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authorFugang Duan <fugang.duan@nxp.com>2019-07-04 21:43:55 +0800
committerShawn Guo <shawnguo@kernel.org>2019-07-23 10:46:06 +0800
commit1843f225625bb7c15109136ac870ff39e304fc42 (patch)
treeb335c999ab796fd40e43d8c259b508af67125aff /Documentation/devicetree/bindings/serial
parentdt-bindings: arm: fsl: Add support for ZII i.MX7 RMU2 board (diff)
downloadlinux-dev-1843f225625bb7c15109136ac870ff39e304fc42.tar.xz
linux-dev-1843f225625bb7c15109136ac870ff39e304fc42.zip
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>
Diffstat (limited to 'Documentation/devicetree/bindings/serial')
-rw-r--r--Documentation/devicetree/bindings/serial/fsl-lpuart.txt5
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/serial/fsl-lpuart.txt b/Documentation/devicetree/bindings/serial/fsl-lpuart.txt
index 21483ba820bc..3495eee81d53 100644
--- a/Documentation/devicetree/bindings/serial/fsl-lpuart.txt
+++ b/Documentation/devicetree/bindings/serial/fsl-lpuart.txt
@@ -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.