linux-kernel - [RFC PATCH v2 1/4] usb: typec: Do not check if connected when setting roles

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Date:	Wed, 17 Aug 2016 15:04:33 -0700
From:	Guenter Roeck <groeck@...omium.org>
To:	Felipe Balbi <felipe.balbi@...ux.intel.com>
Cc:	Chandra Sekhar Anagani <chandra.sekhar.anagani@...el.com>,
	Bruce Ashfield <bruce.ashfield@...driver.com>,
	Bin Gao <bin.gao@...el.com>,
	Pranav Tipnis <pranav.tipnis@...el.com>,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
	Guenter Roeck <groeck@...omium.org>
Subject: [RFC PATCH v2 1/4] usb: typec: Do not check if connected when setting roles

The connection status can change after the connection status was
checked. Leave it up to the driver to perform the necessary checks.

Signed-off-by: Guenter Roeck <groeck@...omium.org>
---
v2: Rebased to v5 of Type-C class code

 drivers/usb/typec/typec.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/usb/typec/typec.c b/drivers/usb/typec/typec.c
index 52a0431253a8..fa0261dad3b7 100644
--- a/drivers/usb/typec/typec.c
+++ b/drivers/usb/typec/typec.c
@@ -785,9 +785,6 @@ current_data_role_store(struct device *dev, struct device_attribute *attr,
 		return -EOPNOTSUPP;
 	}
 
-	if (!port->connected)
-		return size;
-
 	ret = sysfs_strmatch(typec_data_roles, ARRAY_SIZE(typec_data_roles),
 			     buf);
 	if (ret < 0)
@@ -851,9 +848,6 @@ static ssize_t current_power_role_store(struct device *dev,
 		return -EIO;
 	}
 
-	if (!port->connected)
-		return size;
-
 	ret = sysfs_strmatch(typec_roles, ARRAY_SIZE(typec_roles), buf);
 	if (ret < 0)
 		return ret;
-- 
2.8.0.rc3.226.g39d4020