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From: Mark Brown <broonie@kernel.org>
To: Octavian Purdila <octavian.purdila@intel.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Len Brown <lenb@kernel.org>,
	Matt Fleming <matt@codeblueprint.co.uk>,
	Wolfram Sang <wsa@the-dreams.de>,
	Joel Becker <jlbec@evilplan.org>, Christoph Hellwig <hch@lst.de>,
	"linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
	linux-efi@vger.kernel.org, linux-i2c <linux-i2c@vger.kernel.org>,
	linux-spi@vger.kernel.org, lkml <linux-kernel@vger.kernel.org>,
	Irina Tirdea <irina.tirdea@intel.com>
Subject: Re: [RFC PATCH 06/10] spi: add support for ACPI reconfigure notifications
Date: Fri, 1 Apr 2016 07:08:56 -0700	[thread overview]
Message-ID: <20160401140856.GW2350@sirena.org.uk> (raw)
In-Reply-To: <CAE1zotJbUGBOUF-4-XAx0DUkj55egOMXVn9FzjV3Fdj4MYxD0Q@mail.gmail.com>

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On Fri, Apr 01, 2016 at 01:54:28PM +0300, Octavian Purdila wrote:

> I probably don't fully understand your question, but I don't see a way
> of how we can create a new SPI device from generic ACPI code. For
> example, in acpi_spi_add_device() we need the spi_master node so that
> we can allocate the spi device.

Right, but the same applies to initial enumeration so we also have to
manually instantiate ACPI devices on startup.  Why do we need to do
that?

> The handling is identical because we don't have yet have a way to
> identify what where the new nodes added when a new ACPI table /
> overlay has been loaded, so we have to rescan the ACPI namespace under
> each controller.

That's not the point.  The point is that since the handling is identical
why are we handling it through exactly the same code?

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  reply	other threads:[~2016-04-01 14:08 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-31  9:36 [RFC PATCH 00/10] ACPI overlays Octavian Purdila
2016-03-31  9:36 ` [RFC PATCH 01/10] kernel: add TAINT_OVERLAY_ACPI_TABLE Octavian Purdila
2016-03-31  9:36 ` [RFC PATCH 02/10] acpi: install SSDT tables from initrd Octavian Purdila
2016-04-01  5:05   ` Zheng, Lv
2016-04-01  5:05     ` Zheng, Lv
2016-04-01 10:11     ` Octavian Purdila
     [not found]       ` <CAE1zotJ1fa4m-_FO3PUQK8_p0vHcfWD5TmuMdxOSHDjku421pA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-04-04 13:07         ` Octavian Purdila
2016-04-04 13:07           ` Octavian Purdila
2016-04-05  0:49           ` Zheng, Lv
2016-04-05  7:23             ` Octavian Purdila
2016-04-06  6:15               ` Zheng, Lv
2016-04-05  0:57         ` Zheng, Lv
2016-04-05  0:57           ` Zheng, Lv
2016-03-31  9:36 ` [RFC PATCH 03/10] acpi: add support for ACPI reconfiguration notifiers Octavian Purdila
2016-03-31  9:37 ` [RFC PATCH 04/10] acpi: fix enumeration (visited) flags for bus rescans Octavian Purdila
2016-03-31  9:37 ` [RFC PATCH 05/10] i2c: add support for ACPI reconfigure notifications Octavian Purdila
2016-03-31  9:37 ` [RFC PATCH 06/10] spi: " Octavian Purdila
     [not found]   ` <1459417026-6697-7-git-send-email-octavian.purdila-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-03-31 17:29     ` Mark Brown
2016-03-31 17:29       ` Mark Brown
2016-04-01 10:54       ` Octavian Purdila
2016-04-01 14:08         ` Mark Brown [this message]
2016-04-01 19:26           ` Rafael J. Wysocki
2016-04-02 16:24             ` Mark Brown
2016-04-04 10:25               ` Octavian Purdila
2016-04-04 16:03                 ` Mark Brown
2016-04-04 19:34                   ` Octavian Purdila
     [not found]                     ` <CAE1zot+ESGBEYeUbLTreKfkc-6B45uQq3PWhhRfBo1AWd-7Vxw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-04-04 21:18                       ` Rafael J. Wysocki
2016-04-04 21:18                         ` Rafael J. Wysocki
     [not found]                         ` <CAJZ5v0gV8N6zgVrwtRFaY98Wv1HsoKs+4=U-s_V29FSpCdFW3g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-04-05 11:49                           ` Octavian Purdila
2016-04-05 11:49                             ` Octavian Purdila
2016-04-05 18:32                             ` Mark Brown
     [not found]                               ` <20160405183255.GH1924-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2016-04-05 19:16                                 ` Octavian Purdila
2016-04-05 19:16                                   ` Octavian Purdila
     [not found]                                   ` <CAE1zotL7X+di4rHecRW_G-45wUPbbNb9jvn3C_zjD4XttZ4v3w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-04-05 21:20                                     ` Mark Brown
2016-04-05 21:20                                       ` Mark Brown
2016-04-05 18:24                       ` Mark Brown
2016-04-05 18:24                         ` Mark Brown
     [not found] ` <1459417026-6697-1-git-send-email-octavian.purdila-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-03-31  9:37   ` [RFC PATCH 07/10] efi: load SSTDs from EFI variables Octavian Purdila
2016-03-31  9:37     ` Octavian Purdila
2016-03-31  9:37 ` [RFC PATCH 08/10] configfs: fix CONFIGFS_BIN_ATTR_[RW]O definitions Octavian Purdila
2016-03-31  9:37 ` [RFC PATCH 09/10] acpi: add support for configfs Octavian Purdila
2016-03-31  9:37 ` [RFC PATCH 10/10] acpi: add support for loading SSDTs via configfs Octavian Purdila
     [not found]   ` <1459417026-6697-11-git-send-email-octavian.purdila-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-04-01  4:55     ` Zheng, Lv
2016-04-01  4:55       ` Zheng, Lv
2016-04-01  4:55       ` Zheng, Lv
     [not found]       ` <1AE640813FDE7649BE1B193DEA596E883BB66233-0J0gbvR4kThpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2016-04-01 10:01         ` Octavian Purdila
2016-04-01 10:01           ` Octavian Purdila
2016-04-05  3:11           ` Zheng, Lv
     [not found]             ` <1AE640813FDE7649BE1B193DEA596E883BB6677B-0J0gbvR4kThpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2016-04-05  8:21               ` Octavian Purdila
2016-04-05  8:21                 ` Octavian Purdila
2016-04-06  6:05                 ` Zheng, Lv
     [not found]                   ` <1AE640813FDE7649BE1B193DEA596E883BB66B8C-0J0gbvR4kThpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2016-04-06 18:46                     ` Octavian Purdila
2016-04-06 18:46                       ` Octavian Purdila
     [not found]                       ` <CAE1zotKa+t5cxznWfPyQ599k9ZB=akOuEDZusWcJgzux8wqp5A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-04-07  2:42                         ` Zheng, Lv
2016-04-07  2:42                           ` Zheng, Lv

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