linux-kernel - [PATCH 21/47] PM: schedule /sys/devices/.../power/state for removal

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Message-Id: <11592491512235-git-send-email-greg@kroah.com>
Date:	Mon, 25 Sep 2006 22:37:41 -0700
From:	Greg KH <greg@...ah.com>
To:	linux-kernel@...r.kernel.org
Cc:	Pavel Machek <pavel@...e.cz>,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [PATCH 21/47] PM: schedule /sys/devices/.../power/state for removal

From: Pavel Machek <pavel@...e.cz>

This lists the /sys/devices/.../power/state file, and its internal support,
as due for removal next year.

Signed-off-by: Pavel Machek <pavel@...e.cz>
Signed-off-by: David Brownell <dbrownell@...rs.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 Documentation/feature-removal-schedule.txt |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index a89a1b7..611acc3 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -6,6 +6,21 @@ be removed from this file.
 
 ---------------------------
 
+What:	/sys/devices/.../power/state
+	dev->power.power_state
+	dpm_runtime_{suspend,resume)()
+When:	July 2007
+Why:	Broken design for runtime control over driver power states, confusing
+	driver-internal runtime power management with:  mechanisms to support
+	system-wide sleep state transitions; event codes that distinguish
+	different phases of swsusp "sleep" transitions; and userspace policy
+	inputs.  This framework was never widely used, and most attempts to
+	use it were broken.  Drivers should instead be exposing domain-specific
+	interfaces either to kernel or to userspace.
+Who:	Pavel Machek <pavel@...e.cz>
+
+---------------------------
+
 What:	RAW driver (CONFIG_RAW_DRIVER)
 When:	December 2005
 Why:	declared obsolete since kernel 2.6.3
-- 
1.4.2.1

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