[PATCH v2 6/7 RESEND] cmd: button: store button state in the 'button' env

[Marek Szyprowski]

Save examined button state in 'button' environment variable to enable
checking button state in the scripts.

Signed-off-by: Marek Szyprowski <m.szyprowski at samsung.com>
---
Resend reason: get rid of the Change-Id tag, that was still in v2.
---
 cmd/button.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/cmd/button.c b/cmd/button.c
index 64c5a8fa04..8da911068a 100644
--- a/cmd/button.c
+++ b/cmd/button.c
@@ -23,8 +23,10 @@ static int show_button_state(struct udevice *dev)
 	ret = button_get_state(dev);
 	if (ret >= BUTTON_COUNT)
 		ret = -EINVAL;
-	if (ret >= 0)
+	if (ret >= 0) {
 		printf("%s\n", state_label[ret]);
+		env_set("button", state_label[ret]);
+	}
 
 	return ret;
 }
-- 
2.17.1