From: Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
To: William Wu <william.wu-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
Cc: robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
mark.rutland-5wv7dgnIgG8@public.gmane.org,
linux-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
frank.wang-TNX95d0MmH7DzftRWevZcw@public.gmane.org,
huangtao-TNX95d0MmH7DzftRWevZcw@public.gmane.org,
daniel.meng-TNX95d0MmH7DzftRWevZcw@public.gmane.org
Subject: Re: [PATCH] arm64: dts: rockchip: disable tx ipgap linecheck for rk3399 dwc3
Date: Fri, 18 Aug 2017 11:18:24 +0200 [thread overview]
Message-ID: <4718044.sxV3Y2WdLf@phil> (raw)
In-Reply-To: <1502958272-1384-1-git-send-email-william.wu-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
Am Donnerstag, 17. August 2017, 16:24:32 CEST schrieb William Wu:
> RK3399 USB DWC3 controller has a issue that FS/LS devices not
> recognized if inserted through USB 3.0 HUB. It's because that
> the inter-packet delay between the SSPLIT token to SETUP token
> is about 566ns, more then the USB spec requirement.
>
> This patch adds a quirk "snps,dis-tx-ipgap-linecheck-quirk" to
> disable the u2mac linestate check to decrease the SSPLIT token
> to SETUP token inter-packet delay from 566ns to 466ns.
>
> Signed-off-by: William Wu <william.wu-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
applied for 4.14
Thanks
Heiko
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WARNING: multiple messages have this Message-ID (diff)
From: heiko@sntech.de (Heiko Stuebner)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm64: dts: rockchip: disable tx ipgap linecheck for rk3399 dwc3
Date: Fri, 18 Aug 2017 11:18:24 +0200 [thread overview]
Message-ID: <4718044.sxV3Y2WdLf@phil> (raw)
In-Reply-To: <1502958272-1384-1-git-send-email-william.wu@rock-chips.com>
Am Donnerstag, 17. August 2017, 16:24:32 CEST schrieb William Wu:
> RK3399 USB DWC3 controller has a issue that FS/LS devices not
> recognized if inserted through USB 3.0 HUB. It's because that
> the inter-packet delay between the SSPLIT token to SETUP token
> is about 566ns, more then the USB spec requirement.
>
> This patch adds a quirk "snps,dis-tx-ipgap-linecheck-quirk" to
> disable the u2mac linestate check to decrease the SSPLIT token
> to SETUP token inter-packet delay from 566ns to 466ns.
>
> Signed-off-by: William Wu <william.wu@rock-chips.com>
applied for 4.14
Thanks
Heiko
WARNING: multiple messages have this Message-ID (diff)
From: Heiko Stuebner <heiko@sntech.de>
To: William Wu <william.wu@rock-chips.com>
Cc: robh+dt@kernel.org, mark.rutland@arm.com, linux@armlinux.org.uk,
linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org,
frank.wang@rock-chips.com, huangtao@rock-chips.com,
daniel.meng@rock-chips.com
Subject: Re: [PATCH] arm64: dts: rockchip: disable tx ipgap linecheck for rk3399 dwc3
Date: Fri, 18 Aug 2017 11:18:24 +0200 [thread overview]
Message-ID: <4718044.sxV3Y2WdLf@phil> (raw)
In-Reply-To: <1502958272-1384-1-git-send-email-william.wu@rock-chips.com>
Am Donnerstag, 17. August 2017, 16:24:32 CEST schrieb William Wu:
> RK3399 USB DWC3 controller has a issue that FS/LS devices not
> recognized if inserted through USB 3.0 HUB. It's because that
> the inter-packet delay between the SSPLIT token to SETUP token
> is about 566ns, more then the USB spec requirement.
>
> This patch adds a quirk "snps,dis-tx-ipgap-linecheck-quirk" to
> disable the u2mac linestate check to decrease the SSPLIT token
> to SETUP token inter-packet delay from 566ns to 466ns.
>
> Signed-off-by: William Wu <william.wu@rock-chips.com>
applied for 4.14
Thanks
Heiko
next prev parent reply other threads:[~2017-08-18 9:18 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-17 8:24 [PATCH] arm64: dts: rockchip: disable tx ipgap linecheck for rk3399 dwc3 William Wu
2017-08-17 8:24 ` William Wu
[not found] ` <1502958272-1384-1-git-send-email-william.wu-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2017-08-18 9:18 ` Heiko Stuebner [this message]
2017-08-18 9:18 ` Heiko Stuebner
2017-08-18 9:18 ` Heiko Stuebner
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