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From: Greg KH <gregkh@linuxfoundation.org>
To: Jean-Jacques Hiblot <jjhiblot@traphandler.com>
Cc: grant.likely@linaro.org, robh+dt@kernel.org,
	linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	gregory.clement@free-electrons.com,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] dt: platform driver: Fill the resources before probe and defer if needed
Date: Tue, 18 Feb 2014 12:22:05 -0800	[thread overview]
Message-ID: <20140218202205.GA13835@kroah.com> (raw)
In-Reply-To: <1392285429-9325-1-git-send-email-jjhiblot@traphandler.com>

On Thu, Feb 13, 2014 at 10:57:09AM +0100, Jean-Jacques Hiblot wrote:
> The goal of this patch is to allow drivers to be probed even if at the time of
> the DT parsing some of their ressources are not available yet.
> 
> In the current situation, the resource of a platform device are filled from the
> DT at the time the device is created (of_device_alloc()). The drawbackof this
> is that a device sitting close to the top of the DT (ahb for example) but
> depending on ressources that are initialized later (IRQ domain dynamically
> created for example)  will fail to probe because the ressources don't exist
> at this time.
> 
> This patch fills the resource structure only before the device is probed and
> will defer the probe if the resource are not available yet.
> 
> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@traphandler.com>
> Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
> ---
>  drivers/base/platform.c     |  6 ++++
>  drivers/of/platform.c       | 71 +++++++++++++++++++++++++++++----------------
>  include/linux/of_platform.h | 10 +++++++
>  3 files changed, 62 insertions(+), 25 deletions(-)

I need some others to ack this before I can take it...

  parent reply	other threads:[~2014-02-18 20:22 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-13  9:57 [PATCH] dt: platform driver: Fill the resources before probe and defer if needed Jean-Jacques Hiblot
2014-02-13 10:06 ` Jean-Jacques Hiblot
2014-02-18 20:22 ` Greg KH [this message]
2014-02-18 22:34   ` Grant Likely
2014-02-20 15:30 ` Grant Likely
2014-02-21 13:18   ` [PATCH v2] " Jean-Jacques Hiblot
     [not found]     ` <1392988720-20976-1-git-send-email-jjhiblot-dLKeG7h1OhBDOHtkgc7UlQ@public.gmane.org>
2014-02-21 15:37       ` Strashko, Grygorii
2014-02-21 16:22         ` Jean-Jacques Hiblot
2014-02-27 16:43           ` Jean-Jacques Hiblot
2014-03-08  7:32             ` Grant Likely
2014-02-27 15:01       ` Ludovic Desroches
2014-03-08  7:37       ` Grant Likely
     [not found]         ` <20140308073758.DA63FC408EC-WNowdnHR2B42iJbIjFUEsiwD8/FfD2ys@public.gmane.org>
2014-03-08 11:59           ` Russell King - ARM Linux
2014-03-17 11:07         ` Jean-Jacques Hiblot
     [not found]   ` < 1392988720-20976-1-git-send-email-jjhiblot@traphandler.com>
     [not found]     ` < 902E09E6452B0E43903E4F2D568737AB0B9D2959@DFRE01.ent.ti.com>
     [not found]       ` < CACh+v5MPTx6nwVj1s3krntJqQ6DMTQ2hQ93Hc+rRNAuFa9+qPw@mail.gmail.com>
     [not found]     ` <20140308073758 .DA63FC408EC@trevor.secretlab.ca>
     [not found]       ` < CACh+v5P=tcc-h_9r7Btwyu+jWjwH2ocmW4VCgDYqY7VMWsHuOA@mail.gmail.com>
     [not found]         ` <CACh+v5P=tcc-h_9r7Btwyu+jWjwH2ocmW4VCgDYqY7VMWsHuOA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-03-17 14:24           ` Grant Likely
2014-03-17 15:20             ` Jean-Jacques Hiblot
     [not found]         ` < 20140317142443.A2447C40A85@trevor.secretlab.ca>
     [not found]           ` < CACh+v5M+0+C2JJwLqcp6erWa81kt=j1HucHiE52ufj1SO9F75w@mail.gmail.com>
     [not found]             ` <CACh+v5M+0+C2JJwLqcp6erWa81kt=j1HucHiE52ufj1SO9F75w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-03-20 16:11               ` Grant Likely
     [not found]                 ` <20140320161118.B7075C4067A-WNowdnHR2B42iJbIjFUEsiwD8/FfD2ys@public.gmane.org>
2014-03-21 14:46                   ` [PATCH v3 0/2] " Jean-Jacques Hiblot
     [not found]                     ` <1395413185-29763-1-git-send-email-jjhiblot-dLKeG7h1OhBDOHtkgc7UlQ@public.gmane.org>
2014-03-21 14:46                       ` [PATCH v3 1/2] of: irq: Added of_find_irq_domain() to get the domain of an irq Jean-Jacques Hiblot
2014-03-21 14:46                     ` [PATCH v3 2/2] dt: platform driver: Fill the resources before probe and defer if needed Jean-Jacques Hiblot
2014-04-11 17:28                       ` Rob Herring
     [not found]                         ` <CAL_Jsq+aU+rs28gV=Gesb_-Dy6Ht7zuKrRA6_hmqp94Uun23Yg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-04-18 20:52                           ` Tony Lindgren
     [not found]                             ` <20140418205213.GA21823-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2014-04-18 21:39                               ` Rob Herring
     [not found]                                 ` <CAL_JsqJvVvo6R-qNXxur7wiZERKbi52xyKoWnmzJTfKS2iKK7A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-04-18 21:58                                   ` Tony Lindgren
     [not found]                                     ` <20140418215848.GD21823-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2014-04-18 23:03                                       ` Russell King - ARM Linux
     [not found]                                         ` <20140418230335.GI24070-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2014-04-18 23:24                                           ` Tony Lindgren
2014-04-21 13:47                                             ` Rob Herring
     [not found]                                               ` <CAL_JsqLvLTJwgsB-m0W72WxSUoTV4ubMdvM_a784J4k2eiK9AQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-04-21 15:54                                                 ` Tony Lindgren
     [not found]                                                   ` <20140421155424.GD23945-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2014-04-21 19:01                                                     ` Rob Herring
     [not found]                                                       ` <53556AF1.2030608-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-04-21 20:25                                                         ` Tony Lindgren
     [not found]                                                           ` <20140421202546.GA26554-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2014-04-22  3:05                                                             ` Tony Lindgren
2014-04-22  4:57                                                               ` Tony Lindgren
     [not found]                                                                 ` <20140422045730.GC26554-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2014-04-23 22:03                                                                   ` Rob Herring
2014-04-23 17:38                                                         ` Russell King - ARM Linux
2014-04-23 15:02                                               ` Grant Likely

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