Re: [PATCH v3] usb: host: xhci-plat: Iterate over parent nodes for finding quirks

From: Mathias Nyman
Date: Mon Aug 06 2018 - 09:55:45 EST


On 06.08.2018 16:04, Anurag Kumar Vulisha wrote:
In xhci_plat_probe() both sysdev and pdev->dev are being used
for finding quirks. There are some drivers(like dwc3 host.c)
which adds quirks(like usb3-lpm-capable) into pdev and the logic
present in xhci_plat_probe() checks for quirks in either sysdev
or pdev for finding the quirks. Because of this logic, some of
the quirks are getting missed(usb3-lpm-capable quirk added by dwc3
host.c driver is getting missed).This patch fixes this by iterating
over all the available parents for finding the quirks. In this way
all the quirks which are present in child or parent are correctly
updated.

Signed-off-by: Anurag Kumar Vulisha <anurag.kumar.vulisha@xxxxxxxxxx>
---
Changes in v3:
1. As Mathias suggested, moved the position of reading devicetree
property "imod-interval-ns" into for loop

Changes in v2:
1. As suggested by Mathias, restoring immod_interval changes to
default
---

Thanks, adding to queue

-Mathias