[PATCH v3 08/15] usb: ehci: initialize periodic_queue_dma

[Luca Lauro via B4 Relay <devnull+famlauro93l.gmail.com@kernel.org>]

From: Luca Lauro <famlauro93l@gmail.com>

Store the DMA address of the periodic queue head in
ehci->periodic_queue_dma. Without this initialization the periodic
schedule may reference an invalid address.

Signed-off-by: Luca Lauro <famlauro93l@gmail.com>
---
 drivers/usb/host/ehci-hcd.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 51b9e52a4f..a4832bb3ff 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -897,6 +897,8 @@ static int ehci_init(struct usb_host *host)
 	periodic->qt_next = cpu_to_hc32(QT_NEXT_TERMINATE);
 	periodic->qt_altnext = cpu_to_hc32(QT_NEXT_TERMINATE);
 
+	ehci->periodic_queue_dma = ehci_qh_dma(ehci, periodic);
+
 	/*
 	 * Step 2: Setup frame-list: Every microframe, USB tries the same list.
 	 *         In particular, device specifications on polling frequency
@@ -1442,11 +1444,14 @@ static int ehci_probe(struct device *dev)
 	if (ret)
 		return ret;
 
-	ret = clk_bulk_get_all_enabled(dev, &clks);
+	ret = clk_bulk_get_all(dev, &clks);
 	if (ret < 0)
 		return ret;
 
 	num_clocks = ret;
+	ret = clk_bulk_enable(num_clocks, clks);
+	if (ret)
+		return ret;
 
 	iores = dev_request_mem_resource(dev, 0);
 	if (IS_ERR(iores))

-- 
2.47.3