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SubjectRe: [PATCH] arm64: dts: realtek: Add Realtek rtd1619 and mjolnir
Hi James,

Am 08.11.19 um 16:36 schrieb James Tai:
>> Is the UART no longer behind an IRQ mux on RTD1619, or is the above the IRQ
>> mux interrupt as a workaround for lack of in-tree irqchip driver?
> Yes, the UART no longer behind an IRQ mux on RTD1619.

This conflicts with what I see in BSP irq mux code here:

That does show UR0 as bit 2 for the iso irq mux, as for previous SoCs.
Is that code wrong, or does the same UART0 IP block have two alternative
interrupts for backwards compatibility? I therefore held back RTD1619
irq mux patches from my irqchip v4 series [1].

The BSP DT does assign non-mux interrupts to the UART node like you did:
And I obviously trust that you tested your DT to produce serial output.

Also note how there are UR1_TO and UR2_TO (TO = timeout?) in addition to
regular UR1 and UR2 interrupts in the mux above, just as for RTD1295 and
RTD1195 (UR1/UR1_TO only). From my irqmux v4 series posted last night I
had to drop those additional interrupts property values from the DT [2],
as they violate mainline's DesignWare DT schema's maxItems 1 and would
require a new compatible string (and a driver patch to make use of it).



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