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authorPaul Walmsley <paul@pwsan.com>2011-03-10 03:50:07 -0700
committerPaul Walmsley <paul@pwsan.com>2011-03-10 03:50:07 -0700
commit43b01643355672a266b95c4719f47cd1abac4680 (patch)
treebaf1a94d96b47e21a12e7309c9110c8656631f06 /arch/arm/plat-omap/include/plat/omap_hwmod.h
parentdd9c1549edef02290edced639f67b54a25abbe0e (diff)
downloadlinux-43b01643355672a266b95c4719f47cd1abac4680.tar.gz
OMAP2+: hwmod: allow board files to prevent devices from being reset upon init
Some boards can't tolerate IP blocks being reset when they are initialized.
Michael Büsch cites a case with the Nokia N810:

    http://www.spinics.net/lists/linux-omap/msg47277.html

To allow such boards to continue working normally, allow board file
maintainers to mark IP blocks to prevent them from being reset upon
init.  This is done via a hwmod function, omap_hwmod_no_setup_reset().

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Michael Buesch <mb@bu3sch.de>
Diffstat (limited to 'arch/arm/plat-omap/include/plat/omap_hwmod.h')
-rw-r--r--arch/arm/plat-omap/include/plat/omap_hwmod.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/include/plat/omap_hwmod.h b/arch/arm/plat-omap/include/plat/omap_hwmod.h
index 1eee85a8abb3..bba234337d00 100644
--- a/arch/arm/plat-omap/include/plat/omap_hwmod.h
+++ b/arch/arm/plat-omap/include/plat/omap_hwmod.h
@@ -589,6 +589,8 @@ int omap_hwmod_for_each_by_class(const char *classname,
 int omap_hwmod_set_postsetup_state(struct omap_hwmod *oh, u8 state);
 u32 omap_hwmod_get_context_loss_count(struct omap_hwmod *oh);
 
+int omap_hwmod_no_setup_reset(struct omap_hwmod *oh);
+
 /*
  * Chip variant-specific hwmod init routines - XXX should be converted
  * to use initcalls once the initial boot ordering is straightened out