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From: Arnd Bergmann <arnd@arndb.de>
To: Marek Belisko <marek@goldelico.com>
Cc: gregkh@linuxfoundation.org, neilb@suse.de, hns@goldelico.com,
	rob.herring@calxeda.com, pawel.moll@arm.com,
	mark.rutland@arm.com, swarren@wwwdotorg.org,
	ijc+devicetree@hellion.org.uk, rob@landley.net,
	devicetree@vger.kernel.org, linux-doc@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/3] misc: bmp085: Add DT bindings for EOC gpio line and direct irq.
Date: Fri, 15 Nov 2013 14:56:19 +0100	[thread overview]
Message-ID: <201311151456.19585.arnd@arndb.de> (raw)
In-Reply-To: <1384465609-26485-3-git-send-email-marek@goldelico.com>

On Thursday 14 November 2013, Marek Belisko wrote:
> +       if (node && !pdata) {
> +               pdata = devm_kzalloc(dev, sizeof(struct bmp085_platform_data),
> +                                       GFP_KERNEL);
> +               if (!pdata)
> +                       return -ENOMEM;
> +       }
> +

I generally recommend against allocating platform data from inside the driver,
as this requires more code and more memory than just adding fields to the
driver-specific data structure and copying over the fields from either
DT or the supplied platform data, depending on which one is used.

	Arnd

  reply	other threads:[~2013-11-15 13:56 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-14 21:46 [PATCH 0/3] Add EOC handling for bmp085 + DT and platform data updates Marek Belisko
     [not found] ` <1384465609-26485-1-git-send-email-marek-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2013-11-14 21:46   ` [PATCH 1/3] misc: bmp085: Clean up and enable use of interrupt for completion Marek Belisko
2013-11-14 21:46   ` [PATCH 2/3] misc: bmp085: Add DT bindings for EOC gpio line and direct irq Marek Belisko
2013-11-15 13:56     ` Arnd Bergmann [this message]
2013-11-15 15:30     ` Mark Rutland
2013-11-15 18:47       ` Arnd Bergmann
2013-11-18  8:58       ` Belisko Marek
     [not found]         ` <CAAfyv346pUa9k3+9jdBX+EK8cV9GenaBxrAnVnKsbUPBoNBqrQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-11-18 11:38           ` Arnd Bergmann
     [not found]             ` <201311181238.40349.arnd-r2nGTMty4D4@public.gmane.org>
2013-11-18 17:17               ` Gerhard Sittig
     [not found]                 ` <20131118171747.GM17929-kDjWylLy9wD0K7fsECOQyeGNnDKD8DIp@public.gmane.org>
2013-11-18 22:28                   ` Arnd Bergmann
     [not found]                     ` <201311182328.40743.arnd-r2nGTMty4D4@public.gmane.org>
2013-11-20 21:34                       ` [PATCH v1 1/1] dt: binding: reword PowerPC 8xxx GPIO documentation Gerhard Sittig
     [not found]                         ` <1384983293-11002-1-git-send-email-gsi-ynQEQJNshbs@public.gmane.org>
2013-11-20 23:50                           ` Rob Herring
     [not found]                             ` <CAL_JsqJvxA240QEreWPp2L+eNFQmhp0XV=qmO4QXqTga+RFuCQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-11-21  8:30                               ` Gerhard Sittig
2013-11-21  0:49                           ` Arnd Bergmann
     [not found]                             ` <201311210149.43944.arnd-r2nGTMty4D4@public.gmane.org>
2013-11-21  8:34                               ` Gerhard Sittig
2013-11-21  8:41                           ` [PATCH v2 " Gerhard Sittig
     [not found]                             ` <1385023304-15396-1-git-send-email-gsi-ynQEQJNshbs@public.gmane.org>
2013-12-03  6:02                               ` Rob Herring
2013-11-20 23:23                       ` [PATCH 2/3] misc: bmp085: Add DT bindings for EOC gpio line and direct irq Gerhard Sittig
2013-11-14 21:46 ` [PATCH 3/3] misc: bmp085: Add missing platform data Marek Belisko
2013-11-15 13:58   ` Arnd Bergmann
2013-11-16  8:23     ` Dr. H. Nikolaus Schaller

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