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OMAP: hwmod: add API for slave idlemode setting

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Some HW blocks have errata which requires specific slave idle mode
under certain conditions.

This patch adds an hwmod API to allow setting slave idlemode
ensuring that any SYSCONFIG register updates go through hwmod.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This commit is contained in:
Kevin Hilman
2010-01-26 20:13:03 -07:00
committed by Paul Walmsley
parent 9799aca203
commit 46273e6f37
2 changed files with 19 additions and 0 deletions
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17
arch/arm/mach-omap2/omap_hwmod.c
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@ -992,6 +992,23 @@ void omap_hwmod_writel(u32 v, struct omap_hwmod *oh, u16 reg_offs)
__raw_writel(v, oh->_rt_va + reg_offs);
}
int omap_hwmod_set_slave_idlemode(struct omap_hwmod *oh, u8 idlemode)
{
u32 v;
int retval = 0;
if (!oh)
return -EINVAL;
v = oh->_sysc_cache;
retval = _set_slave_idlemode(oh, idlemode, &v);
if (!retval)
_write_sysconfig(v, oh);
return retval;
}
/**
* omap_hwmod_register - register a struct omap_hwmod
* @oh: struct omap_hwmod *