CC devicetree
On Thu, Jun 30, 2016 at 5:54 AM, <apro...@chromium.org> wrote: > From: Andrey Pronin <apro...@chromium.org> > > Some devices may need CS to be deasserted for some time > between transactions. Added a new capability to guarantee > a delay between SPI transactions for the device. > > Signed-off-by: Andrey Pronin <apro...@chromium.org> > --- > Documentation/devicetree/bindings/spi/spi-bus.txt | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/Documentation/devicetree/bindings/spi/spi-bus.txt > b/Documentation/devicetree/bindings/spi/spi-bus.txt > index 1b7ffd4..87c117a 100644 > --- a/Documentation/devicetree/bindings/spi/spi-bus.txt > +++ b/Documentation/devicetree/bindings/spi/spi-bus.txt > @@ -70,6 +70,8 @@ contain the following properties. > sleep if there was no SPI activity (msec). > - cs-wake-duration - (optional) Time it takes the device to wake up after > toggling CS if it went to sleep (msec). > +- xfer-delay - (optional) Delay to insert between SPI transactions > + to guarantee that CS is deasserted at least for some time. > > Some SPI controllers and devices support Dual and Quad SPI transfer mode. > It allows data in the SPI system to be transferred in 2 wires(DUAL) or 4 > wires(QUAD). > -- > 2.6.6
