Hi all,
This patch series adds support for the Interrupt Controller for External
Devices (INT-EC) in the Renesas R-Car V3U (r8a779a0) SoC.
As there are two known issues, I'm posting this to a limited audience:
1. External interrupts have not been tested.
Kieran: perhaps IRQ0 can be tested on Falcon with the MIPI DSI/eDP
bridge, by changing
- interrupt-parent = <&gpio1>;
- interrupts = <24 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&intc_ex>;
+ interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
? The "ti,sn65dsi86" driver doesn't seem to use interrupts, though,
so I don't know how feasible this is.
Alternatively, with physical access, IRQ0 is available on test
point CP47, and IRQ2 on the GPIO CN.
2. As recent revisions of R-Car Gen3 Hardware User's Manuals stopped
documenting module clocks for interrupt controllers, I don't know
which Module Stop bits control it. Hence I could not add the intc-ex
module clock to the R-Car V3U clock driver, but have used the CP
clock instead in DTS. Alternatively, as the driver doesn't really
use the clock (except implicitly through Runtime PM), we can drop
it, but that would need an update to the DT bindings.
This series been boot-tested on a remote Falcon development board.
Thanks for your comments!
Geert Uytterhoeven (2):
dt-bindings: irqchip: renesas-irqc: Add R-Car V3U support
arm64: dts: renesas: r8a779a0: Add INTC-EX device node
.../interrupt-controller/renesas,irqc.yaml | 1 +
arch/arm64/boot/dts/renesas/r8a779a0.dtsi | 15 +++++++++++++++
2 files changed, 16 insertions(+)
--
2.25.1
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
