Re: [RFC] spi: Using Trigger number to transmit/receive data

[カオ ミン ヒェップ <cm-hiep@jinso.co.jp>]

Hi Geert

On 03/18/2014 04:48 AM, Geert Uytterhoeven wrote:
> Hi Hiep,
>
> On Mon, Mar 17, 2014 at 1:01 PM, カオ　ミン　ヒェップ <cm-hiep@jinso.co.jp> wrote:
>> On 03/17/2014 04:54 PM, Geert Uytterhoeven wrote:
>>> On Mon, Mar 17, 2014 at 2:11 AM, カオ　ミン　ヒェップ <cm-hiep@jinso.co.jp> wrote:
>>>> On 03/13/2014 06:23 PM, Geert Uytterhoeven wrote:
>>>>> On Thu, Mar 13, 2014 at 9:29 AM, Cao Minh Hiep <cm-hiep@jinso.co.jp>
>>>>> wrote:
>>>>>> In order to transmit and receive data when have 32 bytes of data that
>>>>>> ready has prepared on Transmit/Receive Buffer to transmit or receive.
>>>>>> Instead transmits/receives a byte data using Transmit/Receive Buffer
>>>>>> Data Triggering Number will improve the speed of transfer data.
>>>>> Thanks for your patch, this looks like a valuable improvement!
>>>>>
>>>>> Unfortunately your patch doesn't apply against spi/for-next anymore, as
>>>>> the driver has changed a lot lately, due to the addition of RZ/A1H and
>>>>> Quad/Dual support.
>>>>>
>>>> Thanks, Do you mean this patch did not need for next and I don't mind
>>>> about
>>>> it?
>>> It means you will have to rework your patch to apply on top of
>>>
>>> https://git.kernel.org/cgit/linux/kernel/git/broonie/spi.git/tree/drivers/spi?h=for-next
>>> before the SPI maintainer can accept it.
>> Thanks, I understood, I will rework my patch and report to your later.
> I gave your patch a try on a v3.14-rc5 kernel on r8a7791/Koelsch,
> and it increased Single SPI read transfer speed from ca. 1 Mbps to 11 Mbps.
> So I'm looking forward to an updated version.
Thanks, I am modifying my patch and will send it to you as soon as possible.

Hiep