From: b32955@freescale.com (Huang Shijie)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] IMX/SDMA : save the real count for one DMA transaction.
Date: Wed, 23 Nov 2011 19:13:23 +0800 [thread overview]
Message-ID: <4ECCD553.5020804@freescale.com> (raw)
In-Reply-To: <20111123110626.GD4063@pengutronix.de>
>>>> + /* save the real count we received or transmitted. */
>>>> + chan->private = (void *)count;
>>> And if someone later needs another variable which is private?
>>>
>> I ever wanted to add an new parameter `void *` to dma_aync_tx_callback,
>> but it seemed i have
>> to change a lot of files.
>>
>> Do you have any better suggestion?
> Use a private struct and put count in there.
>
Where to put the private struct? in the imx-sdma.c ?
If i put it there, how can i get it in the UART driver with the current
DMA API?
thanks
Huang Shijie
next prev parent reply other threads:[~2011-11-23 11:13 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-23 9:13 [PATCH] IMX/SDMA : save the real count for one DMA transaction Huang Shijie
2011-11-23 10:58 ` Wolfram Sang
2011-11-23 11:04 ` Huang Shijie
2011-11-23 11:06 ` Wolfram Sang
2011-11-23 11:13 ` Huang Shijie [this message]
2011-11-23 11:18 ` Wolfram Sang
2011-11-23 11:29 ` Huang Shijie
2011-11-23 11:36 ` Wolfram Sang
2011-11-24 2:56 ` Huang Shijie
2011-11-23 11:40 ` Vinod Koul
2011-11-24 2:42 ` Huang Shijie
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