linux-kernel - [PATCH 2/2] usb: chipidea: Enable user-space triggered role-switching

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Message-Id: <20200504224346.613377-3-bryan.odonoghue@linaro.org>
Date:   Mon,  4 May 2020 23:43:46 +0100
From:   Bryan O'Donoghue <bryan.odonoghue@...aro.org>
To:     Peter.Chen@....com, gregkh@...uxfoundation.org,
        linux-usb@...r.kernel.org
Cc:     linux-arm-msm@...r.kernel.org,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Jun Li <jun.li@....com>, Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>, linux-kernel@...r.kernel.org,
        Stephen Boyd <swboyd@...omium.org>
Subject: [PATCH 2/2] usb: chipidea: Enable user-space triggered role-switching

The flag provided by the USB role-switch logic allow_userspace_control
allows user-space to trigger a role-switch. Several other USB controller
drivers already enable this feature. Let's switch it on for the chipidea
core now also.

Cc: Peter Chen <Peter.Chen@....com>
Cc: Jun Li <jun.li@....com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Liam Girdwood <lgirdwood@...il.com>
Cc: Mark Brown <broonie@...nel.org>
Cc: linux-usb@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Cc: Stephen Boyd <swboyd@...omium.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
---
 drivers/usb/chipidea/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index ae0bdc036464..5f31fda92292 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -666,6 +666,7 @@ static int ci_usb_role_switch_set(struct usb_role_switch *sw,
 static struct usb_role_switch_desc ci_role_switch = {
 	.set = ci_usb_role_switch_set,
 	.get = ci_usb_role_switch_get,
+	.allow_userspace_control = true,
 };
 
 static int ci_get_platdata(struct device *dev,
-- 
2.25.1