linux-kernel - Re: [PATCH] irqchip: add support for Marvell Orion SoCs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20130502193510.GA29522@obsidianresearch.com>
Date:	Thu, 2 May 2013 13:35:10 -0600
From:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>
To:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Cc:	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Andrew Lunn <andrew@...n.ch>,
	Russell King <linux@....linux.org.uk>,
	Jason Cooper <jason@...edaemon.net>,
	Arnd Bergmann <arnd@...db.de>,
	Jean-Francois Moine <moinejf@...e.fr>,
	devicetree-discuss@...ts.ozlabs.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Rob Herring <rob.herring@...xeda.com>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Landley <rob@...dley.net>,
	Gregory Clement <gregory.clement@...e-electrons.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] irqchip: add support for Marvell Orion SoCs

On Thu, May 02, 2013 at 09:05:38PM +0200, Sebastian Hesselbarth wrote:

> >>+static struct of_device_id orion_irq_dt_ids[] __initconst = {
> >>+	{ .compatible = "marvell,orion-mpic", .data = orion_of_init },
> >>+	{ }
> >
> >Is there a strong reason to change the compatible string? Looks to me
> >like either the new driver or the old driver will bind depending on
> >what is in the machine description. No need for a new string?
> 
> The reason for a new compatible string is, that we will also need an
> secondary irq controller for bridge irqs. That could be called
> marvell,orion-spic. Dove is again a little bit different than the
> others and this will require timer and especially rtc not to share
> bridge irqs here. RTC irq is located in PMU regs on Dove instead of
> bridge regs.

As Arnd mentioned, I would keep the old name then..

The bridge controller can be called marvell,orion-intc-bridge, and if
Dove needs a pmu controller, marvell,dove-intc-pmu ?

> >.. which lets this go away, use the generic irqchip_init instead of
> >orion_init_irq.
> 
> Same as above.

I have kirkwood HW but I haven't had time to make newer kernels run on
it, otherwise I'd test it too :(

Jason
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/