linux-kernel - Re: [RESEND PATCH V7 4/6] i2c: qup: Add bam dma capabilities

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Message-ID: <20160224101949.GB1391@katana>
Date:	Wed, 24 Feb 2016 11:19:49 +0100
From:	Wolfram Sang <wsa@...-dreams.de>
To:	Sricharan R <sricharan@...eaurora.org>
Cc:	devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	agross@...eaurora.org, linux-kernel@...r.kernel.org,
	linux-i2c@...r.kernel.org, iivanov@...sol.com,
	galak@...eaurora.org, dmaengine@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, andy.gross@...aro.org,
	ntelkar@...eaurora.org, architt@...eaurora.org
Subject: Re: [RESEND PATCH V7 4/6] i2c: qup: Add bam dma capabilities

On Mon, Feb 22, 2016 at 05:38:15PM +0530, Sricharan R wrote:
> QUP cores can be attached to a BAM module, which acts as
> a dma engine for the QUP core. When DMA with BAM is enabled,
> the BAM consumer pipe transmitted data is written to the
> output FIFO and the BAM producer pipe received data is read
> from the input FIFO.
> 
> With BAM capabilities, qup-i2c core can transfer more than
> 256 bytes, without a 'stop' which is not possible otherwise.
> 
> Signed-off-by: Sricharan R <sricharan@...eaurora.org>
> Reviewed-by: Andy Gross <andy.gross@...aro.org>
> Tested-by: Archit Taneja <architt@...eaurora.org>
> Tested-by: Telkar Nagender <ntelkar@...eaurora.org>

Applied to for-next, thanks!


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