linux-kernel - [PATCH v3 5/7] usb: mtu3: expose role-switch control to userspace

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Date:   Mon, 17 Apr 2023 10:52:01 +0800
From:   Chunfeng Yun <chunfeng.yun@...iatek.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>
CC:     Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        <linux-usb@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Tianping Fang <tianping.fang@...iatek.com>
Subject: [PATCH v3 5/7] usb: mtu3: expose role-switch control to userspace

The allow_userspace_control flag enables manual role switch from userspace,
turn this feature on like several other USB DRD controller drivers.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
---
v3: no changes
v2: add Reviewed-by AngeloGioacchino
---
 drivers/usb/mtu3/mtu3_dr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/mtu3/mtu3_dr.c b/drivers/usb/mtu3/mtu3_dr.c
index 9b8aded3d95e..8191b7ed3852 100644
--- a/drivers/usb/mtu3/mtu3_dr.c
+++ b/drivers/usb/mtu3/mtu3_dr.c
@@ -294,6 +294,7 @@ static int ssusb_role_sw_register(struct otg_switch_mtk *otg_sx)
 	role_sx_desc.get = ssusb_role_sw_get;
 	role_sx_desc.fwnode = dev_fwnode(dev);
 	role_sx_desc.driver_data = ssusb;
+	role_sx_desc.allow_userspace_control = true;
 	otg_sx->role_sw = usb_role_switch_register(dev, &role_sx_desc);
 	if (IS_ERR(otg_sx->role_sw))
 		return PTR_ERR(otg_sx->role_sw);
-- 
2.18.0