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authorOskar Senft <osk@google.com>2019-09-05 17:41:29 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-10-04 16:05:20 +0300
commit6270d22d39022cc22cafc7ce4dd80114b6916710 (patch)
tree16358d1fdf589b202a7b6fc65a6c056a0edf0b5b /Documentation/devicetree/bindings/serial
parent8d310c9107a2a3f19dc7bb54dd50f70c65ef5409 (diff)
downloadlinux-6270d22d39022cc22cafc7ce4dd80114b6916710.tar.xz
dt-bindings: serial: 8250: Add aspeed,sirq-polarity-sense.
Add documentation for 8250_aspeed_vuart's aspeed,sirq-polarity-sense property that enables to auto-configure the VUART's SIRQ polarity. Signed-off-by: Oskar Senft <osk@google.com> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20190905144130.220713-2-osk@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree/bindings/serial')
-rw-r--r--Documentation/devicetree/bindings/serial/8250.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/serial/8250.txt b/Documentation/devicetree/bindings/serial/8250.txt
index 20d351f268ef..55700f20f6ee 100644
--- a/Documentation/devicetree/bindings/serial/8250.txt
+++ b/Documentation/devicetree/bindings/serial/8250.txt
@@ -56,6 +56,11 @@ Optional properties:
- {rts,cts,dtr,dsr,rng,dcd}-gpios: specify a GPIO for RTS/CTS/DTR/DSR/RI/DCD
line respectively. It will use specified GPIO instead of the peripheral
function pin for the UART feature. If unsure, don't specify this property.
+- aspeed,sirq-polarity-sense: Only applicable to aspeed,ast2500-vuart.
+ phandle to aspeed,ast2500-scu compatible syscon alongside register offset
+ and bit number to identify how the SIRQ polarity should be configured.
+ One possible data source is the LPC/eSPI mode bit.
+ Example: aspeed,sirq-polarity-sense = <&syscon 0x70 25>
Note:
* fsl,ns16550: