diff options
Diffstat (limited to 'arch/arm/mach-omap2/cm_common.c')
| -rw-r--r-- | arch/arm/mach-omap2/cm_common.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/cm_common.c b/arch/arm/mach-omap2/cm_common.c index dd19183..c6237df 100644 --- a/arch/arm/mach-omap2/cm_common.c +++ b/arch/arm/mach-omap2/cm_common.c @@ -98,6 +98,32 @@ int omap_cm_wait_module_ready(u8 part, s16 prcm_mod, u16 idlest_reg, } /** + * omap_cm_wait_module_idle - wait for a module to enter idle or standby + * @part: PRCM partition + * @prcm_mod: PRCM module offset + * @idlest_reg: CM_IDLESTx register + * @idlest_shift: shift of the bit in the CM_IDLEST* register to check + * + * Wait for the PRCM to indicate that the module identified by + * (@prcm_mod, @idlest_id, @idlest_shift) is no longer clocked. Return + * 0 upon success, -EBUSY if the module doesn't enable in time, or + * -EINVAL if no per-SoC wait_module_idle() function pointer has been + * registered or if the idlest register is unknown on the SoC. + */ +int omap_cm_wait_module_idle(u8 part, s16 prcm_mod, u16 idlest_reg, + u8 idlest_shift) +{ + if (!cm_ll_data->wait_module_idle) { + WARN_ONCE(1, "cm: %s: no low-level function defined\n", + __func__); + return -EINVAL; + } + + return cm_ll_data->wait_module_idle(part, prcm_mod, idlest_reg, + idlest_shift); +} + +/** * cm_register - register per-SoC low-level data with the CM * @cld: low-level per-SoC OMAP CM data & function pointers to register * |
