Thread (18 messages) 18 messages, 4 authors, 2021-03-06
STALE1917d
Revisions (2)
  1. v1 [diff vs current]
  2. v2 current

[PATCH v2 2/2] usb: host: ehci-platform: add ignore_oc DT support

From: Álvaro Fernández Rojas <hidden>
Date: 2021-02-23 16:17:55
Also in: linux-devicetree, linux-usb, lkml
Subsystem: the rest, usb ehci driver, usb subsystem · Maintainers: Linus Torvalds, Alan Stern, Greg Kroah-Hartman

Over-current reporting isn't supported on some platforms such as bcm63xx.
These devices will incorrectly report over-current if this flag isn't properly
activated.

Signed-off-by: Álvaro Fernández Rojas <redacted>
---
 v2: change flag name and improve documentation as suggested by Alan Stern.

 drivers/usb/host/ehci-platform.c | 3 +++
 1 file changed, 3 insertions(+)
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
index a48dd3fac153..2c587e31d010 100644
--- a/drivers/usb/host/ehci-platform.c
+++ b/drivers/usb/host/ehci-platform.c
@@ -286,6 +286,9 @@ static int ehci_platform_probe(struct platform_device *dev)
 		if (of_property_read_bool(dev->dev.of_node, "big-endian"))
 			ehci->big_endian_mmio = ehci->big_endian_desc = 1;
 
+		if (of_property_read_bool(dev->dev.of_node, "spurious-oc"))
+			ehci->ignore_oc = 1;
+
 		if (of_property_read_bool(dev->dev.of_node,
 					  "needs-reset-on-resume"))
 			priv->reset_on_resume = true;
-- 
2.20.1


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