linux-kernel - Re: [PATCH v5 05/10] dt-bindings: irqchip: Introduce TISCI Interrupt router bindings

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Message-ID: <20190212162247.GK5720@atomide.com>
Date:   Tue, 12 Feb 2019 08:22:47 -0800
From:   Tony Lindgren <tony@...mide.com>
To:     Lokesh Vutla <lokeshvutla@...com>
Cc:     marc.zyngier@....com, Nishanth Menon <nm@...com>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Rob Herring <robh+dt@...nel.org>, tglx@...utronix.de,
        jason@...edaemon.net,
        Linux ARM Mailing List <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel@...r.kernel.org,
        Device Tree Mailing List <devicetree@...r.kernel.org>,
        Sekhar Nori <nsekhar@...com>, Tero Kristo <t-kristo@...com>,
        Peter Ujfalusi <peter.ujfalusi@...com>
Subject: Re: [PATCH v5 05/10] dt-bindings: irqchip: Introduce TISCI Interrupt
 router bindings

Hi,

* Lokesh Vutla <lokeshvutla@...com> [190212 07:43]:
> +Example:
> +--------
> +The following example demonstrates both interrupt router node and the consumer
> +node(main gpio) on the AM654 SoC:
> +
> +main_intr: interrupt-controller0 {
> +	compatible = "ti,sci-intr";
> +	interrupt-controller;
> +	interrupt-parent = <&gic500>;
> +	#interrupt-cells = <4>;
> +	ti,sci = <&dmsc>;
> +	ti,sci-dst-id = <56>;
> +	ti,sci-rm-range-girq = <0x1>;
> +};

Can you describe a bit what the "ti,sci-dst-id" is above?

These IDs seem to be listed at at [0] below, but is it really a property
of the hardware? Or is it some enumeration of SoC devices in the firmware?

Regards,

Tony


[0] http://downloads.ti.com/tisci/esd/latest/5_soc_doc/am6x/irq_dsts.html