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authorSimon Glass <sjg@chromium.org>2016-01-21 19:44:58 -0700
committerSimon Glass <sjg@chromium.org>2016-01-21 20:42:36 -0700
commitf563dc1d195aa7ca0ba1ce614031e9727fab1325 (patch)
treed54147c647b53c89cfba06daf204ba02f4101f0b /include/panel.h
parent65fba5927c9f5e313a15b952c8e51b6e3a693534 (diff)
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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>
Diffstat (limited to 'include/panel.h')
-rw-r--r--include/panel.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/include/panel.h b/include/panel.h
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index 0000000..57fccf2
--- /dev/null
+++ b/include/panel.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2016 Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _PANEL_H
+#define _PANEL_H
+
+struct panel_ops {
+ /**
+ * enable_backlight() - Enable the panel backlight
+ *
+ * @dev: Panel device containing the backlight to enable
+ * @return 0 if OK, -ve on error
+ */
+ int (*enable_backlight)(struct udevice *dev);
+};
+
+#define panel_get_ops(dev) ((struct panel_ops *)(dev)->driver->ops)
+
+/**
+ * panel_enable_backlight() - Enable the panel backlight
+ *
+ * @dev: Panel device containing the backlight to enable
+ * @return 0 if OK, -ve on error
+ */
+int panel_enable_backlight(struct udevice *dev);
+
+#endif