video: Add skeleton driver for ZynqMP Display port driver
The reason for this driver is to use call power management driver to enable
it in PMUFW. There is missing functionality now but should be added in
near future.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/598cb9515bbabc803f72e287464e3d107cd106a3.1645627920.git.michal.simek@xilinx.com
diff --git a/drivers/video/zynqmp_dpsub.c b/drivers/video/zynqmp_dpsub.c
new file mode 100644
index 0000000..4ead663
--- /dev/null
+++ b/drivers/video/zynqmp_dpsub.c
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021 Xilinx Inc.
+ */
+
+#include <common.h>
+#include <cpu_func.h>
+#include <dm.h>
+#include <errno.h>
+#include <video.h>
+#include <dm/device_compat.h>
+
+#define WIDTH 640
+#define HEIGHT 480
+
+/**
+ * struct zynqmp_dpsub_priv - Private structure
+ * @dev: Device uclass for video_ops
+ */
+struct zynqmp_dpsub_priv {
+ struct udevice *dev;
+};
+
+static int zynqmp_dpsub_probe(struct udevice *dev)
+{
+ struct video_priv *uc_priv = dev_get_uclass_priv(dev);
+ struct zynqmp_dpsub_priv *priv = dev_get_priv(dev);
+
+ uc_priv->bpix = VIDEO_BPP16;
+ uc_priv->xsize = WIDTH;
+ uc_priv->ysize = HEIGHT;
+ uc_priv->rot = 0;
+
+ priv->dev = dev;
+
+ /* Only placeholder for power domain driver */
+ return 0;
+}
+
+static int zynqmp_dpsub_bind(struct udevice *dev)
+{
+ struct video_uc_plat *plat = dev_get_uclass_plat(dev);
+
+ plat->size = WIDTH * HEIGHT * 16;
+
+ return 0;
+}
+
+static const struct video_ops zynqmp_dpsub_ops = {
+};
+
+static const struct udevice_id zynqmp_dpsub_ids[] = {
+ { .compatible = "xlnx,zynqmp-dpsub-1.7" },
+ { }
+};
+
+U_BOOT_DRIVER(zynqmp_dpsub_video) = {
+ .name = "zynqmp_dpsub_video",
+ .id = UCLASS_VIDEO,
+ .of_match = zynqmp_dpsub_ids,
+ .ops = &zynqmp_dpsub_ops,
+ .plat_auto = sizeof(struct video_uc_plat),
+ .bind = zynqmp_dpsub_bind,
+ .probe = zynqmp_dpsub_probe,
+ .priv_auto = sizeof(struct zynqmp_dpsub_priv),
+};