linux-kernel - [PATCH v2 1/2] platform/chrome: cros_ec_typec: Send enum values to usb_role_switch_set

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Date:   Thu, 30 Jul 2020 15:56:08 -0700
From:   Azhar Shaikh <azhar.shaikh@...el.com>
To:     bleung@...omium.org, enric.balletbo@...labora.com,
        groeck@...omium.org, pmalani@...omium.org,
        linux-kernel@...r.kernel.org
Cc:     heikki.krogerus@...ux.intel.com, azhar.shaikh@...el.com,
        utkarsh.h.patel@...el.com, casey.g.bowman@...el.com,
        rajmohan.mani@...el.com
Subject: [PATCH v2 1/2] platform/chrome: cros_ec_typec: Send enum values to usb_role_switch_set_role()

usb_role_switch_set_role() has the second argument as enum for usb_role.
Currently depending upon the data role i.e. UFP(0) or DFP(1) is sent.
This eventually translates to USB_ROLE_NONE in case of UFP and
USB_ROLE_DEVICE in case of DFP. Correct this by sending correct enum
values as USB_ROLE_DEVICE in case of UFP and USB_ROLE_HOST in case of
DFP.

Fixes: 7e7def15fa4b ("platform/chrome: cros_ec_typec: Add USB mux control")

Signed-off-by: Azhar Shaikh <azhar.shaikh@...el.com>
Cc: Prashant Malani <pmalani@...omium.org>
Reviewed-by: Prashant Malani <pmalani@...omium.org>
---
 drivers/platform/chrome/cros_ec_typec.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/chrome/cros_ec_typec.c b/drivers/platform/chrome/cros_ec_typec.c
index 3eae01f4c9f7..eb4713b7ae14 100644
--- a/drivers/platform/chrome/cros_ec_typec.c
+++ b/drivers/platform/chrome/cros_ec_typec.c
@@ -590,7 +590,8 @@ static int cros_typec_port_update(struct cros_typec_data *typec, int port_num)
 		dev_warn(typec->dev, "Configure muxes failed, err = %d\n", ret);
 
 	return usb_role_switch_set_role(typec->ports[port_num]->role_sw,
-					!!(resp.role & PD_CTRL_RESP_ROLE_DATA));
+				       resp.role & PD_CTRL_RESP_ROLE_DATA
+				       ? USB_ROLE_HOST : USB_ROLE_DEVICE);
 }
 
 static int cros_typec_get_cmd_version(struct cros_typec_data *typec)
-- 
2.17.1