linux-kernel - [PATCH] usb: host: xhci: Set the controller as wakeup capable

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Date:   Thu, 4 Oct 2018 12:24:50 +0530
From:   Anurag Kumar Vulisha <anurag.kumar.vulisha@...inx.com>
To:     <mathias.nyman@...el.com>, <gregkh@...uxfoundation.org>
CC:     <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <v.anuragkumar@...il.com>, <apandey@...inx.com>,
        Anurag Kumar Vulisha <anurag.kumar.vulisha@...inx.com>
Subject: [PATCH] usb: host: xhci: Set the controller as wakeup capable

This patch modifies the xhci_plat_probe() to set the
controller as wakeup capable if "wakeup-source" is
added into the device node.

Signed-off-by: Anurag Kumar Vulisha <anurag.kumar.vulisha@...inx.com>
---
 drivers/usb/host/xhci-plat.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 94e9392..602e95c 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -210,6 +210,10 @@ static int xhci_plat_probe(struct platform_device *pdev)
 	pm_runtime_enable(&pdev->dev);
 	pm_runtime_get_noresume(&pdev->dev);
 
+	/* Set the controller as wakeup capable */
+	if (device_property_read_bool(&pdev->dev, "wakeup-source"))
+		device_set_wakeup_capable(&pdev->dev, true);
+
 	hcd = __usb_create_hcd(driver, sysdev, &pdev->dev,
 			       dev_name(&pdev->dev), NULL);
 	if (!hcd) {
-- 
2.1.1