Fix USB initilaize on LUFA

- Add print messages of USB intialize procesure.
- call out sei() in earlier stage. LUFA API doc of USB_Init() says:
interrupts must be enabled within 500ms ... to ensure that the host does
not time out whilst enumerating the device
- remove matrix_init() from suspend_wakeup_init(). It is not needed in
  fact and if matrix_init() takes long time to initialize it prevents
host emnumerating the device.

2 files changed, 1 insertions, 5 deletions

diff --git a/common/keyboard.c b/common/keyboard.c
index d1821a099..601e3abe1 100644
--- a/common/keyboard.c
+++ b/common/keyboard.c
@@ -54,9 +54,6 @@ static bool has_ghost_in_row(uint8_t row)
 
 void keyboard_init(void)
 {
-    // TODO: configuration of sendchar impl
-    print_set_sendchar(sendchar);
-
     timer_init();
     matrix_init();
 #ifdef PS2_MOUSE_ENABLE
diff --git a/common/suspend.c b/common/suspend.c
index 146b96d5c..5b378892f 100644
--- a/common/suspend.c
+++ b/common/suspend.c
@@ -51,8 +51,7 @@ bool suspend_wakeup_condition(void)
 // run immediately after wakeup
 void suspend_wakeup_init(void)
 {
-    // clear matrix and keyboard state
-    matrix_init();
+    // clear keyboard state
     clear_keyboard();
 #ifdef BACKLIGHT_ENABLE
     backlight_init();