/*
* FUNCTION PURPOSE: Power up a module
*
* DESCRIPTION: Powers up the requested module and the associated power domain
* if required. No action is taken it the module is already
* powered up.
*
* Returns 0 on success, -1 if the module can't be powered up, or
* if there is a timeout waiting for the transition.
*/
int psc_enable_module(u32 mod_num)
{
u32 mdctl;
/* Set the bit to apply reset */
mdctl = DEVICE_REG32_R(DEVICE_PSC_BASE + PSC_REG_MDCTL(mod_num));
if ((mdctl & 0x3f) == PSC_REG_VAL_MDSTAT_STATE_ON)
return 0;
return psc_set_state(mod_num, PSC_REG_VAL_MDCTL_NEXT_ON);
}
/*
* FUNCTION PURPOSE: Power down a module
*
* DESCRIPTION: Powers down the requested module.
*
* Returns 0 on success, -1 on failure or timeout.
*/
int psc_disable_module(u32 mod_num)
{
u32 mdctl;
/* Set the bit to apply reset */
mdctl = DEVICE_REG32_R(DEVICE_PSC_BASE + PSC_REG_MDCTL(mod_num));
if ((mdctl & 0x3f) == 0)
return 0;
mdctl = PSC_REG_MDCTL_SET_LRSTZ(mdctl, 0);
DEVICE_REG32_W(DEVICE_PSC_BASE + PSC_REG_MDCTL(mod_num), mdctl);
return psc_set_state(mod_num, PSC_REG_VAL_MDCTL_NEXT_SWRSTDISABLE);
}
/**
* psc_disable_module() - Power down a module
* @mod_num: LPSC module number
*
* Return: 0 on success, -1 on failure or timeout.
*/
int psc_disable_module(u32 mod_num)
{
u32 mdctl;
/* Set the bit to apply reset */
mdctl = __raw_readl(KS2_PSC_BASE + PSC_REG_MDCTL(mod_num));
if ((mdctl & 0x3f) == 0)
return 0;
mdctl = PSC_REG_MDCTL_SET_LRSTZ(mdctl, 0);
__raw_writel(mdctl, KS2_PSC_BASE + PSC_REG_MDCTL(mod_num));
return psc_set_state(mod_num, PSC_REG_VAL_MDCTL_NEXT_SWRSTDISABLE);
}
