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| author |   Andrew Jackson <Andrew.Jackson@arm.com> | 2014-11-07 14:14:23 +0000 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-07 08:35:56 -0800 |
| commit | 98267d33e2da8cd386212856a22f4a64b32834ab (patch) | |
| tree | b38b5fc5c105436b7bd9fb5a2ff65aa6c8ec747f /Documentation/devicetree/bindings/serial | |
| parent | serial: pl011: Don't enable RX DMA if residue processing not supported (diff) | |
| download | linux-dev-98267d33e2da8cd386212856a22f4a64b32834ab.tar.xz linux-dev-98267d33e2da8cd386212856a22f4a64b32834ab.zip | |
serial: pl011: Add device tree support for RX DMA polling
Add equivalent attributes to those provided in the platform data
for use when RX DMA is enabled.
Signed-off-by: Andrew Jackson <Andrew.Jackson@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree/bindings/serial')
| -rw-r--r-- | Documentation/devicetree/bindings/serial/pl011.txt | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/Documentation/devicetree/bindings/serial/pl011.txt b/Documentation/devicetree/bindings/serial/pl011.txt index 5d2e840ae65c..0e05340055e1 100644 --- a/Documentation/devicetree/bindings/serial/pl011.txt +++ b/Documentation/devicetree/bindings/serial/pl011.txt @@ -6,12 +6,17 @@ Required properties: - interrupts: exactly one interrupt specifier Optional properties: -- pinctrl: When present, must have one state named "sleep" - and one state named "default" -- clocks: When present, must refer to exactly one clock named - "apb_pclk" -- dmas: When present, may have one or two dma channels. - The first one must be named "rx", the second one - must be named "tx". +- pinctrl: When present, must have one state named "sleep" + and one state named "default" +- clocks: When present, must refer to exactly one clock named + "apb_pclk" +- dmas: When present, may have one or two dma channels. + The first one must be named "rx", the second one + must be named "tx". +- auto-poll: Enables polling when using RX DMA. +- poll-rate-ms: Rate at which poll occurs when auto-poll is set, + default 100ms. +- poll-timeout-ms: Poll timeout when auto-poll is set, default + 3000ms. See also bindings/arm/primecell.txt |