diff options
Diffstat (limited to 'arch/arm/mach-omap2/omap_hwmod.c')
| -rw-r--r-- | arch/arm/mach-omap2/omap_hwmod.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 816aeb97ba2..a68a2cf1be3 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -1288,6 +1288,42 @@ static int _idle(struct omap_hwmod *oh) } /** + * omap_hwmod_set_ocp_autoidle - set the hwmod's OCP autoidle bit + * @oh: struct omap_hwmod * + * @autoidle: desired AUTOIDLE bitfield value (0 or 1) + * + * Sets the IP block's OCP autoidle bit in hardware, and updates our + * local copy. Intended to be used by drivers that require + * direct manipulation of the AUTOIDLE bits. + * Returns -EINVAL if @oh is null or is not in the ENABLED state, or passes + * along the return value from _set_module_autoidle(). + * + * Any users of this function should be scrutinized carefully. + */ +int omap_hwmod_set_ocp_autoidle(struct omap_hwmod *oh, u8 autoidle) +{ + u32 v; + int retval = 0; + unsigned long flags; + + if (!oh || oh->_state != _HWMOD_STATE_ENABLED) + return -EINVAL; + + spin_lock_irqsave(&oh->_lock, flags); + + v = oh->_sysc_cache; + + retval = _set_module_autoidle(oh, autoidle, &v); + + if (!retval) + _write_sysconfig(v, oh); + + spin_unlock_irqrestore(&oh->_lock, flags); + + return retval; +} + +/** * _shutdown - shutdown an omap_hwmod * @oh: struct omap_hwmod * * |