linux-kernel - Re: [PATCH v2 1/2] input: touchscreen: pixcir_i2c_ts: Add support for optional wakeup interrupt

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Message-ID: <55AF2909.5090609@ti.com>
Date:	Wed, 22 Jul 2015 10:54:25 +0530
From:	Vignesh R <vigneshr@...com>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Tony Lindgren <tony@...mide.com>
CC:	Benoit Cousson <bcousson@...libre.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	Roger Quadros <rogerq@...com>,
	Henrik Rydberg <rydberg@...math.org>,
	Frodo Lai <frodo.lai@...il.com>,
	Jingoo Han <jg1.han@...sung.com>, <linux-omap@...r.kernel.org>,
	<devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linux-input@...r.kernel.org>
Subject: Re: [PATCH v2 1/2] input: touchscreen: pixcir_i2c_ts: Add support
 for optional wakeup interrupt

Hi Dmitry,

On 07/20/2015 11:54 AM, Dmitry Torokhov wrote:
> On Sun, Jul 19, 2015 at 11:09:30PM -0700, Tony Lindgren wrote:
>> * Vignesh R <vigneshr@...com> [150719 21:53]:
>>> @@ -445,6 +443,8 @@ static struct pixcir_ts_platform_data *pixcir_parse_dt(struct device *dev)
>>>  	dev_dbg(dev, "%s: x %d, y %d, gpio %d\n", __func__,
>>>  		pdata->x_max + 1, pdata->y_max + 1, pdata->gpio_attb);
>>>  
>>> +	pdata->wakeirq = of_irq_get_byname(dev->of_node, "wakeupirq");
>>> +
>>>  	return pdata;
>>
>> What about handling -EPROVE_DEFER here? At least pinctrl-single can be
>> be a loadable module for the dedicated wakeirqs.
> 
> Right. I think we should only allow -ENODATA to continue and return
> error in all other cases.

-EINVAL will be returned if "interrupt-names" is not specified. I will
make execption for -ENODATA & -EINVAL, and return error in all other cases?

> 
> Also, I think "irq" suffix on name is redundant.

Ok, will drop "irq" suffix:

+		interrupt-names = "tsc", "wakeup";

> 
> Thanks.
> 

-- 
Regards
Vignesh
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