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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-09-08 01:01:14 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-09-08 01:01:14 -0300
commite5fd91f1ef340da553f7a79da9540c3db711c937 (patch)
treeb11842027dc6641da63f4bcc524f8678263304a3 /Documentation/devicetree/bindings/serial/mtk-uart.txt
parent2a9b0348e685a63d97486f6749622b61e9e3292f (diff)
Linux-libre 4.2-gnu
Diffstat (limited to 'Documentation/devicetree/bindings/serial/mtk-uart.txt')
-rw-r--r--Documentation/devicetree/bindings/serial/mtk-uart.txt12
1 files changed, 10 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/serial/mtk-uart.txt b/Documentation/devicetree/bindings/serial/mtk-uart.txt
index 44152261e..8d63f1da0 100644
--- a/Documentation/devicetree/bindings/serial/mtk-uart.txt
+++ b/Documentation/devicetree/bindings/serial/mtk-uart.txt
@@ -14,7 +14,14 @@ Required properties:
- interrupts: A single interrupt specifier.
-- clocks: Clock driving the hardware.
+- clocks : Must contain an entry for each entry in clock-names.
+ See ../clocks/clock-bindings.txt for details.
+- clock-names:
+ - "baud": The clock the baudrate is derived from
+ - "bus": The bus clock for register accesses (optional)
+
+For compatibility with older device trees an unnamed clock is used for the
+baud clock if the baudclk does not exist. Do not use this for new designs.
Example:
@@ -22,5 +29,6 @@ Example:
compatible = "mediatek,mt6589-uart", "mediatek,mt6577-uart";
reg = <0x11006000 0x400>;
interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_LOW>;
- clocks = <&uart_clk>;
+ clocks = <&uart_clk>, <&bus_clk>;
+ clock-names = "baud", "bus";
};