linux-kernel - Re: [PATCH 07/13] usb: xhci-mtk: add support ip-sleep wakeup for mT8192

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Date:   Mon, 22 Mar 2021 11:58:40 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...il.com>
To:     Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mathias Nyman <mathias.nyman@...el.com>
Cc:     Matthias Brugger <matthias.bgg@...il.com>,
        linux-usb@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Eddie Hung <eddie.hung@...iatek.com>,
        Nicolas Boichat <drinkcat@...omium.org>
Subject: Re: [PATCH 07/13] usb: xhci-mtk: add support ip-sleep wakeup for
 mT8192

On 22.03.2021 6:13, Chunfeng Yun wrote:

> Add support ip-sleep wakeup for mT8192, it's a specific revision,
              ^ for

> and not follow IPM rule.

    Following?

> Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
> ---
>   drivers/usb/host/xhci-mtk.c | 10 ++++++++++
>   1 file changed, 10 insertions(+)
> 
> diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
> index 8ba1f914cb75..1bfa28c9b5a2 100644
> --- a/drivers/usb/host/xhci-mtk.c
> +++ b/drivers/usb/host/xhci-mtk.c
> @@ -70,6 +70,10 @@
>   #define WC0_IS_P	BIT(12)	/* polarity */
>   #define WC0_IS_EN	BIT(6)
>   
> +/* mt8192 */
> +#define WC0_SSUSB0_CDEN		BIT(6)
> +#define WC0_IS_SPM_EN		BIT(1)
> +
>   /* mt2712 etc */
>   #define PERI_SSUSB_SPM_CTRL	0x0
>   #define SSC_IP_SLEEP_EN	BIT(4)
> @@ -79,6 +83,7 @@ enum ssusb_uwk_vers {
>   	SSUSB_UWK_V1 = 1,
>   	SSUSB_UWK_V2,
>   	SSUSB_UWK_V11 = 11,	/* specific revision 1.1 */
> +	SSUSB_UWK_V12,		/* specific revision 1.2 */

    SSUSB_UWK_V1_2, maybe?

[...]

MBR, Sergei