linux-kernel - [PATCH 4.10 079/110] usb: host: xhci-plat: enable BROKEN

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Message-Id: <20170410164205.592942837@linuxfoundation.org>
Date:   Mon, 10 Apr 2017 18:43:10 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Felipe Balbi <balbi@...com>,
        Roger Quadros <rogerq@...com>,
        Mathias Nyman <mathias.nyman@...ux.intel.com>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 4.10 079/110] usb: host: xhci-plat: enable BROKEN_PED quirk if platform requested

4.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Felipe Balbi <balbi@...com>

[ Upstream commit 21939f003ad09355d9c975735750bb22aa37d8de ]

In case 'quirk-broken-port-ped' property is passed in via device property,
we should enable the corresponding BROKEN_PED quirk flag for XHCI core.

[rogerq@...com] Updated code from platform data to device property
and added DT binding.

Signed-off-by: Felipe Balbi <balbi@...com>
Signed-off-by: Roger Quadros <rogerq@...com>
Signed-off-by: Mathias Nyman <mathias.nyman@...ux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 Documentation/devicetree/bindings/usb/usb-xhci.txt |    1 +
 drivers/usb/host/xhci-plat.c                       |    3 +++
 2 files changed, 4 insertions(+)

--- a/Documentation/devicetree/bindings/usb/usb-xhci.txt
+++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt
@@ -27,6 +27,7 @@ Required properties:
 Optional properties:
   - clocks: reference to a clock
   - usb3-lpm-capable: determines if platform is USB3 LPM capable
+  - quirk-broken-port-ped: set if the controller has broken port disable mechanism
 
 Example:
 	usb@...31000 {
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -232,6 +232,9 @@ static int xhci_plat_probe(struct platfo
 	if (device_property_read_bool(&pdev->dev, "usb3-lpm-capable"))
 		xhci->quirks |= XHCI_LPM_SUPPORT;
 
+	if (device_property_read_bool(&pdev->dev, "quirk-broken-port-ped"))
+		xhci->quirks |= XHCI_BROKEN_PORT_PED;
+
 	hcd->usb_phy = devm_usb_get_phy_by_phandle(&pdev->dev, "usb-phy", 0);
 	if (IS_ERR(hcd->usb_phy)) {
 		ret = PTR_ERR(hcd->usb_phy);