From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
To: Thierry Reding
<thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>
Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Sascha Hauer <s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
Matthias Kaehlcke
<matthias-RprLehDfhQ3k1uMJSBkQmQ@public.gmane.org>,
Kurt Van Dijck <kurt.van.dijck-/BeEPy95v10@public.gmane.org>,
Rob Herring <rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>,
Grant Likely
<grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>,
Colin Cross <ccross-z5hGa2qSFaRBDgjK7y7TUQ@public.gmane.org>,
Olof Johansson <olof-nZhT3qVonbNeoWH0uzbU5w@public.gmane.org>,
Richard Purdie <rpurdie-Fm38FmjxZ/leoWH0uzbU5w@public.gmane.org>,
Mark Brown
<broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>,
Mitch Bradley <wmb-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org>,
Mike Frysinger <vapier-aBrp7R+bbdUdnm+yROfE0A@public.gmane.org>,
Eric Miao <eric.y.miao-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Lars-Peter Clausen <lars-Qo5EllUWu/uELgA04lAiVw@public.gmane.org>,
Ryan Mallon <rmallon-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH v3 02/10] pwm: Allow chips to support multiple PWMs.
Date: Thu, 23 Feb 2012 14:07:12 +0000 [thread overview]
Message-ID: <201202231407.12981.arnd@arndb.de> (raw)
In-Reply-To: <20120223081235.GC8621-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
On Thursday 23 February 2012, Thierry Reding wrote:
> > Is this only used for the device tree functions? If so, I would recommend
> > making it less generic and always search for a device node.
>
> It is currently only used to look up a struct pwm_chip for a given struct
> device_node, yes. But I can see other uses for this. For instance this could
> be useful if we ever want to provide an alternative way of requesting a PWM
> on a per-chip basis.
Nah, just keep it simple for now. If we need it later, we can still
add something like this back, but for now it's just a source of
confusion and possible bugs.
> I was again basically looking at gpiolib for inspiration (maybe I should stop
> doing that :-). Maybe gpiolib should be reworked to use seq_file's iterator
> interface as well? Just in case anybody else turns to gpiolib for
> inspiration.
Good idea. Would you be able to send a patch for that, too? I would guess
converting both at the same time would be easier for you than splitting
the work between two people.
ARnd
WARNING: multiple messages have this Message-ID (diff)
From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 02/10] pwm: Allow chips to support multiple PWMs.
Date: Thu, 23 Feb 2012 14:07:12 +0000 [thread overview]
Message-ID: <201202231407.12981.arnd@arndb.de> (raw)
In-Reply-To: <20120223081235.GC8621@avionic-0098.mockup.avionic-design.de>
On Thursday 23 February 2012, Thierry Reding wrote:
> > Is this only used for the device tree functions? If so, I would recommend
> > making it less generic and always search for a device node.
>
> It is currently only used to look up a struct pwm_chip for a given struct
> device_node, yes. But I can see other uses for this. For instance this could
> be useful if we ever want to provide an alternative way of requesting a PWM
> on a per-chip basis.
Nah, just keep it simple for now. If we need it later, we can still
add something like this back, but for now it's just a source of
confusion and possible bugs.
> I was again basically looking at gpiolib for inspiration (maybe I should stop
> doing that :-). Maybe gpiolib should be reworked to use seq_file's iterator
> interface as well? Just in case anybody else turns to gpiolib for
> inspiration.
Good idea. Would you be able to send a patch for that, too? I would guess
converting both at the same time would be easier for you than splitting
the work between two people.
ARnd
next prev parent reply other threads:[~2012-02-23 14:07 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-22 15:17 [PATCH v3 00/10] Add PWM framework and device tree support Thierry Reding
2012-02-22 15:17 ` Thierry Reding
2012-02-22 15:17 ` [PATCH v3 07/10] arm/tegra: Add PWFM controller device tree probing Thierry Reding
2012-02-22 15:17 ` Thierry Reding
[not found] ` <1329923841-32017-8-git-send-email-thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>
2012-02-28 21:20 ` Stephen Warren
2012-02-28 21:20 ` Stephen Warren
[not found] ` <74CDBE0F657A3D45AFBB94109FB122FF17BDDF1E67-C7FfzLzN0UxDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-03-03 22:54 ` Thierry Reding
2012-03-03 22:54 ` Thierry Reding
[not found] ` <20120303225404.GC6661-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-03-04 20:39 ` Arnd Bergmann
2012-03-04 20:39 ` Arnd Bergmann
2012-03-05 17:51 ` Stephen Warren
2012-03-05 17:51 ` Stephen Warren
[not found] ` <74CDBE0F657A3D45AFBB94109FB122FF17BE861C46-C7FfzLzN0UxDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-03-05 18:15 ` Thierry Reding
2012-03-05 18:15 ` Thierry Reding
[not found] ` <20120305181555.GA22459-RM9K5IK7kjIyiCvfTdI0JKcOhU4Rzj621B7CTYaBSLdn68oJJulU0Q@public.gmane.org>
2012-03-05 18:39 ` Stephen Warren
2012-03-05 18:39 ` Stephen Warren
[not found] ` <1329923841-32017-1-git-send-email-thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>
2012-02-22 15:17 ` [PATCH v3 01/10] PWM: add pwm framework support Thierry Reding
2012-02-22 15:17 ` Thierry Reding
2012-02-22 15:17 ` [PATCH v3 02/10] pwm: Allow chips to support multiple PWMs Thierry Reding
2012-02-22 15:17 ` Thierry Reding
[not found] ` <1329923841-32017-3-git-send-email-thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>
2012-02-22 16:34 ` Arnd Bergmann
2012-02-22 16:34 ` Arnd Bergmann
[not found] ` <201202221634.45159.arnd-r2nGTMty4D4@public.gmane.org>
2012-02-23 8:12 ` Thierry Reding
2012-02-23 8:12 ` Thierry Reding
[not found] ` <20120223081235.GC8621-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-02-23 14:07 ` Arnd Bergmann [this message]
2012-02-23 14:07 ` Arnd Bergmann
[not found] ` <201202231407.12981.arnd-r2nGTMty4D4@public.gmane.org>
2012-02-23 16:04 ` Thierry Reding
2012-02-23 16:04 ` Thierry Reding
[not found] ` <20120223160420.GA9899-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-03-03 19:32 ` Thierry Reding
2012-03-03 19:32 ` Thierry Reding
[not found] ` <20120303193249.GA22021-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-03-06 15:38 ` Arnd Bergmann
2012-03-06 15:38 ` Arnd Bergmann
[not found] ` <201203061538.11709.arnd-r2nGTMty4D4@public.gmane.org>
2012-03-06 19:17 ` Thierry Reding
2012-03-06 19:17 ` Thierry Reding
2012-02-22 15:17 ` [PATCH v3 03/10] of: Add PWM support Thierry Reding
2012-02-22 15:17 ` Thierry Reding
[not found] ` <1329923841-32017-4-git-send-email-thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>
2012-02-22 16:15 ` Arnd Bergmann
2012-02-22 16:15 ` Arnd Bergmann
[not found] ` <201202221615.11605.arnd-r2nGTMty4D4@public.gmane.org>
2012-02-23 7:55 ` Thierry Reding
2012-02-23 7:55 ` Thierry Reding
[not found] ` <20120223075537.GB8621-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-02-23 14:03 ` Arnd Bergmann
2012-02-23 14:03 ` Arnd Bergmann
[not found] ` <201202231403.01614.arnd-r2nGTMty4D4@public.gmane.org>
2012-02-24 6:47 ` Thierry Reding
2012-02-24 6:47 ` Thierry Reding
[not found] ` <20120224064749.GB18786-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-02-24 16:58 ` Arnd Bergmann
2012-02-24 16:58 ` Arnd Bergmann
[not found] ` <201202241658.32062.arnd-r2nGTMty4D4@public.gmane.org>
2012-02-25 12:33 ` Sascha Hauer
2012-02-25 12:33 ` Sascha Hauer
[not found] ` <20120225123357.GU3852-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2012-02-25 23:08 ` Ryan Mallon
2012-02-25 23:08 ` Ryan Mallon
2012-02-22 15:17 ` [PATCH v3 04/10] arm/tegra: Fix PWM clock programming Thierry Reding
2012-02-22 15:17 ` Thierry Reding
[not found] ` <1329923841-32017-5-git-send-email-thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>
2012-02-28 21:01 ` Stephen Warren
2012-02-28 21:01 ` Stephen Warren
[not found] ` <74CDBE0F657A3D45AFBB94109FB122FF17BDDF1E52-C7FfzLzN0UxDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-03-03 22:47 ` Thierry Reding
2012-03-03 22:47 ` Thierry Reding
[not found] ` <20120303224751.GB6661-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-03-05 17:33 ` Stephen Warren
2012-03-05 17:33 ` Stephen Warren
2012-02-22 15:17 ` [PATCH v3 05/10] arm/tegra: Provide clock for only one PWM controller Thierry Reding
2012-02-22 15:17 ` Thierry Reding
2012-02-22 15:17 ` [PATCH v3 06/10] pwm: Add NVIDIA Tegra SoC support Thierry Reding
2012-02-22 15:17 ` Thierry Reding
[not found] ` <1329923841-32017-7-git-send-email-thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>
2012-02-23 1:47 ` Ryan Mallon
2012-02-23 1:47 ` Ryan Mallon
[not found] ` <4F459A94.4030104-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-02-23 8:14 ` Thierry Reding
2012-02-23 8:14 ` Thierry Reding
[not found] ` <20120223081459.GD8621-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-02-23 9:25 ` Ryan Mallon
2012-02-23 9:25 ` Ryan Mallon
[not found] ` <4F460616.3080400-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-02-24 6:48 ` Thierry Reding
2012-02-24 6:48 ` Thierry Reding
2012-02-28 21:14 ` Stephen Warren
2012-02-28 21:14 ` Stephen Warren
[not found] ` <74CDBE0F657A3D45AFBB94109FB122FF17BDDF1E63-C7FfzLzN0UxDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-03-03 22:42 ` Thierry Reding
2012-03-03 22:42 ` Thierry Reding
[not found] ` <20120303224212.GA6661-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-03-05 3:39 ` Olof Johansson
2012-03-05 3:39 ` Olof Johansson
[not found] ` <20120305033935.GA32675-O5ziIzlqnXUVNXGz7ipsyg@public.gmane.org>
2012-03-05 7:00 ` Thierry Reding
2012-03-05 7:00 ` Thierry Reding
2012-02-22 15:17 ` [PATCH v3 08/10] pwm: Add Blackfin support Thierry Reding
2012-02-22 15:17 ` Thierry Reding
2012-02-22 15:17 ` [PATCH v3 09/10] pwm: Add PXA support Thierry Reding
2012-02-22 15:17 ` Thierry Reding
[not found] ` <1329923841-32017-10-git-send-email-thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>
2012-02-22 15:40 ` Arnd Bergmann
2012-02-22 15:40 ` Arnd Bergmann
[not found] ` <201202221540.16897.arnd-r2nGTMty4D4@public.gmane.org>
2012-02-23 6:10 ` Thierry Reding
2012-02-23 6:10 ` Thierry Reding
2012-02-22 15:17 ` [PATCH v3 10/10] pwm-backlight: Add rudimentary device tree support Thierry Reding
2012-02-22 15:17 ` Thierry Reding
2012-02-22 16:02 ` [PATCH v3 00/10] Add PWM framework and " Arnd Bergmann
2012-02-22 16:02 ` Arnd Bergmann
[not found] ` <201202221602.09116.arnd-r2nGTMty4D4@public.gmane.org>
2012-02-23 7:29 ` Thierry Reding
2012-02-23 7:29 ` Thierry Reding
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