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Message-Id: <20210203021539.745239-2-pmalani@chromium.org> Date: Tue, 2 Feb 2021 18:15:39 -0800 From: Prashant Malani <pmalani@...omium.org> To: linux-kernel@...r.kernel.org Cc: bleung@...omium.org, Prashant Malani <pmalani@...omium.org>, Enric Balletbo i Serra <enric.balletbo@...labora.com>, Guenter Roeck <groeck@...omium.org>, "Gustavo A. R. Silva" <gustavoars@...nel.org>, Mark Brown <broonie@...nel.org>, Pi-Hsun Shih <pihsun@...omium.org>, Utkarsh Patel <utkarsh.h.patel@...el.com> Subject: [PATCH v2 2/2] platform/chrome: cros_ec_typec: Clear Type C disc events Clear USB Type C discovery events from the Chrome EC once they've been successfully handled. Signed-off-by: Prashant Malani <pmalani@...omium.org> --- Changes in v2: - No changes. drivers/platform/chrome/cros_ec_typec.c | 28 +++++++++++++++++++++++-- 1 file changed, 26 insertions(+), 2 deletions(-) diff --git a/drivers/platform/chrome/cros_ec_typec.c b/drivers/platform/chrome/cros_ec_typec.c index e724a5eaef1c..f3bdb87d6dce 100644 --- a/drivers/platform/chrome/cros_ec_typec.c +++ b/drivers/platform/chrome/cros_ec_typec.c @@ -867,6 +867,18 @@ static int cros_typec_handle_sop_disc(struct cros_typec_data *typec, int port_nu 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; @@ -887,8 +899,14 @@ static void cros_typec_handle_status(struct cros_typec_data *typec, int port_num ret = cros_typec_handle_sop_disc(typec, port_num); 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.events & PD_STATUS_EVENT_SOP_PRIME_DISC_DONE && @@ -896,8 +914,14 @@ static void cros_typec_handle_status(struct cros_typec_data *typec, int port_num ret = cros_typec_handle_sop_prime_disc(typec, port_num); 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); + } } } -- 2.30.0.365.g02bc693789-goog
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