From cfdad2aba7398021f6eec415b9271b9cb40065f9 Mon Sep 17 00:00:00 2001 From: David Brown Date: Thu, 4 Aug 2011 01:55:24 -0700 Subject: msm_serial: Add devicetree support Add devicetree support to the msm_serial driver. Clocks are still queried by direct name from the driver until device tree clock support is implemented. Change-Id: Ia6b2ddfcf1e5dc3bd25dd502662f971202e6d56f Signed-off-by: David Brown Acked-by: Arnd Bergmann --- .../devicetree/bindings/tty/serial/msm_serial.txt | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 Documentation/devicetree/bindings/tty/serial/msm_serial.txt (limited to 'Documentation/devicetree/bindings/tty') diff --git a/Documentation/devicetree/bindings/tty/serial/msm_serial.txt b/Documentation/devicetree/bindings/tty/serial/msm_serial.txt new file mode 100644 index 000000000000..aef383eb8876 --- /dev/null +++ b/Documentation/devicetree/bindings/tty/serial/msm_serial.txt @@ -0,0 +1,27 @@ +* Qualcomm MSM UART + +Required properties: +- compatible : + - "qcom,msm-uart", and one of "qcom,msm-hsuart" or + "qcom,msm-lsuart". +- reg : offset and length of the register set for the device + for the hsuart operating in compatible mode, there should be a + second pair describing the gsbi registers. +- interrupts : should contain the uart interrupt. + +There are two different UART blocks used in MSM devices, +"qcom,msm-hsuart" and "qcom,msm-lsuart". The msm-serial driver is +able to handle both of these, and matches against the "qcom,msm-uart" +as the compatibility. + +The registers for the "qcom,msm-hsuart" device need to specify both +register blocks, even for the common driver. + +Example: + + uart@19c400000 { + compatible = "qcom,msm-hsuart", "qcom,msm-uart"; + reg = <0x19c40000 0x1000>, + <0x19c00000 0x1000>; + interrupts = <195>; + }; -- cgit v1.2.3