From: Timur Tabi <timur@codeaurora.org>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>,
Linus Walleij <linus.walleij@linaro.org>,
Alexandre Courbot <gnurou@gmail.com>,
Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Mathias Nyman <mathias.nyman@linux.intel.com>,
Ning Li <ning.li@intel.com>, Alan Cox <alan@linux.intel.com>,
lkml <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 0/2] pinctrl: Intel Cherryview/Braswell support
Date: Tue, 04 Nov 2014 16:39:12 -0600 [thread overview]
Message-ID: <54595590.7080603@codeaurora.org> (raw)
In-Reply-To: <54595416.1020205@codeaurora.org>
On 11/04/2014 04:32 PM, Timur Tabi wrote:
>
> There are lots of situations where you don't know the size of the
> property in advance (e.g. strings), and drivers use of_find_property()
> or of_get_property() to pre-allocate a buffer or to verify that the
> property is correctly formed in the device tree.
To follow-up, I have this problem right now with pinctrl_dt_to_map().
The pinctrl-%d property in the device tree is an array of phandles. The
array can be any size, and pinctrl_dt_to_map() queries the size of the
property to determine how many phandles there are. It iterates over all
of them. How do I support that with device_property_read_u32_array()?
That function expects to be told how many phandles there are, and it
doesn't even tell me if there are more or fewer than the number I've given.
--
Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the
Code Aurora Forum, a Linux Foundation Collaborative Project.
next prev parent reply other threads:[~2014-11-04 22:39 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-03 11:01 [PATCH v2 0/2] pinctrl: Intel Cherryview/Braswell support Mika Westerberg
2014-11-03 11:01 ` [PATCH v2 1/2] gpio / ACPI: Add knowledge about pin controllers to acpi_get_gpiod() Mika Westerberg
2014-11-04 10:18 ` Linus Walleij
2014-11-03 11:01 ` [PATCH v2 2/2] pinctrl: Add Intel Cherryview/Braswell pin controller support Mika Westerberg
2014-11-04 10:23 ` Linus Walleij
2014-11-03 23:24 ` [PATCH v2 0/2] pinctrl: Intel Cherryview/Braswell support Timur Tabi
2014-11-04 8:20 ` Mika Westerberg
2014-11-04 9:39 ` Mika Westerberg
2014-11-04 13:31 ` Rafael J. Wysocki
2014-11-04 13:48 ` Linus Walleij
2014-11-04 14:16 ` Rafael J. Wysocki
2014-11-04 14:12 ` Mika Westerberg
2014-11-04 16:37 ` Timur Tabi
2014-11-04 21:51 ` Timur Tabi
2014-11-04 22:47 ` Rafael J. Wysocki
2014-11-04 22:32 ` Timur Tabi
2014-11-04 22:39 ` Timur Tabi [this message]
2014-11-04 23:13 ` Rafael J. Wysocki
2014-11-04 22:56 ` Timur Tabi
2014-11-04 23:18 ` Timur Tabi
2014-11-05 21:04 ` Rafael J. Wysocki
2014-11-05 21:19 ` Rafael J. Wysocki
2014-11-04 23:00 ` Rafael J. Wysocki
2014-11-04 17:54 ` Timur Tabi
2014-11-04 19:04 ` Mika Westerberg
2014-11-06 19:30 ` Linus Walleij
2014-11-05 21:46 ` Grant Likely
2014-11-05 21:59 ` Timur Tabi
2014-11-05 22:15 ` Rafael J. Wysocki
2014-11-06 17:37 ` Grant Likely
2014-11-06 18:01 ` Timur Tabi
2014-11-07 23:12 ` Timur Tabi
2014-11-06 19:28 ` Linus Walleij
2014-11-05 21:44 ` Olof Johansson
2014-11-06 6:07 ` Mika Westerberg
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