2 * Copyright (C) 2013, NVIDIA Corporation. All rights reserved.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sub license,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the
12 * next paragraph) shall be included in all copies or substantial portions
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
24 #include <linux/debugfs.h>
25 #include <linux/delay.h>
26 #include <linux/gpio/consumer.h>
27 #include <linux/iopoll.h>
28 #include <linux/module.h>
29 #include <linux/of_platform.h>
30 #include <linux/platform_device.h>
31 #include <linux/pm_runtime.h>
32 #include <linux/regulator/consumer.h>
34 #include <video/display_timing.h>
35 #include <video/of_display_timing.h>
36 #include <video/videomode.h>
38 #include <drm/display/drm_dp_aux_bus.h>
39 #include <drm/display/drm_dp_helper.h>
40 #include <drm/drm_crtc.h>
41 #include <drm/drm_device.h>
42 #include <drm/drm_panel.h>
45 * struct panel_delay - Describes delays for a simple panel.
49 * @hpd_reliable: Time for HPD to be reliable
51 * The time (in milliseconds) that it takes after powering the panel
52 * before the HPD signal is reliable. Ideally this is 0 but some panels,
53 * board designs, or bad pulldown configs can cause a glitch here.
55 * NOTE: on some old panel data this number appers to be much too big.
56 * Presumably some old panels simply didn't have HPD hooked up and put
57 * the hpd_absent here because this field predates the
58 * hpd_absent. While that works, it's non-ideal.
60 unsigned int hpd_reliable;
63 * @hpd_absent: Time to wait if HPD isn't hooked up.
65 * Add this to the prepare delay if we know Hot Plug Detect isn't used.
67 * This is T3-max on eDP timing diagrams or the delay from power on
68 * until HPD is guaranteed to be asserted.
70 unsigned int hpd_absent;
73 * @prepare_to_enable: Time between prepare and enable.
75 * The minimum time, in milliseconds, that needs to have passed
76 * between when prepare finished and enable may begin. If at
77 * enable time less time has passed since prepare finished,
78 * the driver waits for the remaining time.
80 * If a fixed enable delay is also specified, we'll start
81 * counting before delaying for the fixed delay.
83 * If a fixed prepare delay is also specified, we won't start
84 * counting until after the fixed delay. We can't overlap this
85 * fixed delay with the min time because the fixed delay
86 * doesn't happen at the end of the function if a HPD GPIO was
92 * // do fixed prepare delay
93 * // wait for HPD GPIO if applicable
94 * // start counting for prepare_to_enable
97 * // do fixed enable delay
98 * // enforce prepare_to_enable min time
100 * This is not specified in a standard way on eDP timing diagrams.
101 * It is effectively the time from HPD going high till you can
102 * turn on the backlight.
104 unsigned int prepare_to_enable;
107 * @enable: Time for the panel to display a valid frame.
109 * The time (in milliseconds) that it takes for the panel to
110 * display the first valid frame after starting to receive
113 * This is (T6-min + max(T7-max, T8-min)) on eDP timing diagrams or
114 * the delay after link training finishes until we can turn the
115 * backlight on and see valid data.
120 * @disable: Time for the panel to turn the display off.
122 * The time (in milliseconds) that it takes for the panel to
123 * turn the display off (no content is visible).
125 * This is T9-min (delay from backlight off to end of valid video
126 * data) on eDP timing diagrams. It is not common to set.
128 unsigned int disable;
131 * @unprepare: Time to power down completely.
133 * The time (in milliseconds) that it takes for the panel
134 * to power itself down completely.
136 * This time is used to prevent a future "prepare" from
137 * starting until at least this many milliseconds has passed.
138 * If at prepare time less time has passed since unprepare
139 * finished, the driver waits for the remaining time.
141 * This is T12-min on eDP timing diagrams.
143 unsigned int unprepare;
147 * struct panel_desc - Describes a simple panel.
151 * @modes: Pointer to array of fixed modes appropriate for this panel.
153 * If only one mode then this can just be the address of the mode.
154 * NOTE: cannot be used with "timings" and also if this is specified
155 * then you cannot override the mode in the device tree.
157 const struct drm_display_mode *modes;
159 /** @num_modes: Number of elements in modes array. */
160 unsigned int num_modes;
163 * @timings: Pointer to array of display timings
165 * NOTE: cannot be used with "modes" and also these will be used to
166 * validate a device tree override if one is present.
168 const struct display_timing *timings;
170 /** @num_timings: Number of elements in timings array. */
171 unsigned int num_timings;
173 /** @bpc: Bits per color. */
176 /** @size: Structure containing the physical size of this panel. */
179 * @size.width: Width (in mm) of the active display area.
184 * @size.height: Height (in mm) of the active display area.
189 /** @delay: Structure containing various delay values for this panel. */
190 struct panel_delay delay;
194 * struct edp_panel_entry - Maps panel ID to delay / panel name.
196 struct edp_panel_entry {
197 /** @panel_id: 32-bit ID for panel, encoded with drm_edid_encode_panel_id(). */
200 /** @delay: The power sequencing delays needed for this panel. */
201 const struct panel_delay *delay;
203 /** @name: Name of this panel (for printing to logs). */
208 struct drm_panel base;
214 ktime_t prepared_time;
215 ktime_t unprepared_time;
217 const struct panel_desc *desc;
219 struct regulator *supply;
220 struct i2c_adapter *ddc;
221 struct drm_dp_aux *aux;
223 struct gpio_desc *enable_gpio;
224 struct gpio_desc *hpd_gpio;
226 const struct edp_panel_entry *detected_panel;
230 struct drm_display_mode override_mode;
232 enum drm_panel_orientation orientation;
235 static inline struct panel_edp *to_panel_edp(struct drm_panel *panel)
237 return container_of(panel, struct panel_edp, base);
240 static unsigned int panel_edp_get_timings_modes(struct panel_edp *panel,
241 struct drm_connector *connector)
243 struct drm_display_mode *mode;
244 unsigned int i, num = 0;
246 for (i = 0; i < panel->desc->num_timings; i++) {
247 const struct display_timing *dt = &panel->desc->timings[i];
250 videomode_from_timing(dt, &vm);
251 mode = drm_mode_create(connector->dev);
253 dev_err(panel->base.dev, "failed to add mode %ux%u\n",
254 dt->hactive.typ, dt->vactive.typ);
258 drm_display_mode_from_videomode(&vm, mode);
260 mode->type |= DRM_MODE_TYPE_DRIVER;
262 if (panel->desc->num_timings == 1)
263 mode->type |= DRM_MODE_TYPE_PREFERRED;
265 drm_mode_probed_add(connector, mode);
272 static unsigned int panel_edp_get_display_modes(struct panel_edp *panel,
273 struct drm_connector *connector)
275 struct drm_display_mode *mode;
276 unsigned int i, num = 0;
278 for (i = 0; i < panel->desc->num_modes; i++) {
279 const struct drm_display_mode *m = &panel->desc->modes[i];
281 mode = drm_mode_duplicate(connector->dev, m);
283 dev_err(panel->base.dev, "failed to add mode %ux%u@%u\n",
284 m->hdisplay, m->vdisplay,
285 drm_mode_vrefresh(m));
289 mode->type |= DRM_MODE_TYPE_DRIVER;
291 if (panel->desc->num_modes == 1)
292 mode->type |= DRM_MODE_TYPE_PREFERRED;
294 drm_mode_set_name(mode);
296 drm_mode_probed_add(connector, mode);
303 static int panel_edp_get_non_edid_modes(struct panel_edp *panel,
304 struct drm_connector *connector)
306 struct drm_display_mode *mode;
307 bool has_override = panel->override_mode.type;
308 unsigned int num = 0;
314 mode = drm_mode_duplicate(connector->dev,
315 &panel->override_mode);
317 drm_mode_probed_add(connector, mode);
320 dev_err(panel->base.dev, "failed to add override mode\n");
324 /* Only add timings if override was not there or failed to validate */
325 if (num == 0 && panel->desc->num_timings)
326 num = panel_edp_get_timings_modes(panel, connector);
329 * Only add fixed modes if timings/override added no mode.
331 * We should only ever have either the display timings specified
332 * or a fixed mode. Anything else is rather bogus.
334 WARN_ON(panel->desc->num_timings && panel->desc->num_modes);
336 num = panel_edp_get_display_modes(panel, connector);
338 connector->display_info.bpc = panel->desc->bpc;
339 connector->display_info.width_mm = panel->desc->size.width;
340 connector->display_info.height_mm = panel->desc->size.height;
345 static void panel_edp_wait(ktime_t start_ktime, unsigned int min_ms)
347 ktime_t now_ktime, min_ktime;
352 min_ktime = ktime_add(start_ktime, ms_to_ktime(min_ms));
353 now_ktime = ktime_get();
355 if (ktime_before(now_ktime, min_ktime))
356 msleep(ktime_to_ms(ktime_sub(min_ktime, now_ktime)) + 1);
359 static int panel_edp_disable(struct drm_panel *panel)
361 struct panel_edp *p = to_panel_edp(panel);
366 if (p->desc->delay.disable)
367 msleep(p->desc->delay.disable);
374 static int panel_edp_suspend(struct device *dev)
376 struct panel_edp *p = dev_get_drvdata(dev);
378 gpiod_set_value_cansleep(p->enable_gpio, 0);
379 regulator_disable(p->supply);
380 p->unprepared_time = ktime_get();
385 static int panel_edp_unprepare(struct drm_panel *panel)
387 struct panel_edp *p = to_panel_edp(panel);
390 /* Unpreparing when already unprepared is a no-op */
394 pm_runtime_mark_last_busy(panel->dev);
395 ret = pm_runtime_put_autosuspend(panel->dev);
403 static int panel_edp_get_hpd_gpio(struct device *dev, struct panel_edp *p)
407 p->hpd_gpio = devm_gpiod_get_optional(dev, "hpd", GPIOD_IN);
408 if (IS_ERR(p->hpd_gpio)) {
409 err = PTR_ERR(p->hpd_gpio);
411 if (err != -EPROBE_DEFER)
412 dev_err(dev, "failed to get 'hpd' GPIO: %d\n", err);
420 static int panel_edp_prepare_once(struct panel_edp *p)
422 struct device *dev = p->base.dev;
426 unsigned long hpd_wait_us;
428 panel_edp_wait(p->unprepared_time, p->desc->delay.unprepare);
430 err = regulator_enable(p->supply);
432 dev_err(dev, "failed to enable supply: %d\n", err);
436 gpiod_set_value_cansleep(p->enable_gpio, 1);
438 delay = p->desc->delay.hpd_reliable;
440 delay = max(delay, p->desc->delay.hpd_absent);
445 if (p->desc->delay.hpd_absent)
446 hpd_wait_us = p->desc->delay.hpd_absent * 1000UL;
448 hpd_wait_us = 2000000;
450 err = readx_poll_timeout(gpiod_get_value_cansleep, p->hpd_gpio,
451 hpd_asserted, hpd_asserted,
453 if (hpd_asserted < 0)
457 if (err != -ETIMEDOUT)
459 "error waiting for hpd GPIO: %d\n", err);
464 p->prepared_time = ktime_get();
469 gpiod_set_value_cansleep(p->enable_gpio, 0);
470 regulator_disable(p->supply);
471 p->unprepared_time = ktime_get();
477 * Some panels simply don't always come up and need to be power cycled to
478 * work properly. We'll allow for a handful of retries.
480 #define MAX_PANEL_PREPARE_TRIES 5
482 static int panel_edp_resume(struct device *dev)
484 struct panel_edp *p = dev_get_drvdata(dev);
488 for (try = 0; try < MAX_PANEL_PREPARE_TRIES; try++) {
489 ret = panel_edp_prepare_once(p);
490 if (ret != -ETIMEDOUT)
494 if (ret == -ETIMEDOUT)
495 dev_err(dev, "Prepare timeout after %d tries\n", try);
497 dev_warn(dev, "Prepare needed %d retries\n", try);
502 static int panel_edp_prepare(struct drm_panel *panel)
504 struct panel_edp *p = to_panel_edp(panel);
507 /* Preparing when already prepared is a no-op */
511 ret = pm_runtime_get_sync(panel->dev);
513 pm_runtime_put_autosuspend(panel->dev);
522 static int panel_edp_enable(struct drm_panel *panel)
524 struct panel_edp *p = to_panel_edp(panel);
530 delay = p->desc->delay.enable;
533 * If there is a "prepare_to_enable" delay then that's supposed to be
534 * the delay from HPD going high until we can turn the backlight on.
535 * However, we can only count this if HPD is handled by the panel
536 * driver, not if it goes to a dedicated pin on the controller.
537 * If we aren't handling the HPD pin ourselves then the best we
538 * can do is assume that HPD went high immediately before we were
539 * called (and link training took zero time).
541 * NOTE: if we ever end up in this "if" statement then we're
542 * guaranteed that the panel_edp_wait() call below will do no delay.
543 * It already handles that case, though, so we don't need any special
546 if (p->desc->delay.prepare_to_enable && !p->hpd_gpio && !p->no_hpd)
547 delay = max(delay, p->desc->delay.prepare_to_enable);
552 panel_edp_wait(p->prepared_time, p->desc->delay.prepare_to_enable);
559 static int panel_edp_get_modes(struct drm_panel *panel,
560 struct drm_connector *connector)
562 struct panel_edp *p = to_panel_edp(panel);
565 /* probe EDID if a DDC bus is available */
567 pm_runtime_get_sync(panel->dev);
570 p->edid = drm_get_edid(connector, p->ddc);
573 num += drm_add_edid_modes(connector, p->edid);
575 pm_runtime_mark_last_busy(panel->dev);
576 pm_runtime_put_autosuspend(panel->dev);
580 * Add hard-coded panel modes. Don't call this if there are no timings
581 * and no modes (the generic edp-panel case) because it will clobber
582 * the display_info that was already set by drm_add_edid_modes().
584 if (p->desc->num_timings || p->desc->num_modes)
585 num += panel_edp_get_non_edid_modes(p, connector);
587 dev_warn(p->base.dev, "No display modes\n");
589 /* set up connector's "panel orientation" property */
590 drm_connector_set_panel_orientation(connector, p->orientation);
595 static int panel_edp_get_timings(struct drm_panel *panel,
596 unsigned int num_timings,
597 struct display_timing *timings)
599 struct panel_edp *p = to_panel_edp(panel);
602 if (p->desc->num_timings < num_timings)
603 num_timings = p->desc->num_timings;
606 for (i = 0; i < num_timings; i++)
607 timings[i] = p->desc->timings[i];
609 return p->desc->num_timings;
612 static int detected_panel_show(struct seq_file *s, void *data)
614 struct drm_panel *panel = s->private;
615 struct panel_edp *p = to_panel_edp(panel);
617 if (IS_ERR(p->detected_panel))
618 seq_puts(s, "UNKNOWN\n");
619 else if (!p->detected_panel)
620 seq_puts(s, "HARDCODED\n");
622 seq_printf(s, "%s\n", p->detected_panel->name);
627 DEFINE_SHOW_ATTRIBUTE(detected_panel);
629 static void panel_edp_debugfs_init(struct drm_panel *panel, struct dentry *root)
631 debugfs_create_file("detected_panel", 0600, root, panel, &detected_panel_fops);
634 static const struct drm_panel_funcs panel_edp_funcs = {
635 .disable = panel_edp_disable,
636 .unprepare = panel_edp_unprepare,
637 .prepare = panel_edp_prepare,
638 .enable = panel_edp_enable,
639 .get_modes = panel_edp_get_modes,
640 .get_timings = panel_edp_get_timings,
641 .debugfs_init = panel_edp_debugfs_init,
644 #define PANEL_EDP_BOUNDS_CHECK(to_check, bounds, field) \
645 (to_check->field.typ >= bounds->field.min && \
646 to_check->field.typ <= bounds->field.max)
647 static void panel_edp_parse_panel_timing_node(struct device *dev,
648 struct panel_edp *panel,
649 const struct display_timing *ot)
651 const struct panel_desc *desc = panel->desc;
655 if (WARN_ON(desc->num_modes)) {
656 dev_err(dev, "Reject override mode: panel has a fixed mode\n");
659 if (WARN_ON(!desc->num_timings)) {
660 dev_err(dev, "Reject override mode: no timings specified\n");
664 for (i = 0; i < panel->desc->num_timings; i++) {
665 const struct display_timing *dt = &panel->desc->timings[i];
667 if (!PANEL_EDP_BOUNDS_CHECK(ot, dt, hactive) ||
668 !PANEL_EDP_BOUNDS_CHECK(ot, dt, hfront_porch) ||
669 !PANEL_EDP_BOUNDS_CHECK(ot, dt, hback_porch) ||
670 !PANEL_EDP_BOUNDS_CHECK(ot, dt, hsync_len) ||
671 !PANEL_EDP_BOUNDS_CHECK(ot, dt, vactive) ||
672 !PANEL_EDP_BOUNDS_CHECK(ot, dt, vfront_porch) ||
673 !PANEL_EDP_BOUNDS_CHECK(ot, dt, vback_porch) ||
674 !PANEL_EDP_BOUNDS_CHECK(ot, dt, vsync_len))
677 if (ot->flags != dt->flags)
680 videomode_from_timing(ot, &vm);
681 drm_display_mode_from_videomode(&vm, &panel->override_mode);
682 panel->override_mode.type |= DRM_MODE_TYPE_DRIVER |
683 DRM_MODE_TYPE_PREFERRED;
687 if (WARN_ON(!panel->override_mode.type))
688 dev_err(dev, "Reject override mode: No display_timing found\n");
691 static const struct edp_panel_entry *find_edp_panel(u32 panel_id);
693 static int generic_edp_panel_probe(struct device *dev, struct panel_edp *panel)
695 struct panel_desc *desc;
703 desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
709 * Read the dts properties for the initial probe. These are used by
710 * the runtime resume code which will get called by the
711 * pm_runtime_get_sync() call below.
713 of_property_read_u32(dev->of_node, "hpd-reliable-delay-ms", &reliable_ms);
714 desc->delay.hpd_reliable = reliable_ms;
715 of_property_read_u32(dev->of_node, "hpd-absent-delay-ms", &absent_ms);
716 desc->delay.hpd_reliable = absent_ms;
718 /* Power the panel on so we can read the EDID */
719 ret = pm_runtime_get_sync(dev);
721 dev_err(dev, "Couldn't power on panel to read EDID: %d\n", ret);
725 panel_id = drm_edid_get_panel_id(panel->ddc);
727 dev_err(dev, "Couldn't identify panel via EDID\n");
731 drm_edid_decode_panel_id(panel_id, vend, &product_id);
733 panel->detected_panel = find_edp_panel(panel_id);
736 * We're using non-optimized timings and want it really obvious that
737 * someone needs to add an entry to the table, so we'll do a WARN_ON
740 if (WARN_ON(!panel->detected_panel)) {
742 "Unknown panel %s %#06x, using conservative timings\n",
746 * It's highly likely that the panel will work if we use very
747 * conservative timings, so let's do that. We already know that
748 * the HPD-related delays must have worked since we got this
749 * far, so we really just need the "unprepare" / "enable"
750 * delays. We don't need "prepare_to_enable" since that
751 * overlaps the "enable" delay anyway.
753 * Nearly all panels have a "unprepare" delay of 500 ms though
754 * there are a few with 1000. Let's stick 2000 in just to be
755 * super conservative.
757 * An "enable" delay of 80 ms seems the most common, but we'll
758 * throw in 200 ms to be safe.
760 desc->delay.unprepare = 2000;
761 desc->delay.enable = 200;
763 panel->detected_panel = ERR_PTR(-EINVAL);
765 dev_info(dev, "Detected %s %s (%#06x)\n",
766 vend, panel->detected_panel->name, product_id);
768 /* Update the delay; everything else comes from EDID */
769 desc->delay = *panel->detected_panel->delay;
774 pm_runtime_mark_last_busy(dev);
775 pm_runtime_put_autosuspend(dev);
780 static int panel_edp_probe(struct device *dev, const struct panel_desc *desc,
781 struct drm_dp_aux *aux)
783 struct panel_edp *panel;
784 struct display_timing dt;
785 struct device_node *ddc;
788 panel = devm_kzalloc(dev, sizeof(*panel), GFP_KERNEL);
792 panel->enabled = false;
793 panel->prepared_time = 0;
797 panel->no_hpd = of_property_read_bool(dev->of_node, "no-hpd");
798 if (!panel->no_hpd) {
799 err = panel_edp_get_hpd_gpio(dev, panel);
804 panel->supply = devm_regulator_get(dev, "power");
805 if (IS_ERR(panel->supply))
806 return PTR_ERR(panel->supply);
808 panel->enable_gpio = devm_gpiod_get_optional(dev, "enable",
810 if (IS_ERR(panel->enable_gpio)) {
811 err = PTR_ERR(panel->enable_gpio);
812 if (err != -EPROBE_DEFER)
813 dev_err(dev, "failed to request GPIO: %d\n", err);
817 err = of_drm_get_panel_orientation(dev->of_node, &panel->orientation);
819 dev_err(dev, "%pOF: failed to get orientation %d\n", dev->of_node, err);
823 ddc = of_parse_phandle(dev->of_node, "ddc-i2c-bus", 0);
825 panel->ddc = of_find_i2c_adapter_by_node(ddc);
829 return -EPROBE_DEFER;
831 panel->ddc = &aux->ddc;
834 if (!of_get_display_timing(dev->of_node, "panel-timing", &dt))
835 panel_edp_parse_panel_timing_node(dev, panel, &dt);
837 dev_set_drvdata(dev, panel);
839 drm_panel_init(&panel->base, dev, &panel_edp_funcs, DRM_MODE_CONNECTOR_eDP);
841 err = drm_panel_of_backlight(&panel->base);
843 goto err_finished_ddc_init;
846 * We use runtime PM for prepare / unprepare since those power the panel
847 * on and off and those can be very slow operations. This is important
848 * to optimize powering the panel on briefly to read the EDID before
849 * fully enabling the panel.
851 pm_runtime_enable(dev);
852 pm_runtime_set_autosuspend_delay(dev, 1000);
853 pm_runtime_use_autosuspend(dev);
855 if (of_device_is_compatible(dev->of_node, "edp-panel")) {
856 err = generic_edp_panel_probe(dev, panel);
858 dev_err_probe(dev, err,
859 "Couldn't detect panel nor find a fallback\n");
860 goto err_finished_pm_runtime;
862 /* generic_edp_panel_probe() replaces desc in the panel */
864 } else if (desc->bpc != 6 && desc->bpc != 8 && desc->bpc != 10) {
865 dev_warn(dev, "Expected bpc in {6,8,10} but got: %u\n", desc->bpc);
868 if (!panel->base.backlight && panel->aux) {
869 pm_runtime_get_sync(dev);
870 err = drm_panel_dp_aux_backlight(&panel->base, panel->aux);
871 pm_runtime_mark_last_busy(dev);
872 pm_runtime_put_autosuspend(dev);
874 goto err_finished_pm_runtime;
877 drm_panel_add(&panel->base);
881 err_finished_pm_runtime:
882 pm_runtime_dont_use_autosuspend(dev);
883 pm_runtime_disable(dev);
884 err_finished_ddc_init:
885 if (panel->ddc && (!panel->aux || panel->ddc != &panel->aux->ddc))
886 put_device(&panel->ddc->dev);
891 static int panel_edp_remove(struct device *dev)
893 struct panel_edp *panel = dev_get_drvdata(dev);
895 drm_panel_remove(&panel->base);
896 drm_panel_disable(&panel->base);
897 drm_panel_unprepare(&panel->base);
899 pm_runtime_dont_use_autosuspend(dev);
900 pm_runtime_disable(dev);
901 if (panel->ddc && (!panel->aux || panel->ddc != &panel->aux->ddc))
902 put_device(&panel->ddc->dev);
910 static void panel_edp_shutdown(struct device *dev)
912 struct panel_edp *panel = dev_get_drvdata(dev);
914 drm_panel_disable(&panel->base);
915 drm_panel_unprepare(&panel->base);
918 static const struct display_timing auo_b101ean01_timing = {
919 .pixelclock = { 65300000, 72500000, 75000000 },
920 .hactive = { 1280, 1280, 1280 },
921 .hfront_porch = { 18, 119, 119 },
922 .hback_porch = { 21, 21, 21 },
923 .hsync_len = { 32, 32, 32 },
924 .vactive = { 800, 800, 800 },
925 .vfront_porch = { 4, 4, 4 },
926 .vback_porch = { 8, 8, 8 },
927 .vsync_len = { 18, 20, 20 },
930 static const struct panel_desc auo_b101ean01 = {
931 .timings = &auo_b101ean01_timing,
940 static const struct drm_display_mode auo_b116xak01_mode = {
943 .hsync_start = 1366 + 48,
944 .hsync_end = 1366 + 48 + 32,
945 .htotal = 1366 + 48 + 32 + 10,
947 .vsync_start = 768 + 4,
948 .vsync_end = 768 + 4 + 6,
949 .vtotal = 768 + 4 + 6 + 15,
950 .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
953 static const struct panel_desc auo_b116xak01 = {
954 .modes = &auo_b116xak01_mode,
966 static const struct drm_display_mode auo_b116xw03_mode = {
969 .hsync_start = 1366 + 40,
970 .hsync_end = 1366 + 40 + 40,
971 .htotal = 1366 + 40 + 40 + 32,
973 .vsync_start = 768 + 10,
974 .vsync_end = 768 + 10 + 12,
975 .vtotal = 768 + 10 + 12 + 6,
976 .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
979 static const struct panel_desc auo_b116xw03 = {
980 .modes = &auo_b116xw03_mode,
992 static const struct drm_display_mode auo_b133han05_mode = {
995 .hsync_start = 1920 + 58,
996 .hsync_end = 1920 + 58 + 42,
997 .htotal = 1920 + 58 + 42 + 60,
999 .vsync_start = 1080 + 3,
1000 .vsync_end = 1080 + 3 + 5,
1001 .vtotal = 1080 + 3 + 5 + 54,
1004 static const struct panel_desc auo_b133han05 = {
1005 .modes = &auo_b133han05_mode,
1013 .hpd_reliable = 100,
1019 static const struct drm_display_mode auo_b133htn01_mode = {
1022 .hsync_start = 1920 + 172,
1023 .hsync_end = 1920 + 172 + 80,
1024 .htotal = 1920 + 172 + 80 + 60,
1026 .vsync_start = 1080 + 25,
1027 .vsync_end = 1080 + 25 + 10,
1028 .vtotal = 1080 + 25 + 10 + 10,
1031 static const struct panel_desc auo_b133htn01 = {
1032 .modes = &auo_b133htn01_mode,
1040 .hpd_reliable = 105,
1046 static const struct drm_display_mode auo_b133xtn01_mode = {
1049 .hsync_start = 1366 + 48,
1050 .hsync_end = 1366 + 48 + 32,
1051 .htotal = 1366 + 48 + 32 + 20,
1053 .vsync_start = 768 + 3,
1054 .vsync_end = 768 + 3 + 6,
1055 .vtotal = 768 + 3 + 6 + 13,
1058 static const struct panel_desc auo_b133xtn01 = {
1059 .modes = &auo_b133xtn01_mode,
1068 static const struct drm_display_mode auo_b140han06_mode = {
1071 .hsync_start = 1920 + 16,
1072 .hsync_end = 1920 + 16 + 16,
1073 .htotal = 1920 + 16 + 16 + 152,
1075 .vsync_start = 1080 + 3,
1076 .vsync_end = 1080 + 3 + 14,
1077 .vtotal = 1080 + 3 + 14 + 19,
1080 static const struct panel_desc auo_b140han06 = {
1081 .modes = &auo_b140han06_mode,
1089 .hpd_reliable = 100,
1095 static const struct drm_display_mode boe_nv101wxmn51_modes[] = {
1099 .hsync_start = 1280 + 48,
1100 .hsync_end = 1280 + 48 + 32,
1101 .htotal = 1280 + 48 + 32 + 80,
1103 .vsync_start = 800 + 3,
1104 .vsync_end = 800 + 3 + 5,
1105 .vtotal = 800 + 3 + 5 + 24,
1110 .hsync_start = 1280 + 48,
1111 .hsync_end = 1280 + 48 + 32,
1112 .htotal = 1280 + 48 + 32 + 80,
1114 .vsync_start = 800 + 3,
1115 .vsync_end = 800 + 3 + 5,
1116 .vtotal = 800 + 3 + 5 + 24,
1120 static const struct panel_desc boe_nv101wxmn51 = {
1121 .modes = boe_nv101wxmn51_modes,
1122 .num_modes = ARRAY_SIZE(boe_nv101wxmn51_modes),
1129 /* TODO: should be hpd-absent and no-hpd should be set? */
1130 .hpd_reliable = 210,
1136 static const struct drm_display_mode boe_nv110wtm_n61_modes[] = {
1140 .hsync_start = 2160 + 48,
1141 .hsync_end = 2160 + 48 + 32,
1142 .htotal = 2160 + 48 + 32 + 100,
1144 .vsync_start = 1440 + 3,
1145 .vsync_end = 1440 + 3 + 6,
1146 .vtotal = 1440 + 3 + 6 + 31,
1147 .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC,
1152 .hsync_start = 2160 + 48,
1153 .hsync_end = 2160 + 48 + 32,
1154 .htotal = 2160 + 48 + 32 + 100,
1156 .vsync_start = 1440 + 3,
1157 .vsync_end = 1440 + 3 + 6,
1158 .vtotal = 1440 + 3 + 6 + 31,
1159 .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC,
1163 static const struct panel_desc boe_nv110wtm_n61 = {
1164 .modes = boe_nv110wtm_n61_modes,
1165 .num_modes = ARRAY_SIZE(boe_nv110wtm_n61_modes),
1173 .prepare_to_enable = 80,
1179 /* Also used for boe_nv133fhm_n62 */
1180 static const struct drm_display_mode boe_nv133fhm_n61_modes = {
1183 .hsync_start = 1920 + 48,
1184 .hsync_end = 1920 + 48 + 32,
1185 .htotal = 1920 + 48 + 32 + 200,
1187 .vsync_start = 1080 + 3,
1188 .vsync_end = 1080 + 3 + 6,
1189 .vtotal = 1080 + 3 + 6 + 31,
1190 .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC,
1193 /* Also used for boe_nv133fhm_n62 */
1194 static const struct panel_desc boe_nv133fhm_n61 = {
1195 .modes = &boe_nv133fhm_n61_modes,
1204 * When power is first given to the panel there's a short
1205 * spike on the HPD line. It was explained that this spike
1206 * was until the TCON data download was complete. On
1207 * one system this was measured at 8 ms. We'll put 15 ms
1208 * in the prepare delay just to be safe. That means:
1209 * - If HPD isn't hooked up you still have 200 ms delay.
1210 * - If HPD is hooked up we won't try to look at it for the
1220 static const struct drm_display_mode boe_nv140fhmn49_modes[] = {
1224 .hsync_start = 1920 + 48,
1225 .hsync_end = 1920 + 48 + 32,
1228 .vsync_start = 1080 + 3,
1229 .vsync_end = 1080 + 3 + 5,
1234 static const struct panel_desc boe_nv140fhmn49 = {
1235 .modes = boe_nv140fhmn49_modes,
1236 .num_modes = ARRAY_SIZE(boe_nv140fhmn49_modes),
1243 /* TODO: should be hpd-absent and no-hpd should be set? */
1244 .hpd_reliable = 210,
1250 static const struct drm_display_mode innolux_n116bca_ea1_mode = {
1253 .hsync_start = 1366 + 136,
1254 .hsync_end = 1366 + 136 + 30,
1255 .htotal = 1366 + 136 + 30 + 60,
1257 .vsync_start = 768 + 8,
1258 .vsync_end = 768 + 8 + 12,
1259 .vtotal = 768 + 8 + 12 + 12,
1260 .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
1263 static const struct panel_desc innolux_n116bca_ea1 = {
1264 .modes = &innolux_n116bca_ea1_mode,
1273 .prepare_to_enable = 80,
1279 * Datasheet specifies that at 60 Hz refresh rate:
1280 * - total horizontal time: { 1506, 1592, 1716 }
1281 * - total vertical time: { 788, 800, 868 }
1283 * ...but doesn't go into exactly how that should be split into a front
1284 * porch, back porch, or sync length. For now we'll leave a single setting
1285 * here which allows a bit of tweaking of the pixel clock at the expense of
1288 static const struct display_timing innolux_n116bge_timing = {
1289 .pixelclock = { 72600000, 76420000, 80240000 },
1290 .hactive = { 1366, 1366, 1366 },
1291 .hfront_porch = { 136, 136, 136 },
1292 .hback_porch = { 60, 60, 60 },
1293 .hsync_len = { 30, 30, 30 },
1294 .vactive = { 768, 768, 768 },
1295 .vfront_porch = { 8, 8, 8 },
1296 .vback_porch = { 12, 12, 12 },
1297 .vsync_len = { 12, 12, 12 },
1298 .flags = DISPLAY_FLAGS_VSYNC_LOW | DISPLAY_FLAGS_HSYNC_LOW,
1301 static const struct panel_desc innolux_n116bge = {
1302 .timings = &innolux_n116bge_timing,
1311 static const struct drm_display_mode innolux_n125hce_gn1_mode = {
1314 .hsync_start = 1920 + 40,
1315 .hsync_end = 1920 + 40 + 40,
1316 .htotal = 1920 + 40 + 40 + 80,
1318 .vsync_start = 1080 + 4,
1319 .vsync_end = 1080 + 4 + 4,
1320 .vtotal = 1080 + 4 + 4 + 24,
1323 static const struct panel_desc innolux_n125hce_gn1 = {
1324 .modes = &innolux_n125hce_gn1_mode,
1333 static const struct drm_display_mode innolux_p120zdg_bf1_mode = {
1336 .hsync_start = 2160 + 48,
1337 .hsync_end = 2160 + 48 + 32,
1338 .htotal = 2160 + 48 + 32 + 80,
1340 .vsync_start = 1440 + 3,
1341 .vsync_end = 1440 + 3 + 10,
1342 .vtotal = 1440 + 3 + 10 + 27,
1343 .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC,
1346 static const struct panel_desc innolux_p120zdg_bf1 = {
1347 .modes = &innolux_p120zdg_bf1_mode,
1360 static const struct drm_display_mode ivo_m133nwf4_r0_mode = {
1363 .hsync_start = 1920 + 24,
1364 .hsync_end = 1920 + 24 + 48,
1365 .htotal = 1920 + 24 + 48 + 88,
1367 .vsync_start = 1080 + 3,
1368 .vsync_end = 1080 + 3 + 12,
1369 .vtotal = 1080 + 3 + 12 + 17,
1370 .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC,
1373 static const struct panel_desc ivo_m133nwf4_r0 = {
1374 .modes = &ivo_m133nwf4_r0_mode,
1387 static const struct drm_display_mode kingdisplay_kd116n21_30nv_a010_mode = {
1390 .hsync_start = 1366 + 40,
1391 .hsync_end = 1366 + 40 + 32,
1392 .htotal = 1366 + 40 + 32 + 62,
1394 .vsync_start = 768 + 5,
1395 .vsync_end = 768 + 5 + 5,
1396 .vtotal = 768 + 5 + 5 + 122,
1397 .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
1400 static const struct panel_desc kingdisplay_kd116n21_30nv_a010 = {
1401 .modes = &kingdisplay_kd116n21_30nv_a010_mode,
1413 static const struct drm_display_mode lg_lp079qx1_sp0v_mode = {
1416 .hsync_start = 1536 + 12,
1417 .hsync_end = 1536 + 12 + 16,
1418 .htotal = 1536 + 12 + 16 + 48,
1420 .vsync_start = 2048 + 8,
1421 .vsync_end = 2048 + 8 + 4,
1422 .vtotal = 2048 + 8 + 4 + 8,
1423 .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
1426 static const struct panel_desc lg_lp079qx1_sp0v = {
1427 .modes = &lg_lp079qx1_sp0v_mode,
1435 static const struct drm_display_mode lg_lp097qx1_spa1_mode = {
1438 .hsync_start = 2048 + 150,
1439 .hsync_end = 2048 + 150 + 5,
1440 .htotal = 2048 + 150 + 5 + 5,
1442 .vsync_start = 1536 + 3,
1443 .vsync_end = 1536 + 3 + 1,
1444 .vtotal = 1536 + 3 + 1 + 9,
1447 static const struct panel_desc lg_lp097qx1_spa1 = {
1448 .modes = &lg_lp097qx1_spa1_mode,
1456 static const struct drm_display_mode lg_lp120up1_mode = {
1459 .hsync_start = 1920 + 40,
1460 .hsync_end = 1920 + 40 + 40,
1461 .htotal = 1920 + 40 + 40 + 80,
1463 .vsync_start = 1280 + 4,
1464 .vsync_end = 1280 + 4 + 4,
1465 .vtotal = 1280 + 4 + 4 + 12,
1468 static const struct panel_desc lg_lp120up1 = {
1469 .modes = &lg_lp120up1_mode,
1478 static const struct drm_display_mode lg_lp129qe_mode = {
1481 .hsync_start = 2560 + 48,
1482 .hsync_end = 2560 + 48 + 32,
1483 .htotal = 2560 + 48 + 32 + 80,
1485 .vsync_start = 1700 + 3,
1486 .vsync_end = 1700 + 3 + 10,
1487 .vtotal = 1700 + 3 + 10 + 36,
1490 static const struct panel_desc lg_lp129qe = {
1491 .modes = &lg_lp129qe_mode,
1500 static const struct drm_display_mode neweast_wjfh116008a_modes[] = {
1504 .hsync_start = 1920 + 48,
1505 .hsync_end = 1920 + 48 + 32,
1506 .htotal = 1920 + 48 + 32 + 80,
1508 .vsync_start = 1080 + 3,
1509 .vsync_end = 1080 + 3 + 5,
1510 .vtotal = 1080 + 3 + 5 + 23,
1511 .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
1515 .hsync_start = 1920 + 48,
1516 .hsync_end = 1920 + 48 + 32,
1517 .htotal = 1920 + 48 + 32 + 80,
1519 .vsync_start = 1080 + 3,
1520 .vsync_end = 1080 + 3 + 5,
1521 .vtotal = 1080 + 3 + 5 + 23,
1522 .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
1526 static const struct panel_desc neweast_wjfh116008a = {
1527 .modes = neweast_wjfh116008a_modes,
1535 .hpd_reliable = 110,
1541 static const struct drm_display_mode samsung_lsn122dl01_c01_mode = {
1544 .hsync_start = 2560 + 48,
1545 .hsync_end = 2560 + 48 + 32,
1546 .htotal = 2560 + 48 + 32 + 80,
1548 .vsync_start = 1600 + 2,
1549 .vsync_end = 1600 + 2 + 5,
1550 .vtotal = 1600 + 2 + 5 + 57,
1553 static const struct panel_desc samsung_lsn122dl01_c01 = {
1554 .modes = &samsung_lsn122dl01_c01_mode,
1562 static const struct drm_display_mode samsung_ltn140at29_301_mode = {
1565 .hsync_start = 1366 + 64,
1566 .hsync_end = 1366 + 64 + 48,
1567 .htotal = 1366 + 64 + 48 + 128,
1569 .vsync_start = 768 + 2,
1570 .vsync_end = 768 + 2 + 5,
1571 .vtotal = 768 + 2 + 5 + 17,
1574 static const struct panel_desc samsung_ltn140at29_301 = {
1575 .modes = &samsung_ltn140at29_301_mode,
1584 static const struct drm_display_mode sharp_ld_d5116z01b_mode = {
1587 .hsync_start = 1920 + 48,
1588 .hsync_end = 1920 + 48 + 32,
1589 .htotal = 1920 + 48 + 32 + 80,
1591 .vsync_start = 1280 + 3,
1592 .vsync_end = 1280 + 3 + 10,
1593 .vtotal = 1280 + 3 + 10 + 57,
1594 .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC,
1597 static const struct panel_desc sharp_ld_d5116z01b = {
1598 .modes = &sharp_ld_d5116z01b_mode,
1607 static const struct display_timing sharp_lq123p1jx31_timing = {
1608 .pixelclock = { 252750000, 252750000, 266604720 },
1609 .hactive = { 2400, 2400, 2400 },
1610 .hfront_porch = { 48, 48, 48 },
1611 .hback_porch = { 80, 80, 84 },
1612 .hsync_len = { 32, 32, 32 },
1613 .vactive = { 1600, 1600, 1600 },
1614 .vfront_porch = { 3, 3, 3 },
1615 .vback_porch = { 33, 33, 120 },
1616 .vsync_len = { 10, 10, 10 },
1617 .flags = DISPLAY_FLAGS_VSYNC_LOW | DISPLAY_FLAGS_HSYNC_LOW,
1620 static const struct panel_desc sharp_lq123p1jx31 = {
1621 .timings = &sharp_lq123p1jx31_timing,
1629 .hpd_reliable = 110,
1635 static const struct drm_display_mode sharp_lq140m1jw46_mode[] = {
1639 .hsync_start = 1920 + 48,
1640 .hsync_end = 1920 + 48 + 32,
1641 .htotal = 1920 + 48 + 32 + 80,
1643 .vsync_start = 1080 + 3,
1644 .vsync_end = 1080 + 3 + 5,
1645 .vtotal = 1080 + 3 + 5 + 69,
1646 .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
1650 .hsync_start = 1920 + 48,
1651 .hsync_end = 1920 + 48 + 32,
1652 .htotal = 1920 + 48 + 32 + 80,
1654 .vsync_start = 1080 + 3,
1655 .vsync_end = 1080 + 3 + 5,
1656 .vtotal = 1080 + 3 + 5 + 69,
1657 .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
1661 static const struct panel_desc sharp_lq140m1jw46 = {
1662 .modes = sharp_lq140m1jw46_mode,
1663 .num_modes = ARRAY_SIZE(sharp_lq140m1jw46_mode),
1676 static const struct drm_display_mode starry_kr122ea0sra_mode = {
1679 .hsync_start = 1920 + 16,
1680 .hsync_end = 1920 + 16 + 16,
1681 .htotal = 1920 + 16 + 16 + 32,
1683 .vsync_start = 1200 + 15,
1684 .vsync_end = 1200 + 15 + 2,
1685 .vtotal = 1200 + 15 + 2 + 18,
1686 .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
1689 static const struct panel_desc starry_kr122ea0sra = {
1690 .modes = &starry_kr122ea0sra_mode,
1697 /* TODO: should be hpd-absent and no-hpd should be set? */
1698 .hpd_reliable = 10 + 200,
1700 .unprepare = 10 + 500,
1704 static const struct of_device_id platform_of_match[] = {
1707 .compatible = "edp-panel",
1709 .compatible = "auo,b101ean01",
1710 .data = &auo_b101ean01,
1712 .compatible = "auo,b116xa01",
1713 .data = &auo_b116xak01,
1715 .compatible = "auo,b116xw03",
1716 .data = &auo_b116xw03,
1718 .compatible = "auo,b133han05",
1719 .data = &auo_b133han05,
1721 .compatible = "auo,b133htn01",
1722 .data = &auo_b133htn01,
1724 .compatible = "auo,b133xtn01",
1725 .data = &auo_b133xtn01,
1727 .compatible = "auo,b140han06",
1728 .data = &auo_b140han06,
1730 .compatible = "boe,nv101wxmn51",
1731 .data = &boe_nv101wxmn51,
1733 .compatible = "boe,nv110wtm-n61",
1734 .data = &boe_nv110wtm_n61,
1736 .compatible = "boe,nv133fhm-n61",
1737 .data = &boe_nv133fhm_n61,
1739 .compatible = "boe,nv133fhm-n62",
1740 .data = &boe_nv133fhm_n61,
1742 .compatible = "boe,nv140fhmn49",
1743 .data = &boe_nv140fhmn49,
1745 .compatible = "innolux,n116bca-ea1",
1746 .data = &innolux_n116bca_ea1,
1748 .compatible = "innolux,n116bge",
1749 .data = &innolux_n116bge,
1751 .compatible = "innolux,n125hce-gn1",
1752 .data = &innolux_n125hce_gn1,
1754 .compatible = "innolux,p120zdg-bf1",
1755 .data = &innolux_p120zdg_bf1,
1757 .compatible = "ivo,m133nwf4-r0",
1758 .data = &ivo_m133nwf4_r0,
1760 .compatible = "kingdisplay,kd116n21-30nv-a010",
1761 .data = &kingdisplay_kd116n21_30nv_a010,
1763 .compatible = "lg,lp079qx1-sp0v",
1764 .data = &lg_lp079qx1_sp0v,
1766 .compatible = "lg,lp097qx1-spa1",
1767 .data = &lg_lp097qx1_spa1,
1769 .compatible = "lg,lp120up1",
1770 .data = &lg_lp120up1,
1772 .compatible = "lg,lp129qe",
1773 .data = &lg_lp129qe,
1775 .compatible = "neweast,wjfh116008a",
1776 .data = &neweast_wjfh116008a,
1778 .compatible = "samsung,lsn122dl01-c01",
1779 .data = &samsung_lsn122dl01_c01,
1781 .compatible = "samsung,ltn140at29-301",
1782 .data = &samsung_ltn140at29_301,
1784 .compatible = "sharp,ld-d5116z01b",
1785 .data = &sharp_ld_d5116z01b,
1787 .compatible = "sharp,lq123p1jx31",
1788 .data = &sharp_lq123p1jx31,
1790 .compatible = "sharp,lq140m1jw46",
1791 .data = &sharp_lq140m1jw46,
1793 .compatible = "starry,kr122ea0sra",
1794 .data = &starry_kr122ea0sra,
1799 MODULE_DEVICE_TABLE(of, platform_of_match);
1801 static const struct panel_delay delay_200_500_p2e80 = {
1804 .prepare_to_enable = 80,
1807 static const struct panel_delay delay_200_500_p2e100 = {
1810 .prepare_to_enable = 100,
1813 static const struct panel_delay delay_200_500_e50 = {
1819 static const struct panel_delay delay_200_500_e80_d50 = {
1826 static const struct panel_delay delay_100_500_e200 = {
1832 #define EDP_PANEL_ENTRY(vend_chr_0, vend_chr_1, vend_chr_2, product_id, _delay, _name) \
1835 .panel_id = drm_edid_encode_panel_id(vend_chr_0, vend_chr_1, vend_chr_2, \
1841 * This table is used to figure out power sequencing delays for panels that
1842 * are detected by EDID. Entries here may point to entries in the
1843 * platform_of_match table (if a panel is listed in both places).
1845 * Sort first by vendor, then by product ID.
1847 static const struct edp_panel_entry edp_panels[] = {
1848 EDP_PANEL_ENTRY('A', 'U', 'O', 0x405c, &auo_b116xak01.delay, "B116XAK01"),
1849 EDP_PANEL_ENTRY('A', 'U', 'O', 0x615c, &delay_200_500_e50, "B116XAN06.1"),
1850 EDP_PANEL_ENTRY('A', 'U', 'O', 0x8594, &delay_200_500_e50, "B133UAN01.0"),
1852 EDP_PANEL_ENTRY('B', 'O', 'E', 0x0786, &delay_200_500_p2e80, "NV116WHM-T01"),
1853 EDP_PANEL_ENTRY('B', 'O', 'E', 0x07d1, &boe_nv133fhm_n61.delay, "NV133FHM-N61"),
1854 EDP_PANEL_ENTRY('B', 'O', 'E', 0x082d, &boe_nv133fhm_n61.delay, "NV133FHM-N62"),
1855 EDP_PANEL_ENTRY('B', 'O', 'E', 0x098d, &boe_nv110wtm_n61.delay, "NV110WTM-N61"),
1856 EDP_PANEL_ENTRY('B', 'O', 'E', 0x0a5d, &delay_200_500_e50, "NV116WHM-N45"),
1858 EDP_PANEL_ENTRY('C', 'M', 'N', 0x114c, &innolux_n116bca_ea1.delay, "N116BCA-EA1"),
1860 EDP_PANEL_ENTRY('K', 'D', 'B', 0x0624, &kingdisplay_kd116n21_30nv_a010.delay, "116N21-30NV-A010"),
1861 EDP_PANEL_ENTRY('K', 'D', 'B', 0x1120, &delay_200_500_e80_d50, "116N29-30NK-C007"),
1863 EDP_PANEL_ENTRY('S', 'H', 'P', 0x1523, &sharp_lq140m1jw46.delay, "LQ140M1JW46"),
1864 EDP_PANEL_ENTRY('S', 'H', 'P', 0x154c, &delay_200_500_p2e100, "LQ116M1JW10"),
1866 EDP_PANEL_ENTRY('S', 'T', 'A', 0x0100, &delay_100_500_e200, "2081116HHD028001-51D"),
1871 static const struct edp_panel_entry *find_edp_panel(u32 panel_id)
1873 const struct edp_panel_entry *panel;
1878 for (panel = edp_panels; panel->panel_id; panel++)
1879 if (panel->panel_id == panel_id)
1885 static int panel_edp_platform_probe(struct platform_device *pdev)
1887 const struct of_device_id *id;
1889 /* Skip one since "edp-panel" is only supported on DP AUX bus */
1890 id = of_match_node(platform_of_match + 1, pdev->dev.of_node);
1894 return panel_edp_probe(&pdev->dev, id->data, NULL);
1897 static int panel_edp_platform_remove(struct platform_device *pdev)
1899 return panel_edp_remove(&pdev->dev);
1902 static void panel_edp_platform_shutdown(struct platform_device *pdev)
1904 panel_edp_shutdown(&pdev->dev);
1907 static const struct dev_pm_ops panel_edp_pm_ops = {
1908 SET_RUNTIME_PM_OPS(panel_edp_suspend, panel_edp_resume, NULL)
1909 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
1910 pm_runtime_force_resume)
1913 static struct platform_driver panel_edp_platform_driver = {
1915 .name = "panel-edp",
1916 .of_match_table = platform_of_match,
1917 .pm = &panel_edp_pm_ops,
1919 .probe = panel_edp_platform_probe,
1920 .remove = panel_edp_platform_remove,
1921 .shutdown = panel_edp_platform_shutdown,
1924 static int panel_edp_dp_aux_ep_probe(struct dp_aux_ep_device *aux_ep)
1926 const struct of_device_id *id;
1928 id = of_match_node(platform_of_match, aux_ep->dev.of_node);
1932 return panel_edp_probe(&aux_ep->dev, id->data, aux_ep->aux);
1935 static void panel_edp_dp_aux_ep_remove(struct dp_aux_ep_device *aux_ep)
1937 panel_edp_remove(&aux_ep->dev);
1940 static void panel_edp_dp_aux_ep_shutdown(struct dp_aux_ep_device *aux_ep)
1942 panel_edp_shutdown(&aux_ep->dev);
1945 static struct dp_aux_ep_driver panel_edp_dp_aux_ep_driver = {
1947 .name = "panel-simple-dp-aux",
1948 .of_match_table = platform_of_match, /* Same as platform one! */
1949 .pm = &panel_edp_pm_ops,
1951 .probe = panel_edp_dp_aux_ep_probe,
1952 .remove = panel_edp_dp_aux_ep_remove,
1953 .shutdown = panel_edp_dp_aux_ep_shutdown,
1956 static int __init panel_edp_init(void)
1960 err = platform_driver_register(&panel_edp_platform_driver);
1964 err = dp_aux_dp_driver_register(&panel_edp_dp_aux_ep_driver);
1966 goto err_did_platform_register;
1970 err_did_platform_register:
1971 platform_driver_unregister(&panel_edp_platform_driver);
1975 module_init(panel_edp_init);
1977 static void __exit panel_edp_exit(void)
1979 dp_aux_dp_driver_unregister(&panel_edp_dp_aux_ep_driver);
1980 platform_driver_unregister(&panel_edp_platform_driver);
1982 module_exit(panel_edp_exit);
1984 MODULE_AUTHOR("Thierry Reding <treding@nvidia.com>");
1985 MODULE_DESCRIPTION("DRM Driver for Simple eDP Panels");
1986 MODULE_LICENSE("GPL and additional rights");