Re: [PATCH] usb: xHCI: add XHCI_RESET_ON_RESUME quirk for Phytium xHCI host

[Sergei Shtylyov <sergei.shtylyov@gmail.com>]

On 8/29/24 10:30 AM, WangYuli wrote:

> The resume operation of Phytium Px210 xHCI host would failed

   Fail?

> to restore state. Use the XHCI_RESET_ON_RESUME quirk to skip
> it and reset the controller after resume.
> 
> Co-developed-by: Chen Baozi <chenbaozi@phytium.com.cn>
> Signed-off-by: Chen Baozi <chenbaozi@phytium.com.cn>
> Co-developed-by: Wang Zhimin <wangzhimin1179@phytium.com.cn>
> Signed-off-by: Wang Zhimin <wangzhimin1179@phytium.com.cn>
> Co-developed-by: Chen Zhenhua <chenzhenhua@phytium.com.cn>
> Signed-off-by: Chen Zhenhua <chenzhenhua@phytium.com.cn>
> Co-developed-by: Wang Yinfeng <wangyinfeng@phytium.com.cn>
> Signed-off-by: Wang Yinfeng <wangyinfeng@phytium.com.cn>
> Co-developed-by: Jiakun Shuai <shuaijiakun1288@phytium.com.cn>
> Signed-off-by: Jiakun Shuai <shuaijiakun1288@phytium.com.cn>
> Signed-off-by: WangYuli <wangyuli@uniontech.com>
[...]

> diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
> index b5705ed01d83..af967644489c 100644
> --- a/drivers/usb/host/xhci-pci.c
> +++ b/drivers/usb/host/xhci-pci.c
> @@ -55,6 +55,8 @@
>  #define PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI		0x51ed
>  #define PCI_DEVICE_ID_INTEL_ALDER_LAKE_N_PCH_XHCI	0x54ed
>  
> +#define PCI_DEVICE_ID_PHYTIUM_XHCI			0xdc27
> +
>  /* Thunderbolt */
>  #define PCI_DEVICE_ID_INTEL_MAPLE_RIDGE_XHCI		0x1138
>  #define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_2C_XHCI	0x15b5
> @@ -407,6 +409,10 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
>  	if (pdev->vendor == PCI_VENDOR_ID_VIA)
>  		xhci->quirks |= XHCI_RESET_ON_RESUME;
>  
> +	if (pdev->vendor == PCI_VENDOR_ID_PHYTIUM ||

   Hm, ||, not &&?

> +	    pdev->device == PCI_DEVICE_ID_PHYTIUM_XHCI)
> +		xhci->quirks |= XHCI_RESET_ON_RESUME;
> +
>  	/* See https://bugzilla.kernel.org/show_bug.cgi?id=79511 */
>  	if (pdev->vendor == PCI_VENDOR_ID_VIA &&
>  			pdev->device == 0x3432)
[...]

MBR, Sergey