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dt-bindings: mvebu-uart: update information about UART clock

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Device "marvell,armada-3700-uart" should use
"marvell,armada-3700-uart-clock" compatible clock.

Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Link: https://lore.kernel.org/r/20220219152818.4319-5-kabel@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Pali Rohár 2022-02-19 16:28:16 +01:00 committed by Greg Kroah-Hartman
parent b7e2b5360f
commit ebd7e37a8b
1 changed files with 6 additions and 3 deletions
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9
Documentation/devicetree/bindings/serial/mvebu-uart.txt
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@ -14,7 +14,10 @@ Required properties:
is provided (possible only with the "marvell,armada-3700-uart"
compatible string for backward compatibility), it will only work
if the baudrate was initialized by the bootloader and no baudrate
change will then be possible.
change will then be possible. When provided it should be UART1-clk
for standard variant of UART and UART2-clk for extended variant
of UART. TBG clock (with UART TBG divisors d1=d2=1) or xtal clock
should not be used and are supported only for backward compatibility.
- interrupts:
- Must contain three elements for the standard variant of the IP
(marvell,armada-3700-uart): "uart-sum", "uart-tx" and "uart-rx",
@ -34,7 +37,7 @@ Example:
uart0: serial@12000 {
compatible = "marvell,armada-3700-uart";
reg = <0x12000 0x18>;
clocks = <&xtalclk>;
clocks = <&uartclk 0>;
interrupts =
<GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
@ -45,7 +48,7 @@ Example:
uart1: serial@12200 {
compatible = "marvell,armada-3700-uart-ext";
reg = <0x12200 0x30>;
clocks = <&xtalclk>;
clocks = <&uartclk 1>;
interrupts =
<GIC_SPI 30 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 31 IRQ_TYPE_EDGE_RISING>;