Re: [PATCH 0/3] i2c: rcar: make DMA more robust

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Wolfram,

On Tue, Mar 5, 2019 at 7:52 PM Wolfram Sang
<wsa+renesas@xxxxxxxxxxxxxxxxxxxx> wrote:
> The Renesas BSP has a patch to wait for the data register being empty before
> starting TX-DMA. This is according to the data sheet, so this small series does
> the same in patch 2 & 3. However, refactored, so there is less to compute and
> it is hopefully also easy to read. During that work, I noticed an implicit
> assumption about a required minimal DMA length. It is now explicit and
> documented :)
>
> Tested on a Renesas Salvator XS (R-Car M3N) and now regressions found when

no regressions? ;-)

> writing data with DMA.

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



[Index of Archives]     [Linux Samsung SOC]     [Linux Wireless]     [Linux Kernel]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Samba]     [Device Mapper]

  Powered by Linux