video: Add a note about the broken implementation
The cls command is broken. Previous discussion about this was at [1] and
[2]. For now, add a note to the source code.
[1] https://patchwork.ozlabs.org/project/uboot/patch/
20221022092058.106052-1-heinrich.schuchardt@canonical.com/
[2] https://patchwork.ozlabs.org/project/uboot/patch/
20230106145243.411626-12-sjg@chromium.org/
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/cmd/cls.c b/cmd/cls.c
index 073ba5a..1125a3f 100644
--- a/cmd/cls.c
+++ b/cmd/cls.c
@@ -17,7 +17,13 @@
{
__maybe_unused struct udevice *dev;
- /* Send clear screen and home */
+ /*
+ * Send clear screen and home
+ *
+ * FIXME(Heinrich Schuchardt <xypron.glpk@gmx.de>): This should go
+ * through an API and only be written to serial terminals, not video
+ * displays
+ */
printf(CSI "2J" CSI "1;1H");
if (IS_ENABLED(CONFIG_VIDEO_ANSI))
return 0;