From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0C86D2765D7; Tue, 19 May 2026 17:06:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779210405; cv=none; b=RkDHGiBv5RQe1bclR6WYSRtD9p6IFUHM5alBtnG0tOHGCJbkl/7ALNGi3hdUyL3kBar++3jq9i8NW7B73tAXXIs9MiDxI2gySdNcQF2QBO0tnfq5ec1j+RFs3xH5ARu36vRj4ZIqfNeZ2NAwNqI8OGk0xOvkwX656gezd2uKVPM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779210405; c=relaxed/simple; bh=Mi5fefcgSQTvi9ChCan9hgaXY1JdITu+bouW9m7d4bc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=aFbqqcYOqTKuVWa6QE2bhTHSDlKLeUrvaIcGW6tX0zgrLeCI8MDD2PkvNVsu+bRPNLzPW2vetKLrEKAETtcSFUSBm+cvXuu/8sVC4vs+LU0uPocleEtL5Z5+pMExrrJ4P9S3MuahxQQjBf6t1tuK+7PKXx6zNQ1dqGUYrtXioQ4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qyRlrMBO; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="qyRlrMBO" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C17BEC2BCB3; Tue, 19 May 2026 17:06:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1779210404; bh=Mi5fefcgSQTvi9ChCan9hgaXY1JdITu+bouW9m7d4bc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=qyRlrMBO1sL+WYVfkjgioWKMXBDN59ziCG91KC2k00Snafz1CgyOKwE35FBwT9J5O xhchP6fmchvZjLokeJewszskcJ2fyyPZstJXWt7PlRdHIOrGsGwN0qfX8SxS7hmmSc HXYddniIHpZdyUs6dOMSSFKHq+PnHs1zHqjkM2owzjNYGddKSzLrN9ClF9vvz/e1Ge kxWNN2uAXyTT+04uowQYnaaycsVNeslCXJWz+lZt60XjY6yTmqIJ0DCk6FNvPUlukO II+qsgaM0WAiqC8sOpSoSH932L+UBlTMSBwWRkr+HIzrZlOn4hL2xl3tlsDYd48DaG ToQ1G8V72Z5RA== Date: Tue, 19 May 2026 22:36:40 +0530 From: Vinod Koul To: Sai Sree Kartheek Adivi Cc: peter.ujfalusi@gmail.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, nm@ti.com, ssantosh@kernel.org, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, vigneshr@ti.com, Frank.li@nxp.com, r-sharma3@ti.com, gehariprasath@ti.com Subject: Re: [PATCH v6 00/19] dmaengine: ti: Add support for BCDMA v2 and PKTDMA v2 Message-ID: References: <20260428085202.1724548-1-s-adivi@ti.com> Precedence: bulk X-Mailing-List: dmaengine@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260428085202.1724548-1-s-adivi@ti.com> On 28-04-26, 14:21, Sai Sree Kartheek Adivi wrote: > This series adds support for the BCDMA_V2 and PKTDMA_V2 which is > introduced in AM62L. > > The key differences between the existing DMA and DMA V2 are: > - Absence of TISCI: Instead of configuring via TISCI calls, direct > register writes are required. > - Autopair: There is no longer a need for PSIL pair and instead AUTOPAIR > bit needs to set in the RT_CTL register. > - Static channel mapping: Each channel is mapped to a single peripheral. > - Direct IRQs: There is no INT-A and interrupt lines from DMA are > directly connected to GIC. > - Remote side configuration handled by DMA. So no need to write to PEER > registers to START / STOP / PAUSE / TEARDOWN. > - Unified Channel Space: Tx and Rx channels share a single register > space. Each channel index is specifically fixed in hardware as either > Tx or Rx in an interleaved manner. Please check the commments from Sashiko https://sashiko.dev/#/patchset/20260428085202.1724548-1-s-adivi%40ti.com -- ~Vinod