tty: serial: msm: Add TX DMA support
authorIvan T. Ivanov <ivan.ivanov@linaro.org>
Wed, 30 Sep 2015 12:27:01 +0000 (15:27 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 4 Oct 2015 18:15:17 +0000 (19:15 +0100)
commit3a878c430fd6eb4f8587f9ebd187f773bf85d1d6
tree6a91f4868bb0ad152ea16c5c2ec940f75c0aa68b
parent558abdb05fe0c7fc86eba8803d74bc9592c3cb26
tty: serial: msm: Add TX DMA support

Add transmit 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