ec/google: Use EC_HOST_EVENT_NONE

google_chromeec_get_event returns 0 for no event. Return
EC_HOST_EVENT_NONE=0 to improve readability.

BUG=b:184074997
TEST=Build and boot guybrush without error

Signed-off-by: Rob Barnes <robbarnes@google.com>
Change-Id: Ic08ed9ccdd7c0023d0fe8b641fcf60dca495a242
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55547
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>

8 files changed, 29 insertions, 20 deletions

diff --git a/src/mainboard/google/auron/ec.c b/src/mainboard/google/auron/ec.c
index 5be20c01d2..d4482b01ba 100644
--- a/src/mainboard/google/auron/ec.c
+++ b/src/mainboard/google/auron/ec.c
@@ -23,7 +23,7 @@ void mainboard_ec_init(void)
 	google_chromeec_events_init(&info, s3_wakeup);
 	if (s3_wakeup) {
 		/* Clear pending events. */
-		while (google_chromeec_get_event() != 0)
+		while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
 			;
 	}
 
diff --git a/src/mainboard/google/auron/smihandler.c b/src/mainboard/google/auron/smihandler.c
index 34ed171f8a..6fa95e8dff 100644
--- a/src/mainboard/google/auron/smihandler.c
+++ b/src/mainboard/google/auron/smihandler.c
@@ -97,7 +97,7 @@ void mainboard_smi_sleep(u8 slp_typ)
 	google_chromeec_set_sci_mask(0);
 
 	/* Clear pending events that may trigger immediate wake */
-	while (google_chromeec_get_event() != 0)
+	while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
 		;
 }
 
@@ -107,14 +107,14 @@ int mainboard_smi_apmc(u8 apmc)
 	case APM_CNT_ACPI_ENABLE:
 		google_chromeec_set_smi_mask(0);
 		/* Clear all pending events */
-		while (google_chromeec_get_event() != 0)
+		while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
 			;
 		google_chromeec_set_sci_mask(MAINBOARD_EC_SCI_EVENTS);
 		break;
 	case APM_CNT_ACPI_DISABLE:
 		google_chromeec_set_sci_mask(0);
 		/* Clear all pending events */
-		while (google_chromeec_get_event() != 0)
+		while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
 			;
 		google_chromeec_set_smi_mask(MAINBOARD_EC_SMI_EVENTS);
 		break;
diff --git a/src/mainboard/google/cyan/smihandler.c b/src/mainboard/google/cyan/smihandler.c
index d9121e16d0..9083a8773b 100644
--- a/src/mainboard/google/cyan/smihandler.c
+++ b/src/mainboard/google/cyan/smihandler.c
@@ -126,7 +126,7 @@ void mainboard_smi_sleep(uint8_t slp_typ)
 	google_chromeec_set_sci_mask(0);
 
 	/* Clear pending events that may trigger immediate wake */
-	while (google_chromeec_get_event() != 0)
+	while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
 		;
 
 	/* Set LPC lines to low power in S3/S5. */
@@ -141,14 +141,14 @@ int mainboard_smi_apmc(uint8_t apmc)
 	case APM_CNT_ACPI_ENABLE:
 		google_chromeec_set_smi_mask(0);
 		/* Clear all pending events */
-		while (google_chromeec_get_event() != 0)
+		while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
 			;
 		google_chromeec_set_sci_mask(MAINBOARD_EC_SCI_EVENTS);
 		break;
 	case APM_CNT_ACPI_DISABLE:
 		google_chromeec_set_sci_mask(0);
 		/* Clear all pending events */
-		while (google_chromeec_get_event() != 0)
+		while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
 			;
 		google_chromeec_set_smi_mask(MAINBOARD_EC_SMI_EVENTS);
 		break;
diff --git a/src/mainboard/google/link/smihandler.c b/src/mainboard/google/link/smihandler.c
index 719076b3f8..2f42b7da18 100644
--- a/src/mainboard/google/link/smihandler.c
+++ b/src/mainboard/google/link/smihandler.c
@@ -69,7 +69,8 @@ void mainboard_smi_sleep(u8 slp_typ)
 	google_chromeec_set_sci_mask(0);
 
 	/* Clear pending events that may trigger immediate wake */
-	while (google_chromeec_get_event() != 0);
+	while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
+		;
 
 	/* Enable wake events */
 	google_chromeec_set_wake_mask(LINK_EC_S3_WAKE_EVENTS);
@@ -81,13 +82,15 @@ int mainboard_smi_apmc(u8 apmc)
 	case APM_CNT_ACPI_ENABLE:
 		google_chromeec_set_smi_mask(0);
 		/* Clear all pending events */
-		while (google_chromeec_get_event() != 0);
+		while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
+			;
 		google_chromeec_set_sci_mask(LINK_EC_SCI_EVENTS);
 		break;
 	case APM_CNT_ACPI_DISABLE:
 		google_chromeec_set_sci_mask(0);
 		/* Clear all pending events */
-		while (google_chromeec_get_event() != 0);
+		while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
+			;
 		google_chromeec_set_smi_mask(LINK_EC_SMI_EVENTS);
 		break;
 	}
diff --git a/src/mainboard/google/rambi/smihandler.c b/src/mainboard/google/rambi/smihandler.c
index c16a0f525b..358a92f967 100644
--- a/src/mainboard/google/rambi/smihandler.c
+++ b/src/mainboard/google/rambi/smihandler.c
@@ -84,7 +84,8 @@ void mainboard_smi_sleep(uint8_t slp_typ)
 	google_chromeec_set_sci_mask(0);
 
 	/* Clear pending events that may trigger immediate wake */
-	while (google_chromeec_get_event() != 0);
+	while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
+		;
 }
 
 int mainboard_smi_apmc(uint8_t apmc)
@@ -93,13 +94,15 @@ int mainboard_smi_apmc(uint8_t apmc)
 	case APM_CNT_ACPI_ENABLE:
 		google_chromeec_set_smi_mask(0);
 		/* Clear all pending events */
-		while (google_chromeec_get_event() != 0);
+		while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
+			;
 		google_chromeec_set_sci_mask(MAINBOARD_EC_SCI_EVENTS);
 		break;
 	case APM_CNT_ACPI_DISABLE:
 		google_chromeec_set_sci_mask(0);
 		/* Clear all pending events */
-		while (google_chromeec_get_event() != 0);
+		while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
+			;
 		google_chromeec_set_smi_mask(MAINBOARD_EC_SMI_EVENTS);
 		break;
 	}
diff --git a/src/mainboard/google/slippy/ec.c b/src/mainboard/google/slippy/ec.c
index 5761a7c579..a3ee95bd0b 100644
--- a/src/mainboard/google/slippy/ec.c
+++ b/src/mainboard/google/slippy/ec.c
@@ -22,7 +22,7 @@ void mainboard_ec_init(void)
 	google_chromeec_events_init(&info, s3_wakeup);
 	if (s3_wakeup) {
 		/* Clear pending events. */
-		while (google_chromeec_get_event() != 0)
+		while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
 			;
 	}
 
diff --git a/src/mainboard/google/slippy/smihandler.c b/src/mainboard/google/slippy/smihandler.c
index 81fcb0aafa..16a1b18b7a 100644
--- a/src/mainboard/google/slippy/smihandler.c
+++ b/src/mainboard/google/slippy/smihandler.c
@@ -100,7 +100,8 @@ void mainboard_smi_sleep(u8 slp_typ)
 	google_chromeec_set_sci_mask(0);
 
 	/* Clear pending events that may trigger immediate wake */
-	while (google_chromeec_get_event() != 0);
+	while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
+		;
 }
 
 int mainboard_smi_apmc(u8 apmc)
@@ -109,13 +110,15 @@ int mainboard_smi_apmc(u8 apmc)
 	case APM_CNT_ACPI_ENABLE:
 		google_chromeec_set_smi_mask(0);
 		/* Clear all pending events */
-		while (google_chromeec_get_event() != 0);
+		while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
+			;
 		google_chromeec_set_sci_mask(MAINBOARD_EC_SCI_EVENTS);
 		break;
 	case APM_CNT_ACPI_DISABLE:
 		google_chromeec_set_sci_mask(0);
 		/* Clear all pending events */
-		while (google_chromeec_get_event() != 0);
+		while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
+			;
 		google_chromeec_set_smi_mask(MAINBOARD_EC_SMI_EVENTS);
 		break;
 	}
diff --git a/src/mainboard/intel/strago/smihandler.c b/src/mainboard/intel/strago/smihandler.c
index fc77103537..e953ccd531 100644
--- a/src/mainboard/intel/strago/smihandler.c
+++ b/src/mainboard/intel/strago/smihandler.c
@@ -112,7 +112,7 @@ void mainboard_smi_sleep(uint8_t slp_typ)
 	google_chromeec_set_sci_mask(0);
 
 	/* Clear pending events that may trigger immediate wake */
-	while (google_chromeec_get_event() != 0)
+	while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
 		;
 
 	/* Set LPC lines to low power in S3/S5. */
@@ -126,14 +126,14 @@ int mainboard_smi_apmc(uint8_t apmc)
 	case APM_CNT_ACPI_ENABLE:
 		google_chromeec_set_smi_mask(0);
 		/* Clear all pending events */
-		while (google_chromeec_get_event() != 0)
+		while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
 			;
 		google_chromeec_set_sci_mask(MAINBOARD_EC_SCI_EVENTS);
 		break;
 	case APM_CNT_ACPI_DISABLE:
 		google_chromeec_set_sci_mask(0);
 		/* Clear all pending events */
-		while (google_chromeec_get_event() != 0)
+		while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
 			;
 		google_chromeec_set_smi_mask(MAINBOARD_EC_SMI_EVENTS);
 		break;