/* * Copyright (C) 2013, NVIDIA Corporation. All rights reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sub license, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ #include <linux/debugfs.h> #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/iopoll.h> #include <linux/module.h> #include <linux/of_platform.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/regulator/consumer.h> #include <video/display_timing.h> #include <video/of_display_timing.h> #include <video/videomode.h> #include <drm/display/drm_dp_aux_bus.h> #include <drm/display/drm_dp_helper.h> #include <drm/drm_crtc.h> #include <drm/drm_device.h> #include <drm/drm_edid.h> #include <drm/drm_panel.h> /** * struct panel_delay - Describes delays for a simple panel. */ struct panel_delay { /** * @hpd_reliable: Time for HPD to be reliable * * The time (in milliseconds) that it takes after powering the panel * before the HPD signal is reliable. Ideally this is 0 but some panels, * board designs, or bad pulldown configs can cause a glitch here. * * NOTE: on some old panel data this number appears to be much too big. * Presumably some old panels simply didn't have HPD hooked up and put * the hpd_absent here because this field predates the * hpd_absent. While that works, it's non-ideal. */ unsigned int hpd_reliable; /** * @hpd_absent: Time to wait if HPD isn't hooked up. * * Add this to the prepare delay if we know Hot Plug Detect isn't used. * * This is T3-max on eDP timing diagrams or the delay from power on * until HPD is guaranteed to be asserted. */ unsigned int hpd_absent; /** * @prepare_to_enable: Time between prepare and enable. * * The minimum time, in milliseconds, that needs to have passed * between when prepare finished and enable may begin. If at * enable time less time has passed since prepare finished, * the driver waits for the remaining time. * * If a fixed enable delay is also specified, we'll start * counting before delaying for the fixed delay. * * If a fixed prepare delay is also specified, we won't start * counting until after the fixed delay. We can't overlap this * fixed delay with the min time because the fixed delay * doesn't happen at the end of the function if a HPD GPIO was * specified. * * In other words: * prepare() * ... * // do fixed prepare delay * // wait for HPD GPIO if applicable * // start counting for prepare_to_enable * * enable() * // do fixed enable delay * // enforce prepare_to_enable min time * * This is not specified in a standard way on eDP timing diagrams. * It is effectively the time from HPD going high till you can * turn on the backlight. */ unsigned int prepare_to_enable; /** * @enable: Time for the panel to display a valid frame. * * The time (in milliseconds) that it takes for the panel to * display the first valid frame after starting to receive * video data. * * This is (T6-min + max(T7-max, T8-min)) on eDP timing diagrams or * the delay after link training finishes until we can turn the * backlight on and see valid data. */ unsigned int enable; /** * @disable: Time for the panel to turn the display off. * * The time (in milliseconds) that it takes for the panel to * turn the display off (no content is visible). * * This is T9-min (delay from backlight off to end of valid video * data) on eDP timing diagrams. It is not common to set. */ unsigned int disable; /** * @unprepare: Time to power down completely. * * The time (in milliseconds) that it takes for the panel * to power itself down completely. * * This time is used to prevent a future "prepare" from * starting until at least this many milliseconds has passed. * If at prepare time less time has passed since unprepare * finished, the driver waits for the remaining time. * * This is T12-min on eDP timing diagrams. */ unsigned int unprepare; }; /** * struct panel_desc - Describes a simple panel. */ struct panel_desc { /** * @modes: Pointer to array of fixed modes appropriate for this panel. * * If only one mode then this can just be the address of the mode. * NOTE: cannot be used with "timings" and also if this is specified * then you cannot override the mode in the device tree. */ const struct drm_display_mode *modes; /** @num_modes: Number of elements in modes array. */ unsigned int num_modes; /** * @timings: Pointer to array of display timings * * NOTE: cannot be used with "modes" and also these will be used to * validate a device tree override if one is present. */ const struct display_timing *timings; /** @num_timings: Number of elements in timings array. */ unsigned int num_timings; /** @bpc: Bits per color. */ unsigned int bpc; /** @size: Structure containing the physical size of this panel. */ struct { /** * @size.width: Width (in mm) of the active display area. */ unsigned int width; /** * @size.height: Height (in mm) of the active display area. */ unsigned int height; } size; /** @delay: Structure containing various delay values for this panel. */ struct panel_delay delay; }; /** * struct edp_panel_entry - Maps panel ID to delay / panel name. */ struct edp_panel_entry { /** @panel_id: 32-bit ID for panel, encoded with drm_edid_encode_panel_id(). */ u32 panel_id; /** @delay: The power sequencing delays needed for this panel. */ const struct panel_delay *delay; /** @name: Name of this panel (for printing to logs). */ const char *name; }; struct panel_edp { struct drm_panel base; bool enabled; bool no_hpd; bool prepared; ktime_t prepared_time; ktime_t unprepared_time; const struct panel_desc *desc; struct regulator *supply; struct i2c_adapter *ddc; struct drm_dp_aux *aux; struct gpio_desc *enable_gpio; struct gpio_desc *hpd_gpio; const struct edp_panel_entry *detected_panel; struct edid *edid; struct drm_display_mode override_mode; enum drm_panel_orientation orientation; }; static inline struct panel_edp *to_panel_edp(struct drm_panel *panel) { return container_of(panel, struct panel_edp, base); } static unsigned int panel_edp_get_timings_modes(struct panel_edp *panel, struct drm_connector *connector) { struct drm_display_mode *mode; unsigned int i, num = 0; for (i = 0; i < panel->desc->num_timings; i++) { const struct display_timing *dt = &panel->desc->timings[i]; struct videomode vm; videomode_from_timing(dt, &vm); mode = drm_mode_create(connector->dev); if (!mode) { dev_err(panel->base.dev, "failed to add mode %ux%u\n", dt->hactive.typ, dt->vactive.typ); continue; } drm_display_mode_from_videomode(&vm, mode); mode->type |= DRM_MODE_TYPE_DRIVER; if (panel->desc->num_timings == 1) mode->type |= DRM_MODE_TYPE_PREFERRED; drm_mode_probed_add(connector, mode); num++; } return num; } static unsigned int panel_edp_get_display_modes(struct panel_edp *panel, struct drm_connector *connector) { struct drm_display_mode *mode; unsigned int i, num = 0; for (i = 0; i < panel->desc->num_modes; i++) { const struct drm_display_mode *m = &panel->desc->modes[i]; mode = drm_mode_duplicate(connector->dev, m); if (!mode) { dev_err(panel->base.dev, "failed to add mode %ux%u@%u\n", m->hdisplay, m->vdisplay, drm_mode_vrefresh(m)); continue; } mode->type |= DRM_MODE_TYPE_DRIVER; if (panel->desc->num_modes == 1) mode->type |= DRM_MODE_TYPE_PREFERRED; drm_mode_set_name(mode); drm_mode_probed_add(connector, mode); num++; } return num; } static int panel_edp_get_non_edid_modes(struct panel_edp *panel, struct drm_connector *connector) { struct drm_display_mode *mode; bool has_override = panel->override_mode.type; unsigned int num = 0; if (!panel->desc) return 0; if (has_override) { mode = drm_mode_duplicate(connector->dev, &panel->override_mode); if (mode) { drm_mode_probed_add(connector, mode); num = 1; } else { dev_err(panel->base.dev, "failed to add override mode\n"); } } /* Only add timings if override was not there or failed to validate */ if (num == 0 && panel->desc->num_timings) num = panel_edp_get_timings_modes(panel, connector); /* * Only add fixed modes if timings/override added no mode. * * We should only ever have either the display timings specified * or a fixed mode. Anything else is rather bogus. */ WARN_ON(panel->desc->num_timings && panel->desc->num_modes); if (num == 0) num = panel_edp_get_display_modes(panel, connector); connector->display_info.bpc = panel->desc->bpc; connector->display_info.width_mm = panel->desc->size.width; connector->display_info.height_mm = panel->desc->size.height; return num; } static void panel_edp_wait(ktime_t start_ktime, unsigned int min_ms) { ktime_t now_ktime, min_ktime; if (!min_ms) return; min_ktime = ktime_add(start_ktime, ms_to_ktime(min_ms)); now_ktime = ktime_get_boottime(); if (ktime_before(now_ktime, min_ktime)) msleep(ktime_to_ms(ktime_sub(min_ktime, now_ktime)) + 1); } static int panel_edp_disable(struct drm_panel *panel) { struct panel_edp *p = to_panel_edp(panel); if (!p->enabled) return 0; if (p->desc->delay.disable) msleep(p->desc->delay.disable); p->enabled = false; return 0; } static int panel_edp_suspend(struct device *dev) { struct panel_edp *p = dev_get_drvdata(dev); gpiod_set_value_cansleep(p->enable_gpio, 0); regulator_disable(p->supply); p->unprepared_time = ktime_get_boottime(); return 0; } static int panel_edp_unprepare(struct drm_panel *panel) { struct panel_edp *p = to_panel_edp(panel); int ret; /* Unpreparing when already unprepared is a no-op */ if (!p->prepared) return 0; pm_runtime_mark_last_busy(panel->dev); ret = pm_runtime_put_autosuspend(panel->dev); if (ret < 0) return ret; p->prepared = false; return 0; } static int panel_edp_get_hpd_gpio(struct device *dev, struct panel_edp *p) { p->hpd_gpio = devm_gpiod_get_optional(dev, "hpd", GPIOD_IN); if (IS_ERR(p->hpd_gpio)) return dev_err_probe(dev, PTR_ERR(p->hpd_gpio), "failed to get 'hpd' GPIO\n"); return 0; } static bool panel_edp_can_read_hpd(struct panel_edp *p) { return !p->no_hpd && (p->hpd_gpio || (p->aux && p->aux->wait_hpd_asserted)); } static int panel_edp_prepare_once(struct panel_edp *p) { struct device *dev = p->base.dev; unsigned int delay; int err; int hpd_asserted; unsigned long hpd_wait_us; panel_edp_wait(p->unprepared_time, p->desc->delay.unprepare); err = regulator_enable(p->supply); if (err < 0) { dev_err(dev, "failed to enable supply: %d\n", err); return err; } gpiod_set_value_cansleep(p->enable_gpio, 1); delay = p->desc->delay.hpd_reliable; if (p->no_hpd) delay = max(delay, p->desc->delay.hpd_absent); if (delay) msleep(delay); if (panel_edp_can_read_hpd(p)) { if (p->desc->delay.hpd_absent) hpd_wait_us = p->desc->delay.hpd_absent * 1000UL; else hpd_wait_us = 2000000; if (p->hpd_gpio) { err = readx_poll_timeout(gpiod_get_value_cansleep, p->hpd_gpio, hpd_asserted, hpd_asserted, 1000, hpd_wait_us); if (hpd_asserted < 0) err = hpd_asserted; } else { err = p->aux->wait_hpd_asserted(p->aux, hpd_wait_us); } if (err) { if (err != -ETIMEDOUT) dev_err(dev, "error waiting for hpd GPIO: %d\n", err); goto error; } } p->prepared_time = ktime_get_boottime(); return 0; error: gpiod_set_value_cansleep(p->enable_gpio, 0); regulator_disable(p->supply); p->unprepared_time = ktime_get_boottime(); return err; } /* * Some panels simply don't always come up and need to be power cycled to * work properly. We'll allow for a handful of retries. */ #define MAX_PANEL_PREPARE_TRIES 5 static int panel_edp_resume(struct device *dev) { struct panel_edp *p = dev_get_drvdata(dev); int ret; int try; for (try = 0; try < MAX_PANEL_PREPARE_TRIES; try++) { ret = panel_edp_prepare_once(p); if (ret != -ETIMEDOUT) break; } if (ret == -ETIMEDOUT) dev_err(dev, "Prepare timeout after %d tries\n", try); else if (try) dev_warn(dev, "Prepare needed %d retries\n", try); return ret; } static int panel_edp_prepare(struct drm_panel *panel) { struct panel_edp *p = to_panel_edp(panel); int ret; /* Preparing when already prepared is a no-op */ if (p->prepared) return 0; ret = pm_runtime_get_sync(panel->dev); if (ret < 0) { pm_runtime_put_autosuspend(panel->dev); return ret; } p->prepared = true; return 0; } static int panel_edp_enable(struct drm_panel *panel) { struct panel_edp *p = to_panel_edp(panel); unsigned int delay; if (p->enabled) return 0; delay = p->desc->delay.enable; /* * If there is a "prepare_to_enable" delay then that's supposed to be * the delay from HPD going high until we can turn the backlight on. * However, we can only count this if HPD is readable by the panel * driver. * * If we aren't handling the HPD pin ourselves then the best we * can do is assume that HPD went high immediately before we were * called (and link training took zero time). Note that "no-hpd" * actually counts as handling HPD ourselves since we're doing the * worst case delay (in prepare) ourselves. * * NOTE: if we ever end up in this "if" statement then we're * guaranteed that the panel_edp_wait() call below will do no delay. * It already handles that case, though, so we don't need any special * code for it. */ if (p->desc->delay.prepare_to_enable && !panel_edp_can_read_hpd(p) && !p->no_hpd) delay = max(delay, p->desc->delay.prepare_to_enable); if (delay) msleep(delay); panel_edp_wait(p->prepared_time, p->desc->delay.prepare_to_enable); p->enabled = true; return 0; } static int panel_edp_get_modes(struct drm_panel *panel, struct drm_connector *connector) { struct panel_edp *p = to_panel_edp(panel); int num = 0; /* probe EDID if a DDC bus is available */ if (p->ddc) { pm_runtime_get_sync(panel->dev); if (!p->edid) p->edid = drm_get_edid(connector, p->ddc); if (p->edid) num += drm_add_edid_modes(connector, p->edid); pm_runtime_mark_last_busy(panel->dev); pm_runtime_put_autosuspend(panel->dev); } /* * Add hard-coded panel modes. Don't call this if there are no timings * and no modes (the generic edp-panel case) because it will clobber * the display_info that was already set by drm_add_edid_modes(). */ if (p->desc->num_timings || p->desc->num_modes) num += panel_edp_get_non_edid_modes(p, connector); else if (!num) dev_warn(p->base.dev, "No display modes\n"); /* * TODO: Remove once all drm drivers call * drm_connector_set_orientation_from_panel() */ drm_connector_set_panel_orientation(connector, p->orientation); return num; } static int panel_edp_get_timings(struct drm_panel *panel, unsigned int num_timings, struct display_timing *timings) { struct panel_edp *p = to_panel_edp(panel); unsigned int i; if (p->desc->num_timings < num_timings) num_timings = p->desc->num_timings; if (timings) for (i = 0; i < num_timings; i++) timings[i] = p->desc->timings[i]; return p->desc->num_timings; } static enum drm_panel_orientation panel_edp_get_orientation(struct drm_panel *panel) { struct panel_edp *p = to_panel_edp(panel); return p->orientation; } static int detected_panel_show(struct seq_file *s, void *data) { struct drm_panel *panel = s->private; struct panel_edp *p = to_panel_edp(panel); if (IS_ERR(p->detected_panel)) seq_puts(s, "UNKNOWN\n"); else if (!p->detected_panel) seq_puts(s, "HARDCODED\n"); else seq_printf(s, "%s\n", p->detected_panel->name); return 0; } DEFINE_SHOW_ATTRIBUTE(detected_panel); static void panel_edp_debugfs_init(struct drm_panel *panel, struct dentry *root) { debugfs_create_file("detected_panel", 0600, root, panel, &detected_panel_fops); } static const struct drm_panel_funcs panel_edp_funcs = { .disable = panel_edp_disable, .unprepare = panel_edp_unprepare, .prepare = panel_edp_prepare, .enable = panel_edp_enable, .get_modes = panel_edp_get_modes, .get_orientation = panel_edp_get_orientation, .get_timings = panel_edp_get_timings, .debugfs_init = panel_edp_debugfs_init, }; #define PANEL_EDP_BOUNDS_CHECK(to_check, bounds, field) \ (to_check->field.typ >= bounds->field.min && \ to_check->field.typ <= bounds->field.max) static void panel_edp_parse_panel_timing_node(struct device *dev, struct panel_edp *panel, const struct display_timing *ot) { const struct panel_desc *desc = panel->desc; struct videomode vm; unsigned int i; if (WARN_ON(desc->num_modes)) { dev_err(dev, "Reject override mode: panel has a fixed mode\n"); return; } if (WARN_ON(!desc->num_timings)) { dev_err(dev, "Reject override mode: no timings specified\n"); return; } for (i = 0; i < panel->desc->num_timings; i++) { const struct display_timing *dt = &panel->desc->timings[i]; if (!PANEL_EDP_BOUNDS_CHECK(ot, dt, hactive) || !PANEL_EDP_BOUNDS_CHECK(ot, dt, hfront_porch) || !PANEL_EDP_BOUNDS_CHECK(ot, dt, hback_porch) || !PANEL_EDP_BOUNDS_CHECK(ot, dt, hsync_len) || !PANEL_EDP_BOUNDS_CHECK(ot, dt, vactive) || !PANEL_EDP_BOUNDS_CHECK(ot, dt, vfront_porch) || !PANEL_EDP_BOUNDS_CHECK(ot, dt, vback_porch) || !PANEL_EDP_BOUNDS_CHECK(ot, dt, vsync_len)) continue; if (ot->flags != dt->flags) continue; videomode_from_timing(ot, &vm); drm_display_mode_from_videomode(&vm, &panel->override_mode); panel->override_mode.type |= DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; break; } if (WARN_ON(!panel->override_mode.type)) dev_err(dev, "Reject override mode: No display_timing found\n"); } static const struct edp_panel_entry *find_edp_panel(u32 panel_id); static int generic_edp_panel_probe(struct device *dev, struct panel_edp *panel) { struct panel_desc *desc; u32 panel_id; char vend[4]; u16 product_id; u32 reliable_ms = 0; u32 absent_ms = 0; int ret; desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL); if (!desc) return -ENOMEM; panel->desc = desc; /* * Read the dts properties for the initial probe. These are used by * the runtime resume code which will get called by the * pm_runtime_get_sync() call below. */ of_property_read_u32(dev->of_node, "hpd-reliable-delay-ms", &reliable_ms); desc->delay.hpd_reliable = reliable_ms; of_property_read_u32(dev->of_node, "hpd-absent-delay-ms", &absent_ms); desc->delay.hpd_absent = absent_ms; /* Power the panel on so we can read the EDID */ ret = pm_runtime_get_sync(dev); if (ret < 0) { dev_err(dev, "Couldn't power on panel to read EDID: %d\n", ret); goto exit; } panel_id = drm_edid_get_panel_id(panel->ddc); if (!panel_id) { dev_err(dev, "Couldn't identify panel via EDID\n"); ret = -EIO; goto exit; } drm_edid_decode_panel_id(panel_id, vend, &product_id); panel->detected_panel = find_edp_panel(panel_id); /* * We're using non-optimized timings and want it really obvious that * someone needs to add an entry to the table, so we'll do a WARN_ON * splat. */ if (WARN_ON(!panel->detected_panel)) { dev_warn(dev, "Unknown panel %s %#06x, using conservative timings\n", vend, product_id); /* * It's highly likely that the panel will work if we use very * conservative timings, so let's do that. We already know that * the HPD-related delays must have worked since we got this * far, so we really just need the "unprepare" / "enable" * delays. We don't need "prepare_to_enable" since that * overlaps the "enable" delay anyway. * * Nearly all panels have a "unprepare" delay of 500 ms though * there are a few with 1000. Let's stick 2000 in just to be * super conservative. * * An "enable" delay of 80 ms seems the most common, but we'll * throw in 200 ms to be safe. */ desc->delay.unprepare = 2000; desc->delay.enable = 200; panel->detected_panel = ERR_PTR(-EINVAL); } else { dev_info(dev, "Detected %s %s (%#06x)\n", vend, panel->detected_panel->name, product_id); /* Update the delay; everything else comes from EDID */ desc->delay = *panel->detected_panel->delay; } ret = 0; exit: pm_runtime_mark_last_busy(dev); pm_runtime_put_autosuspend(dev); return ret; } static int panel_edp_probe(struct device *dev, const struct panel_desc *desc, struct drm_dp_aux *aux) { struct panel_edp *panel; struct display_timing dt; struct device_node *ddc; int err; panel = devm_kzalloc(dev, sizeof(*panel), GFP_KERNEL); if (!panel) return -ENOMEM; panel->enabled = false; panel->prepared_time = 0; panel->desc = desc; panel->aux = aux; panel->no_hpd = of_property_read_bool(dev->of_node, "no-hpd"); if (!panel->no_hpd) { err = panel_edp_get_hpd_gpio(dev, panel); if (err) return err; } panel->supply = devm_regulator_get(dev, "power"); if (IS_ERR(panel->supply)) return PTR_ERR(panel->supply); panel->enable_gpio = devm_gpiod_get_optional(dev, "enable", GPIOD_OUT_LOW); if (IS_ERR(panel->enable_gpio)) return dev_err_probe(dev, PTR_ERR(panel->enable_gpio), "failed to request GPIO\n"); err = of_drm_get_panel_orientation(dev->of_node, &panel->orientation); if (err) { dev_err(dev, "%pOF: failed to get orientation %d\n", dev->of_node, err); return err; } ddc = of_parse_phandle(dev->of_node, "ddc-i2c-bus", 0); if (ddc) { panel->ddc = of_find_i2c_adapter_by_node(ddc); of_node_put(ddc); if (!panel->ddc) return -EPROBE_DEFER; } else if (aux) { panel->ddc = &aux->ddc; } if (!of_get_display_timing(dev->of_node, "panel-timing", &dt)) panel_edp_parse_panel_timing_node(dev, panel, &dt); dev_set_drvdata(dev, panel); drm_panel_init(&panel->base, dev, &panel_edp_funcs, DRM_MODE_CONNECTOR_eDP); err = drm_panel_of_backlight(&panel->base); if (err) goto err_finished_ddc_init; /* * We use runtime PM for prepare / unprepare since those power the panel * on and off and those can be very slow operations. This is important * to optimize powering the panel on briefly to read the EDID before * fully enabling the panel. */ pm_runtime_enable(dev); pm_runtime_set_autosuspend_delay(dev, 1000); pm_runtime_use_autosuspend(dev); if (of_device_is_compatible(dev->of_node, "edp-panel")) { err = generic_edp_panel_probe(dev, panel); if (err) { dev_err_probe(dev, err, "Couldn't detect panel nor find a fallback\n"); goto err_finished_pm_runtime; } /* generic_edp_panel_probe() replaces desc in the panel */ desc = panel->desc; } else if (desc->bpc != 6 && desc->bpc != 8 && desc->bpc != 10) { dev_warn(dev, "Expected bpc in {6,8,10} but got: %u\n", desc->bpc); } if (!panel->base.backlight && panel->aux) { pm_runtime_get_sync(dev); err = drm_panel_dp_aux_backlight(&panel->base, panel->aux); pm_runtime_mark_last_busy(dev); pm_runtime_put_autosuspend(dev); if (err) goto err_finished_pm_runtime; } drm_panel_add(&panel->base); return 0; err_finished_pm_runtime: pm_runtime_dont_use_autosuspend(dev); pm_runtime_disable(dev); err_finished_ddc_init: if (panel->ddc && (!panel->aux || panel->ddc != &panel->aux->ddc)) put_device(&panel->ddc->dev); return err; } static void panel_edp_remove(struct device *dev) { struct panel_edp *panel = dev_get_drvdata(dev); drm_panel_remove(&panel->base); drm_panel_disable(&panel->base); drm_panel_unprepare(&panel->base); pm_runtime_dont_use_autosuspend(dev); pm_runtime_disable(dev); if (panel->ddc && (!panel->aux || panel->ddc != &panel->aux->ddc)) put_device(&panel->ddc->dev); kfree(panel->edid); panel->edid = NULL; } static void panel_edp_shutdown(struct device *dev) { struct panel_edp *panel = dev_get_drvdata(dev); drm_panel_disable(&panel->base); drm_panel_unprepare(&panel->base); } static const struct display_timing auo_b101ean01_timing = { .pixelclock = { 65300000, 72500000, 75000000 }, .hactive = { 1280, 1280, 1280 }, .hfront_porch = { 18, 119, 119 }, .hback_porch = { 21, 21, 21 }, .hsync_len = { 32, 32, 32 }, .vactive = { 800, 800, 800 }, .vfront_porch = { 4, 4, 4 }, .vback_porch = { 8, 8, 8 }, .vsync_len = { 18, 20, 20 }, }; static const struct panel_desc auo_b101ean01 = { .timings = &auo_b101ean01_timing, .num_timings = 1, .bpc = 6, .size = { .width = 217, .height = 136, }, }; static const struct drm_display_mode auo_b116xak01_mode = { .clock = 69300, .hdisplay = 1366, .hsync_start = 1366 + 48, .hsync_end = 1366 + 48 + 32, .htotal = 1366 + 48 + 32 + 10, .vdisplay = 768, .vsync_start = 768 + 4, .vsync_end = 768 + 4 + 6, .vtotal = 768 + 4 + 6 + 15, .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC, }; static const struct panel_desc auo_b116xak01 = { .modes = &auo_b116xak01_mode, .num_modes = 1, .bpc = 6, .size = { .width = 256, .height = 144, }, .delay = { .hpd_absent = 200, }, }; static const struct drm_display_mode auo_b116xw03_mode = { .clock = 70589, .hdisplay = 1366, .hsync_start = 1366 + 40, .hsync_end = 1366 + 40 + 40, .htotal = 1366 + 40 + 40 + 32, .vdisplay = 768, .vsync_start = 768 + 10, .vsync_end = 768 + 10 + 12, .vtotal = 768 + 10 + 12 + 6, .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC, }; static const struct panel_desc auo_b116xw03 = { .modes = &auo_b116xw03_mode, .num_modes = 1, .bpc = 6, .size = { .width = 256, .height = 144, }, .delay = { .enable = 400, }, }; static const struct drm_display_mode auo_b133han05_mode = { .clock = 142600, .hdisplay = 1920, .hsync_start = 1920 + 58, .hsync_end = 1920 + 58 + 42, .htotal = 1920 + 58 + 42 + 60, .vdisplay = 1080, .vsync_start = 1080 + 3, .vsync_end = 1080 + 3 + 5, .vtotal = 1080 + 3 + 5 + 54, }; static const struct panel_desc auo_b133han05 = { .modes = &auo_b133han05_mode, .num_modes = 1, .bpc = 8, .size = { .width = 293, .height = 165, }, .delay = { .hpd_reliable = 100, .enable = 20, .unprepare = 50, }, }; static const struct drm_display_mode auo_b133htn01_mode = { .clock = 150660, .hdisplay = 1920, .hsync_start = 1920 + 172, .hsync_end = 1920 + 172 + 80, .htotal = 1920 + 172 + 80 + 60, .vdisplay = 1080, .vsync_start = 1080 + 25, .vsync_end = 1080 + 25 + 10, .vtotal = 1080 + 25 + 10 + 10, }; static const struct panel_desc auo_b133htn01 = { .modes = &auo_b133htn01_mode, .num_modes = 1, .bpc = 6, .size = { .width = 293, .height = 165, }, .delay = { .hpd_reliable = 105, .enable = 20, .unprepare = 50, }, }; static const struct drm_display_mode auo_b133xtn01_mode = { .clock = 69500, .hdisplay = 1366, .hsync_start = 1366 + 48, .hsync_end = 1366 + 48 + 32, .htotal = 1366 + 48 + 32 + 20, .vdisplay = 768, .vsync_start = 768 + 3, .vsync_end = 768 + 3 + 6, .vtotal = 768 + 3 + 6 + 13, }; static const struct panel_desc auo_b133xtn01 = { .modes = &auo_b133xtn01_mode, .num_modes = 1, .bpc = 6, .size = { .width = 293, .height = 165, }, }; static const struct drm_display_mode auo_b140han06_mode = { .clock = 141000, .hdisplay = 1920, .hsync_start = 1920 + 16, .hsync_end = 1920 + 16 + 16, .htotal = 1920 + 16 + 16 + 152, .vdisplay = 1080, .vsync_start = 1080 + 3, .vsync_end = 1080 + 3 + 14, .vtotal = 1080 + 3 + 14 + 19, }; static const struct panel_desc auo_b140han06 = { .modes = &auo_b140han06_mode, .num_modes = 1, .bpc = 8, .size = { .width = 309, .height = 174, }, .delay = { .hpd_reliable = 100, .enable = 20, .unprepare = 50, }, }; static const struct drm_display_mode boe_nv101wxmn51_modes[] = { { .clock = 71900, .hdisplay = 1280, .hsync_start = 1280 + 48, .hsync_end = 1280 + 48 + 32, .htotal = 1280 + 48 + 32 + 80, .vdisplay = 800, .vsync_start = 800 + 3, .vsync_end = 800 + 3 + 5, .vtotal = 800 + 3 + 5 + 24, }, { .clock = 57500, .hdisplay = 1280, .hsync_start = 1280 + 48, .hsync_end = 1280 + 48 + 32, .htotal = 1280 + 48 + 32 + 80, .vdisplay = 800, .vsync_start = 800 + 3, .vsync_end = 800 + 3 + 5, .vtotal = 800 + 3 + 5 + 24, }, }; static const struct panel_desc boe_nv101wxmn51 = { .modes = boe_nv101wxmn51_modes, .num_modes = ARRAY_SIZE(boe_nv101wxmn51_modes), .bpc = 8, .size = { .width = 217, .height = 136, }, .delay = { /* TODO: should be hpd-absent and no-hpd should be set? */ .hpd_reliable = 210, .enable = 50, .unprepare = 160, }, }; static const struct drm_display_mode boe_nv110wtm_n61_modes[] = { { .clock = 207800, .hdisplay = 2160, .hsync_start = 2160 + 48, .hsync_end = 2160 + 48 + 32, .htotal = 2160 + 48 + 32 + 100, .vdisplay = 1440, .vsync_start = 1440 + 3, .vsync_end = 1440 + 3 + 6, .vtotal = 1440 + 3 + 6 + 31, .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC, }, { .clock = 138500, .hdisplay = 2160, .hsync_start = 2160 + 48, .hsync_end = 2160 + 48 + 32, .htotal = 2160 + 48 + 32 + 100, .vdisplay = 1440, .vsync_start = 1440 + 3, .vsync_end = 1440 + 3 + 6, .vtotal = 1440 + 3 + 6 + 31, .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC, }, }; static const struct panel_desc boe_nv110wtm_n61 = { .modes = boe_nv110wtm_n61_modes, .num_modes = ARRAY_SIZE(boe_nv110wtm_n61_modes), .bpc = 8, .size = { .width = 233, .height = 155, }, .delay = { .hpd_absent = 200, .prepare_to_enable = 80, .enable = 50, .unprepare = 500, }, }; /* Also used for boe_nv133fhm_n62 */ static const struct drm_display_mode boe_nv133fhm_n61_modes = { .clock = 147840, .hdisplay = 1920, .hsync_start = 1920 + 48, .hsync_end = 1920 + 48 + 32, .htotal = 1920 + 48 + 32 + 200, .vdisplay = 1080, .vsync_start = 1080 + 3, .vsync_end = 1080 + 3 + 6, .vtotal = 1080 + 3 + 6 + 31, .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC, }; /* Also used for boe_nv133fhm_n62 */ static const struct panel_desc boe_nv133fhm_n61 = { .modes = &boe_nv133fhm_n61_modes, .num_modes = 1, .bpc = 6, .size = { .width = 294, .height = 165, }, .delay = { /* * When power is first given to the panel there's a short * spike on the HPD line. It was explained that this spike * was until the TCON data download was complete. On * one system this was measured at 8 ms. We'll put 15 ms * in the prepare delay just to be safe. That means: * - If HPD isn't hooked up you still have 200 ms delay. * - If HPD is hooked up we won't try to look at it for the * first 15 ms. */ .hpd_reliable = 15, .hpd_absent = 200, .unprepare = 500, }, }; static const struct drm_display_mode boe_nv140fhmn49_modes[] = { { .clock = 148500, .hdisplay = 1920, .hsync_start = 1920 + 48, .hsync_end = 1920 + 48 + 32, .htotal = 2200, .vdisplay = 1080, .vsync_start = 1080 + 3, .vsync_end = 1080 + 3 + 5, .vtotal = 1125, }, }; static const struct panel_desc boe_nv140fhmn49 = { .modes = boe_nv140fhmn49_modes, .num_modes = ARRAY_SIZE(boe_nv140fhmn49_modes), .bpc = 6, .size = { .width = 309, .height = 174, }, .delay = { /* TODO: should be hpd-absent and no-hpd should be set? */ .hpd_reliable = 210, .enable = 50, .unprepare = 160, }, }; static const struct drm_display_mode innolux_n116bca_ea1_mode = { .clock = 76420, .hdisplay = 1366, .hsync_start = 1366 + 136, .hsync_end = 1366 + 136 + 30, .htotal = 1366 + 136 + 30 + 60, .vdisplay = 768, .vsync_start = 768 + 8, .vsync_end = 768 + 8 + 12, .vtotal = 768 + 8 + 12 + 12, .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC, }; static const struct panel_desc innolux_n116bca_ea1 = { .modes = &innolux_n116bca_ea1_mode, .num_modes = 1, .bpc = 6, .size = { .width = 256, .height = 144, }, .delay = { .hpd_absent = 200, .enable = 80, .disable = 50, .unprepare = 500, }, }; /* * Datasheet specifies that at 60 Hz refresh rate: * - total horizontal time: { 1506, 1592, 1716 } * - total vertical time: { 788, 800, 868 } * * ...but doesn't go into exactly how that should be split into a front * porch, back porch, or sync length. For now we'll leave a single setting * here which allows a bit of tweaking of the pixel clock at the expense of * refresh rate. */ static const struct display_timing innolux_n116bge_timing = { .pixelclock = { 72600000, 76420000, 80240000 }, .hactive = { 1366, 1366, 1366 }, .hfront_porch = { 136, 136, 136 }, .hback_porch = { 60, 60, 60 }, .hsync_len = { 30, 30, 30 }, .vactive = { 768, 768, 768 }, .vfront_porch = { 8, 8, 8 }, .vback_porch = { 12, 12, 12 }, .vsync_len = { 12, 12, 12 }, .flags = DISPLAY_FLAGS_VSYNC_LOW | DISPLAY_FLAGS_HSYNC_LOW, }; static const struct panel_desc innolux_n116bge = { .timings = &innolux_n116bge_timing, .num_timings = 1, .bpc = 6, .size = { .width = 256, .height = 144, }, }; static const struct drm_display_mode innolux_n125hce_gn1_mode = { .clock = 162000, .hdisplay = 1920, .hsync_start = 1920 + 40, .hsync_end = 1920 + 40 + 40, .htotal = 1920 + 40 + 40 + 80, .vdisplay = 1080, .vsync_start = 1080 + 4, .vsync_end = 1080 + 4 + 4, .vtotal = 1080 + 4 + 4 + 24, }; static const struct panel_desc innolux_n125hce_gn1 = { .modes = &innolux_n125hce_gn1_mode, .num_modes = 1, .bpc = 8, .size = { .width = 276, .height = 155, }, }; static const struct drm_display_mode innolux_p120zdg_bf1_mode = { .clock = 206016, .hdisplay = 2160, .hsync_start = 2160 + 48, .hsync_end = 2160 + 48 + 32, .htotal = 2160 + 48 + 32 + 80, .vdisplay = 1440, .vsync_start = 1440 + 3, .vsync_end = 1440 + 3 + 10, .vtotal = 1440 + 3 + 10 + 27, .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC, }; static const struct panel_desc innolux_p120zdg_bf1 = { .modes = &innolux_p120zdg_bf1_mode, .num_modes = 1, .bpc = 8, .size = { .width = 254, .height = 169, }, .delay = { .hpd_absent = 200, .unprepare = 500, }, }; static const struct drm_display_mode ivo_m133nwf4_r0_mode = { .clock = 138778, .hdisplay = 1920, .hsync_start = 1920 + 24, .hsync_end = 1920 + 24 + 48, .htotal = 1920 + 24 + 48 + 88, .vdisplay = 1080, .vsync_start = 1080 + 3, .vsync_end = 1080 + 3 + 12, .vtotal = 1080 + 3 + 12 + 17, .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC, }; static const struct panel_desc ivo_m133nwf4_r0 = { .modes = &ivo_m133nwf4_r0_mode, .num_modes = 1, .bpc = 8, .size = { .width = 294, .height = 165, }, .delay = { .hpd_absent = 200, .unprepare = 500, }, }; static const struct drm_display_mode kingdisplay_kd116n21_30nv_a010_mode = { .clock = 81000, .hdisplay = 1366, .hsync_start = 1366 + 40, .hsync_end = 1366 + 40 + 32, .htotal = 1366 + 40 + 32 + 62, .vdisplay = 768, .vsync_start = 768 + 5, .vsync_end = 768 + 5 + 5, .vtotal = 768 + 5 + 5 + 122, .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC, }; static const struct panel_desc kingdisplay_kd116n21_30nv_a010 = { .modes = &kingdisplay_kd116n21_30nv_a010_mode, .num_modes = 1, .bpc = 6, .size = { .width = 256, .height = 144, }, .delay = { .hpd_absent = 200, }, }; static const struct drm_display_mode lg_lp079qx1_sp0v_mode = { .clock = 200000, .hdisplay = 1536, .hsync_start = 1536 + 12, .hsync_end = 1536 + 12 + 16, .htotal = 1536 + 12 + 16 + 48, .vdisplay = 2048, .vsync_start = 2048 + 8, .vsync_end = 2048 + 8 + 4, .vtotal = 2048 + 8 + 4 + 8, .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC, }; static const struct panel_desc lg_lp079qx1_sp0v = { .modes = &lg_lp079qx1_sp0v_mode, .num_modes = 1, .size = { .width = 129, .height = 171, }, }; static const struct drm_display_mode lg_lp097qx1_spa1_mode = { .clock = 205210, .hdisplay = 2048, .hsync_start = 2048 + 150, .hsync_end = 2048 + 150 + 5, .htotal = 2048 + 150 + 5 + 5, .vdisplay = 1536, .vsync_start = 1536 + 3, .vsync_end = 1536 + 3 + 1, .vtotal = 1536 + 3 + 1 + 9, }; static const struct panel_desc lg_lp097qx1_spa1 = { .modes = &lg_lp097qx1_spa1_mode, .num_modes = 1, .size = { .width = 208, .height = 147, }, }; static const struct drm_display_mode lg_lp120up1_mode = { .clock = 162300, .hdisplay = 1920, .hsync_start = 1920 + 40, .hsync_end = 1920 + 40 + 40, .htotal = 1920 + 40 + 40 + 80, .vdisplay = 1280, .vsync_start = 1280 + 4, .vsync_end = 1280 + 4 + 4, .vtotal = 1280 + 4 + 4 + 12, }; static const struct panel_desc lg_lp120up1 = { .modes = &lg_lp120up1_mode, .num_modes = 1, .bpc = 8, .size = { .width = 267, .height = 183, }, }; static const struct drm_display_mode lg_lp129qe_mode = { .clock = 285250, .hdisplay = 2560, .hsync_start = 2560 + 48, .hsync_end = 2560 + 48 + 32, .htotal = 2560 + 48 + 32 + 80, .vdisplay = 1700, .vsync_start = 1700 + 3, .vsync_end = 1700 + 3 + 10, .vtotal = 1700 + 3 + 10 + 36, }; static const struct panel_desc lg_lp129qe = { .modes = &lg_lp129qe_mode, .num_modes = 1, .bpc = 8, .size = { .width = 272, .height = 181, }, }; static const struct drm_display_mode neweast_wjfh116008a_modes[] = { { .clock = 138500, .hdisplay = 1920, .hsync_start = 1920 + 48, .hsync_end = 1920 + 48 + 32, .htotal = 1920 + 48 + 32 + 80, .vdisplay = 1080, .vsync_start = 1080 + 3, .vsync_end = 1080 + 3 + 5, .vtotal = 1080 + 3 + 5 + 23, .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC, }, { .clock = 110920, .hdisplay = 1920, .hsync_start = 1920 + 48, .hsync_end = 1920 + 48 + 32, .htotal = 1920 + 48 + 32 + 80, .vdisplay = 1080, .vsync_start = 1080 + 3, .vsync_end = 1080 + 3 + 5, .vtotal = 1080 + 3 + 5 + 23, .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC, } }; static const struct panel_desc neweast_wjfh116008a = { .modes = neweast_wjfh116008a_modes, .num_modes = 2, .bpc = 6, .size = { .width = 260, .height = 150, }, .delay = { .hpd_reliable = 110, .enable = 20, .unprepare = 500, }, }; static const struct drm_display_mode samsung_lsn122dl01_c01_mode = { .clock = 271560, .hdisplay = 2560, .hsync_start = 2560 + 48, .hsync_end = 2560 + 48 + 32, .htotal = 2560 + 48 + 32 + 80, .vdisplay = 1600, .vsync_start = 1600 + 2, .vsync_end = 1600 + 2 + 5, .vtotal = 1600 + 2 + 5 + 57, }; static const struct panel_desc samsung_lsn122dl01_c01 = { .modes = &samsung_lsn122dl01_c01_mode, .num_modes = 1, .size = { .width = 263, .height = 164, }, }; static const struct drm_display_mode samsung_ltn140at29_301_mode = { .clock = 76300, .hdisplay = 1366, .hsync_start = 1366 + 64, .hsync_end = 1366 + 64 + 48, .htotal = 1366 + 64 + 48 + 128, .vdisplay = 768, .vsync_start = 768 + 2, .vsync_end = 768 + 2 + 5, .vtotal = 768 + 2 + 5 + 17, }; static const struct panel_desc samsung_ltn140at29_301 = { .modes = &samsung_ltn140at29_301_mode, .num_modes = 1, .bpc = 6, .size = { .width = 320, .height = 187, }, }; static const struct drm_display_mode sharp_ld_d5116z01b_mode = { .clock = 168480, .hdisplay = 1920, .hsync_start = 1920 + 48, .hsync_end = 1920 + 48 + 32, .htotal = 1920 + 48 + 32 + 80, .vdisplay = 1280, .vsync_start = 1280 + 3, .vsync_end = 1280 + 3 + 10, .vtotal = 1280 + 3 + 10 + 57, .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC, }; static const struct panel_desc sharp_ld_d5116z01b = { .modes = &sharp_ld_d5116z01b_mode, .num_modes = 1, .bpc = 8, .size = { .width = 260, .height = 120, }, }; static const struct display_timing sharp_lq123p1jx31_timing = { .pixelclock = { 252750000, 252750000, 266604720 }, .hactive = { 2400, 2400, 2400 }, .hfront_porch = { 48, 48, 48 }, .hback_porch = { 80, 80, 84 }, .hsync_len = { 32, 32, 32 }, .vactive = { 1600, 1600, 1600 }, .vfront_porch = { 3, 3, 3 }, .vback_porch = { 33, 33, 120 }, .vsync_len = { 10, 10, 10 }, .flags = DISPLAY_FLAGS_VSYNC_LOW | DISPLAY_FLAGS_HSYNC_LOW, }; static const struct panel_desc sharp_lq123p1jx31 = { .timings = &sharp_lq123p1jx31_timing, .num_timings = 1, .bpc = 8, .size = { .width = 259, .height = 173, }, .delay = { .hpd_reliable = 110, .enable = 50, .unprepare = 550, }, }; static const struct drm_display_mode sharp_lq140m1jw46_mode[] = { { .clock = 346500, .hdisplay = 1920, .hsync_start = 1920 + 48, .hsync_end = 1920 + 48 + 32, .htotal = 1920 + 48 + 32 + 80, .vdisplay = 1080, .vsync_start = 1080 + 3, .vsync_end = 1080 + 3 + 5, .vtotal = 1080 + 3 + 5 + 69, .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC, }, { .clock = 144370, .hdisplay = 1920, .hsync_start = 1920 + 48, .hsync_end = 1920 + 48 + 32, .htotal = 1920 + 48 + 32 + 80, .vdisplay = 1080, .vsync_start = 1080 + 3, .vsync_end = 1080 + 3 + 5, .vtotal = 1080 + 3 + 5 + 69, .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC, }, }; static const struct panel_desc sharp_lq140m1jw46 = { .modes = sharp_lq140m1jw46_mode, .num_modes = ARRAY_SIZE(sharp_lq140m1jw46_mode), .bpc = 8, .size = { .width = 309, .height = 174, }, .delay = { .hpd_absent = 80, .enable = 50, .unprepare = 500, }, }; static const struct drm_display_mode starry_kr122ea0sra_mode = { .clock = 147000, .hdisplay = 1920, .hsync_start = 1920 + 16, .hsync_end = 1920 + 16 + 16, .htotal = 1920 + 16 + 16 + 32, .vdisplay = 1200, .vsync_start = 1200 + 15, .vsync_end = 1200 + 15 + 2, .vtotal = 1200 + 15 + 2 + 18, .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC, }; static const struct panel_desc starry_kr122ea0sra = { .modes = &starry_kr122ea0sra_mode, .num_modes = 1, .size = { .width = 263, .height = 164, }, .delay = { /* TODO: should be hpd-absent and no-hpd should be set? */ .hpd_reliable = 10 + 200, .enable = 50, .unprepare = 10 + 500, }, }; static const struct of_device_id platform_of_match[] = { { /* Must be first */ .compatible = "edp-panel", }, { .compatible = "auo,b101ean01", .data = &auo_b101ean01, }, { .compatible = "auo,b116xa01", .data = &auo_b116xak01, }, { .compatible = "auo,b116xw03", .data = &auo_b116xw03, }, { .compatible = "auo,b133han05", .data = &auo_b133han05, }, { .compatible = "auo,b133htn01", .data = &auo_b133htn01, }, { .compatible = "auo,b133xtn01", .data = &auo_b133xtn01, }, { .compatible = "auo,b140han06", .data = &auo_b140han06, }, { .compatible = "boe,nv101wxmn51", .data = &boe_nv101wxmn51, }, { .compatible = "boe,nv110wtm-n61", .data = &boe_nv110wtm_n61, }, { .compatible = "boe,nv133fhm-n61", .data = &boe_nv133fhm_n61, }, { .compatible = "boe,nv133fhm-n62", .data = &boe_nv133fhm_n61, }, { .compatible = "boe,nv140fhmn49", .data = &boe_nv140fhmn49, }, { .compatible = "innolux,n116bca-ea1", .data = &innolux_n116bca_ea1, }, { .compatible = "innolux,n116bge", .data = &innolux_n116bge, }, { .compatible = "innolux,n125hce-gn1", .data = &innolux_n125hce_gn1, }, { .compatible = "innolux,p120zdg-bf1", .data = &innolux_p120zdg_bf1, }, { .compatible = "ivo,m133nwf4-r0", .data = &ivo_m133nwf4_r0, }, { .compatible = "kingdisplay,kd116n21-30nv-a010", .data = &kingdisplay_kd116n21_30nv_a010, }, { .compatible = "lg,lp079qx1-sp0v", .data = &lg_lp079qx1_sp0v, }, { .compatible = "lg,lp097qx1-spa1", .data = &lg_lp097qx1_spa1, }, { .compatible = "lg,lp120up1", .data = &lg_lp120up1, }, { .compatible = "lg,lp129qe", .data = &lg_lp129qe, }, { .compatible = "neweast,wjfh116008a", .data = &neweast_wjfh116008a, }, { .compatible = "samsung,lsn122dl01-c01", .data = &samsung_lsn122dl01_c01, }, { .compatible = "samsung,ltn140at29-301", .data = &samsung_ltn140at29_301, }, { .compatible = "sharp,ld-d5116z01b", .data = &sharp_ld_d5116z01b, }, { .compatible = "sharp,lq123p1jx31", .data = &sharp_lq123p1jx31, }, { .compatible = "sharp,lq140m1jw46", .data = &sharp_lq140m1jw46, }, { .compatible = "starry,kr122ea0sra", .data = &starry_kr122ea0sra, }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, platform_of_match); static const struct panel_delay delay_200_500_p2e80 = { .hpd_absent = 200, .unprepare = 500, .prepare_to_enable = 80, }; static const struct panel_delay delay_200_500_p2e100 = { .hpd_absent = 200, .unprepare = 500, .prepare_to_enable = 100, }; static const struct panel_delay delay_200_500_e50 = { .hpd_absent = 200, .unprepare = 500, .enable = 50, }; static const struct panel_delay delay_200_500_e80_d50 = { .hpd_absent = 200, .unprepare = 500, .enable = 80, .disable = 50, }; static const struct panel_delay delay_100_500_e200 = { .hpd_absent = 100, .unprepare = 500, .enable = 200, }; static const struct panel_delay delay_200_500_e200 = { .hpd_absent = 200, .unprepare = 500, .enable = 200, }; #define EDP_PANEL_ENTRY(vend_chr_0, vend_chr_1, vend_chr_2, product_id, _delay, _name) \ { \ .name = _name, \ .panel_id = drm_edid_encode_panel_id(vend_chr_0, vend_chr_1, vend_chr_2, \ product_id), \ .delay = _delay \ } /* * This table is used to figure out power sequencing delays for panels that * are detected by EDID. Entries here may point to entries in the * platform_of_match table (if a panel is listed in both places). * * Sort first by vendor, then by product ID. */ static const struct edp_panel_entry edp_panels[] = { EDP_PANEL_ENTRY('A', 'U', 'O', 0x1062, &delay_200_500_e50, "B120XAN01.0"), EDP_PANEL_ENTRY('A', 'U', 'O', 0x1e9b, &delay_200_500_e50, "B133UAN02.1"), EDP_PANEL_ENTRY('A', 'U', 'O', 0x1ea5, &delay_200_500_e50, "B116XAK01.6"), EDP_PANEL_ENTRY('A', 'U', 'O', 0x405c, &auo_b116xak01.delay, "B116XAK01"), EDP_PANEL_ENTRY('A', 'U', 'O', 0x582d, &delay_200_500_e50, "B133UAN01.0"), EDP_PANEL_ENTRY('A', 'U', 'O', 0x615c, &delay_200_500_e50, "B116XAN06.1"), EDP_PANEL_ENTRY('A', 'U', 'O', 0x8594, &delay_200_500_e50, "B133UAN01.0"), EDP_PANEL_ENTRY('B', 'O', 'E', 0x0786, &delay_200_500_p2e80, "NV116WHM-T01"), EDP_PANEL_ENTRY('B', 'O', 'E', 0x07d1, &boe_nv133fhm_n61.delay, "NV133FHM-N61"), EDP_PANEL_ENTRY('B', 'O', 'E', 0x082d, &boe_nv133fhm_n61.delay, "NV133FHM-N62"), EDP_PANEL_ENTRY('B', 'O', 'E', 0x094b, &delay_200_500_e50, "NT116WHM-N21"), EDP_PANEL_ENTRY('B', 'O', 'E', 0x095f, &delay_200_500_e50, "NE135FBM-N41 v8.1"), EDP_PANEL_ENTRY('B', 'O', 'E', 0x098d, &boe_nv110wtm_n61.delay, "NV110WTM-N61"), EDP_PANEL_ENTRY('B', 'O', 'E', 0x09dd, &delay_200_500_e50, "NT116WHM-N21"), EDP_PANEL_ENTRY('B', 'O', 'E', 0x0a5d, &delay_200_500_e50, "NV116WHM-N45"), EDP_PANEL_ENTRY('B', 'O', 'E', 0x0ac5, &delay_200_500_e50, "NV116WHM-N4C"), EDP_PANEL_ENTRY('C', 'M', 'N', 0x1139, &delay_200_500_e80_d50, "N116BGE-EA2"), EDP_PANEL_ENTRY('C', 'M', 'N', 0x114c, &innolux_n116bca_ea1.delay, "N116BCA-EA1"), EDP_PANEL_ENTRY('C', 'M', 'N', 0x1152, &delay_200_500_e80_d50, "N116BCN-EA1"), EDP_PANEL_ENTRY('C', 'M', 'N', 0x1153, &delay_200_500_e80_d50, "N116BGE-EA2"), EDP_PANEL_ENTRY('C', 'M', 'N', 0x1154, &delay_200_500_e80_d50, "N116BCA-EA2"), EDP_PANEL_ENTRY('C', 'M', 'N', 0x1247, &delay_200_500_e80_d50, "N120ACA-EA1"), EDP_PANEL_ENTRY('I', 'V', 'O', 0x057d, &delay_200_500_e200, "R140NWF5 RH"), EDP_PANEL_ENTRY('I', 'V', 'O', 0x854a, &delay_200_500_p2e100, "M133NW4J"), EDP_PANEL_ENTRY('I', 'V', 'O', 0x854b, &delay_200_500_p2e100, "R133NW4K-R0"), EDP_PANEL_ENTRY('K', 'D', 'B', 0x0624, &kingdisplay_kd116n21_30nv_a010.delay, "116N21-30NV-A010"), EDP_PANEL_ENTRY('K', 'D', 'B', 0x1120, &delay_200_500_e80_d50, "116N29-30NK-C007"), EDP_PANEL_ENTRY('S', 'H', 'P', 0x1511, &delay_200_500_e50, "LQ140M1JW48"), EDP_PANEL_ENTRY('S', 'H', 'P', 0x1523, &sharp_lq140m1jw46.delay, "LQ140M1JW46"), EDP_PANEL_ENTRY('S', 'H', 'P', 0x154c, &delay_200_500_p2e100, "LQ116M1JW10"), EDP_PANEL_ENTRY('S', 'T', 'A', 0x0100, &delay_100_500_e200, "2081116HHD028001-51D"), { /* sentinal */ } }; static const struct edp_panel_entry *find_edp_panel(u32 panel_id) { const struct edp_panel_entry *panel; if (!panel_id) return NULL; for (panel = edp_panels; panel->panel_id; panel++) if (panel->panel_id == panel_id) return panel; return NULL; } static int panel_edp_platform_probe(struct platform_device *pdev) { const struct of_device_id *id; /* Skip one since "edp-panel" is only supported on DP AUX bus */ id = of_match_node(platform_of_match + 1, pdev->dev.of_node); if (!id) return -ENODEV; return panel_edp_probe(&pdev->dev, id->data, NULL); } static void panel_edp_platform_remove(struct platform_device *pdev) { panel_edp_remove(&pdev->dev); } static void panel_edp_platform_shutdown(struct platform_device *pdev) { panel_edp_shutdown(&pdev->dev); } static const struct dev_pm_ops panel_edp_pm_ops = { SET_RUNTIME_PM_OPS(panel_edp_suspend, panel_edp_resume, NULL) SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, pm_runtime_force_resume) }; static struct platform_driver panel_edp_platform_driver = { .driver = { .name = "panel-edp", .of_match_table = platform_of_match, .pm = &panel_edp_pm_ops, }, .probe = panel_edp_platform_probe, .remove_new = panel_edp_platform_remove, .shutdown = panel_edp_platform_shutdown, }; static int panel_edp_dp_aux_ep_probe(struct dp_aux_ep_device *aux_ep) { const struct of_device_id *id; id = of_match_node(platform_of_match, aux_ep->dev.of_node); if (!id) return -ENODEV; return panel_edp_probe(&aux_ep->dev, id->data, aux_ep->aux); } static void panel_edp_dp_aux_ep_remove(struct dp_aux_ep_device *aux_ep) { panel_edp_remove(&aux_ep->dev); } static void panel_edp_dp_aux_ep_shutdown(struct dp_aux_ep_device *aux_ep) { panel_edp_shutdown(&aux_ep->dev); } static struct dp_aux_ep_driver panel_edp_dp_aux_ep_driver = { .driver = { .name = "panel-simple-dp-aux", .of_match_table = platform_of_match, /* Same as platform one! */ .pm = &panel_edp_pm_ops, }, .probe = panel_edp_dp_aux_ep_probe, .remove = panel_edp_dp_aux_ep_remove, .shutdown = panel_edp_dp_aux_ep_shutdown, }; static int __init panel_edp_init(void) { int err; err = platform_driver_register(&panel_edp_platform_driver); if (err < 0) return err; err = dp_aux_dp_driver_register(&panel_edp_dp_aux_ep_driver); if (err < 0) goto err_did_platform_register; return 0; err_did_platform_register: platform_driver_unregister(&panel_edp_platform_driver); return err; } module_init(panel_edp_init); static void __exit panel_edp_exit(void) { dp_aux_dp_driver_unregister(&panel_edp_dp_aux_ep_driver); platform_driver_unregister(&panel_edp_platform_driver); } module_exit(panel_edp_exit); MODULE_AUTHOR("Thierry Reding <treding@nvidia.com>"); MODULE_DESCRIPTION("DRM Driver for Simple eDP Panels"); MODULE_LICENSE("GPL and additional rights");