media: vimc: Add a control to display info on test image

Add a control in VIMC to display information such as the correct order of
colors for a given test pattern, counter, brightness, hue, saturation,
contrast, width and height at sensor over test image.

Signed-off-by: Kaaira Gupta <[email protected]>
Acked-by: Helen Koike <[email protected]>
Reviewed-by: Kieran Bingham <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/media/test-drivers/vimc/vimc-core.c b/drivers/media/test-drivers/vimc/vimc-core.c
index 11210aaa2551..4b0ae6f51d76 100644
--- a/drivers/media/test-drivers/vimc/vimc-core.c
+++ b/drivers/media/test-drivers/vimc/vimc-core.c
@@ -5,10 +5,12 @@
  * Copyright (C) 2015-2017 Helen Koike <[email protected]>
  */
 
+#include <linux/font.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <media/media-device.h>
+#include <media/tpg/v4l2-tpg.h>
 #include <media/v4l2-device.h>
 
 #include "vimc-common.h"
@@ -263,11 +265,19 @@ err_v4l2_unregister:
 
 static int vimc_probe(struct platform_device *pdev)
 {
+	const struct font_desc *font = find_font("VGA8x16");
 	struct vimc_device *vimc;
 	int ret;
 
 	dev_dbg(&pdev->dev, "probe");
 
+	if (!font) {
+		dev_err(&pdev->dev, "could not find font\n");
+		return -ENODEV;
+	}
+
+	tpg_set_font(font->data);
+
 	vimc = kzalloc(sizeof(*vimc), GFP_KERNEL);
 	if (!vimc)
 		return -ENOMEM;