linux-kernel - Re: [PATCH] SPI: Add driver for Cadence SPI controller

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Message-ID: <20140318155916.GD11706@sirena.org.uk>
Date:	Tue, 18 Mar 2014 15:59:16 +0000
From:	Mark Brown <broonie@...nel.org>
To:	Harini Katakam <harini.katakam@...inx.com>
Cc:	"robh+dt@...nel.org" <robh+dt@...nel.org>,
	"pawel.moll@....com" <pawel.moll@....com>,
	"mark.rutland@....com" <mark.rutland@....com>,
	"ijc+devicetree@...lion.org.uk" <ijc+devicetree@...lion.org.uk>,
	"galak@...eaurora.org" <galak@...eaurora.org>,
	"rob@...dley.net" <rob@...dley.net>,
	"grant.likely@...aro.org" <grant.likely@...aro.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-spi@...r.kernel.org" <linux-spi@...r.kernel.org>,
	Michal Simek <michals@...inx.com>
Subject: Re: [PATCH] SPI: Add driver for Cadence SPI controller

On Tue, Mar 18, 2014 at 02:45:09PM +0000, Harini Katakam wrote:

> OK. I dint consider interrupt sharing. 
> Do you think the following implementation would be better?

> status = IRQ_NONE;
> if (intr_status & CDNS_SPI_IXR_MODF_MASK) {
> 	/* Handle this interrupt here */
> 	status = IRQ_HANDLED;
> } else if (intr_status & CDNS_SPI_IXR_TXOW_MASK) {
> 	/* Handle this interrupt here */
> 	status = IRQ_HANDLED;
> }

> return status;

Yes, that looks good.

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