linux/Documentation/devicetree/bindings/tty/serial/msm_serial.txt
David Brown cfdad2aba7 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 <davidb@codeaurora.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2011-08-29 12:47:36 -07:00

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* 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>;
};