diff options
Diffstat (limited to 'drivers/gpu/drm/panel/panel-simple.c')
| -rw-r--r-- | drivers/gpu/drm/panel/panel-simple.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index 51f838befb..1ba633fd56 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -40,6 +40,7 @@ #include <drm/drm_edid.h> #include <drm/drm_mipi_dsi.h> #include <drm/drm_panel.h> +#include <drm/drm_of.h> /** * struct panel_desc - Describes a simple panel. @@ -549,6 +550,51 @@ 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_override_nondefault_lvds_datamapping(struct device *dev, + struct panel_simple *panel) +{ + int ret, bpc; + + ret = drm_of_lvds_get_data_mapping(dev->of_node); + if (ret < 0) { + if (ret == -EINVAL) + dev_warn(dev, "Ignore invalid data-mapping property\n"); + + /* + * Ignore non-existing or malformatted property, fallback to + * default data-mapping, and return 0. + */ + return 0; + } + + switch (ret) { + default: + WARN_ON(1); + fallthrough; + case MEDIA_BUS_FMT_RGB888_1X7X4_SPWG: + fallthrough; + case MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA: + bpc = 8; + break; + case MEDIA_BUS_FMT_RGB666_1X7X3_SPWG: + bpc = 6; + } + + if (panel->desc->bpc != bpc || panel->desc->bus_format != ret) { + struct panel_desc *override_desc; + + override_desc = devm_kmemdup(dev, panel->desc, sizeof(*panel->desc), GFP_KERNEL); + if (!override_desc) + return -ENOMEM; + + override_desc->bus_format = ret; + override_desc->bpc = bpc; + panel->desc = override_desc; + } + + return 0; +} + static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) { struct panel_simple *panel; @@ -601,6 +647,13 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) panel_simple_parse_panel_timing_node(dev, panel, &dt); } + if (desc->connector_type == DRM_MODE_CONNECTOR_LVDS) { + /* Optional data-mapping property for overriding bus format */ + err = panel_simple_override_nondefault_lvds_datamapping(dev, panel); + if (err) + goto free_ddc; + } + connector_type = desc->connector_type; /* Catch common mistakes for panels. */ switch (connector_type) { @@ -2826,6 +2879,32 @@ static const struct panel_desc mitsubishi_aa070mc01 = { .bus_flags = DRM_BUS_FLAG_DE_HIGH, }; +static const struct drm_display_mode mitsubishi_aa084xe01_mode = { + .clock = 56234, + .hdisplay = 1024, + .hsync_start = 1024 + 24, + .hsync_end = 1024 + 24 + 63, + .htotal = 1024 + 24 + 63 + 1, + .vdisplay = 768, + .vsync_start = 768 + 3, + .vsync_end = 768 + 3 + 6, + .vtotal = 768 + 3 + 6 + 1, + .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC, +}; + +static const struct panel_desc mitsubishi_aa084xe01 = { + .modes = &mitsubishi_aa084xe01_mode, + .num_modes = 1, + .bpc = 8, + .size = { + .width = 1024, + .height = 768, + }, + .bus_format = MEDIA_BUS_FMT_RGB565_1X16, + .connector_type = DRM_MODE_CONNECTOR_DPI, + .bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE, +}; + static const struct display_timing multi_inno_mi0700s4t_6_timing = { .pixelclock = { 29000000, 33000000, 38000000 }, .hactive = { 800, 800, 800 }, @@ -4360,6 +4439,9 @@ static const struct of_device_id platform_of_match[] = { .compatible = "mitsubishi,aa070mc01-ca1", .data = &mitsubishi_aa070mc01, }, { + .compatible = "mitsubishi,aa084xe01", + .data = &mitsubishi_aa084xe01, + }, { .compatible = "multi-inno,mi0700s4t-6", .data = &multi_inno_mi0700s4t_6, }, { |