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From: "Mendez, Judith" <jm@ti.com>
To: Francesco Dolcini <francesco@dolcini.it>
Cc: Nishanth Menon <nm@ti.com>, Vignesh Raghavendra <vigneshr@ti.com>,
	"Tero Kristo" <kristo@kernel.org>, Rob Herring <robh@kernel.org>,
	"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	"Francesco Dolcini" <francesco.dolcini@toradex.com>,
	<linux-arm-kernel@lists.infradead.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	Moteen Shah <m-shah@ti.com>, <stable@vger.kernel.org>
Subject: Re: [PATCH v1] arm64: dts: ti: k3-am62-verdin: Set MMC clock pins as OUTPUT
Date: Mon, 17 Aug 2026 17:54:01 -0500	[thread overview]
Message-ID: <1bced387-8c0f-441a-b7fc-bedbbb4735e1@ti.com> (raw)
In-Reply-To: <20260814071549.GA5246@francesco-nb>

Hi Francesco,

On 8/14/2026 2:15 AM, Francesco Dolcini wrote:
> On Thu, Aug 13, 2026 at 02:57:52PM -0500, Mendez, Judith wrote:
>> Hi Francesco,
>>
>> On 8/13/2026 6:12 AM, Francesco Dolcini wrote:
>>> From: Francesco Dolcini <francesco.dolcini@toradex.com>
>>>
>>> MMC clock pins must be configured as OUTPUT-only per TRM [0] with
>>> receiver disabled (RXACTIVE bit = 0). Change MMC CLK pins from
>>> PIN_INPUT to PIN_OUTPUT to match documentation.
>>>
>>> Link: https://www.ti.com/lit/pdf/spruiv7 Rev. C: Table 12-246. MMCSDi I/O Signals [0]
>>> Fixes: 316b80246b16 ("arm64: dts: ti: add verdin am62")
>>> Cc: stable@vger.kernel.org
>>> Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
>>
>> Assuming defaults are set.
> 
> We have
> 
>    AM62X_IOPAD(0x11c, PIN_INPUT, 0) /* (#N/A) MMC2_CLKB */
> 
> is this what you are referring to here and in the other discussion
> thread?
Yes, without this defined, MMC2 would not work normally. You have it
defined so you should not have any problems.

~ Judith


      reply	other threads:[~2026-08-17 22:54 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-13 11:12 [PATCH v1] arm64: dts: ti: k3-am62-verdin: Set MMC clock pins as OUTPUT Francesco Dolcini
2026-08-13 19:57 ` Mendez, Judith
2026-08-14  7:15   ` Francesco Dolcini
2026-08-17 22:54     ` Mendez, Judith [this message]

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