darp7: Hack-fix power-on issue

The power button should be disabled when a machine is unplugged with the lid closed. On darp7, `LID_SW#` can take >200ms at init to reflect the correct state of the lid, so it would regularly fail the check. It was common for the board to still power on. Signed-off-by: Tim Crawford <[email protected]>
system76 · Aug 17, 2021 · d9131a3 · d9131a3
1 parent f55e493
commit d9131a3
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/src/board/system76/darp7/board.c b/src/board/system76/darp7/board.c
@@ -1,10 +1,10 @@
 // SPDX-License-Identifier: GPL-3.0-only
 
+#include <arch/delay.h>
 #include <board/board.h>
 #include <board/espi.h>
 #include <board/gctrl.h>
 #include <board/gpio.h>
-#include <common/debug.h>
 #include <ec/ec.h>
 
 void board_init(void) {
@@ -24,6 +24,11 @@ void board_init(void) {
     // Assert SMI# and SWI#
     gpio_set(&SMI_N, true);
     gpio_set(&SWI_N, true);
+
+    // FIXME: LID_SW# takes a while (sometimes >200ms) to read the correct
+    // state of the lid. Give it time to settle. Done here because it is the
+    // last init called.
+    delay_ms(200);
 }
 
 void board_event(void) {