Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
---
drivers/video/display/panel-dpi.c | 155 +++++++++++++++++++++++++++++++++++++
include/video/panel-dpi.h | 25 ++++++
2 files changed, 180 insertions(+)
create mode 100644 drivers/video/display/panel-dpi.c
create mode 100644 include/video/panel-dpi.h
diff --git a/drivers/video/display/panel-dpi.c b/drivers/video/display/panel-dpi.c
new file mode 100644
index 0000000..824cd88
--- /dev/null
+++ b/drivers/video/display/panel-dpi.c
@@ -0,0 +1,155 @@
+/*
+ * DPI Display Panel
+ *
+ * Copyright (C) 2012 Renesas Solutions Corp.
+ *
+ * Contacts: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include <video/display.h>
+#include <video/panel-dpi.h>
+
+struct panel_dpi {
+ struct display_entity entity;
+ struct video_source *src;
+ const struct panel_dpi_platform_data *pdata;
+};
+
+#define to_panel_dpi(p) container_of(p, struct panel_dpi, entity)
+
+static int panel_dpi_set_state(struct display_entity *entity,
+ enum display_entity_state state)
+{
+ struct panel_dpi *panel = to_panel_dpi(entity);
+ struct video_source *src = panel->src;
+
+ switch (state) {
+ case DISPLAY_ENTITY_STATE_OFF:
+ case DISPLAY_ENTITY_STATE_STANDBY:
+ src->common_ops->set_stream(src,
+ DISPLAY_ENTITY_STREAM_STOPPED);
+ break;
+
+ case DISPLAY_ENTITY_STATE_ON:
+ src->common_ops->set_stream(src,
+ DISPLAY_ENTITY_STREAM_CONTINUOUS);
+ break;
+ }
+
+ return 0;
+}
+
+static int panel_dpi_get_modes(struct display_entity *entity,
+ const struct videomode **modes)
+{
+ struct panel_dpi *panel = to_panel_dpi(entity);
+
+ *modes = panel->pdata->mode;
+ return 1;
+}
+
+static int panel_dpi_get_size(struct display_entity *entity,
+ unsigned int *width, unsigned int *height)
+{
+ struct panel_dpi *panel = to_panel_dpi(entity);
+
+ *width = panel->pdata->width;
+ *height = panel->pdata->height;
+ return 0;
+}
+
+static const struct display_entity_control_ops panel_dpi_control_ops = {
+ .set_state = panel_dpi_set_state,
+ .get_modes = panel_dpi_get_modes,
+ .get_size = panel_dpi_get_size,
+};
+
+static void panel_dpi_release(struct display_entity *entity)
+{
+ struct panel_dpi *panel = to_panel_dpi(entity);
+
+ kfree(panel);
+}
+
+static int panel_dpi_remove(struct platform_device *pdev)
+{
+ struct panel_dpi *panel = platform_get_drvdata(pdev);
+
+ display_entity_unregister(&panel->entity);
+
+ if (panel->src) {
+ video_source_put(panel->src);
+ panel->src = NULL;
+ }
+
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static int __devinit panel_dpi_probe(struct platform_device *pdev)
+{
+ const struct panel_dpi_platform_data *pdata = pdev->dev.platform_data;
+ struct panel_dpi *panel;
+ int ret;
+
+ if (pdata == NULL)
+ return -ENODEV;
+
+ panel = kzalloc(sizeof(*panel), GFP_KERNEL);
+ if (panel == NULL)
+ return -ENOMEM;
+
+ panel->pdata = pdata;
+
+ panel->src = video_source_find(pdata->video_source);
+ if (panel->src == NULL) {
+ printk("failed to get video source\n");
+ return -EINVAL;
+ }
+
+ panel->src->ops.dpi->set_data_lines(panel->src, 24);
+ panel->src->ops.dpi->set_videomode(panel->src, pdata->mode);
+
+ panel->entity.dev = &pdev->dev;
+ panel->entity.release = panel_dpi_release;
+ panel->entity.ops = &panel_dpi_control_ops;
+
+ ret = display_entity_register(&panel->entity);
+ if (ret < 0) {
+ kfree(panel);
+ return ret;
+ }
+
+ platform_set_drvdata(pdev, panel);
+
+ return 0;
+}
+
+static const struct dev_pm_ops panel_dpi_dev_pm_ops = {
+};
+
+static struct platform_driver panel_dpi_driver = {
+ .probe = panel_dpi_probe,
+ .remove = panel_dpi_remove,
+ .driver = {
+ .name = "panel_dpi",
+ .owner = THIS_MODULE,
+ .pm = &panel_dpi_dev_pm_ops,
+ },
+};
+
+module_platform_driver(panel_dpi_driver);
+
+MODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>");
+MODULE_DESCRIPTION("DPI Display Panel");
+MODULE_LICENSE("GPL");
diff --git a/include/video/panel-dpi.h b/include/video/panel-dpi.h
new file mode 100644
index 0000000..0c5856e
--- /dev/null
+++ b/include/video/panel-dpi.h
@@ -0,0 +1,25 @@
+/*
+ * DPI Display Panel
+ *
+ * Copyright (C) 2012 Renesas Solutions Corp.
+ *
+ * Contacts: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __PANEL_DPI_H__
+#define __PANEL_DPI_H__
+
+#include <linux/videomode.h>
+
+struct panel_dpi_platform_data {
+ const char *video_source;
+ unsigned long width; /* Panel width in mm */
+ unsigned long height; /* Panel height in mm */
+ const struct videomode *mode;
+};
+
+#endif /* __PANEL_DPI_H__ */
--
1.7.10.4
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