Re: [PATCH 2/2] spi: mediatek: add cs timing configuration support

[luhua xu]

On Tue, 2019-11-19 at 18:19 +0000, Mark Brown wrote:
> On Mon, Nov 18, 2019 at 12:57:17PM +0800, Luhua Xu wrote:
> > Add configure SPI CS setup/hold/idle delays in terms
> > of clk count support, and use one period of current
> > spi speed as default if setup/hold/idle not indicated.
> 
> We have added a generic way to specify delays like this via the
> set_cs_timing() operation and related fields in the spi_device struct
> which operate in terms of spi_delay - Alexandru Ardelean added them
> recently.  This supports both times and clock cycles as units so should
> fit with what your hardware can do, the interface is new though so there
> may be soem rough edges to worry about.

I find the patch today. It's really a better idear.