diff options
Diffstat (limited to 'drivers/platform/chrome/wilco_ec/mailbox.c')
| -rw-r--r-- | drivers/platform/chrome/wilco_ec/mailbox.c | 21 |
1 files changed, 5 insertions, 16 deletions
diff --git a/drivers/platform/chrome/wilco_ec/mailbox.c b/drivers/platform/chrome/wilco_ec/mailbox.c index 7fb58b487963..ced1f9f3dcee 100644 --- a/drivers/platform/chrome/wilco_ec/mailbox.c +++ b/drivers/platform/chrome/wilco_ec/mailbox.c @@ -119,7 +119,6 @@ static int wilco_ec_transfer(struct wilco_ec_device *ec, struct wilco_ec_response *rs; u8 checksum; u8 flag; - size_t size; /* Write request header, then data */ cros_ec_lpc_io_bytes_mec(MEC_IO_WRITE, 0, sizeof(*rq), (u8 *)rq); @@ -148,21 +147,11 @@ static int wilco_ec_transfer(struct wilco_ec_device *ec, return -EIO; } - /* - * The EC always returns either EC_MAILBOX_DATA_SIZE or - * EC_MAILBOX_DATA_SIZE_EXTENDED bytes of data, so we need to - * calculate the checksum on **all** of this data, even if we - * won't use all of it. - */ - if (msg->flags & WILCO_EC_FLAG_EXTENDED_DATA) - size = EC_MAILBOX_DATA_SIZE_EXTENDED; - else - size = EC_MAILBOX_DATA_SIZE; - /* Read back response */ rs = ec->data_buffer; checksum = cros_ec_lpc_io_bytes_mec(MEC_IO_READ, 0, - sizeof(*rs) + size, (u8 *)rs); + sizeof(*rs) + EC_MAILBOX_DATA_SIZE, + (u8 *)rs); if (checksum) { dev_dbg(ec->dev, "bad packet checksum 0x%02x\n", rs->checksum); return -EBADMSG; @@ -173,9 +162,9 @@ static int wilco_ec_transfer(struct wilco_ec_device *ec, return -EBADMSG; } - if (rs->data_size != size) { - dev_dbg(ec->dev, "unexpected packet size (%u != %zu)", - rs->data_size, size); + if (rs->data_size != EC_MAILBOX_DATA_SIZE) { + dev_dbg(ec->dev, "unexpected packet size (%u != %u)", + rs->data_size, EC_MAILBOX_DATA_SIZE); return -EMSGSIZE; } |