spi: dw: Document devicetree binding
authorSean Anderson <seanga2@gmail.com>
Fri, 16 Oct 2020 22:57:52 +0000 (18:57 -0400)
committerJagan Teki <jagan@amarulasolutions.com>
Fri, 18 Dec 2020 10:46:37 +0000 (16:16 +0530)
commit0d98f6de62dc02cbdbf0a40bdb02e465256e2150
treea3087c68a600074ba75ab1682a72bdb8d9d08f13
parent58875790fd50a78bed8df3c75b50285da1729d3c
spi: dw: Document devicetree binding

This documentation has been taken from Linux commit 3d7db0f11c7a ("spi: dw:
Refactor mid_spi_dma_setup() to separate DMA and IRQ config"), immediately
before the file was deleted and replaced with a yaml version. Additional
compatible strings from newer versions have been added, as well as a few
U-Boot-specific ones.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
doc/device-tree-bindings/spi/snps,dw-apb-ssi.txt [new file with mode: 0644]