Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux

dt-bindings: serial: 8250_omap: Add compatible for AM654 UART controller

AM654 uses a UART controller that is only partially compatible with
existing 8250 UART. UART DMA integration is substantially different
and even a match against standard 8250 or omap4 would result in
non-working UART once DMA is enabled by default.

Introduce a specific compatible to help build up the differences in
follow on patches.

Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Vignesh R <vigneshr@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

authored by

Nishanth Menon and committed by
Greg Kroah-Hartman
ccd8350d 5fd691af

+1
+1
Documentation/devicetree/bindings/serial/omap_serial.txt
··· 1 1 OMAP UART controller 2 2 3 3 Required properties: 4 + - compatible : should be "ti,am654-uart" for AM654 controllers 4 5 - compatible : should be "ti,omap2-uart" for OMAP2 controllers 5 6 - compatible : should be "ti,omap3-uart" for OMAP3 controllers 6 7 - compatible : should be "ti,omap4-uart" for OMAP4 controllers