diff options
| author | Duncan Laurie <dlaurie@google.com> | 2019-03-15 17:11:10 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-03-18 09:14:36 +0000 |
| commit | a436877573da335de776b262415b6997daadb54a (patch) | |
| tree | d36a881eebaf2632dfc97f073d2539251f701d5f | |
| parent | af39c82a36119158ffcee955cf83d880c9560e5f (diff) | |
ec/google/wilco: Fix handling of commands that do not respond
If the command does not respond the driver should not wait for
it to complete before returning.
Tested with SMI debug enabled to ensure that the final command
does not report a failure.
Change-Id: I7c1bfa19a92e8332ac1aa6ff95f94ff4cbdf789d
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31919
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
| -rw-r--r-- | src/ec/google/wilco/mailbox.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/src/ec/google/wilco/mailbox.c b/src/ec/google/wilco/mailbox.c index 1c38a5b880..d47290ccaf 100644 --- a/src/ec/google/wilco/mailbox.c +++ b/src/ec/google/wilco/mailbox.c @@ -155,12 +155,6 @@ static int wilco_ec_transfer(struct wilco_ec_message *msg) /* Start the command */ outb(EC_MAILBOX_START_COMMAND, CONFIG_EC_BASE_HOST_COMMAND); - /* Wait for it to complete */ - if (wilco_ec_response_timed_out()) { - printk(BIOS_ERR, "%s: response timed out\n", __func__); - return -1; - } - /* Some commands will put the EC into a state where it cannot respond */ if (msg->type == WILCO_EC_MSG_NO_RESPONSE) { printk(BIOS_DEBUG, "%s: EC does not respond to this command\n", @@ -168,6 +162,12 @@ static int wilco_ec_transfer(struct wilco_ec_message *msg) return 0; } + /* Wait for it to complete */ + if (wilco_ec_response_timed_out()) { + printk(BIOS_ERR, "%s: response timed out\n", __func__); + return -1; + } + /* Check result */ msg->result = inb(CONFIG_EC_BASE_HOST_DATA); if (msg->result != 0) { |