coreinfo/coreinfo.c: Support both lower and upper case alphabets

Modify handle_category_key to handle both upper and lower case alphabets
in the coreinfo payload.

Change-Id: I3ccbf69e90ba7824ad6ec85d2ca59aa8f40b3006
Signed-off-by: Himanshu Sahdev <himanshusah@hcl.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35538
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/payloads/coreinfo/coreinfo.c b/payloads/coreinfo/coreinfo.c
index b731abfbf5..53985b293a 100644
--- a/payloads/coreinfo/coreinfo.c
+++ b/payloads/coreinfo/coreinfo.c
@@ -198,8 +198,13 @@ static void redraw_module(struct coreinfo_cat *cat)
 
 static void handle_category_key(struct coreinfo_cat *cat, int key)
 {
-	if (key >= 'a' && key <= 'z') {
-		int index = key - 'a';
+	if ((key >= 'a' && key <= 'z') || (key >= 'A' && key <= 'Z')) {
+		int index;
+		if (key >= 'A' && key <= 'Z') {
+			index = key - 'A';
+		} else {
+			index = key - 'a';
+		}
 		if (index < cat->count) {
 			cat->cur = index;
 			redraw_module(cat);