From: Roger Quadros <rogerq@ti.com>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: rydberg@euromail.se, jcbian@pixcir.com.cn,
linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org
Subject: Re: [PATCH 3/9] Input: pixcir_i2c_ts: Initialize interrupt mode and power mode
Date: Thu, 19 Dec 2013 11:27:13 +0530 [thread overview]
Message-ID: <52B28AB9.5080405@ti.com> (raw)
In-Reply-To: <20131218141408.GC28504@core.coreip.homeip.net>
On 12/18/2013 07:44 PM, Dmitry Torokhov wrote:
> On Wed, Dec 18, 2013 at 02:51:14PM +0530, Roger Quadros wrote:
>> +
>> +static int pixcir_stop(struct pixcir_i2c_ts_data *ts)
>> +{
>> + struct device *dev = &ts->client->dev;
>> + int ret;
>> +
>> + /* disable interrupt generation */
>> + ret = pixcir_int_enable(ts, 0);
>> + if (ret) {
>> + dev_err(dev, "Failed to disable interrupt generation\n");
>> + return ret;
>> + }
>> +
>> + disable_irq(ts->client->irq);
>
> Why do you need to disable IRQ? If you disable interrupt generation in
> the chip I think you only need to call synchronize_irq() to make sure
> it's completed if it happens to be running. Also you need to move the
> code:
Agreed, no need to call disable_irq().
>
> tsdata->exiting = true;
> mb();
>
> here from pixcir_i2c_ts_remove() to make sure handler exits promptly.
>
> You will also need to reset tsdata->exiting in your start method.
>
OK.
cheers,
-roger
WARNING: multiple messages have this Message-ID (diff)
From: Roger Quadros <rogerq@ti.com>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: <rydberg@euromail.se>, <jcbian@pixcir.com.cn>,
<linux-input@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<devicetree@vger.kernel.org>
Subject: Re: [PATCH 3/9] Input: pixcir_i2c_ts: Initialize interrupt mode and power mode
Date: Thu, 19 Dec 2013 11:27:13 +0530 [thread overview]
Message-ID: <52B28AB9.5080405@ti.com> (raw)
In-Reply-To: <20131218141408.GC28504@core.coreip.homeip.net>
On 12/18/2013 07:44 PM, Dmitry Torokhov wrote:
> On Wed, Dec 18, 2013 at 02:51:14PM +0530, Roger Quadros wrote:
>> +
>> +static int pixcir_stop(struct pixcir_i2c_ts_data *ts)
>> +{
>> + struct device *dev = &ts->client->dev;
>> + int ret;
>> +
>> + /* disable interrupt generation */
>> + ret = pixcir_int_enable(ts, 0);
>> + if (ret) {
>> + dev_err(dev, "Failed to disable interrupt generation\n");
>> + return ret;
>> + }
>> +
>> + disable_irq(ts->client->irq);
>
> Why do you need to disable IRQ? If you disable interrupt generation in
> the chip I think you only need to call synchronize_irq() to make sure
> it's completed if it happens to be running. Also you need to move the
> code:
Agreed, no need to call disable_irq().
>
> tsdata->exiting = true;
> mb();
>
> here from pixcir_i2c_ts_remove() to make sure handler exits promptly.
>
> You will also need to reset tsdata->exiting in your start method.
>
OK.
cheers,
-roger
next prev parent reply other threads:[~2013-12-19 5:57 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-18 9:21 [PATCH 0/9] Input: pixcir_i2c_ts: Add Type-B Multitouch support Roger Quadros
2013-12-18 9:21 ` Roger Quadros
2013-12-18 9:21 ` [PATCH 1/9] Input: pixcir_i2c_ts: Add device tree support Roger Quadros
2013-12-18 9:21 ` Roger Quadros
2013-12-18 14:09 ` Dmitry Torokhov
2013-12-19 6:12 ` Roger Quadros
2013-12-19 6:12 ` Roger Quadros
2013-12-18 9:21 ` [PATCH 2/9] Input: pixcir_i2c_ts: Add register definitions Roger Quadros
2013-12-18 9:21 ` Roger Quadros
2013-12-18 14:09 ` Dmitry Torokhov
2013-12-18 9:21 ` [PATCH 3/9] Input: pixcir_i2c_ts: Initialize interrupt mode and power mode Roger Quadros
2013-12-18 9:21 ` Roger Quadros
[not found] ` <1387358480-8313-4-git-send-email-rogerq-l0cyMroinI0@public.gmane.org>
2013-12-18 14:14 ` Dmitry Torokhov
2013-12-18 14:14 ` Dmitry Torokhov
2013-12-19 5:57 ` Roger Quadros [this message]
2013-12-19 5:57 ` Roger Quadros
2013-12-18 9:21 ` [PATCH 4/9] Input: pixcir_i2c_ts: Use devres managed resource allocations Roger Quadros
2013-12-18 9:21 ` Roger Quadros
2013-12-18 14:15 ` Dmitry Torokhov
2013-12-18 9:21 ` [PATCH 5/9] Input: pixcir_i2c_ts: Get rid of pdata->attb_read_val() Roger Quadros
2013-12-18 9:21 ` Roger Quadros
2013-12-18 14:20 ` Dmitry Torokhov
2013-12-19 5:54 ` Roger Quadros
2013-12-19 5:54 ` Roger Quadros
2013-12-18 9:21 ` [PATCH 6/9] Input: pixcir_i2c_ts: Add chip specific data structure Roger Quadros
2013-12-18 9:21 ` Roger Quadros
2013-12-18 9:21 ` [PATCH 7/9] Input: pixcir_i2c_ts: Implement Type B Multi Touch reporting Roger Quadros
2013-12-18 9:21 ` Roger Quadros
2013-12-18 14:18 ` Dmitry Torokhov
[not found] ` <20131218141841.GE28504-WlK9ik9hQGAhIp7JRqBPierSzoNAToWh@public.gmane.org>
2013-12-19 5:49 ` Roger Quadros
2013-12-19 5:49 ` Roger Quadros
2013-12-21 20:02 ` Henrik Rydberg
2013-12-18 9:21 ` [PATCH 8/9] Input: pixcir_i2c_ts: Add support for TangoC family Roger Quadros
2013-12-18 9:21 ` Roger Quadros
2013-12-18 9:21 ` [PATCH 9/9] Input: pixcir_i2c_ts: Implement wakeup from suspend Roger Quadros
2013-12-18 9:21 ` Roger Quadros
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