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Tegra: implement the early suspend handler 

This patch implements the early suspend handler for Tegra SoCs. This
handler is empty for now and the actual support for a particular platform
would be added later.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
This commit is contained in:
Varun Wadekar 2017-07-05 17:44:12 -07:00
parent 1862d6203c
commit cb95a19a61
1 changed files with 18 additions and 0 deletions
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18
plat/nvidia/tegra/common/tegra_pm.c
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@ -36,6 +36,7 @@ uint8_t tegra_fake_system_suspend;
* The following platform setup functions are weakly defined. They
* provide typical implementations that will be overridden by a SoC.
*/
#pragma weak tegra_soc_pwr_domain_suspend_pwrdown_early
#pragma weak tegra_soc_pwr_domain_suspend
#pragma weak tegra_soc_pwr_domain_on
#pragma weak tegra_soc_pwr_domain_off
@ -45,6 +46,11 @@ uint8_t tegra_fake_system_suspend;
#pragma weak tegra_soc_prepare_system_off
#pragma weak tegra_soc_get_target_pwr_state
int tegra_soc_pwr_domain_suspend_pwrdown_early(const psci_power_state_t *target_state)
{
return PSCI_E_NOT_SUPPORTED;
}
int tegra_soc_pwr_domain_suspend(const psci_power_state_t *target_state)
{
return PSCI_E_NOT_SUPPORTED;
@ -142,6 +148,17 @@ void tegra_pwr_domain_off(const psci_power_state_t *target_state)
tegra_soc_pwr_domain_off(target_state);
}
/*******************************************************************************
* Handler called when a power domain is about to be suspended. The
* target_state encodes the power state that each level should transition to.
* This handler is called with SMP and data cache enabled, when
* HW_ASSISTED_COHERENCY = 0
******************************************************************************/
void tegra_pwr_domain_suspend_pwrdown_early(const psci_power_state_t *target_state)
{
tegra_soc_pwr_domain_suspend_pwrdown_early(target_state);
}
/*******************************************************************************
* Handler called when a power domain is about to be suspended. The
* target_state encodes the power state that each level should transition to.
@ -315,6 +332,7 @@ static const plat_psci_ops_t tegra_plat_psci_ops = {
.cpu_standby = tegra_cpu_standby,
.pwr_domain_on = tegra_pwr_domain_on,
.pwr_domain_off = tegra_pwr_domain_off,
.pwr_domain_suspend_pwrdown_early = tegra_pwr_domain_suspend_pwrdown_early,
.pwr_domain_suspend = tegra_pwr_domain_suspend,
.pwr_domain_on_finish = tegra_pwr_domain_on_finish,
.pwr_domain_suspend_finish = tegra_pwr_domain_suspend_finish,