dm: video: Add a uclass for display port

eDP (Embedded DisplayPort) is a standard widely used in laptops to drive
LCD panels. Add a uclass for this which supports a few simple operations.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/drivers/video/dp-uclass.c b/drivers/video/dp-uclass.c
new file mode 100644
index 0000000000..17f5de96ba
--- /dev/null
+++ b/drivers/video/dp-uclass.c
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <displayport.h>
+#include <errno.h>
+
+int display_port_read_edid(struct udevice *dev, u8 *buf, int buf_size)
+{
+	struct dm_display_port_ops *ops = display_port_get_ops(dev);
+
+	if (!ops || !ops->read_edid)
+		return -ENOSYS;
+	return ops->read_edid(dev, buf, buf_size);
+}
+
+int display_port_enable(struct udevice *dev, int panel_bpp,
+			const struct display_timing *timing)
+{
+	struct dm_display_port_ops *ops = display_port_get_ops(dev);
+
+	if (!ops || !ops->enable)
+		return -ENOSYS;
+	return ops->enable(dev, panel_bpp, timing);
+}
+
+UCLASS_DRIVER(display_port) = {
+	.id		= UCLASS_DISPLAY_PORT,
+	.name		= "display_port",
+};