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intel_adsp: power: SoC restores the clock

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The SoC restores the clock only when leaving soft-off only.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
This commit is contained in:
Flavio Ceolin 2024-04-30 15:50:40 -07:00 • committed by Carles Cufí
commit 5ca3bc92c8
4 changed files with 16 additions and 8 deletions
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10
drivers/timer/intel_adsp_timer.c
View file

@ -212,7 +212,6 @@ void smp_timer_init(void)
{
}
/* Runs on core 0 only */
static int sys_clock_driver_init(void)
{
uint64_t curr = count();
@ -224,14 +223,11 @@ static int sys_clock_driver_init(void)
return 0;
}
#ifdef CONFIG_PM
void sys_clock_idle_exit(void)
/* Runs on core 0 only */
void intel_adsp_clock_soft_off_exit(void)
{
sys_clock_driver_init();
(void)sys_clock_driver_init();
}
#endif
SYS_INIT(sys_clock_driver_init, PRE_KERNEL_2,
CONFIG_SYSTEM_CLOCK_INIT_PRIORITY);

6
soc/intel/intel_adsp/ace/include/ace15_mtpm/adsp_power.h
View file

@ -88,6 +88,12 @@ static ALWAYS_INLINE bool soc_cpu_is_powered(int cpu_num)
return (ACE_PWRSTS->dsphpxpgs & BIT(cpu_num)) == BIT(cpu_num);
}
/**
* @brief Restore timer after leaving soft-off.
*
*/
void intel_adsp_clock_soft_off_exit(void);
/**
* @brief Retrieve node identifier for Intel ADSP HOST power domain.
*/

6
soc/intel/intel_adsp/ace/include/ace20_lnl/adsp_power.h
View file

@ -89,6 +89,12 @@ static ALWAYS_INLINE bool soc_cpu_is_powered(int cpu_num)
return (ACE_PWRSTS->dsphpxpgs & BIT(cpu_num)) == BIT(cpu_num);
}
/**
* @brief Restore timer after leaving soft-off.
*
*/
void intel_adsp_clock_soft_off_exit(void);
/**
* @brief Retrieve node identifier for Intel ADSP HOST power domain.
*/

2
soc/intel/intel_adsp/ace/power.c
View file

@ -388,7 +388,7 @@ void pm_state_exit_post_ops(enum pm_state state, uint8_t substate_id)
imr_layout->imr_state.header.adsp_imr_magic = 0;
imr_layout->imr_state.header.imr_restore_vector = NULL;
imr_layout->imr_state.header.imr_ram_storage = NULL;
sys_clock_idle_exit();
intel_adsp_clock_soft_off_exit();
mem_window_idle_exit();
soc_mp_on_d3_exit();
}