linux-kernel - Re: [PATCH v2 07/10] input: touchscreen: touch_adc: add generic resistive ADC touchscreen

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Date:   Fri, 6 Apr 2018 16:13:22 +0100
From:   Jonathan Cameron <Jonathan.Cameron@...wei.com>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>
CC:     Jonathan Cameron <jic23@...nel.org>,
        Eugen Hristev <eugen.hristev@...rochip.com>,
        <ludovic.desroches@...rochip.com>, <alexandre.belloni@...tlin.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-iio@...r.kernel.org>, <linux-input@...r.kernel.org>,
        <nicolas.ferre@...rochip.com>
Subject: Re: [PATCH v2 07/10] input: touchscreen: touch_adc: add generic
 resistive ADC touchscreen

> > > +
> > > +	input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
> > > +	input->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
> > > +
> > > +	st->input = input;
> > > +	input_set_drvdata(input, st);
> > > +
> > > +	ret = input_register_device(input);
> > > +	if (ret) {
> > > +		dev_err(dev, "failed to register input device.");
> > > +		return ret;
> > > +	}
> > > +
> > > +	st->iio_cb = iio_channel_get_all_cb(&pdev->dev, grts_cb, st);  
> 
> Hmm, we don't have devm-variant for this? Then you could use
> devm_add_action_or_reset() to add cleanup action and completely remove
> grts_remove().
Not yet, but I'm not adverse to having one...