Add support for transparent LVDS decoders by adding a new
compatible string ("lvds-decoder") to the driver.
This patch also adds member connector_type to struct lvds_codec,
and that's because LVDS decoders have a different connector type
from LVDS encoders. We fill this new member up with the data
matching the compatible string.
Signed-off-by: Fabrizio Castro <fabrizio.cas...@bp.renesas.com>
---
v3->v4:
* New patch
---
drivers/gpu/drm/bridge/lvds-codec.c | 19 ++++++++++++++++---
1 file changed, 16 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/bridge/lvds-codec.c
b/drivers/gpu/drm/bridge/lvds-codec.c
index b5801a2..c32e125 100644
--- a/drivers/gpu/drm/bridge/lvds-codec.c
+++ b/drivers/gpu/drm/bridge/lvds-codec.c
@@ -7,6 +7,7 @@
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/of.h>
+#include <linux/of_device.h>
#include <linux/of_graph.h>
#include <linux/platform_device.h>
@@ -17,6 +18,7 @@ struct lvds_codec {
struct drm_bridge bridge;
struct drm_bridge *panel_bridge;
struct gpio_desc *powerdown_gpio;
+ u32 connector_type;
};
static int lvds_codec_attach(struct drm_bridge *bridge)
@@ -65,6 +67,7 @@ static int lvds_codec_probe(struct platform_device *pdev)
if (!lvds_codec)
return -ENOMEM;
+ lvds_codec->connector_type = (u32)of_device_get_match_data(&pdev->dev);
lvds_codec->powerdown_gpio = devm_gpiod_get_optional(dev, "powerdown",
GPIOD_OUT_HIGH);
if (IS_ERR(lvds_codec->powerdown_gpio)) {
@@ -105,7 +108,7 @@ static int lvds_codec_probe(struct platform_device *pdev)
lvds_codec->panel_bridge =
devm_drm_panel_bridge_add_typed(dev, panel,
- DRM_MODE_CONNECTOR_LVDS);
+ lvds_codec->connector_type);
if (IS_ERR(lvds_codec->panel_bridge))
return PTR_ERR(lvds_codec->panel_bridge);
@@ -133,8 +136,18 @@ static int lvds_codec_remove(struct platform_device *pdev)
}
static const struct of_device_id lvds_codec_match[] = {
- { .compatible = "lvds-encoder" },
- { .compatible = "thine,thc63lvdm83d" },
+ {
+ .compatible = "lvds-decoder",
+ .data = (void *)DRM_MODE_CONNECTOR_DPI,
+ },
+ {
+ .compatible = "lvds-encoder",
+ .data = (void *)DRM_MODE_CONNECTOR_LVDS,
+ },
+ {
+ .compatible = "thine,thc63lvdm83d",
+ .data = (void *)DRM_MODE_CONNECTOR_LVDS,
+ },
{},
};
MODULE_DEVICE_TABLE(of, lvds_codec_match);
--
2.7.4
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