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ARM: at91/gpio: add irqdomain and DT support

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Add "legacy" type of irqdomain to preserve old-style numbering
and allow smooth transition for both DT and non-DT cases.

Original idea and code by Jean-Christophe Plagniol-Villard.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
This commit is contained in:
Nicolas Ferre
2012-02-11 15:41:40 +01:00
parent 4340cde57d
commit 21f8187278
5 changed files with 291 additions and 46 deletions
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30
arch/arm/boot/dts/at91sam9g20.dtsi
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@@ -23,6 +23,9 @@
serial4 = &usart3;
serial5 = &usart4;
serial6 = &usart5;
gpio0 = &pioA;
gpio1 = &pioB;
gpio2 = &pioC;
};
cpus {
cpu@0 {
@@ -54,6 +57,33 @@
reg = <0xfffff000 0x200>;
};
pioA: gpio@fffff400 {
compatible = "atmel,at91rm9200-gpio";
reg = <0xfffff400 0x100>;
interrupts = <2 4>;
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
};
pioB: gpio@fffff600 {
compatible = "atmel,at91rm9200-gpio";
reg = <0xfffff600 0x100>;
interrupts = <3 4>;
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
};
pioC: gpio@fffff800 {
compatible = "atmel,at91rm9200-gpio";
reg = <0xfffff800 0x100>;
interrupts = <4 4>;
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
};
dbgu: serial@fffff200 {
compatible = "atmel,at91sam9260-usart";
reg = <0xfffff200 0x200>;