linux-kernel - Re: [PATCH] dmaengine: ti: omap-dma: Configure LCH

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Date:   Sat, 24 Nov 2018 02:17:40 +0200
From:   Aaro Koskinen <aaro.koskinen@....fi>
To:     Peter Ujfalusi <peter.ujfalusi@...com>
Cc:     vkoul@...nel.org, dan.j.williams@...el.com,
        dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
        tony@...mide.com, linux-omap@...r.kernel.org,
        rmk+kernel@...linux.org.uk,
        Felipe Balbi <felipe.balbi@...ux.intel.com>
Subject: Re: [PATCH] dmaengine: ti: omap-dma: Configure LCH_TYPE for OMAP1

Hi,

On Fri, Nov 23, 2018 at 01:45:46PM +0200, Peter Ujfalusi wrote:
> On 23/11/2018 0.01, Aaro Koskinen wrote:
> > With that reverted, the DMA works OK (and I can also now confirm that
> > OMAP_DMA_LCH_2D works). I haven't yet checked if we actually need that
> > quirk in OMAP UDC,
> 
> The omap_udc driver is a bit of a mess, need to check it myself, but for
> now we can just set the quirk_ep_out_aligned_size and investigate later.

OK, with quirk_ep_out_aligned_size we get 770/16xx DMA working again,
but on 15xx the omap_udc DMA still doesn't work (tested today for the
first time ever, I have no idea if it has ever worked and if so, when?).

A.