linux-kernel - [PATCH 6/6] platform/chrome: cros_ec_typec: Set opmode to PD on SOP connected

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Message-Id: <20210129061406.2680146-7-bleung@chromium.org>
Date:   Thu, 28 Jan 2021 22:14:06 -0800
From:   Benson Leung <bleung@...omium.org>
To:     heikki.krogerus@...ux.intel.com, enric.balletbo@...labora.com,
        pmalani@...omium.org, gregkh@...uxfoundation.org,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     groeck@...omium.org, bleung@...gle.com, bleung@...omium.org
Subject: [PATCH 6/6] platform/chrome: cros_ec_typec: Set opmode to PD on SOP connected

When SOP Discovery is done, set the opmode to PD if status indicates
SOP is connected.

SOP connected indicates a PD contract is in place, and is a solid
indication we have transitioned to PD power negotiation, either as
source or sink.

Signed-off-by: Benson Leung <bleung@...omium.org>
---
 drivers/platform/chrome/cros_ec_typec.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/platform/chrome/cros_ec_typec.c b/drivers/platform/chrome/cros_ec_typec.c
index 6bc6fafd54a4..a7778258d0a0 100644
--- a/drivers/platform/chrome/cros_ec_typec.c
+++ b/drivers/platform/chrome/cros_ec_typec.c
@@ -900,6 +900,9 @@ static void cros_typec_handle_status(struct cros_typec_data *typec, int port_num
 			dev_err(typec->dev, "Couldn't parse SOP Disc data, port: %d\n", port_num);
 		else
 			typec->ports[port_num]->sop_disc_done = true;
+
+		if (resp.sop_connected)
+			typec_set_pwr_opmode(typec->ports[port_num]->port, TYPEC_PWR_MODE_PD);
 	}
 
 	if (resp.events & PD_STATUS_EVENT_SOP_PRIME_DISC_DONE &&
-- 
2.30.0.365.g02bc693789-goog