spmi: pmic-arb: Pass the correct of_node to irq_domain_add_tree

Currently, irqchips for all of the subnodes (which represent a given
bus master) point to the parent wrapper node. This is no bueno, as
no interrupts arrive, ever (because nothing references that node).

Fix that by passing a reference to the respective master's of_node.

Worth noting, this is a NOP for devices with only a single master
described.

Signed-off-by: Konrad Dybcio <[email protected]>
Link: https://lore.kernel.org/r/20240522-topic-spmi_multi_master_irqfix-v2-1-7ec92a862b9f@linaro.org
Reviewed-by: Abel Vesa <[email protected]>
Tested-by: Dmitry Baryshkov <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Fixes: 02922ccbb330 ("spmi: pmic-arb: Register controller for bus instead of arbiter")
Cc: [email protected]
Signed-off-by: Stephen Boyd <[email protected]>
Reviewed-by: Bjorn Andersson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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