	+ response = analogix_dp_autotest_phy_pattern(dp);
	946	+ break;
	947	+ default:
	948	+ dev_err(dp->dev, "Invalid test request '%02x'\n", request);
	949	+ break;
	950	+ }
	951	+
	952	+ if (response & DP_TEST_ACK)
	953	+ dp->compliance.test_type = request;
	954	+
	955	+update_status:
	956	+ ret = drm_dp_dpcd_writeb(&dp->aux, DP_TEST_RESPONSE, response);
	957	+ if (ret < 0)
	958	+ dev_err(dp->dev, "Could not write test response to sink\n");
	959	+}
	960	+
	961	+void analogix_dp_check_device_service_irq(struct analogix_dp_device *dp)
	962	+{
	963	+ u8 val;
	964	+ int ret;
	965	+
	966	+ ret = drm_dp_dpcd_readb(&dp->aux, DP_DEVICE_SERVICE_IRQ_VECTOR, &val);
	967	+ if (ret < 0 \|\| !val)
	968	+ return;
	969	+
	970	+ ret = drm_dp_dpcd_writeb(&dp->aux, DP_DEVICE_SERVICE_IRQ_VECTOR, val);
	971	+ if (ret < 0)
	972	+ return;
	973	+
	974	+ if (val & DP_AUTOMATED_TEST_REQUEST)
	975	+ analogix_dp_handle_test_request(dp);
	976	+}
	977	+EXPORT_SYMBOL_GPL(analogix_dp_check_device_service_irq);
	978	+
	979	+static void analogix_dp_process_phy_request(struct analogix_dp_device *dp)
	980	+{
	981	+ struct drm_dp_phy_test_params *data = &dp->compliance.phytest;
	982	+ u8 spread, adjust_request[2];
	983	+ int ret;
	984	+
	985	+ dp->link_train.link_rate = drm_dp_link_rate_to_bw_code(data->link_rate);
	986	+ dp->link_train.lane_count = data->num_lanes;
	987	+
	988	+ ret = drm_dp_dpcd_readb(&dp->aux, DP_MAX_DOWNSPREAD, &spread);
	989	+ if (ret < 0) {
	990	+ dev_err(dp->dev, "Could not read ssc from sink\n");
	991	+ return;
	992	+ }
	993	+
	994	+ dp->link_train.ssc = !!(spread & DP_MAX_DOWNSPREAD_0_5);
	995	+
	996	+ ret = drm_dp_dpcd_read(&dp->aux, DP_ADJUST_REQUEST_LANE0_1,
	997	+ adjust_request, 2);
	998	+ if (ret < 0) {
	999	+ dev_err(dp->dev, "Could not read swing/pre-emphasis\n");
	1000	+ return;
	1001	+ }
	1002	+
	1003	+ analogix_dp_set_link_bandwidth(dp, dp->link_train.link_rate);
	1004	+ analogix_dp_set_lane_count(dp, dp->link_train.lane_count);
	1005	+ analogix_dp_get_adjust_training_lane(dp, adjust_request);
	1006	+ analogix_dp_set_lane_link_training(dp);
	1007	+
	1008	+ switch (data->phy_pattern) {
	1009	+ case DP_PHY_TEST_PATTERN_NONE:
	1010	+ dev_info(dp->dev, "Disable Phy Test Pattern\n");
	1011	+ analogix_dp_set_training_pattern(dp, DP_NONE);
	1012	+ break;
	1013	+ case DP_PHY_TEST_PATTERN_D10_2:
	1014	+ dev_info(dp->dev, "Set D10.2 Phy Test Pattern\n");
	1015	+ analogix_dp_set_training_pattern(dp, D10_2);
	1016	+ break;
	1017	+ case DP_PHY_TEST_PATTERN_PRBS7:
	1018	+ dev_info(dp->dev, "Set PRBS7 Phy Test Pattern\n");
	1019	+ analogix_dp_set_training_pattern(dp, PRBS7);
	1020	+ break;
	1021	+ case DP_PHY_TEST_PATTERN_80BIT_CUSTOM:
	1022	+ dev_info(dp->dev, "Set 80Bit Custom Phy Test Pattern\n");
	1023	+ analogix_dp_set_training_pattern(dp, TEST_PATTERN_80BIT);
	1024	+ break;
	1025	+ case DP_PHY_TEST_PATTERN_CP2520:
	1026	+ dev_info(dp->dev, "Set HBR2 compliance Phy Test Pattern\n");
	1027	+ analogix_dp_set_training_pattern(dp, TEST_PATTERN_HBR2);
	1028	+ break;
	1029	+ default:
	1030	+ dev_err(dp->dev, "Invalid Phy Test Pattern: %d\n", data->phy_pattern);
	1031	+ return;
	1032	+ }
	1033	+
	1034	+ drm_dp_set_phy_test_pattern(&dp->aux, data, 0x11);
	1035	+}
	1036	+
	1037	+void analogix_dp_phy_test(struct analogix_dp_device *dp)
	1038	+{
	1039	+ struct drm_device *dev = dp->drm_dev;
	1040	+ struct drm_modeset_acquire_ctx ctx;
	1041	+ int ret;
	1042	+
	1043	+ DRM_DEV_INFO(dp->dev, "PHY test\n");
	1044	+
	1045	+ drm_modeset_acquire_init(&ctx, 0);
	1046	+ for (;;) {
	1047	+ ret = drm_modeset_lock(&dev->mode_config.connection_mutex, &ctx);
	1048	+ if (ret != -EDEADLK)
	1049	+ break;
	1050	+
	1051	+ drm_modeset_backoff(&ctx);
	1052	+ }
	1053	+
	1054	+ analogix_dp_process_phy_request(dp);
	1055	+ drm_modeset_drop_locks(&ctx);
	1056	+ drm_modeset_acquire_fini(&ctx);
	1057	+}
	1058	+EXPORT_SYMBOL_GPL(analogix_dp_phy_test);
	1059	+
938	1060	static irqreturn_t analogix_dp_hpd_irq_handler(int irq, void *arg)
939	1061	{
940	1062	struct analogix_dp_device *dp = arg;
..	..	@@ -945,38 +1067,11 @@
945	1067	return IRQ_HANDLED;
946	1068	}
947	1069
948		-static irqreturn_t analogix_dp_hardirq(int irq, void *arg)
949		-{
950		- struct analogix_dp_device *dp = arg;
951		- irqreturn_t ret = IRQ_NONE;
952		- enum dp_irq_type irq_type;
953		-
954		- irq_type = analogix_dp_get_irq_type(dp);
955		- if (irq_type != DP_IRQ_TYPE_UNKNOWN) {
956		- analogix_dp_mute_hpd_interrupt(dp);
957		- ret = IRQ_WAKE_THREAD;
958		- }
959		-
960		- return ret;
961		-}
962		-
963	1070	static irqreturn_t analogix_dp_irq_thread(int irq, void *arg)
964	1071	{
965	1072	struct analogix_dp_device *dp = arg;
966		- enum dp_irq_type irq_type;
967	1073
968		- irq_type = analogix_dp_get_irq_type(dp);
969		- if (irq_type & DP_IRQ_TYPE_HP_CABLE_IN \|\|
970		- irq_type & DP_IRQ_TYPE_HP_CABLE_OUT) {
971		- dev_dbg(dp->dev, "Detected cable status changed!\n");
972		- if (dp->drm_dev)
973		- drm_helper_hpd_irq_event(dp->drm_dev);
974		- }
975		-
976		- if (irq_type != DP_IRQ_TYPE_UNKNOWN) {
977		- analogix_dp_clear_hotplug_interrupts(dp);
978		- analogix_dp_unmute_hpd_interrupt(dp);
979		- }
	1074	+ analogix_dp_irq_handler(dp);
980	1075
981	1076	return IRQ_HANDLED;
982	1077	}
..	..	@@ -997,10 +1092,68 @@
997	1092	return 0;
998	1093	}
999	1094
	1095	+static int analogix_dp_link_power_up(struct analogix_dp_device *dp)
	1096	+{
	1097	+ u8 value;
	1098	+ int ret;
	1099	+
	1100	+ if (dp->dpcd[DP_DPCD_REV] < 0x11)
	1101	+ return 0;
	1102	+
	1103	+ ret = drm_dp_dpcd_readb(&dp->aux, DP_SET_POWER, &value);
	1104	+ if (ret < 0)
	1105	+ return ret;
	1106	+
	1107	+ value &= ~DP_SET_POWER_MASK;
	1108	+ value \|= DP_SET_POWER_D0;
	1109	+
	1110	+ ret = drm_dp_dpcd_writeb(&dp->aux, DP_SET_POWER, value);
	1111	+ if (ret < 0)
	1112	+ return ret;
	1113	+
	1114	+ usleep_range(1000, 2000);
	1115	+
	1116	+ return 0;
	1117	+}
	1118	+
	1119	+static int analogix_dp_link_power_down(struct analogix_dp_device *dp)
	1120	+{
	1121	+ u8 value;
	1122	+ int ret;
	1123	+
	1124	+ if (dp->dpcd[DP_DPCD_REV] < 0x11)
	1125	+ return 0;
	1126	+
	1127	+ ret = drm_dp_dpcd_readb(&dp->aux, DP_SET_POWER, &value);
	1128	+ if (ret < 0)
	1129	+ return ret;
	1130	+
	1131	+ value &= ~DP_SET_POWER_MASK;
	1132	+ value \|= DP_SET_POWER_D3;
	1133	+
	1134	+ ret = drm_dp_dpcd_writeb(&dp->aux, DP_SET_POWER, value);
	1135	+ if (ret < 0)
	1136	+ return ret;
	1137	+
	1138	+ return 0;
	1139	+}
	1140	+
1000	1141	static int analogix_dp_commit(struct analogix_dp_device *dp)
1001	1142	{
1002	1143	struct video_info *video = &dp->video_info;
1003	1144	int ret;
	1145	+
	1146	+ ret = drm_dp_read_dpcd_caps(&dp->aux, dp->dpcd);
	1147	+ if (ret < 0) {
	1148	+ dev_err(dp->dev, "failed to read dpcd caps: %d\n", ret);
	1149	+ return ret;
	1150	+ }
	1151	+
	1152	+ ret = analogix_dp_link_power_up(dp);
	1153	+ if (ret) {
	1154	+ dev_err(dp->dev, "failed to power up link: %d\n", ret);
	1155	+ return ret;
	1156	+ }
1004	1157
1005	1158	if (device_property_read_bool(dp->dev, "panel-self-test"))
1006	1159	return drm_dp_dpcd_writeb(&dp->aux, DP_EDP_CONFIGURATION_SET,
..	..	@@ -1010,13 +1163,6 @@
1010	1163	if (ret) {
1011	1164	dev_err(dp->dev, "unable to do link train, ret=%d\n", ret);
1012	1165	return ret;
1013		- }
1014		-
1015		- if (!analogix_dp_bandwidth_ok(dp, &video->mode,
1016		- drm_dp_bw_code_to_link_rate(dp->link_train.link_rate),
1017		- dp->link_train.lane_count)) {
1018		- dev_err(dp->dev, "bandwidth overflow\n");
1019		- return -EINVAL;
1020	1166	}
1021	1167
1022	1168	ret = analogix_dp_enable_scramble(dp, 1);
..	..	@@ -1037,23 +1183,99 @@
1037	1183	return ret;
1038	1184	}
1039	1185
1040		- ret = analogix_dp_detect_sink_psr(dp);
1041		- if (ret)
1042		- return ret;
1043		-
1044	1186	/* Check whether panel supports fast training */
1045	1187	ret = analogix_dp_fast_link_train_detection(dp);
1046	1188	if (ret)
1047		- dp->psr_enable = false;
	1189	+ return ret;
1048	1190
1049		- if (dp->psr_enable) {
	1191	+ if (analogix_dp_detect_sink_psr(dp)) {
1050	1192	ret = analogix_dp_enable_sink_psr(dp);
1051	1193	if (ret)
1052	1194	return ret;
1053	1195	}
1054	1196
	1197	+ return ret;
	1198	+}
	1199	+
	1200	+static int analogix_dp_enable_psr(struct analogix_dp_device *dp)
	1201	+{
	1202	+ struct dp_sdp psr_vsc;
	1203	+ int ret;
	1204	+ u8 sink;
	1205	+
	1206	+ ret = drm_dp_dpcd_readb(&dp->aux, DP_PSR_STATUS, &sink);
	1207	+ if (ret != 1)
	1208	+ DRM_DEV_ERROR(dp->dev, "Failed to read psr status %d\n", ret);
	1209	+ else if (sink == DP_PSR_SINK_ACTIVE_RFB)
	1210	+ return 0;
	1211	+
	1212	+ /* Prepare VSC packet as per EDP 1.4 spec, Table 6.9 */
	1213	+ memset(&psr_vsc, 0, sizeof(psr_vsc));
	1214	+ psr_vsc.sdp_header.HB0 = 0;
	1215	+ psr_vsc.sdp_header.HB1 = 0x7;
	1216	+ psr_vsc.sdp_header.HB2 = 0x2;
	1217	+ psr_vsc.sdp_header.HB3 = 0x8;
	1218	+ psr_vsc.db[0] = 0;
	1219	+ psr_vsc.db[1] = EDP_VSC_PSR_STATE_ACTIVE \| EDP_VSC_PSR_CRC_VALUES_VALID;
	1220	+
	1221	+ ret = analogix_dp_send_psr_spd(dp, &psr_vsc, true);
	1222	+ if (!ret) {
	1223	+ analogix_dp_set_analog_power_down(dp, POWER_ALL, true);
	1224	+
	1225	+ if (dp->phy) {
	1226	+ union phy_configure_opts phy_cfg = {0};
	1227	+
	1228	+ phy_cfg.dp.lanes = 0;
	1229	+ phy_cfg.dp.set_lanes = true;
	1230	+ ret = phy_configure(dp->phy, &phy_cfg);
	1231	+ if (ret)
	1232	+ return ret;
	1233	+ }
	1234	+ }
1055	1235
1056	1236	return ret;
	1237	+}
	1238	+
	1239	+static int analogix_dp_disable_psr(struct analogix_dp_device *dp)
	1240	+{
	1241	+ struct dp_sdp psr_vsc;
	1242	+ int ret;
	1243	+ u8 sink;
	1244	+
	1245	+ analogix_dp_set_analog_power_down(dp, POWER_ALL, false);
	1246	+
	1247	+ ret = drm_dp_dpcd_writeb(&dp->aux, DP_SET_POWER, DP_SET_POWER_D0);
	1248	+ if (ret != 1) {
	1249	+ DRM_DEV_ERROR(dp->dev, "Failed to set DP Power0 %d\n", ret);
	1250	+ return ret;
	1251	+ }
	1252	+
	1253	+ ret = drm_dp_dpcd_readb(&dp->aux, DP_PSR_STATUS, &sink);
	1254	+ if (ret != 1) {
	1255	+ DRM_DEV_ERROR(dp->dev, "Failed to read psr status %d\n", ret);
	1256	+ return ret;
	1257	+ } else if (sink == DP_PSR_SINK_INACTIVE) {
	1258	+ DRM_DEV_ERROR(dp->dev, "sink inactive, skip disable psr");
	1259	+ return 0;
	1260	+ }
	1261	+
	1262	+ ret = analogix_dp_train_link(dp);
	1263	+ if (ret) {
	1264	+ DRM_DEV_ERROR(dp->dev, "Failed to train the link %d\n", ret);
	1265	+ return ret;
	1266	+ }
	1267	+
	1268	+ /* Prepare VSC packet as per EDP 1.4 spec, Table 6.9 */
	1269	+ memset(&psr_vsc, 0, sizeof(psr_vsc));
	1270	+ psr_vsc.sdp_header.HB0 = 0;
	1271	+ psr_vsc.sdp_header.HB1 = 0x7;
	1272	+ psr_vsc.sdp_header.HB2 = 0x2;
	1273	+ psr_vsc.sdp_header.HB3 = 0x8;
	1274	+
	1275	+ psr_vsc.db[0] = 0;
	1276	+ psr_vsc.db[1] = 0;
	1277	+
	1278	+ return analogix_dp_send_psr_spd(dp, &psr_vsc, true);
1057	1279	}
1058	1280
1059	1281	static int analogix_dp_get_modes(struct drm_connector *connector)
..	..	@@ -1062,31 +1284,49 @@
1062	1284	struct edid *edid;
1063	1285	int ret, num_modes = 0;
1064	1286
	1287	+ if (dp->plat_data->right && dp->plat_data->right->plat_data->bridge) {
	1288	+ struct drm_bridge *bridge = dp->plat_data->right->plat_data->bridge;
	1289	+
	1290	+ if (bridge->ops & DRM_BRIDGE_OP_MODES) {
	1291	+ if (!drm_bridge_get_modes(bridge, connector))
	1292	+ return 0;
	1293	+ }
	1294	+ }
	1295	+
1065	1296	if (dp->plat_data->panel)
1066		- num_modes += drm_panel_get_modes(dp->plat_data->panel);
	1297	+ num_modes += drm_panel_get_modes(dp->plat_data->panel, connector);
	1298	+
	1299	+ if (dp->plat_data->bridge)
	1300	+ num_modes += drm_bridge_get_modes(dp->plat_data->bridge, connector);
1067	1301
1068	1302	if (!num_modes) {
1069		- if (dp->plat_data->panel) {
1070		- ret = analogix_dp_prepare_panel(dp, true);
1071		- if (ret) {
1072		- DRM_ERROR("Failed to prepare panel (%d)\n", ret);
1073		- return 0;
1074		- }
1075		- }
	1303	+ ret = analogix_dp_phy_power_on(dp);
	1304	+ if (ret)
	1305	+ return 0;
1076	1306
1077		- pm_runtime_get_sync(dp->dev);
	1307	+ if (dp->plat_data->panel)
	1308	+ analogix_dp_panel_prepare(dp);
	1309	+
1078	1310	edid = drm_get_edid(connector, &dp->aux.ddc);
1079		- pm_runtime_put(dp->dev);
1080	1311	if (edid) {
1081	1312	drm_connector_update_edid_property(&dp->connector,
1082	1313	edid);
1083	1314	num_modes += drm_add_edid_modes(&dp->connector, edid);
1084	1315	kfree(edid);
1085	1316	}
	1317	+
	1318	+ analogix_dp_phy_power_off(dp);
1086	1319	}
1087	1320
1088	1321	if (dp->plat_data->get_modes)
1089	1322	num_modes += dp->plat_data->get_modes(dp->plat_data, connector);
	1323	+
	1324	+ if (num_modes > 0 && dp->plat_data->split_mode) {
	1325	+ struct drm_display_mode *mode;
	1326	+
	1327	+ list_for_each_entry(mode, &connector->probed_modes, head)
	1328	+ dp->plat_data->convert_to_split_mode(mode);
	1329	+ }
1090	1330
1091	1331	return num_modes;
1092	1332	}
..	..	@@ -1099,91 +1339,121 @@
1099	1339	return dp->encoder;
1100	1340	}
1101	1341
1102		-static int analogix_dp_loader_protect(struct drm_connector *connector, bool on)
	1342	+
	1343	+static int analogix_dp_atomic_check(struct drm_connector *connector,
	1344	+ struct drm_atomic_state *state)
1103	1345	{
1104	1346	struct analogix_dp_device *dp = to_dp(connector);
1105		- int ret;
	1347	+ struct drm_connector_state *conn_state;
	1348	+ struct drm_crtc_state *crtc_state;
1106	1349
1107		- if (dp->plat_data->panel)
1108		- drm_panel_loader_protect(dp->plat_data->panel, on);
	1350	+ conn_state = drm_atomic_get_new_connector_state(state, connector);
	1351	+ if (WARN_ON(!conn_state))
	1352	+ return -ENODEV;
1109	1353
1110		- if (on) {
1111		- dp->dpms_mode = DRM_MODE_DPMS_ON;
	1354	+ conn_state->self_refresh_aware = true;
1112	1355
1113		- pm_runtime_get_sync(dp->dev);
	1356	+ if (!conn_state->crtc)
	1357	+ return 0;
1114	1358
1115		- analogix_dp_phy_power_on(dp);
	1359	+ crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);
	1360	+ if (!crtc_state)
	1361	+ return 0;
1116	1362
1117		- ret = analogix_dp_detect_sink_psr(dp);
1118		- if (ret)
1119		- return ret;
1120		-
1121		- if (dp->psr_enable) {
1122		- ret = analogix_dp_enable_sink_psr(dp);
1123		- if (ret)
1124		- return ret;
1125		- }
1126		- }
	1363	+ if (crtc_state->self_refresh_active && !dp->psr_supported)
	1364	+ return -EINVAL;
1127	1365
1128	1366	return 0;
1129	1367	}
1130	1368
1131	1369	static const struct drm_connector_helper_funcs analogix_dp_connector_helper_funcs = {
1132		- .loader_protect = analogix_dp_loader_protect,
1133	1370	.get_modes = analogix_dp_get_modes,
1134	1371	.best_encoder = analogix_dp_best_encoder,
	1372	+ .atomic_check = analogix_dp_atomic_check,
1135	1373	};
1136	1374
1137	1375	static enum drm_connector_status
1138		-analogix_dp_detect(struct drm_connector *connector, bool force)
	1376	+analogix_dp_detect(struct analogix_dp_device *dp)
1139	1377	{
1140		- struct analogix_dp_device *dp = to_dp(connector);
1141	1378	enum drm_connector_status status = connector_status_disconnected;
1142	1379	int ret;
1143	1380
1144		- if (dp->plat_data->panel) {
1145		- ret = analogix_dp_prepare_panel(dp, true);
1146		- if (ret) {
1147		- DRM_ERROR("Failed to prepare panel (%d)\n", ret);
1148		- return ret;
1149		- }
	1381	+ ret = analogix_dp_phy_power_on(dp);
	1382	+ if (ret) {
	1383	+ extcon_set_state_sync(dp->extcon, EXTCON_DISP_DP, false);
	1384	+ return connector_status_disconnected;
1150	1385	}
1151	1386
1152		- pm_runtime_get_sync(dp->dev);
1153		- if (!analogix_dp_detect_hpd(dp))
	1387	+ if (dp->plat_data->panel)
	1388	+ analogix_dp_panel_prepare(dp);
	1389	+
	1390	+ if (!analogix_dp_detect_hpd(dp)) {
	1391	+ ret = analogix_dp_get_max_rx_bandwidth(dp, &dp->link_train.link_rate);
	1392	+ if (ret) {
	1393	+ dev_err(dp->dev, "failed to read max link rate\n");
	1394	+ goto out;
	1395	+ }
	1396	+
	1397	+ ret = analogix_dp_get_max_rx_lane_count(dp, &dp->link_train.lane_count);
	1398	+ if (ret) {
	1399	+ dev_err(dp->dev, "failed to read max lane count\n");
	1400	+ goto out;
	1401	+ }
	1402	+
1154	1403	status = connector_status_connected;
1155		- pm_runtime_put(dp->dev);
	1404	+ }
	1405	+
	1406	+ if (dp->plat_data->bridge) {
	1407	+ struct drm_bridge *next_bridge = dp->plat_data->bridge;
	1408	+
	1409	+ if (next_bridge->ops & DRM_BRIDGE_OP_DETECT)
	1410	+ status = drm_bridge_detect(next_bridge);
	1411	+ }
	1412	+
	1413	+out:
	1414	+ analogix_dp_phy_power_off(dp);
	1415	+
	1416	+ if (status == connector_status_connected)
	1417	+ extcon_set_state_sync(dp->extcon, EXTCON_DISP_DP, true);
	1418	+ else
	1419	+ extcon_set_state_sync(dp->extcon, EXTCON_DISP_DP, false);
1156	1420
1157	1421	return status;
1158	1422	}
1159	1423
1160		-static int
1161		-analogix_dp_atomic_connector_get_property(struct drm_connector *connector,
1162		- const struct drm_connector_state *state,
1163		- struct drm_property *property,
1164		- uint64_t *val)
	1424	+static enum drm_connector_status
	1425	+analogix_dp_connector_detect(struct drm_connector *connector, bool force)
1165	1426	{
1166	1427	struct analogix_dp_device *dp = to_dp(connector);
1167		- const struct analogix_dp_property_ops *ops = dp->plat_data->property_ops;
1168	1428
1169		- if (ops && ops->get_property)
1170		- return ops->get_property(connector, state, property,
1171		- val, dp->plat_data);
	1429	+ if (dp->plat_data->right && analogix_dp_detect(dp->plat_data->right) != connector_status_connected)
	1430	+ return connector_status_disconnected;
	1431	+
	1432	+ return analogix_dp_detect(dp);
	1433	+}
	1434	+
	1435	+static void analogix_dp_connector_force(struct drm_connector *connector)
	1436	+{
	1437	+ struct analogix_dp_device *dp = to_dp(connector);
	1438	+
	1439	+ if (connector->status == connector_status_connected)
	1440	+ extcon_set_state_sync(dp->extcon, EXTCON_DISP_DP, true);
1172	1441	else
1173		- return -EINVAL;
	1442	+ extcon_set_state_sync(dp->extcon, EXTCON_DISP_DP, false);
1174	1443	}
1175	1444
1176	1445	static const struct drm_connector_funcs analogix_dp_connector_funcs = {
1177	1446	.fill_modes = drm_helper_probe_single_connector_modes,
1178		- .detect = analogix_dp_detect,
	1447	+ .detect = analogix_dp_connector_detect,
1179	1448	.destroy = drm_connector_cleanup,
1180	1449	.reset = drm_atomic_helper_connector_reset,
1181	1450	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1182	1451	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1183		- .atomic_get_property = analogix_dp_atomic_connector_get_property,
	1452	+ .force = analogix_dp_connector_force,
1184	1453	};
1185	1454
1186		-static int analogix_dp_bridge_attach(struct drm_bridge *bridge)
	1455	+static int analogix_dp_bridge_attach(struct drm_bridge *bridge,
	1456	+ enum drm_bridge_attach_flags flags)
1187	1457	{
1188	1458	struct analogix_dp_device *dp = bridge->driver_private;
1189	1459	struct drm_encoder *encoder = dp->encoder;
..	..	@@ -1195,15 +1465,35 @@
1195	1465	return -ENODEV;
1196	1466	}
1197	1467
	1468	+ if (dp->plat_data->bridge) {
	1469	+ ret = drm_bridge_attach(bridge->encoder, dp->plat_data->bridge, bridge,
	1470	+ dp->plat_data->skip_connector ?
	1471	+ 0 : DRM_BRIDGE_ATTACH_NO_CONNECTOR);
	1472	+ if (ret) {
	1473	+ DRM_ERROR("Failed to attach external bridge: %d\n", ret);
	1474	+ return ret;
	1475	+ }
	1476	+ }
	1477	+
	1478	+ if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)
	1479	+ return 0;
	1480	+
1198	1481	if (!dp->plat_data->skip_connector) {
1199		- const struct analogix_dp_property_ops *ops = dp->plat_data->property_ops;
	1482	+ int connector_type = DRM_MODE_CONNECTOR_eDP;
	1483	+
	1484	+ if (dp->plat_data->bridge &&
	1485	+ dp->plat_data->bridge->type != DRM_MODE_CONNECTOR_Unknown)
	1486	+ connector_type = dp->plat_data->bridge->type;
1200	1487
1201	1488	connector = &dp->connector;
1202	1489	connector->polled = DRM_CONNECTOR_POLL_HPD;
	1490	+ if (dp->plat_data->bridge && dp->plat_data->bridge->ops & DRM_BRIDGE_OP_DETECT)
	1491	+ connector->polled = DRM_CONNECTOR_POLL_CONNECT \|
	1492	+ DRM_CONNECTOR_POLL_DISCONNECT;
1203	1493
1204	1494	ret = drm_connector_init(dp->drm_dev, connector,
1205	1495	&analogix_dp_connector_funcs,
1206		- DRM_MODE_CONNECTOR_eDP);
	1496	+ connector_type);
1207	1497	if (ret) {
1208	1498	DRM_ERROR("Failed to initialize connector with drm\n");
1209	1499	return ret;
..	..	@@ -1212,9 +1502,6 @@
1212	1502	drm_connector_helper_add(connector,
1213	1503	&analogix_dp_connector_helper_funcs);
1214	1504	drm_connector_attach_encoder(connector, encoder);
1215		-
1216		- if (ops && ops->attach_properties)
1217		- ops->attach_properties(connector);
1218	1505	}
1219	1506
1220	1507	/*
..	..	@@ -1223,18 +1510,10 @@
1223	1510	* plat_data->attch return, that's why we record the connector
1224	1511	* point after plat attached.
1225	1512	*/
1226		- if (dp->plat_data->attach) {
1227		- ret = dp->plat_data->attach(dp->plat_data, bridge, connector);
1228		- if (ret) {
1229		- DRM_ERROR("Failed at platform attch func\n");
1230		- return ret;
1231		- }
1232		- }
1233		-
1234		- if (dp->plat_data->panel) {
1235		- ret = drm_panel_attach(dp->plat_data->panel, &dp->connector);
	1513	+ if (dp->plat_data->attach) {
	1514	+ ret = dp->plat_data->attach(dp->plat_data, bridge, connector);
1236	1515	if (ret) {
1237		- DRM_ERROR("Failed to attach panel\n");
	1516	+ DRM_ERROR("Failed at platform attach func\n");
1238	1517	return ret;
1239	1518	}
1240	1519	}
..	..	@@ -1242,28 +1521,85 @@
1242	1521	return 0;
1243	1522	}
1244	1523
1245		-static void analogix_dp_bridge_pre_enable(struct drm_bridge *bridge)
	1524	+static void analogix_dp_bridge_detach(struct drm_bridge *bridge)
1246	1525	{
1247	1526	struct analogix_dp_device *dp = bridge->driver_private;
1248		- int ret;
1249	1527
1250		- if (dp->plat_data->panel) {
1251		- ret = analogix_dp_prepare_panel(dp, true);
1252		- if (ret)
1253		- DRM_ERROR("failed to setup the panel ret = %d\n", ret);
1254		- }
	1528	+ if (dp->plat_data->detach)
	1529	+ dp->plat_data->detach(dp->plat_data, bridge);
	1530	+}
	1531	+
	1532	+static
	1533	+struct drm_crtc analogix_dp_get_old_crtc(struct analogix_dp_device dp,
	1534	+ struct drm_atomic_state *state)
	1535	+{
	1536	+ struct drm_encoder *encoder = dp->encoder;
	1537	+ struct drm_connector *connector;
	1538	+ struct drm_connector_state *conn_state;
	1539	+
	1540	+ connector = drm_atomic_get_old_connector_for_encoder(state, encoder);
	1541	+ if (!connector)
	1542	+ return NULL;
	1543	+
	1544	+ conn_state = drm_atomic_get_old_connector_state(state, connector);
	1545	+ if (!conn_state)
	1546	+ return NULL;
	1547	+
	1548	+ return conn_state->crtc;
	1549	+}
	1550	+
	1551	+static
	1552	+struct drm_crtc analogix_dp_get_new_crtc(struct analogix_dp_device dp,
	1553	+ struct drm_atomic_state *state)
	1554	+{
	1555	+ struct drm_bridge *bridge = &dp->bridge;
	1556	+ struct drm_encoder *encoder = bridge->encoder;
	1557	+ struct drm_connector *connector;
	1558	+ struct drm_connector_state *conn_state;
	1559	+
	1560	+ connector = drm_atomic_get_new_connector_for_encoder(state, encoder);
	1561	+ if (!connector)
	1562	+ return NULL;
	1563	+
	1564	+ conn_state = drm_atomic_get_new_connector_state(state, connector);
	1565	+ if (!conn_state)
	1566	+ return NULL;
	1567	+
	1568	+ return conn_state->crtc;
	1569	+}
	1570	+
	1571	+static void
	1572	+analogix_dp_bridge_atomic_pre_enable(struct drm_bridge *bridge,
	1573	+ struct drm_bridge_state *old_bridge_state)
	1574	+{
	1575	+ struct drm_atomic_state *old_state = old_bridge_state->base.state;
	1576	+ struct analogix_dp_device *dp = bridge->driver_private;
	1577	+ struct drm_crtc *crtc;
	1578	+ struct drm_crtc_state *old_crtc_state;
	1579	+
	1580	+ crtc = analogix_dp_get_new_crtc(dp, old_state);
	1581	+ if (!crtc)
	1582	+ return;
	1583	+
	1584	+ old_crtc_state = drm_atomic_get_old_crtc_state(old_state, crtc);
	1585	+ /* Don't touch the panel if we're coming back from PSR */
	1586	+ if (old_crtc_state && old_crtc_state->self_refresh_active)
	1587	+ return;
	1588	+
	1589	+ if (dp->plat_data->panel)
	1590	+ analogix_dp_panel_prepare(dp);
1255	1591	}
1256	1592
1257	1593	static int analogix_dp_set_bridge(struct analogix_dp_device *dp)
1258	1594	{
1259	1595	int ret;
1260	1596
1261		- pm_runtime_get_sync(dp->dev);
1262		-
1263	1597	if (dp->plat_data->power_on_start)
1264	1598	dp->plat_data->power_on_start(dp->plat_data);
1265	1599
1266		- analogix_dp_phy_power_on(dp);
	1600	+ ret = analogix_dp_phy_power_on(dp);
	1601	+ if (ret)
	1602	+ return ret;
1267	1603
1268	1604	ret = analogix_dp_init_dp(dp);
1269	1605	if (ret)
..	..	@@ -1292,22 +1628,47 @@
1292	1628	if (dp->plat_data->power_on_end)
1293	1629	dp->plat_data->power_on_end(dp->plat_data);
1294	1630
1295		- enable_irq(dp->irq);
1296	1631	return 0;
1297	1632
1298	1633	out_dp_init:
1299	1634	analogix_dp_phy_power_off(dp);
1300	1635	if (dp->plat_data->power_off)
1301	1636	dp->plat_data->power_off(dp->plat_data);
1302		- pm_runtime_put_sync(dp->dev);
1303		-
1304	1637	return ret;
1305	1638	}
1306	1639
1307		-static void analogix_dp_bridge_enable(struct drm_bridge *bridge)
	1640	+static void analogix_dp_modeset_retry_work_fn(struct work_struct *work)
1308	1641	{
	1642	+ struct analogix_dp_device *dp =
	1643	+ container_of(work, typeof(*dp), modeset_retry_work);
	1644	+
	1645	+ /* Send Hotplug uevent so userspace can reprobe */
	1646	+ drm_kms_helper_hotplug_event(dp->bridge.dev);
	1647	+}
	1648	+
	1649	+static void
	1650	+analogix_dp_bridge_atomic_enable(struct drm_bridge *bridge,
	1651	+ struct drm_bridge_state *old_bridge_state)
	1652	+{
	1653	+ struct drm_atomic_state *old_state = old_bridge_state->base.state;
1309	1654	struct analogix_dp_device *dp = bridge->driver_private;
	1655	+ struct drm_crtc *crtc;
	1656	+ struct drm_crtc_state *old_crtc_state;
1310	1657	int timeout_loop = 0;
	1658	+ int ret;
	1659	+
	1660	+ crtc = analogix_dp_get_new_crtc(dp, old_state);
	1661	+ if (!crtc)
	1662	+ return;
	1663	+
	1664	+ old_crtc_state = drm_atomic_get_old_crtc_state(old_state, crtc);
	1665	+ /* Not a full enable, just disable PSR and continue */
	1666	+ if (old_crtc_state && old_crtc_state->self_refresh_active) {
	1667	+ ret = analogix_dp_disable_psr(dp);
	1668	+ if (ret)
	1669	+ DRM_ERROR("Failed to disable psr %d\n", ret);
	1670	+ return;
	1671	+ }
1311	1672
1312	1673	if (dp->dpms_mode == DRM_MODE_DPMS_ON)
1313	1674	return;
..	..	@@ -1323,12 +1684,14 @@
1323	1684	usleep_range(10, 11);
1324	1685	}
1325	1686	dev_err(dp->dev, "too many times retry set bridge, give it up\n");
	1687	+
	1688	+ /* Schedule a Hotplug Uevent to userspace to start modeset */
	1689	+ schedule_work(&dp->modeset_retry_work);
1326	1690	}
1327	1691
1328	1692	static void analogix_dp_bridge_disable(struct drm_bridge *bridge)
1329	1693	{
1330	1694	struct analogix_dp_device *dp = bridge->driver_private;
1331		- int ret;
1332	1695
1333	1696	if (dp->dpms_mode != DRM_MODE_DPMS_ON)
1334	1697	return;
..	..	@@ -1340,44 +1703,116 @@
1340	1703	}
1341	1704	}
1342	1705
1343		- disable_irq(dp->irq);
	1706	+ if (!analogix_dp_get_plug_in_status(dp))
	1707	+ analogix_dp_link_power_down(dp);
1344	1708
1345	1709	if (dp->plat_data->power_off)
1346	1710	dp->plat_data->power_off(dp->plat_data);
1347	1711
1348		- analogix_dp_reset_aux(dp);
1349	1712	analogix_dp_set_analog_power_down(dp, POWER_ALL, 1);
1350	1713	analogix_dp_phy_power_off(dp);
1351	1714
1352		- pm_runtime_put_sync(dp->dev);
	1715	+ if (dp->plat_data->panel)
	1716	+ analogix_dp_panel_unprepare(dp);
1353	1717
1354		- if (dp->plat_data->panel) {
1355		- ret = analogix_dp_prepare_panel(dp, false);
1356		- if (ret)
1357		- DRM_ERROR("failed to setup the panel ret = %d\n", ret);
1358		- }
1359		-
1360		- dp->psr_enable = false;
1361	1718	dp->fast_train_enable = false;
	1719	+ dp->psr_supported = false;
1362	1720	dp->dpms_mode = DRM_MODE_DPMS_OFF;
1363	1721	}
1364	1722
	1723	+void analogix_dp_disable(struct analogix_dp_device *dp)
	1724	+{
	1725	+ analogix_dp_bridge_disable(&dp->bridge);
	1726	+}
	1727	+EXPORT_SYMBOL_GPL(analogix_dp_disable);
	1728	+
	1729	+static void
	1730	+analogix_dp_bridge_atomic_disable(struct drm_bridge *bridge,
	1731	+ struct drm_bridge_state *old_bridge_state)
	1732	+{
	1733	+ struct drm_atomic_state *old_state = old_bridge_state->base.state;
	1734	+ struct analogix_dp_device *dp = bridge->driver_private;
	1735	+ struct drm_crtc old_crtc, new_crtc;
	1736	+ struct drm_crtc_state *old_crtc_state = NULL;
	1737	+ struct drm_crtc_state *new_crtc_state = NULL;
	1738	+ int ret;
	1739	+
	1740	+ new_crtc = analogix_dp_get_new_crtc(dp, old_state);
	1741	+ if (!new_crtc)
	1742	+ goto out;
	1743	+
	1744	+ new_crtc_state = drm_atomic_get_new_crtc_state(old_state, new_crtc);
	1745	+ if (!new_crtc_state)
	1746	+ goto out;
	1747	+
	1748	+ /* Don't do a full disable on PSR transitions */
	1749	+ if (new_crtc_state->self_refresh_active)
	1750	+ return;
	1751	+
	1752	+out:
	1753	+ old_crtc = analogix_dp_get_old_crtc(dp, old_state);
	1754	+ if (old_crtc) {
	1755	+ old_crtc_state = drm_atomic_get_old_crtc_state(old_state,
	1756	+ old_crtc);
	1757	+
	1758	+ /* When moving from PSR to fully disabled, exit PSR first. */
	1759	+ if (old_crtc_state && old_crtc_state->self_refresh_active) {
	1760	+ ret = analogix_dp_disable_psr(dp);
	1761	+ if (ret)
	1762	+ DRM_ERROR("Failed to disable psr (%d)\n", ret);
	1763	+ }
	1764	+ }
	1765	+
	1766	+ analogix_dp_bridge_disable(bridge);
	1767	+}
	1768	+
	1769	+static void
	1770	+analogix_dp_bridge_atomic_post_disable(struct drm_bridge *bridge,
	1771	+ struct drm_bridge_state *old_bridge_state)
	1772	+{
	1773	+ struct drm_atomic_state *old_state = old_bridge_state->base.state;
	1774	+ struct analogix_dp_device *dp = bridge->driver_private;
	1775	+ struct drm_crtc *crtc;
	1776	+ struct drm_crtc_state *new_crtc_state;
	1777	+ int ret;
	1778	+
	1779	+ crtc = analogix_dp_get_new_crtc(dp, old_state);
	1780	+ if (!crtc)
	1781	+ return;
	1782	+
	1783	+ new_crtc_state = drm_atomic_get_new_crtc_state(old_state, crtc);
	1784	+ if (!new_crtc_state \|\| !new_crtc_state->self_refresh_active)
	1785	+ return;
	1786	+
	1787	+ ret = analogix_dp_enable_psr(dp);
	1788	+ if (ret)
	1789	+ DRM_ERROR("Failed to enable psr (%d)\n", ret);
	1790	+}
	1791	+
1365	1792	static void analogix_dp_bridge_mode_set(struct drm_bridge *bridge,
1366		- struct drm_display_mode *orig_mode,
1367		- struct drm_display_mode *mode)
	1793	+ const struct drm_display_mode *orig_mode,
	1794	+ const struct drm_display_mode *adj_mode)
1368	1795	{
1369	1796	struct analogix_dp_device *dp = bridge->driver_private;
1370	1797	struct drm_display_info *display_info = &dp->connector.display_info;
1371	1798	struct video_info *video = &dp->video_info;
	1799	+ struct drm_display_mode *mode = &video->mode;
1372	1800	struct device_node *dp_node = dp->dev->of_node;
1373	1801	int vic;
1374	1802
1375		- drm_mode_copy(&video->mode, mode);
	1803	+ drm_mode_copy(mode, adj_mode);
	1804	+ if (dp->plat_data->split_mode)
	1805	+ dp->plat_data->convert_to_origin_mode(mode);
1376	1806
1377	1807	/* Input video interlaces & hsync pol & vsync pol */
1378	1808	video->interlaced = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);
1379		- video->v_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NVSYNC);
1380		- video->h_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NHSYNC);
	1809	+ if (dp->plat_data->dev_type == RK3588_EDP) {
	1810	+ video->v_sync_polarity = true;
	1811	+ video->h_sync_polarity = true;
	1812	+ } else {
	1813	+ video->v_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NVSYNC);
	1814	+ video->h_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NHSYNC);
	1815	+ }
1381	1816
1382	1817	/* Input video dynamic_range & colorimetry */
1383	1818	vic = drm_match_cea_mode(mode);
..	..	@@ -1441,74 +1876,153 @@
1441	1876	video->interlaced = true;
1442	1877	}
1443	1878
	1879	+static bool analogix_dp_link_config_validate(u8 link_rate, u8 lane_count)
	1880	+{
	1881	+ switch (link_rate) {
	1882	+ case DP_LINK_BW_1_62:
	1883	+ case DP_LINK_BW_2_7:
	1884	+ case DP_LINK_BW_5_4:
	1885	+ break;
	1886	+ default:
	1887	+ return false;
	1888	+ }
	1889	+
	1890	+ switch (lane_count) {
	1891	+ case 1:
	1892	+ case 2:
	1893	+ case 4:
	1894	+ break;
	1895	+ default:
	1896	+ return false;
	1897	+ }
	1898	+
	1899	+ return true;
	1900	+}
	1901	+
1444	1902	static enum drm_mode_status
1445	1903	analogix_dp_bridge_mode_valid(struct drm_bridge *bridge,
	1904	+ const struct drm_display_info *info,
1446	1905	const struct drm_display_mode *mode)
1447	1906	{
1448	1907	struct analogix_dp_device *dp = bridge->driver_private;
	1908	+ struct drm_display_mode m;
	1909	+ u32 max_link_rate, max_lane_count;
1449	1910
1450		- if (!analogix_dp_bandwidth_ok(dp, mode,
1451		- drm_dp_bw_code_to_link_rate(dp->video_info.max_link_rate),
1452		- dp->video_info.max_lane_count))
	1911	+ drm_mode_copy(&m, mode);
	1912	+
	1913	+ if (dp->plat_data->split_mode)
	1914	+ dp->plat_data->convert_to_origin_mode(&m);
	1915	+
	1916	+ max_link_rate = min_t(u32, dp->video_info.max_link_rate,
	1917	+ dp->link_train.link_rate);
	1918	+ max_lane_count = min_t(u32, dp->video_info.max_lane_count,
	1919	+ dp->link_train.lane_count);
	1920	+ if (analogix_dp_link_config_validate(max_link_rate, max_lane_count) &&
	1921	+ !analogix_dp_bandwidth_ok(dp, &m,
	1922	+ drm_dp_bw_code_to_link_rate(max_link_rate),
	1923	+ max_lane_count))
1453	1924	return MODE_BAD;
1454	1925
1455	1926	return MODE_OK;
1456	1927	}
1457	1928
1458		-static void analogix_dp_bridge_nop(struct drm_bridge *bridge)
1459		-{
1460		- /* do nothing */
1461		-}
1462		-
1463	1929	static const struct drm_bridge_funcs analogix_dp_bridge_funcs = {
1464		- .pre_enable = analogix_dp_bridge_pre_enable,
1465		- .enable = analogix_dp_bridge_enable,
1466		- .disable = analogix_dp_bridge_disable,
1467		- .post_disable = analogix_dp_bridge_nop,
	1930	+ .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
	1931	+ .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
	1932	+ .atomic_reset = drm_atomic_helper_bridge_reset,
	1933	+ .atomic_pre_enable = analogix_dp_bridge_atomic_pre_enable,
	1934	+ .atomic_enable = analogix_dp_bridge_atomic_enable,
	1935	+ .atomic_disable = analogix_dp_bridge_atomic_disable,
	1936	+ .atomic_post_disable = analogix_dp_bridge_atomic_post_disable,
1468	1937	.mode_set = analogix_dp_bridge_mode_set,
1469	1938	.attach = analogix_dp_bridge_attach,
	1939	+ .detach = analogix_dp_bridge_detach,
1470	1940	.mode_valid = analogix_dp_bridge_mode_valid,
1471	1941	};
1472	1942
1473		-static int analogix_dp_create_bridge(struct drm_device *drm_dev,
1474		- struct analogix_dp_device *dp)
	1943	+static int analogix_dp_bridge_init(struct analogix_dp_device *dp)
1475	1944	{
1476		- struct drm_bridge *bridge;
	1945	+ struct drm_bridge *bridge = &dp->bridge;
1477	1946	int ret;
1478	1947
1479		- bridge = devm_kzalloc(drm_dev->dev, sizeof(*bridge), GFP_KERNEL);
1480		- if (!bridge) {
1481		- DRM_ERROR("failed to allocate for drm bridge\n");
1482		- return -ENOMEM;
	1948	+ if (!dp->plat_data->left) {
	1949	+ ret = drm_bridge_attach(dp->encoder, bridge, NULL, 0);
	1950	+ if (ret) {
	1951	+ DRM_ERROR("failed to attach drm bridge\n");
	1952	+ return ret;
	1953	+ }
1483	1954	}
1484	1955
1485		- dp->bridge = bridge;
	1956	+ if (dp->plat_data->right) {
	1957	+ struct analogix_dp_device *secondary = dp->plat_data->right;
	1958	+ struct drm_bridge *last_bridge =
	1959	+ list_last_entry(&bridge->encoder->bridge_chain,
	1960	+ struct drm_bridge, chain_node);
1486	1961
1487		- bridge->driver_private = dp;
1488		- bridge->funcs = &analogix_dp_bridge_funcs;
1489		-
1490		- ret = drm_bridge_attach(dp->encoder, bridge, NULL);
1491		- if (ret) {
1492		- DRM_ERROR("failed to attach drm bridge\n");
1493		- return -EINVAL;
	1962	+ ret = drm_bridge_attach(dp->encoder, &secondary->bridge, last_bridge,
	1963	+ DRM_BRIDGE_ATTACH_NO_CONNECTOR);
	1964	+ if (ret)
	1965	+ return ret;
1494	1966	}
1495	1967
1496	1968	return 0;
	1969	+}
	1970	+
	1971	+static u32 analogix_dp_parse_link_frequencies(struct analogix_dp_device *dp)
	1972	+{
	1973	+ struct device_node *node = dp->dev->of_node;
	1974	+ struct device_node *endpoint;
	1975	+ u64 frequency = 0;
	1976	+ int cnt;
	1977	+
	1978	+ endpoint = of_graph_get_endpoint_by_regs(node, 1, 0);
	1979	+ if (!endpoint)
	1980	+ return 0;
	1981	+
	1982	+ cnt = of_property_count_u64_elems(endpoint, "link-frequencies");
	1983	+ if (cnt > 0)
	1984	+ of_property_read_u64_index(endpoint, "link-frequencies",
	1985	+ cnt - 1, &frequency);
	1986	+ of_node_put(endpoint);
	1987	+
	1988	+ if (!frequency)
	1989	+ return 0;
	1990	+
	1991	+ do_div(frequency, 10 * 1000); /* symbol rate kbytes */
	1992	+
	1993	+ switch (frequency) {
	1994	+ case 162000:
	1995	+ case 270000:
	1996	+ case 540000:
	1997	+ break;
	1998	+ default:
	1999	+ dev_err(dp->dev, "invalid link frequency value: %lld\n", frequency);
	2000	+ return 0;
	2001	+ }
	2002	+
	2003	+ return frequency;
1497	2004	}
1498	2005
1499	2006	static int analogix_dp_dt_parse_pdata(struct analogix_dp_device *dp)
1500	2007	{
1501	2008	struct device_node *dp_node = dp->dev->of_node;
1502	2009	struct video_info *video_info = &dp->video_info;
	2010	+ struct property *prop;
	2011	+ int ret, len, num_lanes;
	2012	+ u32 max_link_rate;
1503	2013
1504	2014	switch (dp->plat_data->dev_type) {
1505	2015	case RK3288_DP:
1506		- case RK3368_EDP:
1507	2016	case RK3568_EDP:
	2017	+ /*
	2018	+ * Like Rk3288 DisplayPort TRM indicate that "Main link
	2019	+ * containing 4 physical lanes of 2.7/1.62 Gbps/lane".
	2020	+ */
1508	2021	video_info->max_link_rate = 0x0A;
1509	2022	video_info->max_lane_count = 0x04;
1510	2023	break;
1511	2024	case RK3399_EDP:
	2025	+ case RK3588_EDP:
1512	2026	video_info->max_link_rate = 0x14;
1513	2027	video_info->max_lane_count = 0x04;
1514	2028	break;
..	..	@@ -1524,8 +2038,40 @@
1524	2038	break;
1525	2039	}
1526	2040
	2041	+ max_link_rate = analogix_dp_parse_link_frequencies(dp);
	2042	+ if (max_link_rate && max_link_rate < drm_dp_bw_code_to_link_rate(video_info->max_link_rate))
	2043	+ video_info->max_link_rate = drm_dp_link_rate_to_bw_code(max_link_rate);
	2044	+
1527	2045	video_info->video_bist_enable =
1528	2046	of_property_read_bool(dp_node, "analogix,video-bist-enable");
	2047	+ video_info->force_stream_valid =
	2048	+ of_property_read_bool(dp_node, "analogix,force-stream-valid");
	2049	+
	2050	+ prop = of_find_property(dp_node, "data-lanes", &len);
	2051	+ if (!prop) {
	2052	+ video_info->lane_map[0] = 0;
	2053	+ video_info->lane_map[1] = 1;
	2054	+ video_info->lane_map[2] = 2;
	2055	+ video_info->lane_map[3] = 3;
	2056	+ DRM_DEV_DEBUG(dp->dev, "failed to find data lane mapping, using default\n");
	2057	+ return 0;
	2058	+ }
	2059	+
	2060	+ num_lanes = len / sizeof(u32);
	2061	+
	2062	+ if (num_lanes < 1 \|\| num_lanes > 4 \|\| num_lanes == 3) {
	2063	+ DRM_DEV_ERROR(dp->dev, "bad number of data lanes\n");
	2064	+ return -EINVAL;
	2065	+ }
	2066	+
	2067	+ video_info->max_lane_count = num_lanes;
	2068	+
	2069	+ ret = of_property_read_u32_array(dp_node, "data-lanes",
	2070	+ video_info->lane_map, num_lanes);
	2071	+ if (ret) {
	2072	+ DRM_DEV_ERROR(dp->dev, "failed to read lane data\n");
	2073	+ return ret;
	2074	+ }
1529	2075
1530	2076	return 0;
1531	2077	}
..	..	@@ -1534,8 +2080,19 @@
1534	2080	struct drm_dp_aux_msg *msg)
1535	2081	{
1536	2082	struct analogix_dp_device *dp = to_dp(aux);
	2083	+ int ret;
1537	2084
1538		- return analogix_dp_transfer(dp, msg);
	2085	+ pm_runtime_get_sync(dp->dev);
	2086	+
	2087	+ ret = analogix_dp_detect_hpd(dp);
	2088	+ if (ret)
	2089	+ goto out;
	2090	+
	2091	+ ret = analogix_dp_transfer(dp, msg);
	2092	+out:
	2093	+ pm_runtime_put(dp->dev);
	2094	+
	2095	+ return ret;
1539	2096	}
1540	2097
1541	2098	int analogix_dp_audio_hw_params(struct analogix_dp_device *dp,
..	..	@@ -1580,9 +2137,70 @@
1580	2137	}
1581	2138	EXPORT_SYMBOL_GPL(analogix_dp_audio_get_eld);
1582	2139
	2140	+static void analogix_dp_link_train_restore(struct analogix_dp_device *dp)
	2141	+{
	2142	+ u32 link_rate, lane_count;
	2143	+ u8 lane, spread;
	2144	+
	2145	+ analogix_dp_get_link_bandwidth(dp, &link_rate);
	2146	+ analogix_dp_get_lane_count(dp, &lane_count);
	2147	+ drm_dp_dpcd_readb(&dp->aux, DP_MAX_DOWNSPREAD, &spread);
	2148	+
	2149	+ dp->link_train.link_rate = link_rate;
	2150	+ dp->link_train.lane_count = lane_count;
	2151	+ dp->link_train.enhanced_framing = analogix_dp_get_enhanced_mode(dp);
	2152	+ dp->link_train.ssc = !!(spread & DP_MAX_DOWNSPREAD_0_5);
	2153	+
	2154	+ for (lane = 0; lane < 4; lane++)
	2155	+ dp->link_train.training_lane[lane] =
	2156	+ analogix_dp_get_lane_link_training(dp, lane);
	2157	+}
	2158	+
	2159	+int analogix_dp_loader_protect(struct analogix_dp_device *dp)
	2160	+{
	2161	+ u8 link_status[DP_LINK_STATUS_SIZE];
	2162	+ int ret;
	2163	+
	2164	+ ret = analogix_dp_phy_power_on(dp);
	2165	+ if (ret)
	2166	+ return ret;
	2167	+
	2168	+ dp->dpms_mode = DRM_MODE_DPMS_ON;
	2169	+
	2170	+ analogix_dp_link_train_restore(dp);
	2171	+
	2172	+ ret = analogix_dp_fast_link_train_detection(dp);
	2173	+ if (ret)
	2174	+ goto err_disable;
	2175	+
	2176	+ if (analogix_dp_detect_sink_psr(dp)) {
	2177	+ ret = analogix_dp_enable_sink_psr(dp);
	2178	+ if (ret)
	2179	+ goto err_disable;
	2180	+ }
	2181	+
	2182	+ ret = drm_dp_dpcd_read_link_status(&dp->aux, link_status);
	2183	+ if (ret < 0) {
	2184	+ dev_err(dp->dev, "Failed to read link status\n");
	2185	+ goto err_disable;
	2186	+ }
	2187	+
	2188	+ if (!drm_dp_channel_eq_ok(link_status, dp->link_train.lane_count)) {
	2189	+ dev_err(dp->dev, "Channel EQ or CR not ok\n");
	2190	+ ret = -EINVAL;
	2191	+ goto err_disable;
	2192	+ }
	2193	+
	2194	+ return 0;
	2195	+
	2196	+err_disable:
	2197	+ analogix_dp_disable(dp);
	2198	+ return ret;
	2199	+}
	2200	+EXPORT_SYMBOL_GPL(analogix_dp_loader_protect);
	2201	+
1583	2202	struct analogix_dp_device *
1584		-analogix_dp_bind(struct device dev, struct drm_device drm_dev,
1585		- struct analogix_dp_plat_data *plat_data)
	2203	+analogix_dp_probe(struct device dev, struct analogix_dp_plat_data plat_data)
1586	2204	{
1587	2205	struct platform_device *pdev = to_platform_device(dev);
1588	2206	struct analogix_dp_device *dp;
..	..	@@ -1600,6 +2218,7 @@
1600	2218
1601	2219	dp->dev = &pdev->dev;
1602	2220	dp->dpms_mode = DRM_MODE_DPMS_OFF;
	2221	+ INIT_WORK(&dp->modeset_retry_work, analogix_dp_modeset_retry_work_fn);
1603	2222
1604	2223	mutex_init(&dp->panel_lock);
1605	2224	dp->panel_is_prepared = false;
..	..	@@ -1631,6 +2250,14 @@
1631	2250	}
1632	2251	}
1633	2252
	2253	+ ret = devm_clk_bulk_get_all(dev, &dp->clks);
	2254	+ if (ret < 0) {
	2255	+ dev_err(dev, "failed to get clocks %d\n", ret);
	2256	+ return ERR_PTR(ret);
	2257	+ }
	2258	+
	2259	+ dp->nr_clks = ret;
	2260	+
1634	2261	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1635	2262
1636	2263	dp->reg_base = devm_ioremap_resource(&pdev->dev, res);
..	..	@@ -1651,11 +2278,9 @@
1651	2278	}
1652	2279
1653	2280	if (dp->hpd_gpiod) {
1654		- dp->hpd_irq = gpiod_to_irq(dp->hpd_gpiod);
1655		- if (dp->hpd_irq < 0)
1656		- return ERR_PTR(-EINVAL);
1657		-
1658		- ret = devm_request_threaded_irq(dev, dp->hpd_irq, NULL,
	2281	+ ret = devm_request_threaded_irq(dev,
	2282	+ gpiod_to_irq(dp->hpd_gpiod),
	2283	+ NULL,
1659	2284	analogix_dp_hpd_irq_handler,
1660	2285	IRQF_TRIGGER_RISING \|
1661	2286	IRQF_TRIGGER_FALLING \|
..	..	@@ -1674,71 +2299,91 @@
1674	2299	}
1675	2300
1676	2301	irq_set_status_flags(dp->irq, IRQ_NOAUTOEN);
1677		- ret = devm_request_threaded_irq(&pdev->dev, dp->irq,
1678		- analogix_dp_hardirq,
	2302	+ ret = devm_request_threaded_irq(dev, dp->irq, NULL,
1679	2303	analogix_dp_irq_thread,
1680		- 0, "analogix-dp", dp);
	2304	+ IRQF_ONESHOT, dev_name(dev), dp);
1681	2305	if (ret) {
1682	2306	dev_err(&pdev->dev, "failed to request irq\n");
1683		- goto err_disable_pm_runtime;
	2307	+ return ERR_PTR(ret);
1684	2308	}
	2309	+
	2310	+ dp->extcon = devm_extcon_dev_allocate(dev, analogix_dp_cable);
	2311	+ if (IS_ERR(dp->extcon)) {
	2312	+ dev_err(dev, "failed to allocate extcon device\n");
	2313	+ return ERR_CAST(dp->extcon);
	2314	+ }
	2315	+
	2316	+ ret = devm_extcon_dev_register(dev, dp->extcon);
	2317	+ if (ret) {
	2318	+ dev_err(dev, "failed to register extcon device\n");
	2319	+ return ERR_PTR(ret);
	2320	+ }
	2321	+
	2322	+ dp->bridge.driver_private = dp;
	2323	+ dp->bridge.funcs = &analogix_dp_bridge_funcs;
	2324	+
	2325	+ return dp;
	2326	+}
	2327	+EXPORT_SYMBOL_GPL(analogix_dp_probe);
	2328	+
	2329	+int analogix_dp_bind(struct analogix_dp_device dp, struct drm_device drm_dev)
	2330	+{
	2331	+ int ret;
1685	2332
1686	2333	dp->drm_dev = drm_dev;
1687	2334	dp->encoder = dp->plat_data->encoder;
1688	2335
1689	2336	dp->aux.name = "DP-AUX";
1690	2337	dp->aux.transfer = analogix_dpaux_transfer;
1691		- dp->aux.dev = &pdev->dev;
	2338	+ dp->aux.dev = dp->dev;
1692	2339
1693	2340	ret = drm_dp_aux_register(&dp->aux);
1694	2341	if (ret)
1695		- return ERR_PTR(ret);
	2342	+ return ret;
1696	2343
1697		- pm_runtime_enable(dev);
	2344	+ pm_runtime_enable(dp->dev);
	2345	+ pm_runtime_get_sync(dp->dev);
	2346	+ analogix_dp_init(dp);
1698	2347
1699		- ret = analogix_dp_create_bridge(drm_dev, dp);
	2348	+ ret = analogix_dp_bridge_init(dp);
1700	2349	if (ret) {
1701		- DRM_ERROR("failed to create bridge (%d)\n", ret);
	2350	+ DRM_ERROR("failed to init bridge (%d)\n", ret);
1702	2351	goto err_disable_pm_runtime;
1703	2352	}
1704	2353
1705		- return dp;
	2354	+ enable_irq(dp->irq);
	2355	+
	2356	+ return 0;
1706	2357
1707	2358	err_disable_pm_runtime:
	2359	+ pm_runtime_put(dp->dev);
	2360	+ pm_runtime_disable(dp->dev);
	2361	+ drm_dp_aux_unregister(&dp->aux);
1708	2362
1709		- pm_runtime_disable(dev);
1710		-
1711		- return ERR_PTR(ret);
	2363	+ return ret;
1712	2364	}
1713	2365	EXPORT_SYMBOL_GPL(analogix_dp_bind);
1714	2366
1715	2367	void analogix_dp_unbind(struct analogix_dp_device *dp)
1716	2368	{
1717		- analogix_dp_bridge_disable(dp->bridge);
1718		- dp->connector.funcs->destroy(&dp->connector);
1719		-
1720		- if (dp->plat_data->panel) {
1721		- if (drm_panel_unprepare(dp->plat_data->panel))
1722		- DRM_ERROR("failed to turnoff the panel\n");
1723		- if (drm_panel_detach(dp->plat_data->panel))
1724		- DRM_ERROR("failed to detach the panel\n");
1725		- }
1726		-
	2369	+ disable_irq(dp->irq);
	2370	+ if (dp->connector.funcs->destroy)
	2371	+ dp->connector.funcs->destroy(&dp->connector);
1727	2372	drm_dp_aux_unregister(&dp->aux);
	2373	+ pm_runtime_put(dp->dev);
1728	2374	pm_runtime_disable(dp->dev);
1729	2375	}
1730	2376	EXPORT_SYMBOL_GPL(analogix_dp_unbind);
1731	2377
1732		-#ifdef CONFIG_PM
	2378	+void analogix_dp_remove(struct analogix_dp_device *dp)
	2379	+{
	2380	+ cancel_work_sync(&dp->modeset_retry_work);
	2381	+}
	2382	+EXPORT_SYMBOL_GPL(analogix_dp_remove);
	2383	+
1733	2384	int analogix_dp_suspend(struct analogix_dp_device *dp)
1734	2385	{
1735		- if (dp->hpd_gpiod)
1736		- disable_irq(dp->hpd_irq);
1737		-
1738		- if (dp->plat_data->panel) {
1739		- if (drm_panel_unprepare(dp->plat_data->panel))
1740		- DRM_ERROR("failed to turnoff the panel\n");
1741		- }
	2386	+ pm_runtime_force_suspend(dp->dev);
1742	2387
1743	2388	return 0;
1744	2389	}
..	..	@@ -1746,20 +2391,26 @@
1746	2391
1747	2392	int analogix_dp_resume(struct analogix_dp_device *dp)
1748	2393	{
1749		- if (dp->plat_data->panel) {
1750		- if (drm_panel_prepare(dp->plat_data->panel)) {
1751		- DRM_ERROR("failed to setup the panel\n");
1752		- return -EBUSY;
1753		- }
1754		- }
1755		-
1756		- if (dp->hpd_gpiod)
1757		- enable_irq(dp->hpd_irq);
	2394	+ pm_runtime_force_resume(dp->dev);
	2395	+ analogix_dp_init(dp);
1758	2396
1759	2397	return 0;
1760	2398	}
1761	2399	EXPORT_SYMBOL_GPL(analogix_dp_resume);
1762		-#endif
	2400	+
	2401	+int analogix_dp_runtime_suspend(struct analogix_dp_device *dp)
	2402	+{
	2403	+ clk_bulk_disable_unprepare(dp->nr_clks, dp->clks);
	2404	+
	2405	+ return 0;
	2406	+}
	2407	+EXPORT_SYMBOL_GPL(analogix_dp_runtime_suspend);
	2408	+
	2409	+int analogix_dp_runtime_resume(struct analogix_dp_device *dp)
	2410	+{
	2411	+ return clk_bulk_prepare_enable(dp->nr_clks, dp->clks);
	2412	+}
	2413	+EXPORT_SYMBOL_GPL(analogix_dp_runtime_resume);
1763	2414
1764	2415	int analogix_dp_start_crc(struct drm_connector *connector)
1765	2416	{