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| author |   Oskar Senft <osk@google.com> | 2019-09-05 10:41:29 -0400 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-04 15:05:20 +0200 |
| commit | 6270d22d39022cc22cafc7ce4dd80114b6916710 (patch) | |
| tree | 16358d1fdf589b202a7b6fc65a6c056a0edf0b5b /Documentation/devicetree/bindings/serial | |
| parent | drivers/tty/serial/8250: Make Aspeed VUART SIRQ polarity configurable (diff) | |
| download | wireguard-linux-6270d22d39022cc22cafc7ce4dd80114b6916710.tar.xz wireguard-linux-6270d22d39022cc22cafc7ce4dd80114b6916710.zip | |
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.txt | 5 |
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: |