From: Florian Fainelli <f.fainelli@gmail.com>
To: Al Cooper <alcooperx@gmail.com>, linux-kernel@vger.kernel.org
Cc: bcm-kernel-feedback-list@broadcom.com,
Kishon Vijay Abraham I <kishon@ti.com>,
Vinod Koul <vkoul@kernel.org>
Subject: Re: [PATCH] phy: usb: Fix incorrect clearing of tca_drv_sel bit in SETUP reg for 7211
Date: Fri, 2 Oct 2020 13:21:37 -0700 [thread overview]
Message-ID: <376da218-b185-c9d7-3b53-6c1b08fd4c47@gmail.com> (raw)
In-Reply-To: <20201002190115.48017-1-alcooperx@gmail.com>
On 10/2/2020 12:01 PM, Al Cooper wrote:
> The 7211a0 has a tca_drv_sel bit in the USB SETUP register that
> should never be enabled. This feature is only used if there is a
> USB Type-C PHY, and the 7211 does not have one. If the bit is
> enabled, the VBUS signal will never be asserted. In the 7211a0,
> the bit was incorrectly defaulted to on so the driver had to clear
> the bit. In the 7211c0 the state was inverted so the driver should
> no longer clear the bit. This hasn't been a problem because all
> current 7211 boards don't use the VBUS signal, but there are some
> future customer boards that may use it.
>
> Signed-off-by: Al Cooper <alcooperx@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
--
Florian
next prev parent reply other threads:[~2020-10-02 20:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-02 19:01 Al Cooper
2020-10-02 20:21 ` Florian Fainelli [this message]
2020-10-28 16:11 ` Vinod Koul
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