115 static int cros_ec_spi_receive_response(struct cros_ec_device *ec_dev,  in cros_ec_spi_receive_response()  argument
118 	struct cros_ec_spi *ec_spi = ec_dev->priv;  in cros_ec_spi_receive_response()
133 		trans.rx_buf = ptr = ec_dev->din;  in cros_ec_spi_receive_response()
140 			dev_err(ec_dev->dev, "spi transfer failed: %d\n", ret);  in cros_ec_spi_receive_response()
146 				dev_dbg(ec_dev->dev, "msg found at %zd\n",  in cros_ec_spi_receive_response()
147 					ptr - ec_dev->din);  in cros_ec_spi_receive_response()
160 			dev_warn(ec_dev->dev, "EC failed to respond in time\n");  in cros_ec_spi_receive_response()
170 	BUG_ON(todo < 0 || todo > ec_dev->din_size);  in cros_ec_spi_receive_response()
172 	memmove(ec_dev->din, ptr, todo);  in cros_ec_spi_receive_response()
173 	ptr = ec_dev->din + todo;  in cros_ec_spi_receive_response()
174 	dev_dbg(ec_dev->dev, "need %d, got %d bytes from preamble\n",  in cros_ec_spi_receive_response()
187 		dev_dbg(ec_dev->dev, "loop, todo=%d, need_len=%d, ptr=%zd\n",  in cros_ec_spi_receive_response()
188 			todo, need_len, ptr - ec_dev->din);  in cros_ec_spi_receive_response()
198 		BUG_ON((u8 *)trans.rx_buf - ec_dev->din + todo >  in cros_ec_spi_receive_response()
199 				ec_dev->din_size);  in cros_ec_spi_receive_response()
202 			dev_err(ec_dev->dev, "spi transfer failed: %d\n", ret);  in cros_ec_spi_receive_response()
206 		debug_packet(ec_dev->dev, "interim", ptr, todo);  in cros_ec_spi_receive_response()
211 	dev_dbg(ec_dev->dev, "loop done, ptr=%zd\n", ptr - ec_dev->din);  in cros_ec_spi_receive_response()
222 static int cros_ec_cmd_xfer_spi(struct cros_ec_device *ec_dev,  in cros_ec_cmd_xfer_spi()  argument
225 	struct cros_ec_spi *ec_spi = ec_dev->priv;  in cros_ec_cmd_xfer_spi()
233 	len = cros_ec_prepare_tx(ec_dev, ec_msg);  in cros_ec_cmd_xfer_spi()
234 	dev_dbg(ec_dev->dev, "prepared, len=%d\n", len);  in cros_ec_cmd_xfer_spi()
246 	debug_packet(ec_dev->dev, "out", ec_dev->dout, len);  in cros_ec_cmd_xfer_spi()
248 	trans.tx_buf = ec_dev->dout;  in cros_ec_cmd_xfer_spi()
257 		ret = cros_ec_spi_receive_response(ec_dev,  in cros_ec_cmd_xfer_spi()
260 		dev_err(ec_dev->dev, "spi transfer failed: %d\n", ret);  in cros_ec_cmd_xfer_spi()
277 		dev_err(ec_dev->dev, "spi transfer failed: %d\n", ret);  in cros_ec_cmd_xfer_spi()
281 	ptr = ec_dev->din;  in cros_ec_cmd_xfer_spi()
285 	ret = cros_ec_check_result(ec_dev, ec_msg);  in cros_ec_cmd_xfer_spi()
292 		dev_err(ec_dev->dev, "packet too long (%d bytes, expected %d)",  in cros_ec_cmd_xfer_spi()
306 	debug_packet(ec_dev->dev, "in", ptr, len + 3);  in cros_ec_cmd_xfer_spi()
309 		dev_err(ec_dev->dev,  in cros_ec_cmd_xfer_spi()
338 	struct cros_ec_device *ec_dev;  in cros_ec_spi_probe()  local
352 	ec_dev = devm_kzalloc(dev, sizeof(*ec_dev), GFP_KERNEL);  in cros_ec_spi_probe()
353 	if (!ec_dev)  in cros_ec_spi_probe()
359 	spi_set_drvdata(spi, ec_dev);  in cros_ec_spi_probe()
360 	ec_dev->dev = dev;  in cros_ec_spi_probe()
361 	ec_dev->priv = ec_spi;  in cros_ec_spi_probe()
362 	ec_dev->irq = spi->irq;  in cros_ec_spi_probe()
363 	ec_dev->cmd_xfer = cros_ec_cmd_xfer_spi;  in cros_ec_spi_probe()
364 	ec_dev->ec_name = ec_spi->spi->modalias;  in cros_ec_spi_probe()
365 	ec_dev->phys_name = dev_name(&ec_spi->spi->dev);  in cros_ec_spi_probe()
366 	ec_dev->parent = &ec_spi->spi->dev;  in cros_ec_spi_probe()
367 	ec_dev->din_size = EC_MSG_BYTES + EC_MSG_PREAMBLE_COUNT;  in cros_ec_spi_probe()
368 	ec_dev->dout_size = EC_MSG_BYTES;  in cros_ec_spi_probe()
370 	err = cros_ec_register(ec_dev);  in cros_ec_spi_probe()
383 	struct cros_ec_device *ec_dev;  in cros_ec_spi_remove()  local
385 	ec_dev = spi_get_drvdata(spi);  in cros_ec_spi_remove()
386 	cros_ec_remove(ec_dev);  in cros_ec_spi_remove()
394 	struct cros_ec_device *ec_dev = dev_get_drvdata(dev);  in cros_ec_spi_suspend()  local
396 	return cros_ec_suspend(ec_dev);  in cros_ec_spi_suspend()
401 	struct cros_ec_device *ec_dev = dev_get_drvdata(dev);  in cros_ec_spi_resume()  local
403 	return cros_ec_resume(ec_dev);  in cros_ec_spi_resume()