[PATCH v4 3/6] bootretry: check for bootretry variable changes

[Caleb Connolly]

To enable more complex sequencing of the bootmenu, autoboot, and
bootretry, handle changes to the bootretry variable between tries. This
makes it possible to turn bootretry off (e.g. to drop to a shell) and
then back on again.

This makes it possible to have a persistent bootmenu (the only way to
navigate U-Boot on devices like smartphones which lack a physical
keyboard) by having bootcmd be defined to launch the bootmenu. This
allows for menu options like enabling USB mass storage gadget to return
back to the boot menu once the gadget is shut down.

Reviewed-by: Tom Rini <trini at konsulko.com>
Tested-by: Danila Tikhonov <danila at jiaxyga.com> # google-sunfish
Tested-by: Jens Reidel <adrian at mainlining.org> # xiaomi-davinci
Signed-off-by: Caleb Connolly <caleb.connolly at linaro.org>
---
 boot/bootretry.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/boot/bootretry.c b/boot/bootretry.c
index 587b2de7d6b08db07e1dea512a834cb5590c2d12..a60767eaa2ee51970e4695e487ce5651575079ba 100644
--- a/boot/bootretry.c
+++ b/boot/bootretry.c
@@ -36,8 +36,10 @@ void bootretry_init_cmd_timeout(void)
  * reset command line timeout to retry_time seconds
  */
 void bootretry_reset_cmd_timeout(void)
 {
+	/* Parse changes to bootretry */
+	bootretry_init_cmd_timeout();
 	endtime = endtick(retry_time);
 }
 
 int bootretry_tstc_timeout(void)

-- 
2.49.0