From: Jonathan Cameron <jic23@cam.ac.uk>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: dmitry.torokhov@gmail.com, linux-input@vger.kernel.org,
linux-kernel@vger.kernel.org, Chris Hudson <chudson@kionix.com>
Subject: Re: [PATCH 1/1] input: Add support for Kionix KXTJ9 accelerometer
Date: Mon, 16 May 2011 09:40:14 +0100 [thread overview]
Message-ID: <4DD0E2EE.7010107@cam.ac.uk> (raw)
In-Reply-To: <20110513192710.5b4791ca@lxorguk.ukuu.org.uk>
I'll leave taking a proper look until you have cleared up the issues Alan pointed out.
But as I was taking a quick look...
Firstly I concur entirely with Alan in that most of the sysfs stuff should be
platform data for an input driver.
...
>
>> + memcpy(tj9->pdata, client->dev.platform_data, sizeof(*tj9->pdata));
>> + if (tj9->pdata->init) {
>> + err = tj9->pdata->init();
>> + if (err < 0)
>> + goto err2;
>> + }
>> +
>> + tj9->irq = gpio_to_irq(tj9->pdata->gpio);
>
> What if it's not on a gpio. Probably better any gpio and irq conversion is
> done by the platform callback/init code
Perfectly good irq element in i2c_board_info structure. This is exactly what
it is normally used for.
>
>
> And the sysfs nodes need documentation.
Would be nice to have some docs on that platform data struct as well.
Most of it is fairly obvious, but data_odr_init etc aren't!
>
>
> Overall it looks like a lot of input drivers that get posted here
>
> - Nobody has considered locking between actions and sysfs (or multiple
> sysfs actions in parallel)
> - Enable/disable is implemented in blissful ignorance of what happens if
> a disable occurs during a sysfs or other action
>
> Most of the rest looks like it just needs a good polish.
> --
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>
prev parent reply other threads:[~2011-05-16 8:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-13 18:13 [PATCH]input: Add support for Kionix KXTJ9 accelerometer Chris, Hudson
2011-05-13 18:13 ` [PATCH 1/1] input: " Chris, Hudson
2011-05-13 18:17 ` Chris Hudson
2011-05-13 18:27 ` Alan Cox
2011-05-16 8:40 ` Jonathan Cameron [this message]
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