[coreboot-gerrit] Change in coreboot[master]: ec/google/chromeec: Add helper to request AP reset

[Karthik Ramasubramanian (Code Review)]

Karthik Ramasubramanian has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/44188 )

Change subject: ec/google/chromeec: Add helper to request AP reset
......................................................................

ec/google/chromeec: Add helper to request AP reset

Add a helper function to initiate AP reset through Embedded Controller
(EC).

BUG=b:162290856
TEST=Ensure that the EC resets AP on boards where the command is
supported.

Change-Id: I01d7dfec72a8a3f6d2c4844bc062672e494860d8
Signed-off-by: Karthikeyan Ramasubramanian 
---
M src/ec/google/chromeec/ec.c
M src/ec/google/chromeec/ec.h
2 files changed, 25 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/88/44188/1

diff --git a/src/ec/google/chromeec/ec.c b/src/ec/google/chromeec/ec.c
index e66e3b1..40285dc 100644
--- a/src/ec/google/chromeec/ec.c
+++ b/src/ec/google/chromeec/ec.c
@@ -1539,3 +1539,21 @@

return 0;
 }
+
+int google_chromeec_ap_reset(void)
+{
+	struct chromeec_command cmd = {
+		.cmd_code = EC_CMD_AP_RESET,
+		.cmd_version = 0,
+		.cmd_data_in = NULL,
+		.cmd_size_in = 0,
+		.cmd_data_out = NULL,
+		.cmd_size_out = 0,
+		.cmd_dev_index = 0,
+	};
+
+	if (google_chromeec_command(&cmd))
+		return -1;
+
+	return 0;
+}
diff --git a/src/ec/google/chromeec/ec.h b/src/ec/google/chromeec/ec.h
index aead5f7..9d4e588 100644
--- a/src/ec/google/chromeec/ec.h
+++ b/src/ec/google/chromeec/ec.h
@@ -337,6 +337,13 @@
  */
 int google_chromeec_get_keybd_config(struct ec_response_keybd_config *keybd);

+/**
+ * Send EC command to perform AP reset
+ *
+ * @return	0 on success, -1 on error
+ */
+int google_chromeec_ap_reset(void);
+
 #if CONFIG(HAVE_ACPI_TABLES)
 /**
  * Writes USB Type-C PD related information to the SSDT