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path: root/drivers/video/display-uclass.c
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Diffstat (limited to 'drivers/video/display-uclass.c')
-rw-r--r--drivers/video/display-uclass.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/drivers/video/display-uclass.c b/drivers/video/display-uclass.c
new file mode 100644
index 0000000000..31522eac65
--- /dev/null
+++ b/drivers/video/display-uclass.c
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <display.h>
+#include <edid.h>
+#include <errno.h>
+
+int display_read_edid(struct udevice *dev, u8 *buf, int buf_size)
+{
+ struct dm_display_ops *ops = display_get_ops(dev);
+
+ if (!ops || !ops->read_edid)
+ return -ENOSYS;
+ return ops->read_edid(dev, buf, buf_size);
+}
+
+int display_enable(struct udevice *dev, int panel_bpp,
+ const struct display_timing *timing)
+{
+ struct dm_display_ops *ops = display_get_ops(dev);
+
+ if (!ops || !ops->enable)
+ return -ENOSYS;
+ return ops->enable(dev, panel_bpp, timing);
+}
+
+int display_read_timing(struct udevice *dev, struct display_timing *timing)
+{
+ struct dm_display_ops *ops = display_get_ops(dev);
+ int panel_bits_per_colour;
+ u8 buf[EDID_EXT_SIZE];
+ int ret;
+
+ if (!ops || !ops->read_edid)
+ return -ENOSYS;
+ ret = ops->read_edid(dev, buf, sizeof(buf));
+ if (ret < 0)
+ return ret;
+
+ return edid_get_timing(buf, ret, timing, &panel_bits_per_colour);
+}
+
+UCLASS_DRIVER(display) = {
+ .id = UCLASS_DISPLAY,
+ .name = "display",
+ .per_device_platdata_auto_alloc_size = sizeof(struct display_plat),
+};