ec/google/chromeec: Update google_chromeec_get_board_version prototype

The helper function to get the board version from EC returns 0 on
failure. But 0 is also a valid board version. Update the helper function
to return -1 on failure and update the use-cases.

BUG=b:114001972,b:114677884,b:114677887

Change-Id: I93e8dbce2ff26e76504b132055985f53cbf07d31
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Tested-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/28576
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Jett Rink <jettrink@google.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/src/ec/google/chromeec/ec.h b/src/ec/google/chromeec/ec.h
index 2c6f1d6b8c..419870c35c 100644
--- a/src/ec/google/chromeec/ec.h
+++ b/src/ec/google/chromeec/ec.h
@@ -46,7 +46,16 @@ uint64_t google_chromeec_get_device_current_events(void);
 
 int google_chromeec_check_feature(int feature);
 uint8_t google_chromeec_calc_checksum(const uint8_t *data, int size);
-u16 google_chromeec_get_board_version(void);
+
+/**
+ * google_chromeec_get_board_version() - Get the board version
+ * @version: Out parameter to retrieve the board Version
+ *
+ * Return: 0 on success or -1 on failure/error.
+ *
+ * This function is used to get the board version information from EC.
+ */
+int google_chromeec_get_board_version(uint32_t *version);
 u32 google_chromeec_get_sku_id(void);
 int google_chromeec_set_sku_id(u32 skuid);
 uint64_t  google_chromeec_get_events_b(void);