diff options
Diffstat (limited to 'drivers/gpu/drm/panel/panel-simple.c')
| -rw-r--r-- | drivers/gpu/drm/panel/panel-simple.c | 208 |
1 files changed, 195 insertions, 13 deletions
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index 21939d4352cf..9b286bd4444f 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -36,6 +36,8 @@ #include <drm/drm_crtc.h> #include <drm/drm_device.h> +#include <drm/drm_dp_aux_bus.h> +#include <drm/drm_dp_helper.h> #include <drm/drm_mipi_dsi.h> #include <drm/drm_panel.h> @@ -131,6 +133,22 @@ struct panel_desc { unsigned int prepare_to_enable; /** + * @delay.power_to_enable: Time for the power to enable the display on. + * + * The time (in milliseconds) to wait after powering up the display + * before asserting its enable pin. + */ + unsigned int power_to_enable; + + /** + * @delay.disable_to_power_off: Time for the disable to power the display off. + * + * The time (in milliseconds) to wait before powering off the display + * after deasserting its enable pin. + */ + unsigned int disable_to_power_off; + + /** * @delay.enable: Time for the panel to display a valid frame. * * The time (in milliseconds) that it takes for the panel to @@ -185,6 +203,7 @@ struct panel_simple { struct regulator *supply; struct i2c_adapter *ddc; + struct drm_dp_aux *aux; struct gpio_desc *enable_gpio; struct gpio_desc *hpd_gpio; @@ -344,6 +363,10 @@ static int panel_simple_suspend(struct device *dev) struct panel_simple *p = dev_get_drvdata(dev); gpiod_set_value_cansleep(p->enable_gpio, 0); + + if (p->desc->delay.disable_to_power_off) + msleep(p->desc->delay.disable_to_power_off); + regulator_disable(p->supply); p->unprepared_time = ktime_get(); @@ -404,6 +427,9 @@ static int panel_simple_prepare_once(struct panel_simple *p) return err; } + if (p->desc->delay.power_to_enable) + msleep(p->desc->delay.power_to_enable); + gpiod_set_value_cansleep(p->enable_gpio, 1); delay = p->desc->delay.prepare; @@ -657,7 +683,8 @@ static void panel_simple_parse_panel_timing_node(struct device *dev, dev_err(dev, "Reject override mode: No display_timing found\n"); } -static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) +static int panel_simple_probe(struct device *dev, const struct panel_desc *desc, + struct drm_dp_aux *aux) { struct panel_simple *panel; struct display_timing dt; @@ -673,6 +700,7 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) 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) { @@ -707,6 +735,8 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) if (!panel->ddc) return -EPROBE_DEFER; + } else if (aux) { + panel->ddc = &aux->ddc; } if (desc == &panel_dpi) { @@ -742,10 +772,8 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) desc->bpc != 8); break; case DRM_MODE_CONNECTOR_eDP: - if (desc->bus_format == 0) - dev_warn(dev, "Specify missing bus_format\n"); - if (desc->bpc != 6 && desc->bpc != 8) - dev_warn(dev, "Expected bpc in {6,8} but got: %u\n", desc->bpc); + 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); break; case DRM_MODE_CONNECTOR_DSI: if (desc->bpc != 6 && desc->bpc != 8) @@ -775,6 +803,11 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) break; } + if (!panel->enable_gpio && desc->delay.disable_to_power_off) + dev_warn(dev, "Need a delay after disabling panel GPIO, but a GPIO wasn't provided\n"); + if (!panel->enable_gpio && desc->delay.power_to_enable) + dev_warn(dev, "Need a delay before enabling panel GPIO, but a GPIO wasn't provided\n"); + dev_set_drvdata(dev, panel); /* @@ -793,6 +826,15 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) if (err) goto disable_pm_runtime; + 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 disable_pm_runtime; + } + drm_panel_add(&panel->base); return 0; @@ -801,7 +843,7 @@ disable_pm_runtime: pm_runtime_dont_use_autosuspend(dev); pm_runtime_disable(dev); free_ddc: - if (panel->ddc) + if (panel->ddc && (!panel->aux || panel->ddc != &panel->aux->ddc)) put_device(&panel->ddc->dev); return err; @@ -817,7 +859,7 @@ static int panel_simple_remove(struct device *dev) pm_runtime_dont_use_autosuspend(dev); pm_runtime_disable(dev); - if (panel->ddc) + if (panel->ddc && (!panel->aux || panel->ddc != &panel->aux->ddc)) put_device(&panel->ddc->dev); return 0; @@ -1179,6 +1221,8 @@ static const struct panel_desc auo_g104sn02 = { .width = 211, .height = 158, }, + .bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG, + .connector_type = DRM_MODE_CONNECTOR_LVDS, }; static const struct drm_display_mode auo_g121ean01_mode = { @@ -1929,6 +1973,32 @@ static const struct panel_desc edt_et035012dm6 = { .bus_flags = DRM_BUS_FLAG_DE_LOW | DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE, }; +static const struct drm_display_mode edt_etm0350g0dh6_mode = { + .clock = 6520, + .hdisplay = 320, + .hsync_start = 320 + 20, + .hsync_end = 320 + 20 + 68, + .htotal = 320 + 20 + 68, + .vdisplay = 240, + .vsync_start = 240 + 4, + .vsync_end = 240 + 4 + 18, + .vtotal = 240 + 4 + 18, + .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC, +}; + +static const struct panel_desc edt_etm0350g0dh6 = { + .modes = &edt_etm0350g0dh6_mode, + .num_modes = 1, + .bpc = 6, + .size = { + .width = 70, + .height = 53, + }, + .bus_format = MEDIA_BUS_FMT_RGB888_1X24, + .bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE, + .connector_type = DRM_MODE_CONNECTOR_DPI, +}; + static const struct drm_display_mode edt_etm043080dh6gp_mode = { .clock = 10870, .hdisplay = 480, @@ -1980,6 +2050,9 @@ static const struct panel_desc edt_etm0430g0dh6 = { .width = 95, .height = 54, }, + .bus_format = MEDIA_BUS_FMT_RGB666_1X18, + .bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE, + .connector_type = DRM_MODE_CONNECTOR_DPI, }; static const struct drm_display_mode edt_et057090dhu_mode = { @@ -2044,6 +2117,33 @@ static const struct panel_desc edt_etm0700g0bdh6 = { }, .bus_format = MEDIA_BUS_FMT_RGB666_1X18, .bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE, + .connector_type = DRM_MODE_CONNECTOR_DPI, +}; + +static const struct drm_display_mode edt_etmv570g2dhu_mode = { + .clock = 25175, + .hdisplay = 640, + .hsync_start = 640, + .hsync_end = 640 + 16, + .htotal = 640 + 16 + 30 + 114, + .vdisplay = 480, + .vsync_start = 480 + 10, + .vsync_end = 480 + 10 + 3, + .vtotal = 480 + 10 + 3 + 35, + .flags = DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PHSYNC, +}; + +static const struct panel_desc edt_etmv570g2dhu = { + .modes = &edt_etmv570g2dhu_mode, + .num_modes = 1, + .bpc = 6, + .size = { + .width = 115, + .height = 86, + }, + .bus_format = MEDIA_BUS_FMT_RGB888_1X24, + .bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE, + .connector_type = DRM_MODE_CONNECTOR_DPI, }; static const struct display_timing evervision_vgg804821_timing = { @@ -3521,6 +3621,36 @@ static const struct panel_desc rocktech_rk101ii01d_ct = { .connector_type = DRM_MODE_CONNECTOR_LVDS, }; +static const struct drm_display_mode samsung_atna33xc20_mode = { + .clock = 138770, + .hdisplay = 1920, + .hsync_start = 1920 + 48, + .hsync_end = 1920 + 48 + 32, + .htotal = 1920 + 48 + 32 + 80, + .vdisplay = 1080, + .vsync_start = 1080 + 8, + .vsync_end = 1080 + 8 + 8, + .vtotal = 1080 + 8 + 8 + 16, + .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC, +}; + +static const struct panel_desc samsung_atna33xc20 = { + .modes = &samsung_atna33xc20_mode, + .num_modes = 1, + .bpc = 10, + .size = { + .width = 294, + .height = 165, + }, + .delay = { + .disable_to_power_off = 200, + .power_to_enable = 400, + .hpd_absent_delay = 200, + .unprepare = 500, + }, + .connector_type = DRM_MODE_CONNECTOR_eDP, +}; + static const struct drm_display_mode samsung_lsn122dl01_c01_mode = { .clock = 271560, .hdisplay = 2560, @@ -4330,6 +4460,9 @@ static const struct of_device_id platform_of_match[] = { .compatible = "edt,et035012dm6", .data = &edt_et035012dm6, }, { + .compatible = "edt,etm0350g0dh6", + .data = &edt_etm0350g0dh6, + }, { .compatible = "edt,etm043080dh6gp", .data = &edt_etm043080dh6gp, }, { @@ -4351,6 +4484,9 @@ static const struct of_device_id platform_of_match[] = { .compatible = "edt,etm0700g0edh6", .data = &edt_etm0700g0bdh6, }, { + .compatible = "edt,etmv570g2dhu", + .data = &edt_etmv570g2dhu, + }, { .compatible = "evervision,vgg804821", .data = &evervision_vgg804821, }, { @@ -4522,6 +4658,9 @@ static const struct of_device_id platform_of_match[] = { .compatible = "rocktech,rk101ii01d-ct", .data = &rocktech_rk101ii01d_ct, }, { + .compatible = "samsung,atna33xc20", + .data = &samsung_atna33xc20, + }, { .compatible = "samsung,lsn122dl01-c01", .data = &samsung_lsn122dl01_c01, }, { @@ -4632,7 +4771,7 @@ static int panel_simple_platform_probe(struct platform_device *pdev) if (!id) return -ENODEV; - return panel_simple_probe(&pdev->dev, id->data); + return panel_simple_probe(&pdev->dev, id->data, NULL); } static int panel_simple_platform_remove(struct platform_device *pdev) @@ -4912,7 +5051,7 @@ static int panel_simple_dsi_probe(struct mipi_dsi_device *dsi) desc = id->data; - err = panel_simple_probe(&dsi->dev, &desc->desc); + err = panel_simple_probe(&dsi->dev, &desc->desc, NULL); if (err < 0) return err; @@ -4957,6 +5096,38 @@ static struct mipi_dsi_driver panel_simple_dsi_driver = { .shutdown = panel_simple_dsi_shutdown, }; +static int panel_simple_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_simple_probe(&aux_ep->dev, id->data, aux_ep->aux); +} + +static void panel_simple_dp_aux_ep_remove(struct dp_aux_ep_device *aux_ep) +{ + panel_simple_remove(&aux_ep->dev); +} + +static void panel_simple_dp_aux_ep_shutdown(struct dp_aux_ep_device *aux_ep) +{ + panel_simple_shutdown(&aux_ep->dev); +} + +static struct dp_aux_ep_driver panel_simple_dp_aux_ep_driver = { + .driver = { + .name = "panel-simple-dp-aux", + .of_match_table = platform_of_match, /* Same as platform one! */ + .pm = &panel_simple_pm_ops, + }, + .probe = panel_simple_dp_aux_ep_probe, + .remove = panel_simple_dp_aux_ep_remove, + .shutdown = panel_simple_dp_aux_ep_shutdown, +}; + static int __init panel_simple_init(void) { int err; @@ -4965,15 +5136,25 @@ static int __init panel_simple_init(void) if (err < 0) return err; + err = dp_aux_dp_driver_register(&panel_simple_dp_aux_ep_driver); + if (err < 0) + goto err_did_platform_register; + if (IS_ENABLED(CONFIG_DRM_MIPI_DSI)) { err = mipi_dsi_driver_register(&panel_simple_dsi_driver); - if (err < 0) { - platform_driver_unregister(&panel_simple_platform_driver); - return err; - } + if (err < 0) + goto err_did_aux_ep_register; } return 0; + +err_did_aux_ep_register: + dp_aux_dp_driver_unregister(&panel_simple_dp_aux_ep_driver); + +err_did_platform_register: + platform_driver_unregister(&panel_simple_platform_driver); + + return err; } module_init(panel_simple_init); @@ -4982,6 +5163,7 @@ static void __exit panel_simple_exit(void) if (IS_ENABLED(CONFIG_DRM_MIPI_DSI)) mipi_dsi_driver_unregister(&panel_simple_dsi_driver); + dp_aux_dp_driver_unregister(&panel_simple_dp_aux_ep_driver); platform_driver_unregister(&panel_simple_platform_driver); } module_exit(panel_simple_exit); |