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OMAP: hwmod: allow omap_hwmod_late_init() caller to skip module idle in _setup()

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On kernels that don't use the omap_device_enable() calls to enable
devices, leave all on-chip devices enabled in hwmod _setup().
Otherwise, accesses to those devices are likely to fail, crashing the
system.  It's expected that kernels built without CONFIG_PM_RUNTIME
will be the primary use-case for this.  This functionality is
controlled by adding an extra parameter to omap_hwmod_late_init().

This patch is based on the patch "OMAP: hwmod: don't auto-disable
hwmod when !CONFIG_PM_RUNTIME" by Kevin Hilman
<khilman@deeprootsystems.com>.

Cc: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This commit is contained in:
Paul Walmsley 2010-07-26 16:34:30 -06:00
parent 848240223c
commit 97d60162f6
3 changed files with 36 additions and 15 deletions
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5
arch/arm/plat-omap/include/plat/omap_hwmod.h
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@ -482,8 +482,9 @@ int omap_hwmod_init(struct omap_hwmod **ohs);
int omap_hwmod_register(struct omap_hwmod *oh);
int omap_hwmod_unregister(struct omap_hwmod *oh);
struct omap_hwmod *omap_hwmod_lookup(const char *name);
int omap_hwmod_for_each(int (*fn)(struct omap_hwmod *oh));
int omap_hwmod_late_init(void);
int omap_hwmod_for_each(int (*fn)(struct omap_hwmod *oh, void *data),
void *data);
int omap_hwmod_late_init(u8 skip_setup_idle);
int omap_hwmod_enable(struct omap_hwmod *oh);
int _omap_hwmod_enable(struct omap_hwmod *oh);