linux-kernel - Re: [PATCH v6 2/6] This patch converts the davinci gpio driver to use irqdomain support.

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Date:	Sun, 15 Dec 2013 18:06:01 +0530
From:	Sekhar Nori <nsekhar@...com>
To:	Prabhakar Lad <prabhakar.csengg@...il.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Grygorii Strashko <grygorii.strashko@...com>
CC:	LKML <linux-kernel@...r.kernel.org>,
	DLOS <davinci-linux-open-source@...ux.davincidsp.com>,
	LAK <linux-arm-kernel@...ts.infradead.org>,
	<linux-gpio@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-doc@...r.kernel.org>, Rob Herring <rob.herring@...xeda.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Stephen Warren <swarren@...dotorg.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Rob Landley <rob@...dley.net>,
	Grant Likely <grant.likely@...aro.org>
Subject: Re: [PATCH v6 2/6] This patch converts the davinci gpio driver to
 use irqdomain support.

On Thursday 21 November 2013 11:45 PM, Prabhakar Lad wrote:
> From: "Lad, Prabhakar" <prabhakar.csengg@...il.com>
> 
> Signed-off-by: Lad, Prabhakar <prabhakar.csengg@...il.com>
> [grygorii.strashko@...com:
>  - switch to use one irq-domain per  all GPIO banks
>  - keep irq_create_mapping() call in gpio_to_irq_banked() as it
>    simply transformed to irq_find_mapping() if IRQ mapping exist
>    already]
> Signed-off-by: Grygorii Strashko <grygorii.strashko@...com>

A proper subject line is missing. I added the following as the subject:

gpio: davinci: convert to use irqdomain

and moved your current subject line to become the commit text.

> @@ -396,6 +411,20 @@ static int davinci_gpio_irq_setup(struct platform_device *pdev)
>  	}
>  	clk_prepare_enable(clk);
>  
> +	irq = irq_alloc_descs(-1, 0, ngpio, 0);
> +	if (irq < 0) {
> +		dev_err(dev, "Couldn't allocate IRQ numbers\n");
> +		return -ENODEV;

modified this to:

		return irq;

since your have already received a more relevant error code. With these
modifications and Linus's ack, queuing for v3.14.

Thanks,
Sekhar
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