From: Vinod Koul <vkoul@kernel.org>
To: Mathias Kresin <dev@kresin.me>
Cc: Kishon Vijay Abraham I <kishon@ti.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
linux-kernel@vger.kernel.org,
Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
Hauke Mehrtens <hauke@hauke-m.de>,
stable@vger.kernel.org
Subject: Re: [PATCH] phy: lantiq: rcu-usb2: wait after clock enable
Date: Wed, 13 Jan 2021 19:29:19 +0530 [thread overview]
Message-ID: <20210113135919.GO2771@vkoul-mobl> (raw)
In-Reply-To: <20210107224901.2102479-1-dev@kresin.me>
On 07-01-21, 23:49, Mathias Kresin wrote:
> Commit 65dc2e725286 ("usb: dwc2: Update Core Reset programming flow.")
> revealed that the phy isn't ready immediately after enabling it's
> clocks. The dwc2_check_core_version() fails and the dwc2 usb driver
> errors out.
>
> Add a short delay to let the phy get up and running. There isn't any
> documentation how much time is required, the value was chosen based on
> tests.
Applied, thanks
--
~Vinod
prev parent reply other threads:[~2021-01-13 14:00 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-07 22:49 [PATCH] phy: lantiq: rcu-usb2: wait after clock enable Mathias Kresin
2021-01-07 23:12 ` Hauke Mehrtens
2021-01-08 19:48 ` Martin Blumenstingl
2021-01-13 13:59 ` Vinod Koul [this message]
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