From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Ajay Kumar Gupta <ajay.gupta@ti.com>,
linux-usb@vger.kernel.org, linux-omap@vger.kernel.org,
felipe.balbi@nokia.com, david-b@pacbell.net,
Swaminathan S <swami.iyer@ti.com>, Babu Ravi <ravibabu@ti.com>
Subject: Re: [PATCH] musb: fix ISOC Tx programming for CPPI DMAs
Date: Fri, 28 Aug 2009 13:29:26 +0400 [thread overview]
Message-ID: <4A97A376.5040308@ru.mvista.com> (raw)
In-Reply-To: <4A97A1FF.5050501@ru.mvista.com>
Hello, I wrote:
>> Isochronous Tx DMA is getting programmed but never getting started
>> for CPPI and TUSB DMAs and thus Isochronous Tx doesn't work.
>
> That's not true.
Well, this is only true iff URB_ISO_ASAP flag is *not* set for an
URB. In this case, PIO is also not being started, so you should fix this
too.
>> Signed-off-by: Swaminathan S <swami.iyer@ti.com>
>> Signed-off-by: Babu Ravi <ravibabu@ti.com>
>> Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
>>
> Fixing it by starting DMAs using musb_h_tx_dma_start().
>
> NAK.
Still NAK...
WBR, Sergei
next prev parent reply other threads:[~2009-08-28 9:29 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-28 5:58 [PATCH] musb: fix ISOC Tx programming for CPPI DMAs Ajay Kumar Gupta
2009-08-28 9:23 ` Sergei Shtylyov
2009-08-28 9:29 ` Sergei Shtylyov [this message]
2009-08-28 9:44 ` Gupta, Ajay Kumar
2009-08-28 9:46 ` Gupta, Ajay Kumar
2009-08-28 10:02 ` Sergei Shtylyov
[not found] ` <4A97AB42.4070008-hkdhdckH98+B+jHODAdFcQ@public.gmane.org>
2009-08-28 10:11 ` Subbrathnam, Swaminathan
[not found] ` <FCCFB4CDC6E5564B9182F639FC35608702F9A45083-/tLxBxkBPtCIQmiDNMet8wC/G2K4zDHf@public.gmane.org>
2009-08-28 13:27 ` Sergei Shtylyov
2009-08-28 10:12 ` Sergei Shtylyov
2009-08-28 10:28 ` Gupta, Ajay Kumar
2009-08-28 10:35 ` Gupta, Ajay Kumar
2009-08-28 12:16 ` Sergei Shtylyov
[not found] ` <4A97CA80.7010600-hkdhdckH98+B+jHODAdFcQ@public.gmane.org>
2009-08-28 13:06 ` Sergei Shtylyov
2009-08-28 13:23 ` Sergei Shtylyov
2009-08-28 10:46 ` Sergei Shtylyov
2009-08-28 14:24 ` Sergei Shtylyov
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