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authorVladimir Oltean <vladimir.oltean@nxp.com>2021-12-14 15:58:52 +0200
committerArnd Bergmann <arnd@arndb.de>2022-03-16 19:41:14 +0100
commit1447c635802fd0f5e213ad5277753108d56a4db3 (patch)
tree9df46896cd36221fca040aab80fe7c931edb85d6
parentdfd42facf1e4ada021b939b4e19c935dcdd55566 (diff)
downloadlinux-1447c635802fd0f5e213ad5277753108d56a4db3.tar.gz
Revert "arm64: dts: freescale: Fix 'interrupt-map' parent address cells"
This reverts commit 869f0ec048dc8fd88c0b2003373bd985795179fb. That updated the expected device tree binding format for the ls-extirq driver, without also updating the parsing code (ls_extirq_parse_map) to the new format. The context is that the ls-extirq driver uses the standard "interrupt-map" OF property in a non-standard way, as suggested by Rob Herring during review: https://lore.kernel.org/lkml/20190927161118.GA19333@bogus/ This has turned out to be problematic, as Marc Zyngier discovered through commit 041284181226 ("of/irq: Allow matching of an interrupt-map local to an interrupt controller"), later fixed through commit de4adddcbcc2 ("of/irq: Add a quirk for controllers with their own definition of interrupt-map"). Marc's position, expressed on multiple opportunities, is that: (a) [ making private use of the reserved "interrupt-map" name in a driver ] "is wrong, by the very letter of what an interrupt-map means. If the interrupt map points to an interrupt controller, that's the target for the interrupt." https://lore.kernel.org/lkml/87k0g8jlmg.wl-maz@kernel.org/ (b) [ updating the driver's bindings to accept a non-reserved name for this property, as an alternative, is ] "is totally pointless. These machines have been in the wild for years, and existing DTs will be there *forever*." https://lore.kernel.org/lkml/87ilvrk1r0.wl-maz@kernel.org/ Considering the above, the Linux kernel has quirks in place to deal with the ls-extirq's non-standard use of the "interrupt-map". These quirks may be needed in other operating systems that consume this device tree, yet this is seen as the only viable solution. Therefore, the premise of the patch being reverted here is invalid. It doesn't matter whether the driver, in its non-standard use of the property, complies to the standard format or not, since this property isn't expected to be used for interrupt translation by the core. This change restores LS1088A, LS2088A/LS2085A and LX2160A to their previous bindings, which allows these systems to continue to use external interrupt lines with the correct polarity. Fixes: 869f0ec048dc ("arm64: dts: freescale: Fix 'interrupt-map' parent address cells") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Acked-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-rw-r--r--arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi24
-rw-r--r--arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi24
-rw-r--r--arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi24
3 files changed, 36 insertions, 36 deletions
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
index 3ed1f2c51cad..18e529118476 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
@@ -253,18 +253,18 @@
interrupt-controller;
reg = <0x14 4>;
interrupt-map =
- <0 0 &gic 0 0 GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
- <1 0 &gic 0 0 GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
- <2 0 &gic 0 0 GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
- <3 0 &gic 0 0 GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
- <4 0 &gic 0 0 GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
- <5 0 &gic 0 0 GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
- <6 0 &gic 0 0 GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
- <7 0 &gic 0 0 GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
- <8 0 &gic 0 0 GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
- <9 0 &gic 0 0 GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
- <10 0 &gic 0 0 GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
- <11 0 &gic 0 0 GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+ <0 0 &gic GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+ <1 0 &gic GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+ <2 0 &gic GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+ <3 0 &gic GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
+ <4 0 &gic GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+ <5 0 &gic GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+ <6 0 &gic GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+ <7 0 &gic GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+ <8 0 &gic GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+ <9 0 &gic GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
+ <10 0 &gic GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+ <11 0 &gic GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
interrupt-map-mask = <0xffffffff 0x0>;
};
};
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
index 3cb9c21d2775..1282b61da8a5 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
@@ -293,18 +293,18 @@
interrupt-controller;
reg = <0x14 4>;
interrupt-map =
- <0 0 &gic 0 0 GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
- <1 0 &gic 0 0 GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
- <2 0 &gic 0 0 GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
- <3 0 &gic 0 0 GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
- <4 0 &gic 0 0 GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
- <5 0 &gic 0 0 GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
- <6 0 &gic 0 0 GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
- <7 0 &gic 0 0 GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
- <8 0 &gic 0 0 GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
- <9 0 &gic 0 0 GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
- <10 0 &gic 0 0 GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
- <11 0 &gic 0 0 GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+ <0 0 &gic GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+ <1 0 &gic GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+ <2 0 &gic GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+ <3 0 &gic GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
+ <4 0 &gic GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+ <5 0 &gic GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+ <6 0 &gic GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+ <7 0 &gic GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+ <8 0 &gic GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+ <9 0 &gic GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
+ <10 0 &gic GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+ <11 0 &gic GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
interrupt-map-mask = <0xffffffff 0x0>;
};
};
diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
index 7032505f5ef3..3c611cb4f5fe 100644
--- a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
@@ -680,18 +680,18 @@
interrupt-controller;
reg = <0x14 4>;
interrupt-map =
- <0 0 &gic 0 0 GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
- <1 0 &gic 0 0 GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
- <2 0 &gic 0 0 GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
- <3 0 &gic 0 0 GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
- <4 0 &gic 0 0 GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
- <5 0 &gic 0 0 GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
- <6 0 &gic 0 0 GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
- <7 0 &gic 0 0 GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
- <8 0 &gic 0 0 GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
- <9 0 &gic 0 0 GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
- <10 0 &gic 0 0 GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
- <11 0 &gic 0 0 GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+ <0 0 &gic GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+ <1 0 &gic GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+ <2 0 &gic GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+ <3 0 &gic GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
+ <4 0 &gic GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+ <5 0 &gic GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+ <6 0 &gic GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+ <7 0 &gic GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+ <8 0 &gic GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+ <9 0 &gic GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
+ <10 0 &gic GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+ <11 0 &gic GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
interrupt-map-mask = <0xffffffff 0x0>;
};
};