@@ -16,6 +16,7 @@
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/regulator/consumer.h>
+#include <linux/media-bus-format.h>
#include <video/mipi_display.h>
@@ -410,6 +411,7 @@ static int s6e63m0_get_modes(struct drm_panel *panel,
struct drm_connector *connector)
{
struct drm_display_mode *mode;
+ static const u32 bus_format = MEDIA_BUS_FMT_RGB888_1X24;
mode = drm_mode_duplicate(connector->dev, &default_mode);
if (!mode) {
@@ -419,6 +421,13 @@ static int s6e63m0_get_modes(struct drm_panel *panel,
return -ENOMEM;
}
+ connector->display_info.width_mm = mode->width_mm;
+ connector->display_info.height_mm = mode->height_mm;
+ drm_display_info_set_bus_formats(&connector->display_info,
+ &bus_format, 1);
+ connector->display_info.bus_flags = DRM_BUS_FLAG_DE_LOW |
+ DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE;
+
drm_mode_set_name(mode);
mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
Copy over the width/height in millimeters to the (somewhat redundant) display info, and set up the bus format and bus flags for the display. When used as DPI this display requires DE to be active low and pixel data to be output on the negative edge. It might be that it was previously used with a display controller that either does not support these settings or was hardcoded to use these as default. This information comes from the source code of the Samsung GT-I9070 mobile phone. Cc: Stephan Gerhold <stephan@gerhold.net> Cc: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- drivers/gpu/drm/panel/panel-samsung-s6e63m0.c | 9 +++++++++ 1 file changed, 9 insertions(+)