linux-kernel - Re: [PATCH v4 5/5] irqchip/irq-pruss-intc: Add support for ICSSG INTC on K3 SoCs

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Message-ID: <015909fa-794c-c938-d944-897985475d20@lechnology.com>
Date:   Wed, 29 Jul 2020 14:28:42 -0500
From:   David Lechner <david@...hnology.com>
To:     Grzegorz Jaszczyk <grzegorz.jaszczyk@...aro.org>,
        tglx@...utronix.de, jason@...edaemon.net, maz@...nel.org,
        s-anna@...com
Cc:     robh+dt@...nel.org, lee.jones@...aro.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        wmills@...com, praneeth@...com
Subject: Re: [PATCH v4 5/5] irqchip/irq-pruss-intc: Add support for ICSSG INTC
 on K3 SoCs

On 7/28/20 4:18 AM, Grzegorz Jaszczyk wrote:
> From: Suman Anna <s-anna@...com>
> 
> The K3 AM65x and J721E SoCs have the next generation of the PRU-ICSS IP,
> commonly called ICSSG. The PRUSS INTC present within the ICSSG supports
> more System Events (160 vs 64), more Interrupt Channels and Host Interrupts
> (20 vs 10) compared to the previous generation PRUSS INTC instances. The
> first 2 and the last 10 of these host interrupt lines are used by the
> PRU and other auxiliary cores and sub-modules within the ICSSG, with 8
> host interrupts connected to MPU. The host interrupts 5, 6, 7 are also
> connected to the other ICSSG instances within the SoC and can be
> partitioned as per system integration through the board dts files.
> 
> Enhance the PRUSS INTC driver to add support for this ICSSG INTC
> instance.
> 
> Signed-off-by: Suman Anna <s-anna@...com>
> Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@...aro.org>
> ---

There is not much left in this patch. Might as well squash this into
"irqchip/irq-pruss-intc: Add a PRUSS irqchip driver for PRUSS interrupts".