Hi Hiep, On Mon, Mar 17, 2014 at 1:01 PM, カオ ミン ヒェップ <cm-hiep@xxxxxxxxxxx> 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@xxxxxxxxxxx> 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@xxxxxxxxxxx> >>>> 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! Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
