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USB: chipidea: msm: fix ulpi-node lookup

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commit 964728f9f407eca0b417fdf8e784b7a76979490c upstream.

Fix child-node lookup during probe, which ended up searching the whole
device tree depth-first starting at the parent rather than just matching
on its children.

Note that the original premature free of the parent node has already
been fixed separately, but that fix was apparently never backported to
stable.

Fixes: 47654a162081 ("usb: chipidea: msm: Restore wrapper settings after reset")
Fixes: b74c43156c0c ("usb: chipidea: msm: ci_hdrc_msm_probe() missing of_node_get()")
Cc: Stephen Boyd <stephen.boyd@linaro.org>
Cc: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold 2017-11-13 11:12:58 +01:00 committed by Greg Kroah-Hartman
parent 2d6483bf78
commit 1fcd9859a4
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/chipidea/ci_hdrc_msm.c
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@ -251,7 +251,7 @@ static int ci_hdrc_msm_probe(struct platform_device *pdev)
if (ret)
goto err_mux;
ulpi_node = of_find_node_by_name(of_node_get(pdev->dev.of_node), "ulpi");
ulpi_node = of_get_child_by_name(pdev->dev.of_node, "ulpi");
if (ulpi_node) {
phy_node = of_get_next_available_child(ulpi_node, NULL);
ci->hsic = of_device_is_compatible(phy_node, "qcom,usb-hsic-phy");