From f563dc1d195aa7ca0ba1ce614031e9727fab1325 Mon Sep 17 00:00:00 2001
From: Simon Glass <sjg@chromium.org>
Date: Thu, 21 Jan 2016 19:44:58 -0700
Subject: dm: panel: Add a panel uclass

LCD panels can usefully be modelled as their own uclass. They can be probed
(which powers them up ready for use). If they have a backlight, this can be
enabled.

Signed-off-by: Simon Glass <sjg@chromium.org>
---
 drivers/video/panel-uclass.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 drivers/video/panel-uclass.c

(limited to 'drivers/video/panel-uclass.c')

diff --git a/drivers/video/panel-uclass.c b/drivers/video/panel-uclass.c
new file mode 100644
index 0000000..3f4c41b
--- /dev/null
+++ b/drivers/video/panel-uclass.c
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2016 Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <panel.h>
+
+int panel_enable_backlight(struct udevice *dev)
+{
+	struct panel_ops *ops = panel_get_ops(dev);
+
+	if (!ops->enable_backlight)
+		return -ENOSYS;
+
+	return ops->enable_backlight(dev);
+}
+
+UCLASS_DRIVER(panel) = {
+	.id		= UCLASS_PANEL,
+	.name		= "panel",
+};
-- 
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