Re: [PATCH v4] spi: master driver to enable RTC on ICPDAS LP-8841

[Rob Herring]

On Tue, Feb 23, 2016 at 01:44:28PM +0300, Sergei Ianovich wrote:
> ICP DAS LP-8841 contains a DS-1302 RTC. This driver provides an SPI
> master which makes the RTC usable. The driver is not supposed to work
> with anything else.
> 
> The driver uses the standard MicroWire half-duplex transfer timing.
> Master output is set on low clock and sensed by the RTC on the rising
> edge. Master input is set by the RTC on the trailing edge and is sensed
> by the master on low clock.
> 
> Signed-off-by: Sergei Ianovich <ynvich@xxxxxxxxx>
> CC: Mark Brown <broonie@xxxxxxxxxx>
> CC: Rob Herring <robh@xxxxxxxxxx>
> 
>    v3..v4
>    fix Mark Brown review comments
>    * fix dependencies in Kconfig
> 
>    fix Rob Herring review comments
>    * rewrite binding description
>    * change binding and doc file names
>    * fix typo
> 
>    v2..v3 to fix Mark Brown review comments
>    * drop dependencies in Kconfig
>    * use #ifdef CONFIG_OF to allow build without DT
>    * drop empty driver->remove
> 
>    v1..v2 to fix Mark Brown review comments
>    * drop ifdef around MODULE_NAME
>    * use usleep_range directly
>    * drop empty master->cleanup
> ---
>  .../bindings/spi/icpdas-lp8841-spi-rtc.txt         |  54 +++++

Acked-by: Rob Herring <robh@xxxxxxxxxx>