@@ -23,7 +23,12 @@ Required properties:
- reg: The base address of the UART register bank.
-- interrupts: A single interrupt specifier.
+- interrupts or interrupts-extended:
+ index 0: an interrupt specifier for the UART controller itself
+ index 1: optional, an interrupt specifier with edge sensitivity on Rx pin to
+ support Rx in-band wake up. If one would like to use this feature,
+ one must create an addtional pinctrl to reconfigure Rx pin to normal
+ GPIO before suspend.
- clocks : Must contain an entry for each entry in clock-names.
See ../clocks/clock-bindings.txt for details.
@@ -39,7 +44,11 @@ Example:
uart0: serial@11006000 {
compatible = "mediatek,mt6589-uart", "mediatek,mt6577-uart";
reg = <0x11006000 0x400>;
- interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_LOW>;
+ interrupts-extended = <&sysirq GIC_SPI 51 IRQ_TYPE_LEVEL_LOW>,
+ <&gpio 121 IRQ_TYPE_EDGE_FALLING>;
clocks = <&uart_clk>, <&bus_clk>;
clock-names = "baud", "bus";
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&uart_pin>;
+ pinctrl-1 = <&uart_pin_sleep>;
};
Signed-off-by: Claire Chang <tientzu@chromium.org> --- .../devicetree/bindings/serial/mtk-uart.txt | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-)