linux-kernel - Re: [PATCH 0/2] TCB: Add DMA support to read the capture register AB

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Message-ID: <7e9d228c-62e0-4b60-ad65-b7e23f6ced8f@microchip.com>
Date: Wed, 4 Jun 2025 06:17:16 +0000
From: <Dharma.B@...rochip.com>
To: <dlechner@...libre.com>, <kamel.bouhara@...tlin.com>, <wbg@...nel.org>,
	<Nicolas.Ferre@...rochip.com>, <alexandre.belloni@...tlin.com>,
	<claudiu.beznea@...on.dev>
CC: <linux-arm-kernel@...ts.infradead.org>, <linux-iio@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/2] TCB: Add DMA support to read the capture register AB

On 29/05/25 8:56 pm, David Lechner wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> Please include the counter: prefix in the subject of the cover letter
> as well. It makes it easier to see at a glance what this series might
> be about.

Sure, I will take care of this next time, Thanks.

> 
> On 5/28/25 1:13 AM, Dharma Balasubiramani wrote:
>> This patch series adds support to enable the DMA support for TCB.
>>
>> When DMA is used, the Register AB (TC_RAB) address must be configured as
>> source address of the transfer. TC_RAB provides the next unread value from
>> TC_RA and TC_RB. It may be read by the DMA after a request has been
>> triggered upon loading TC_RA or TC_RB.
> 
> Can you please explain what problem this series is solving and why we
> need this change?

This isn't solving any issues but I'm trying to make use of the feature.
> 


-- 
With Best Regards,
Dharma B.