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Message-ID: <20190724163419.GA29254@bogus>
Date: Wed, 24 Jul 2019 10:34:19 -0600
From: Rob Herring <robh@...nel.org>
To: Suman Anna <s-anna@...com>
Cc: Marc Zyngier <marc.zyngier@....com>,
Thomas Gleixner <tglx@...utronix.de>,
Jason Cooper <jason@...edaemon.net>,
Tony Lindgren <tony@...mide.com>,
"Andrew F. Davis" <afd@...com>, Roger Quadros <rogerq@...com>,
Lokesh Vutla <lokeshvutla@...com>,
Grygorii Strashko <grygorii.strashko@...com>,
Sekhar Nori <nsekhar@...com>,
David Lechner <david@...hnology.com>,
Murali Karicheri <m-karicheri2@...com>,
devicetree@...r.kernel.org, linux-omap@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
Suman Anna <s-anna@...com>
Subject: Re: [PATCH 1/6] dt-bindings: irqchip: Add PRUSS interrupt controller
bindings
On Sun, 7 Jul 2019 22:52:38 -0500, Suman Anna wrote:
> The Programmable Real-Time Unit Subsystem (PRUSS) contains an interrupt
> controller (INTC) that can handle various system input events and post
> interrupts back to the device-level initiators. The INTC can support
> upto 64 input events on most SoCs with individual control configuration
> and hardware prioritization. These events are mapped onto 10 interrupt
> lines through two levels of many-to-one mapping support. Different
> interrupt lines are routed to the individual PRU cores or to the
> host CPU or to other PRUSS instances.
>
> The K3 AM65x and J721E SoCs have the next generation of the PRU-ICSS IP,
> commonly called ICSSG. The ICSSG interrupt controller on K3 SoCs provide
> a higher number of host interrupts (20 vs 10) and can handle an increased
> number of input events (160 vs 64) from various SoC interrupt sources.
>
> Add the bindings document for these interrupt controllers on all the
> applicable SoCs. It covers the OMAP architecture SoCs - AM33xx, AM437x
> and AM57xx; the Keystone 2 architecture based 66AK2G SoC; the Davinci
> architecture based OMAPL138 SoCs, and the K3 architecture based AM65x
> and J721E SoCs.
>
> Signed-off-by: Suman Anna <s-anna@...com>
> Signed-off-by: Andrew F. Davis <afd@...com>
> Signed-off-by: Roger Quadros <rogerq@...com>
> ---
> Prior version: https://patchwork.kernel.org/patch/10795771/
>
> .../interrupt-controller/ti,pruss-intc.txt | 92 +++++++++++++++++++
> 1 file changed, 92 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/interrupt-controller/ti,pruss-intc.txt
>
Reviewed-by: Rob Herring <robh@...nel.org>
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