From: Patrick Bruenn <p.bruenn@xxxxxxxxxxxx>
This is a fix for the CX9020 Embedded PC. On that device the 24-bit
parallel-display signal of the imx53 is combined with an I2C channel
and converted to DVI-D port. Devicetree magic always requires a panel
connected to the parallel-display port.
We add an empty panel_desc, to get recognized by the panel-simple
driver, which can then use the ddc bus to read the panels configuration.
Signed-off-by: Patrick Bruenn <p.bruenn@xxxxxxxxxxxx>
---
drivers/gpu/drm/panel/panel-simple.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index c4566ce8fda7..52b2a7fb59ed 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1856,6 +1856,9 @@ static const struct panel_desc winstar_wf35ltiacd = {
.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
};
+static const struct panel_desc simple_ddc_only = {
+};
+
static const struct of_device_id platform_of_match[] = {
{
.compatible = "ampire,am-480272h3tmqw-t01h",
@@ -2050,6 +2053,9 @@ static const struct of_device_id platform_of_match[] = {
.compatible = "winstar,wf35ltiacd",
.data = &winstar_wf35ltiacd,
}, {
+ .compatible = "simple,ddc-only",
+ .data = &simple_ddc_only,
+ }, {
/* sentinel */
}
};
--
2.11.0
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