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platform/chrome: cros_ec_typec: Clear Type C disc events

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Clear USB Type C discovery events from the Chrome EC once they've been
successfully handled.

Signed-off-by: Prashant Malani <pmalani@chromium.org>
Reported-by: Benson Leung <bleung@chromium.org>
Tested-by: Benson Leung <bleung@chromium.org>
Link: https://lore.kernel.org/r/20210203021539.745239-2-pmalani@chromium.org
Signed-off-by: Benson Leung <bleung@chromium.org>
This commit is contained in:
Prashant Malani 2021-02-02 18:15:39 -08:00 committed by Benson Leung
parent b64afd949e
commit c8ec21c6d2
No known key found for this signature in database
GPG Key ID: 736DAA268733B0C2
1 changed files with 26 additions and 3 deletions
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29
drivers/platform/chrome/cros_ec_typec.c
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@ -870,6 +870,18 @@ disc_exit:
return ret;
}
static int cros_typec_send_clear_event(struct cros_typec_data *typec, int port_num, u32 events_mask)
{
struct ec_params_typec_control req = {
.port = port_num,
.command = TYPEC_CONTROL_COMMAND_CLEAR_EVENTS,
.clear_events_mask = events_mask,
};
return cros_typec_ec_command(typec, 0, EC_CMD_TYPEC_CONTROL, &req,
sizeof(req), NULL, 0);
}
static void cros_typec_handle_status(struct cros_typec_data *typec, int port_num)
{
struct ec_response_typec_status resp;
@ -894,9 +906,14 @@ static void cros_typec_handle_status(struct cros_typec_data *typec, int port_num
ret = cros_typec_handle_sop_disc(typec, port_num, sop_revision);
if (ret < 0)
dev_err(typec->dev, "Couldn't parse SOP Disc data, port: %d\n", port_num);
else
else {
typec->ports[port_num]->sop_disc_done = true;
ret = cros_typec_send_clear_event(typec, port_num,
PD_STATUS_EVENT_SOP_DISC_DONE);
if (ret < 0)
dev_warn(typec->dev,
"Failed SOP Disc event clear, port: %d\n", port_num);
}
if (resp.sop_connected)
typec_set_pwr_opmode(typec->ports[port_num]->port, TYPEC_PWR_MODE_PD);
}
@ -910,8 +927,14 @@ static void cros_typec_handle_status(struct cros_typec_data *typec, int port_num
ret = cros_typec_handle_sop_prime_disc(typec, port_num, sop_prime_revision);
if (ret < 0)
dev_err(typec->dev, "Couldn't parse SOP' Disc data, port: %d\n", port_num);
else
else {
typec->ports[port_num]->sop_prime_disc_done = true;
ret = cros_typec_send_clear_event(typec, port_num,
PD_STATUS_EVENT_SOP_PRIME_DISC_DONE);
if (ret < 0)
dev_warn(typec->dev,
"Failed SOP Disc event clear, port: %d\n", port_num);
}
}
}