From 2c7589af3c4dee844e6a4174f2aa8996cf837604 Mon Sep 17 00:00:00 2001 From: Stephen Barber Date: Tue, 9 Jun 2015 13:04:45 +0200 Subject: mfd: cros_ec: add proto v3 skeleton Add support in cros_ec.c to handle EC host command protocol v3. For v3+, probe for maximum shared protocol version and max request, response, and passthrough sizes. For now, this will always fall back to v2, since there is no bus-specific code for handling proto v3 packets. Signed-off-by: Stephen Barber Signed-off-by: Javier Martinez Canillas Reviewed-by: Gwendal Grignou Tested-by: Gwendal Grignou Tested-by: Heiko Stuebner Acked-by: Lee Jones Acked-by: Olof Johansson Signed-off-by: Lee Jones --- drivers/mfd/cros_ec_spi.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers/mfd/cros_ec_spi.c') diff --git a/drivers/mfd/cros_ec_spi.c b/drivers/mfd/cros_ec_spi.c index 573730f..04da2f2 100644 --- a/drivers/mfd/cros_ec_spi.c +++ b/drivers/mfd/cros_ec_spi.c @@ -361,10 +361,13 @@ static int cros_ec_spi_probe(struct spi_device *spi) ec_dev->priv = ec_spi; ec_dev->irq = spi->irq; ec_dev->cmd_xfer = cros_ec_cmd_xfer_spi; + ec_dev->pkt_xfer = NULL; ec_dev->ec_name = ec_spi->spi->modalias; ec_dev->phys_name = dev_name(&ec_spi->spi->dev); - ec_dev->din_size = EC_MSG_BYTES + EC_MSG_PREAMBLE_COUNT; - ec_dev->dout_size = EC_MSG_BYTES; + ec_dev->din_size = EC_MSG_PREAMBLE_COUNT + + sizeof(struct ec_host_response) + + sizeof(struct ec_response_get_protocol_info); + ec_dev->dout_size = sizeof(struct ec_host_request); err = cros_ec_register(ec_dev); if (err) { -- cgit v1.1