From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: Wolfram Sang <wsa@the-dreams.de>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
Linus Walleij <linus.walleij@linaro.org>,
Alexandre Courbot <gnurou@gmail.com>,
Octavian Purdila <octavian.purdila@intel.com>,
Robert Dolca <robert.dolca@intel.com>,
linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-acpi@vger.kernel.org
Subject: Re: [PATCH 2/2] i2c / ACPI: Assign IRQ for devices that have GpioInt automatically
Date: Wed, 29 Apr 2015 13:02:49 +0300 [thread overview]
Message-ID: <20150429100249.GR1534@lahna.fi.intel.com> (raw)
In-Reply-To: <20150429095605.GA2470@katana>
On Wed, Apr 29, 2015 at 11:56:06AM +0200, Wolfram Sang wrote:
>
> > - if (!client->irq && dev->of_node) {
> > - int irq = of_irq_get(dev->of_node, 0);
> > + if (client->irq <= 0) {
> > + int irq = -ENOENT;
>
> Why the move from !client->irq to <= 0? If I didn't miss something,
> interrupt numbers are still a sleeping dog with all the unsigned vs
> signed fuzz. If this change is needed, this needs proper description and
> ideally a seperate patch.
It is there because ACPI parts of I2C client enumeration code
initializes client->irq with -1. Alternatively we can change that code
to use 0 for missing IRQ.
next prev parent reply other threads:[~2015-04-29 10:02 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-28 15:05 [PATCH 0/2] ACPI: Translate Linux IRQ number directly from GpioInt Mika Westerberg
2015-04-28 15:05 ` [PATCH 1/2] gpio / ACPI: Add support for retrieving GpioInt resources from a device Mika Westerberg
2015-05-04 23:47 ` Rafael J. Wysocki
2015-05-05 12:29 ` Mika Westerberg
2015-04-28 15:05 ` [PATCH 2/2] i2c / ACPI: Assign IRQ for devices that have GpioInt automatically Mika Westerberg
2015-04-29 9:56 ` Wolfram Sang
2015-04-29 10:02 ` Mika Westerberg [this message]
2015-04-28 17:36 ` [PATCH 0/2] ACPI: Translate Linux IRQ number directly from GpioInt sathyanarayanan kuppuswamy
2015-04-29 9:26 ` Mika Westerberg
2015-04-29 17:45 ` sathyanarayanan kuppuswamy
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