Thread (29 messages) 29 messages, 5 authors, 2021-09-20
STALE1715d LANDED: 1 (0M)
Revisions (3)
  1. v1 [diff vs current]
  2. v2 [diff vs current]
  3. v4 current

[PATCH v4 2/2] usb: musb: mediatek: Expose role-switch control to userspace

From: Sungbo Eo <hidden>
Date: 2021-08-30 15:59:46
Also in: linux-arm-kernel, linux-devicetree, linux-usb, lkml
Subsystem: musb multipoint high speed dual-role controller, the rest, usb subsystem · Maintainers: Bin Liu, Linus Torvalds, Greg Kroah-Hartman

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

Signed-off-by: Sungbo Eo <redacted>
Tested-by: Frank Wunderlich <redacted>
---
 drivers/usb/musb/mediatek.c | 1 +
 1 file changed, 1 insertion(+)
diff --git a/drivers/usb/musb/mediatek.c b/drivers/usb/musb/mediatek.c
index 6b92d037d8fc..f5d97eb84cb5 100644
--- a/drivers/usb/musb/mediatek.c
+++ b/drivers/usb/musb/mediatek.c
@@ -185,6 +185,7 @@ static int mtk_otg_switch_init(struct mtk_glue *glue)
 
 	role_sx_desc.set = musb_usb_role_sx_set;
 	role_sx_desc.get = musb_usb_role_sx_get;
+	role_sx_desc.allow_userspace_control = true;
 	role_sx_desc.fwnode = dev_fwnode(glue->dev);
 	role_sx_desc.driver_data = glue;
 	glue->role_sw = usb_role_switch_register(glue->dev, &role_sx_desc);
-- 
2.33.0


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