linux-kernel - Re: [PATCH v2 01/10] dmaengine: omap-dma: port_window support correction for both direction

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Message-ID: <20170510162847.GM3489@atomide.com>
Date:   Wed, 10 May 2017 09:28:47 -0700
From:   Tony Lindgren <tony@...mide.com>
To:     Peter Ujfalusi <peter.ujfalusi@...com>
Cc:     b-liu@...com, gregkh@...uxfoundation.org, vinod.koul@...el.com,
        linux-usb@...r.kernel.org, linux-omap@...r.kernel.org,
        balbi@...nel.org, linux-kernel@...r.kernel.org,
        Russell King <linux@...linux.org.uk>,
        dmaengine@...r.kernel.org, dan.j.williams@...el.com
Subject: Re: [PATCH v2 01/10] dmaengine: omap-dma: port_window support
 correction for both direction

* Peter Ujfalusi <peter.ujfalusi@...com> [170510 01:45]:
> When the port_window support was verified it was done on setup where only
> the MEM_TO_DEV direction was enabled. This got un-noticed and thus only
> this direction worked.
> 
> Now that I have managed to get a setup to verify both direction it turned
> out that the setup was incorrect:
> omap_desc members are settings for the slave port while the omap_sg members
> apply to the memory side of the sDMA setup.
> 
> Fixes: 527a27591312 ("dmaengine: omap-dma: Fix the port_window support")
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
> Cc: Russell King <linux@...linux.org.uk>
> Cc: dmaengine@...r.kernel.org
> Cc: dan.j.williams@...el.com
> Cc: vinod.koul@...el.com

Tested-by: Tony Lindgren <tony@...mide.com>