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dt-bindings: serial: lpuart: add the clock requirement for imx8qxp 

Add the baud clock requirement for imx8qxp.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Fugang Duan 2019-07-04 21:43:55 +08:00 committed by Shawn Guo
parent 849b7e3bb2
commit 1843f22562
1 changed files with 4 additions and 1 deletions
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Documentation/devicetree/bindings/serial/fsl-lpuart.txt
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@ -13,7 +13,10 @@ Required properties:
- reg : Address and length of the register set for the device
- interrupts : Should contain uart interrupt
- clocks : phandle + clock specifier pairs, one for each entry in clock-names
- clock-names : should contain: "ipg" - the uart clock
- clock-names : For vf610/ls1021a/imx7ulp, "ipg" clock is for uart bus/baud
clock. For imx8qxp lpuart, "ipg" clock is bus clock that is used to access
lpuart controller registers, it also requires "baud" clock for module to
receive/transmit data.
Optional properties:
- dmas: A list of two dma specifiers, one for each entry in dma-names.