linux-kernel - Re: [RFC PATCH 07/15] dt: uartlite: merge platform and of

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Message-ID: <877hcryvom.fsf@macbook.be.48ers.dk>
Date:	Wed, 23 Feb 2011 09:58:01 +0100
From:	Peter Korsgaard <jacmet@...site.dk>
To:	Grant Likely <grant.likely@...retlab.ca>
Cc:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	devicetree-discuss@...ts.ozlabs.org, sfr@...b.auug.org.au,
	linux-kernel@...r.kernel.org, davem@...emloft.net,
	sparclinux@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [RFC PATCH 07/15] dt: uartlite: merge platform and of_platform driver bindings

>>>>> "Grant" == Grant Likely <grant.likely@...retlab.ca> writes:

 Grant> of_platform_driver is getting removed, and a single platform_driver
 Grant> can now support both devicetree and non-devicetree use cases.  This
 Grant> patch merges the two driver registrations.

Wee!

 Grant>  static int __devinit ulite_probe(struct platform_device *pdev)
 Grant>  {
 Grant>  	struct resource *res, *res2;
 Grant> +	const __be32 *prop;
 Grant> +	int id = pdev->id;
 
 Grant>  	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 Grant>  	if (!res)
 Grant> @@ -583,7 +586,13 @@ static int __devinit ulite_probe(struct platform_device *pdev)
 Grant>  	if (!res2)
 Grant>  		return -ENODEV;
 
 Grant> -	return ulite_assign(&pdev->dev, pdev->id, res->start, res2->start);
 Grant> +#ifdef CONFIG_OF
 Grant> +	prop = of_get_property(pdev->dev.of_node, "port-number", NULL);
 Grant> +	if (prop)
 Grant> +		id = be32_to_cpup(prop);
 Grant> +#endif
 Grant> +
 Grant> +	return ulite_assign(&pdev->dev, id, res->start, res2->start);
 Grant>  }

Isn't this going to give a build warning about prop being unused on
!CONFIG_OF builds? Perhaps move it down into the CONFIG_OF conditional?

Other than that,

Acked-by: Peter Korsgaard <jacmet@...site.dk>

-- 
Bye, Peter Korsgaard
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