RE: [PATCH v2] usb: host: xhci-plat: Iterate over parent nodes for finding quirks

From: Anurag Kumar Vulisha
Date: Mon Aug 06 2018 - 08:48:15 EST



>> - if (device_property_read_bool(sysdev, "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;
>> -
>> /* imod_interval is the interrupt moderation value in nanoseconds. */
>> xhci->imod_interval = 40000;
>
>xhci->imod_interval = 40000 is now in the correct place
>
>> device_property_read_u32(sysdev, "imod-interval-ns",
>> &xhci->imod_interval);
>
>but the device_propery_read_u32() line above can be moved inside loop below.
>

Hi Mathias,

Thanks for reviewing the patch. I agree with you, will correct this in v3

Thanks,
Anurag Kumar Vulisha
>>
>> + /* Iterate over all parent nodes for finding quirks */
>> + for (tmpdev = &pdev->dev; tmpdev; tmpdev = tmpdev->parent) {
>> +
>> + if (device_property_read_bool(tmpdev, "usb2-lpm-disable"))
>> + xhci->quirks |= XHCI_HW_LPM_DISABLE;
>> +
>> + if (device_property_read_bool(tmpdev, "usb3-lpm-capable"))
>> + xhci->quirks |= XHCI_LPM_SUPPORT;
>> +
>> + if (device_property_read_bool(tmpdev, "quirk-broken-port-ped"))
>> + xhci->quirks |= XHCI_BROKEN_PORT_PED;
>> + }
>> +
>> hcd->usb_phy = devm_usb_get_phy_by_phandle(sysdev, "usb-phy", 0);
>> if (IS_ERR(hcd->usb_phy)) {
>> ret = PTR_ERR(hcd->usb_phy);
>>
>
>-Mathias