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-rw-r--r--board/rambi/board.h1
-rw-r--r--include/config.h6
2 files changed, 7 insertions, 0 deletions
diff --git a/board/rambi/board.h b/board/rambi/board.h
index bebe44e570..95736b2e09 100644
--- a/board/rambi/board.h
+++ b/board/rambi/board.h
@@ -29,6 +29,7 @@
#define CONFIG_KEYBOARD_IRQ_GPIO GPIO_KBD_IRQ_L
#define CONFIG_KEYBOARD_PROTOCOL_8042
#define CONFIG_LED_COMMON
+#define CONFIG_LOW_POWER_IDLE
#undef CONFIG_PECI
#define CONFIG_POWER_BUTTON
#define CONFIG_POWER_BUTTON_X86
diff --git a/include/config.h b/include/config.h
index 58f68e2b33..46b6faef17 100644
--- a/include/config.h
+++ b/include/config.h
@@ -508,6 +508,12 @@
* Low power idle options. These are disabled by default and all boards that
* want to use low power idle must define it. When using the LFIOSC, the low
* frequency clock will be used to conserve even more power when possible.
+ *
+ * GPIOs which need to trigger interrupts in low power idle must specify the
+ * GPIO_INT_DSLEEP flag in gpio_list[].
+ *
+ * Note that for some processors (e.g. LM4), an active JTAG connection will
+ * prevent the EC from using low-power idle.
*/
#undef CONFIG_LOW_POWER_IDLE
#undef CONFIG_LOW_POWER_USE_LFIOSC