Re: [RFT v3 4/8] ARM: dts: exynos: Remove MCT subnode for interrupt map on Exynos4210

Marek Szyprowski
2019-09-23T06:56:52Z

Hi Krzysztof,

On 21.09.2019 19:01, Krzysztof Kozlowski wrote:
> Multi Core Timer node has interrupts routed to two different parents -
> GIC and combiner. This was modeled with a interrupt-map within a
> subnode but can be expressed in an easier and more common way, directly
> in the node itself.

Maybe we should simply use 'interrupts-extended' based approach and
simplify mct node even more (get rid of interrupt-parent, interrupts,
size/address cells)?

> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
>
> ---
>
> Not tested.
> ---
> arch/arm/boot/dts/exynos4210.dtsi | 16 ++++++----------
> 1 file changed, 6 insertions(+), 10 deletions(-)
>
> diff --git a/arch/arm/boot/dts/exynos4210.dtsi b/arch/arm/boot/dts/exynos4210.dtsi
> index 6d3f19562aab..38c49ab8c733 100644
> --- a/arch/arm/boot/dts/exynos4210.dtsi
> +++ b/arch/arm/boot/dts/exynos4210.dtsi
> @@ -109,23 +109,19 @@
> mct: timer@10050000 {
> compatible = "samsung,exynos4210-mct";
> reg = <0x10050000 0x800>;
> - interrupt-parent = <&mct_map>;
> - interrupts = <0>, <1>, <2>, <3>, <4>, <5>;
> clocks = <&clock CLK_FIN_PLL>, <&clock CLK_MCT>;
> clock-names = "fin_pll", "mct";
> -
> - mct_map: mct-map {
> - #interrupt-cells = <1>;
> - #address-cells = <0>;
> - #size-cells = <0>;
> - interrupt-map =
> - <0 &gic 0 57 IRQ_TYPE_LEVEL_HIGH>,
> + #address-cells = <0>;
> + #size-cells = <0>;
> + #interrupt-cells = <1>;
> + interrupt-parent = <&mct>;
> + interrupts = <0>, <1>, <2>, <3>, <4>, <5>;
> + interrupt-map = <0 &gic 0 57 IRQ_TYPE_LEVEL_HIGH>,
> <1 &gic 0 69 IRQ_TYPE_LEVEL_HIGH>,
> <2 &combiner 12 6>,
> <3 &combiner 12 7>,
> <4 &gic 0 42 IRQ_TYPE_LEVEL_HIGH>,
> <5 &gic 0 48 IRQ_TYPE_LEVEL_HIGH>;
> - };
> };
>
> watchdog: watchdog@10060000 {

Best regards
--
Marek Szyprowski, PhD
Samsung R&D Institute Poland