[PATCH v4] spi: dts: sun4i: Add support for wait time between word transmissions
Marcus Weseloh
mweseloh42 at gmail.com
Thu Dec 17 03:22:49 PST 2015
Hi Maxime,
2015-12-16 11:39 GMT+01:00 Maxime Ripard <maxime.ripard at free-electrons.com>:
> It looks mostly fine, however, please try to make only one thing in
> one patch.
>
> In this case, it would mean having one patch to add the DT property
> and support in the SPI core in a first one, and then add support for
> it in your driver.
Will do.
> I also have a minor comment below....
[...]
>> + if (spi->word_wait_ns) {
>> + clk_ns = DIV_ROUND_UP(1000000000, tfr->speed_hz);
>> + wait_clk = DIV_ROUND_UP(spi->word_wait_ns, clk_ns) - 3;
>> + if (wait_clk < 1) {
>> + wait_clk = 1;
>> + dev_info(&spi->dev,
>> + "using minimum of 4 word wait cycles (%uns)",
>> + 4 * clk_ns);
>
> Logging it at the info loglevel seems a bit too high. debug seems more
> appropriate.
I will change it to debug and send a new version.
Thanks for the review!
Marcus
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