Re: [PATCH v2 5/5] usb: host: xhci-plat: Add support for XHCI_WRITE_64_HI_LO_QUIRK

Krzysztof Kozlowski
2024-06-03T06:56:13Z

On 03/06/2024 05:44, Jung Daehwan wrote:
> On Fri, May 31, 2024 at 10:12:36AM +0200, Krzysztof Kozlowski wrote:
>> On 31/05/2024 08:07, Daehwan Jung wrote:
>>> This is set by dwc3 parent node to support writing high-low order.
>>>
>>> Signed-off-by: Daehwan Jung <dh10.jung@samsung.com>
>>> ---
>>> drivers/usb/host/xhci-plat.c | 3 +++
>>> 1 file changed, 3 insertions(+)
>>>
>>> diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
>>> index 3d071b8..31bdfa5 100644
>>> --- a/drivers/usb/host/xhci-plat.c
>>> +++ b/drivers/usb/host/xhci-plat.c
>>> @@ -256,6 +256,9 @@ int xhci_plat_probe(struct platform_device *pdev, struct device *sysdev, const s
>>> if (device_property_read_bool(tmpdev, "xhci-sg-trb-cache-size-quirk"))
>>> xhci->quirks |= XHCI_SG_TRB_CACHE_SIZE_QUIRK;
>>>
>>> + if (device_property_read_bool(tmpdev, "write-64-hi-lo-quirk"))
>>> + xhci->quirks |= XHCI_WRITE_64_HI_LO;
>>
>> Where is any user of this property (DTS)? Just to clarify: your
>> downstream does not matter really.
>>
>
> This is set by dwc3 parent node by software node.
>
> [PATCH v2 1/5] dt-bindings: usb: snps,dwc3: Add 'snps,xhci-write-64-hi-lo-quirk' quirk
> https://lore.kernel.org/r/1717135657-120818-2-git-send-email-dh10.jung@samsung.com/

This is not a patch to DTS.

Best regards,
Krzysztof