linux-kernel - Re: [PATCH 06/16] usb: musb: dsps: rename ti81xx_driver_data to am33xx_driver

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Message-ID: <CADYTM3Zagr7WQna+wmhJd+FYnk+5eAjOW8XKwi7h+J4=Pu-MGg@mail.gmail.com>
Date:	Tue, 23 Jul 2013 14:09:54 -0500
From:	Bin Liu <binmlist@...il.com>
To:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc:	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	balbi@...com, george.cherian@...com
Subject: Re: [PATCH 06/16] usb: musb: dsps: rename ti81xx_driver_data to am33xx_driver_data

(re-send, due to last delivery failure to the mailing list...)

On Tue, Jul 23, 2013 at 1:23 PM, Bin Liu <binmlist@...il.com> wrote:
> Hi Sebastian,
>
> On Mon, Jul 22, 2013 at 1:09 PM, Sebastian Andrzej Siewior
> <bigeasy@...utronix.de> wrote:
>>
>> This patch renames the type struct from ti81xx_driver_data to
>> am33xx_driver_data since it is not used for ti81xx anymore. The EOI
>> member is also removed since the am33xx SoC does not have such register.
>> The interrupt is acknowledged by writting into the stat register.
>
> I guess the EOI register is removed from the TRM because AM33xx does not use
> it, there is no need to write to it to acknowledge. It does not hurt to
> write to it though since the register still exists, it just does nothing, I
> guess.
>
> But I am not sure if it is a good idea to remove eoi from the musb_dsps
> driver. If the intension is to merge the support for other SoC, such as
> AM35xx, AM18xx, then EOI handling might be still needed. I just don't know
> how those devices use EOI.
>
> Regards,
> -Bin.
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