From 99693945013a5178e1944f9409a1527d80b33abc Mon Sep 17 00:00:00 2001 From: "Ivan T. Ivanov" Date: Wed, 30 Sep 2015 15:27:02 +0300 Subject: 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 Signed-off-by: Greg Kroah-Hartman --- Documentation/devicetree/bindings/serial/qcom,msm-uartdm.txt | 3 +++ 1 file changed, 3 insertions(+) (limited to 'Documentation/devicetree/bindings/serial') 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 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 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 -- cgit v1.2.3