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ramips: improve interrupt mapping

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As the Interrupts for the PCI adapters are listed in
devicetree we shouldn't need to have them explicit in the code.

The simplest way to do this is to use of_irq_parse_and_map_pci()
and specify an interrupt-map which identifies the different
PCI hosts by bus/slot numbers.
This has the advantage that the hwirq number are mapped to virq
numbers for us, so the ugly hack can go.

Signed-off-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
NeilBrown
2018-05-12 12:57:46 -07:00
committed by John Crispin
parent 2ad4daf579
commit 5f7396ebef
2 changed files with 13 additions and 68 deletions
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9
target/linux/ramips/dts/mt7621.dtsi
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@@ -440,10 +440,11 @@
0x01000000 0 0x00000000 0x1e160000 0 0x00010000 /* io space */
>;
interrupt-parent = <&gic>;
interrupts = <GIC_SHARED 4 IRQ_TYPE_LEVEL_HIGH
GIC_SHARED 24 IRQ_TYPE_LEVEL_HIGH
GIC_SHARED 25 IRQ_TYPE_LEVEL_HIGH>;
#interrupt-cells = <1>;
interrupt-map-mask = <0xF0000 0 0 1>;
interrupt-map = <0x10000 0 0 1 &gic GIC_SHARED 4 IRQ_TYPE_LEVEL_HIGH>,
<0x20000 0 0 1 &gic GIC_SHARED 24 IRQ_TYPE_LEVEL_HIGH>,
<0x30000 0 0 1 &gic GIC_SHARED 25 IRQ_TYPE_LEVEL_HIGH>;
status = "disabled";