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Commit e4ba0a9b authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Simon Horman
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ARM: shmobile: r8a73a4: Move pfc node to work around probe ordering bug 



Currently the pin function controller (which is also a GPIO controller)
is instantiated before the interrupt controllers due to the order in the
DTS. At that time, the irq domains for the interrupt controllers
referenced by its interrupts-extended property cannot be found yet:

    irq: no irq domain found for /interrupt-controller@e61c0000 !

Nevertheless, the core OF probing code ignores this failure, besides a
debug message that's not normally printed:

    not all legacy IRQ resources mapped for pfc

and continues initialization of the device. Then, the sh-pfc driver
cannot find any IRQ resources, and thinks no interrupts are available,
causing gpio-keys to fail later:

    gpio-keys keyboard: Unable to claim irq 0; error -22
    gpio-keys: probe of keyboard failed with error -22

Move the pin function controller node after the interrupt controller
nodes it references to work around the bug in the core OF probing code.

Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: default avatarSimon Horman <horms+renesas@verge.net.au>
parent a656c603

arch/arm/boot/dts/r8a73a4.dtsi

+23 −23
Original line number Diff line number Diff line
@@ -92,29 +92,6 @@ 
		};

	};



	pfc: pfc@e6050000 {

		compatible = "renesas,pfc-r8a73a4";

		reg = <0 0xe6050000 0 0x9000>;

		gpio-controller;

		#gpio-cells = <2>;

		interrupts-extended =

			<&irqc0  0 0>, <&irqc0  1 0>, <&irqc0  2 0>, <&irqc0  3 0>,

			<&irqc0  4 0>, <&irqc0  5 0>, <&irqc0  6 0>, <&irqc0  7 0>,

			<&irqc0  8 0>, <&irqc0  9 0>, <&irqc0 10 0>, <&irqc0 11 0>,

			<&irqc0 12 0>, <&irqc0 13 0>, <&irqc0 14 0>, <&irqc0 15 0>,

			<&irqc0 16 0>, <&irqc0 17 0>, <&irqc0 18 0>, <&irqc0 19 0>,

			<&irqc0 20 0>, <&irqc0 21 0>, <&irqc0 22 0>, <&irqc0 23 0>,

			<&irqc0 24 0>, <&irqc0 25 0>, <&irqc0 26 0>, <&irqc0 27 0>,

			<&irqc0 28 0>, <&irqc0 29 0>, <&irqc0 30 0>, <&irqc0 31 0>,

			<&irqc1  0 0>, <&irqc1  1 0>, <&irqc1  2 0>, <&irqc1  3 0>,

			<&irqc1  4 0>, <&irqc1  5 0>, <&irqc1  6 0>, <&irqc1  7 0>,

			<&irqc1  8 0>, <&irqc1  9 0>, <&irqc1 10 0>, <&irqc1 11 0>,

			<&irqc1 12 0>, <&irqc1 13 0>, <&irqc1 14 0>, <&irqc1 15 0>,

			<&irqc1 16 0>, <&irqc1 17 0>, <&irqc1 18 0>, <&irqc1 19 0>,

			<&irqc1 20 0>, <&irqc1 21 0>, <&irqc1 22 0>, <&irqc1 23 0>,

			<&irqc1 24 0>, <&irqc1 25 0>;

	};



	i2c5: i2c@e60b0000 {

		#address-cells = <1>;

		#size-cells = <0>;
@@ -210,6 +187,29 @@ 
			     <0 57 IRQ_TYPE_LEVEL_HIGH>;

	};



	pfc: pfc@e6050000 {

		compatible = "renesas,pfc-r8a73a4";

		reg = <0 0xe6050000 0 0x9000>;

		gpio-controller;

		#gpio-cells = <2>;

		interrupts-extended =

			<&irqc0  0 0>, <&irqc0  1 0>, <&irqc0  2 0>, <&irqc0  3 0>,

			<&irqc0  4 0>, <&irqc0  5 0>, <&irqc0  6 0>, <&irqc0  7 0>,

			<&irqc0  8 0>, <&irqc0  9 0>, <&irqc0 10 0>, <&irqc0 11 0>,

			<&irqc0 12 0>, <&irqc0 13 0>, <&irqc0 14 0>, <&irqc0 15 0>,

			<&irqc0 16 0>, <&irqc0 17 0>, <&irqc0 18 0>, <&irqc0 19 0>,

			<&irqc0 20 0>, <&irqc0 21 0>, <&irqc0 22 0>, <&irqc0 23 0>,

			<&irqc0 24 0>, <&irqc0 25 0>, <&irqc0 26 0>, <&irqc0 27 0>,

			<&irqc0 28 0>, <&irqc0 29 0>, <&irqc0 30 0>, <&irqc0 31 0>,

			<&irqc1  0 0>, <&irqc1  1 0>, <&irqc1  2 0>, <&irqc1  3 0>,

			<&irqc1  4 0>, <&irqc1  5 0>, <&irqc1  6 0>, <&irqc1  7 0>,

			<&irqc1  8 0>, <&irqc1  9 0>, <&irqc1 10 0>, <&irqc1 11 0>,

			<&irqc1 12 0>, <&irqc1 13 0>, <&irqc1 14 0>, <&irqc1 15 0>,

			<&irqc1 16 0>, <&irqc1 17 0>, <&irqc1 18 0>, <&irqc1 19 0>,

			<&irqc1 20 0>, <&irqc1 21 0>, <&irqc1 22 0>, <&irqc1 23 0>,

			<&irqc1 24 0>, <&irqc1 25 0>;

	};



	thermal@e61f0000 {

		compatible = "renesas,thermal-r8a73a4", "renesas,rcar-thermal";

		reg = <0 0xe61f0000 0 0x14>, <0 0xe61f0100 0 0x38>,