* if no record
* @end_of_msg_delay: used to set the delay_usecs on the spi_transfer that
* is sent when we want to turn off CS at the end of a transaction.
- * @lock: mutex to ensure only one user of cros_ec_command_spi_xfer at a time
+ * @lock: mutex to ensure only one user of cros_ec_cmd_xfer_spi at a time
*/
struct cros_ec_spi {
struct spi_device *spi;
}
/**
- * cros_ec_command_spi_xfer - Transfer a message over SPI and receive the reply
+ * cros_ec_cmd_xfer_spi - Transfer a message over SPI and receive the reply
*
* @ec_dev: ChromeOS EC device
* @ec_msg: Message to transfer
*/
-static int cros_ec_command_spi_xfer(struct cros_ec_device *ec_dev,
- struct cros_ec_msg *ec_msg)
+static int cros_ec_cmd_xfer_spi(struct cros_ec_device *ec_dev,
+ struct cros_ec_command *ec_msg)
{
struct cros_ec_spi *ec_spi = ec_dev->priv;
struct spi_transfer trans;
/* Get the response */
if (!ret) {
ret = cros_ec_spi_receive_response(ec_dev,
- ec_msg->in_len + EC_MSG_TX_PROTO_BYTES);
+ ec_msg->insize + EC_MSG_TX_PROTO_BYTES);
} else {
dev_err(ec_dev->dev, "spi transfer failed: %d\n", ret);
}
/* check response error code */
ptr = ec_dev->din;
if (ptr[0]) {
+ if (ptr[0] == EC_RES_IN_PROGRESS) {
+ dev_dbg(ec_dev->dev, "command 0x%02x in progress\n",
+ ec_msg->command);
+ ret = -EAGAIN;
+ goto exit;
+ }
dev_warn(ec_dev->dev, "command 0x%02x returned an error %d\n",
- ec_msg->cmd, ptr[0]);
+ ec_msg->command, ptr[0]);
debug_packet(ec_dev->dev, "in_err", ptr, len);
ret = -EINVAL;
goto exit;
}
len = ptr[1];
sum = ptr[0] + ptr[1];
- if (len > ec_msg->in_len) {
+ if (len > ec_msg->insize) {
dev_err(ec_dev->dev, "packet too long (%d bytes, expected %d)",
- len, ec_msg->in_len);
+ len, ec_msg->insize);
ret = -ENOSPC;
goto exit;
}
/* copy response packet payload and compute checksum */
for (i = 0; i < len; i++) {
sum += ptr[i + 2];
- if (ec_msg->in_len)
- ec_msg->in_buf[i] = ptr[i + 2];
+ if (ec_msg->insize)
+ ec_msg->indata[i] = ptr[i + 2];
}
sum &= 0xff;
cros_ec_spi_dt_probe(ec_spi, dev);
spi_set_drvdata(spi, ec_dev);
- ec_dev->name = "SPI";
ec_dev->dev = dev;
ec_dev->priv = ec_spi;
ec_dev->irq = spi->irq;
- ec_dev->command_xfer = cros_ec_command_spi_xfer;
+ ec_dev->cmd_xfer = cros_ec_cmd_xfer_spi;
ec_dev->ec_name = ec_spi->spi->modalias;
ec_dev->phys_name = dev_name(&ec_spi->spi->dev);
ec_dev->parent = &ec_spi->spi->dev;
return err;
}
+ device_init_wakeup(&spi->dev, true);
+
return 0;
}