Marc Zyngier e7985f4360 of: property: Fix fw_devlink handling of interrupt-map ... Commit d976c6f4b3 ("of: property: Add fw_devlink support for interrupt-map property") tried to do what it says on the tin, but failed on a couple of points: - it confuses bytes and cells. Not a huge deal, except when it comes to pointer arithmetic - it doesn't really handle anything but interrupt-maps that have their parent #address-cells set to 0 The combinations of the two leads to some serious fun on my M1 box, with plenty of WARN-ON() firing all over the shop, and amusing values being generated for interrupt specifiers. Having 2 versions of parsing code for "interrupt-map" was a bad idea. Now that the common parsing parts have been refactored into of_irq_parse_imap_parent(), rework the code here to use it instead and fix the pointer arithmetic. Note that the dependency will be a bit different than the original code when the interrupt-map points to another interrupt-map. In this case, the original code would resolve to the final interrupt controller. Now the dependency is the parent interrupt-map (which itself should have a dependency to the parent). It is possible that a node with an interrupt-map has no driver. Fixes: d976c6f4b3 ("of: property: Add fw_devlink support for interrupt-map property") Signed-off-by: Marc Zyngier <maz@kernel.org> Co-developed-by: Rob Herring (Arm) <robh@kernel.org> Cc: Saravana Kannan <saravanak@google.com> Tested-by: Marc Zyngier <maz@kernel.org> Tested-by: Anup Patel <apatel@ventanamicro.com> Link: https://lore.kernel.org/r/20240529-dt-interrupt-map-fix-v2-2-ef86dc5bcd2a@kernel.org Signed-off-by: Rob Herring (Arm) <robh@kernel.org>		2024-05-30 19:43:47 -05:00
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unittest-data	…
.kunitconfig	…
Kconfig	…
Makefile	…
address.c	…
base.c	…
cpu.c	…
device.c	…
dynamic.c	…
empty_root.dts	…
fdt.c	…
fdt_address.c	…
irq.c	of/irq: Factor out parsing of interrupt-map parent phandle+args from of_irq_parse_raw()	2024-05-30 19:43:19 -05:00
kexec.c	…
kobj.c	…
module.c	…
of_numa.c	…
of_private.h	of/irq: Factor out parsing of interrupt-map parent phandle+args from of_irq_parse_raw()	2024-05-30 19:43:19 -05:00
of_reserved_mem.c	…
of_test.c	of: of_test: add MODULE_DESCRIPTION()	2024-05-28 12:10:00 -05:00
overlay.c	…
pdt.c	…
platform.c	…
property.c	of: property: Fix fw_devlink handling of interrupt-map	2024-05-30 19:43:47 -05:00
resolver.c	…
unittest.c	I2C core removes an argument from the i2c_mux_add_adapter() call to	2024-05-20 08:55:18 -07:00