Reduce SPLIT_USB_TIMEOUT by 500ms (#7637)

* Update SPLIT_USB_TIMEOUT -500ms

* Align keyboard level SPLIT_USB_TIMEOUT defaults

* Align keyboard level SPLIT_USB_TIMEOUT_POLL

* Review fixes

1 files changed, 8 insertions, 4 deletions

diff --git a/quantum/split_common/split_util.c b/quantum/split_common/split_util.c
index 076f18664..103bc9714 100644
--- a/quantum/split_common/split_util.c
+++ b/quantum/split_common/split_util.c
@@ -15,14 +15,18 @@
 #endif
 
 #ifndef SPLIT_USB_TIMEOUT
-#    define SPLIT_USB_TIMEOUT 2500
+#    define SPLIT_USB_TIMEOUT 2000
+#endif
+
+#ifndef SPLIT_USB_TIMEOUT_POLL
+#    define SPLIT_USB_TIMEOUT_POLL 10
 #endif
 
 volatile bool isLeftHand = true;
 
 bool waitForUsb(void) {
-    for (uint8_t i = 0; i < (SPLIT_USB_TIMEOUT / 100); i++) {
-        // This will return true of a USB connection has been established
+    for (uint8_t i = 0; i < (SPLIT_USB_TIMEOUT / SPLIT_USB_TIMEOUT_POLL); i++) {
+        // This will return true if a USB connection has been established
 #if defined(__AVR__)
         if (UDADDR & _BV(ADDEN)) {
 #else
@@ -30,7 +34,7 @@ bool waitForUsb(void) {
 #endif
             return true;
         }
-        wait_ms(100);
+        wait_ms(SPLIT_USB_TIMEOUT_POLL);
     }
 
     // Avoid NO_USB_STARTUP_CHECK - Disable USB as the previous checks seem to enable it somehow