From: Paul Walmsley <paul@pwsan.com>
Date: Tue, 8 Dec 2009 23:34:15 +0000 (-0700)
Subject: OMAP3 hwmod: Add automatic OCP_SYSCONFIG AUTOIDLE handling
X-Git-Tag: v2.6.33-rc1~295^2~1^2~19
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=726072e5dd459e3831d1dd4308ba469ff3ded419;p=pandora-kernel.git

OMAP3 hwmod: Add automatic OCP_SYSCONFIG AUTOIDLE handling

This patch fills in the OCP_SYSCONFIG.AUTOIDLE handling in the OMAP
hwmod code.

After this patch, the hwmod code will set the module AUTOIDLE bit
(generally <module>.OCP_SYSCONFIG.AUTOIDLE) to 1 by default upon
enable.  If the hwmod flag HWMOD_NO_OCP_AUTOIDLE is set, AUTOIDLE will
be set to 0 upon enable.  Upon module disable, AUTOIDLE will be set to
1.

Enabling module autoidle should save some power.  The only reason to
not set the OCP_SYSCONFIG.AUTOIDLE bit is if there is a bug in the
module RTL, e.g., the MPUINTC block on OMAP3.

Comments from Kevin Hilman <khilman@deeprootsystems.com> inspired this patch,
and Kevin tested an earlier version of this patch.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
---

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