tty: serial: msm: Add RX DMA support
authorIvan T. Ivanov <ivan.ivanov@linaro.org>
Wed, 30 Sep 2015 12:27:02 +0000 (15:27 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 4 Oct 2015 18:15:17 +0000 (19:15 +0100)
commit99693945013a5178e1944f9409a1527d80b33abc
tree7b8d24bf6151cb836f0c8c7ab619e31d466a3dcf
parent3a878c430fd6eb4f8587f9ebd187f773bf85d1d6
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>
Documentation/devicetree/bindings/serial/qcom,msm-uartdm.txt
drivers/tty/serial/msm_serial.c
drivers/tty/serial/msm_serial.h