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| author | Ivan T. Ivanov <ivan.ivanov@linaro.org> | 2015-09-30 14:27:02 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-04 20:15:17 +0200 |
| commit | 99693945013a5178e1944f9409a1527d80b33abc (patch) | |
| tree | 7b8d24bf6151cb836f0c8c7ab619e31d466a3dcf /Documentation/devicetree/bindings/serial | |
| parent | tty: serial: msm: Add TX DMA support (diff) | |
| download | linux-99693945013a5178e1944f9409a1527d80b33abc.tar.xz linux-99693945013a5178e1944f9409a1527d80b33abc.zip | |
tty: serial: msm: Add RX DMA support
Add receive DMA support for UARTDM type of controllers.
Tested on APQ8064, which have UARTDM v1.3 and ADM DMA engine
and APQ8016, which have UARTDM v1.4 and BAM DMA engine.
Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree/bindings/serial')
| -rw-r--r-- | Documentation/devicetree/bindings/serial/qcom,msm-uartdm.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/serial/qcom,msm-uartdm.txt b/Documentation/devicetree/bindings/serial/qcom,msm-uartdm.txt index a600023d9ec1..182777fac9a2 100644 --- a/Documentation/devicetree/bindings/serial/qcom,msm-uartdm.txt +++ b/Documentation/devicetree/bindings/serial/qcom,msm-uartdm.txt @@ -29,6 +29,9 @@ Optional properties: - qcom,tx-crci: Identificator <u32> for Client Rate Control Interface to be used with TX DMA channel. Required when using DMA for transmission with UARTDM v1.3 and bellow. +- qcom,rx-crci: Identificator <u32> for Client Rate Control Interface to be + used with RX DMA channel. Required when using DMA for reception + with UARTDM v1.3 and bellow. Note: Aliases may be defined to ensure the correct ordering of the UARTs. The alias serialN will result in the UART being assigned port N. If any |