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From: Stewart Smith <stewart@linux.vnet.ibm.com>
To: Jacek Anaszewski <j.anaszewski81@gmail.com>
Cc: linux-leds@vger.kernel.org, cooloney@gmail.com,
	rpurdie@rpsys.net, linuxppc-dev@lists.ozlabs.org,
	khandual@linux.vnet.ibm.com
Subject: Re: [PATCH v2 2/2] leds/powernv: Add driver for PowerNV platform
Date: Tue, 28 Apr 2015 16:59:18 +1000	[thread overview]
Message-ID: <m3zj5slovt.fsf@oc8180480414.ibm.com> (raw)
In-Reply-To: <20150424121629.69a159b3@ja.home>

Jacek Anaszewski <j.anaszewski81@gmail.com> writes:
> Is the DT node we are discussing used by some other drivers than the
> LED class driver? Or is it required in this form by other components of
> your platform?

OS kernels are the chief consumers, Linux being the overwhelmingly major
one here.

But this is what firmware currently produces.

Changing the DT representation at this stage is perhaps *possible*
without creating a bunch of pain (I'd have to audit a bunch of things to
see if we have GA shipping systems with this functionality for instance,
and then evaluate the impact to partners and our various labs) which is
a lot of work I don't particularly want to do and is well below urgent
item 248 on my TODO list, especially for what seems to be largely a
cosmetic suggestion?

That being said, more and better review of things we're putting in the
device tree in firmware is probably a good thing. After all, once we
release we do kind of have to live with it essentially forever. If
people are able to aid in that kind of code review, I'd be most welcome
to hear it.

WARNING: multiple messages have this Message-ID (diff)
From: Stewart Smith <stewart@linux.vnet.ibm.com>
To: Jacek Anaszewski <j.anaszewski81@gmail.com>
Cc: linuxppc-dev@lists.ozlabs.org, cooloney@gmail.com,
	rpurdie@rpsys.net, linux-leds@vger.kernel.org,
	khandual@linux.vnet.ibm.com
Subject: Re: [PATCH v2 2/2] leds/powernv: Add driver for PowerNV platform
Date: Tue, 28 Apr 2015 16:59:18 +1000	[thread overview]
Message-ID: <m3zj5slovt.fsf@oc8180480414.ibm.com> (raw)
In-Reply-To: <20150424121629.69a159b3@ja.home>

Jacek Anaszewski <j.anaszewski81@gmail.com> writes:
> Is the DT node we are discussing used by some other drivers than the
> LED class driver? Or is it required in this form by other components of
> your platform?

OS kernels are the chief consumers, Linux being the overwhelmingly major
one here.

But this is what firmware currently produces.

Changing the DT representation at this stage is perhaps *possible*
without creating a bunch of pain (I'd have to audit a bunch of things to
see if we have GA shipping systems with this functionality for instance,
and then evaluate the impact to partners and our various labs) which is
a lot of work I don't particularly want to do and is well below urgent
item 248 on my TODO list, especially for what seems to be largely a
cosmetic suggestion?

That being said, more and better review of things we're putting in the
device tree in firmware is probably a good thing. After all, once we
release we do kind of have to live with it essentially forever. If
people are able to aid in that kind of code review, I'd be most welcome
to hear it.

  reply	other threads:[~2015-04-28  6:59 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-22 21:45 [PATCH v2 2/2] leds/powernv: Add driver for PowerNV platform Jacek Anaszewski
2015-04-22 21:45 ` Jacek Anaszewski
2015-04-23  5:25 ` Vasant Hegde
2015-04-23  5:25   ` Vasant Hegde
2015-04-23 14:13   ` Jacek Anaszewski
2015-04-23 14:13     ` Jacek Anaszewski
2015-04-24  4:18     ` Stewart Smith
2015-04-24  4:18       ` Stewart Smith
2015-04-24 10:16       ` Jacek Anaszewski
2015-04-24 10:16         ` Jacek Anaszewski
2015-04-28  6:59         ` Stewart Smith [this message]
2015-04-28  6:59           ` Stewart Smith
2015-04-28  9:10           ` Jacek Anaszewski
2015-04-28  9:10             ` Jacek Anaszewski
2015-04-24  5:30     ` Vasant Hegde
2015-04-24  5:30       ` Vasant Hegde
2015-04-24 10:15       ` Jacek Anaszewski
2015-04-24 10:15         ` Jacek Anaszewski
2015-04-26 22:08         ` Benjamin Herrenschmidt
2015-04-26 22:08           ` Benjamin Herrenschmidt
2015-04-27 11:15         ` Jacek Anaszewski
2015-04-27 11:15           ` Jacek Anaszewski
2015-04-26 22:07     ` Benjamin Herrenschmidt
2015-04-26 22:07       ` Benjamin Herrenschmidt
2015-04-27  7:24       ` Jacek Anaszewski
2015-04-27  9:53         ` Benjamin Herrenschmidt
2015-04-27 11:15           ` Jacek Anaszewski
2015-04-27 13:47             ` Vasant Hegde
2015-04-28 11:06               ` Vasant Hegde
  -- strict thread matches above, loose matches on Subject: below --
2015-03-20 11:02 [PATCH v2 0/2] LED interface " Vasant Hegde
2015-03-20 11:04 ` [PATCH v2 2/2] leds/powernv: Add driver " Vasant Hegde
2015-03-20 11:04   ` Vasant Hegde
2015-03-25  5:21   ` Benjamin Herrenschmidt
2015-03-25  5:21     ` Benjamin Herrenschmidt
2015-04-14  5:40     ` Vasant Hegde
2015-04-14  5:40       ` Vasant Hegde
2015-04-14 15:20   ` Jacek Anaszewski
2015-04-14 15:20     ` Jacek Anaszewski
2015-04-15  6:26     ` Vasant Hegde
2015-04-15  6:26       ` Vasant Hegde
2015-04-15  8:42       ` Jacek Anaszewski
2015-04-15 10:15         ` Vasant Hegde
2015-04-15 10:15           ` Vasant Hegde
2015-04-15 13:12           ` Jacek Anaszewski
2015-04-16  6:47             ` Jacek Anaszewski
2015-04-16  6:52             ` Vasant Hegde
2015-04-16  6:52               ` Vasant Hegde
2015-04-16  8:51               ` Jacek Anaszewski
2015-04-16  8:51                 ` Jacek Anaszewski
2015-04-16 10:26                 ` Vasant Hegde
2015-04-16 10:26                   ` Vasant Hegde
2015-04-16 11:34                   ` Jacek Anaszewski
2015-04-16 11:34                     ` Jacek Anaszewski
2015-04-20  7:29                     ` Jacek Anaszewski
2015-04-20  7:29                       ` Jacek Anaszewski
2015-04-20 11:45           ` Jacek Anaszewski
2015-04-20 11:45             ` Jacek Anaszewski
2015-04-20 12:34             ` Vasant Hegde
2015-04-20 15:20               ` Jacek Anaszewski
2015-04-20 15:53                 ` Vasant Hegde
2015-04-15 18:50     ` Stewart Smith
2015-04-15 18:50       ` Stewart Smith
2015-04-16  5:07       ` Vasant Hegde
2015-04-16  5:07         ` Vasant Hegde
2015-04-21 23:03         ` Stewart Smith
2015-04-21 23:03           ` Stewart Smith

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