diff options
| author | Varun Wadekar <vwadekar@nvidia.com> | 2017-12-27 18:10:12 -0800 |
|---|---|---|
| committer | Varun Wadekar <vwadekar@nvidia.com> | 2019-01-31 08:45:32 -0800 |
| commit | 0887026ec149e8801c2ac14725d5151db836f8a8 (patch) | |
| tree | 5f13e67c8561679920d286b24f9a9193aa11c39e /plat/nvidia | |
| parent | 28f45bb83c854be321397455cefb2048f7839ad0 (diff) | |
Tegra: default platform handler for the CPU_STANDBY state
This patch adds a default implementation for the platform specific
CPU standby power handler. Tegra SoCs can override this handler
with their own implementations.
Change-Id: I91e513842f194b1e2b1defa2d833bb4d9df5f06b
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Diffstat (limited to 'plat/nvidia')
| -rw-r--r-- | plat/nvidia/tegra/common/tegra_pm.c | 11 | ||||
| -rw-r--r-- | plat/nvidia/tegra/include/tegra_private.h | 1 |
2 files changed, 12 insertions, 0 deletions
diff --git a/plat/nvidia/tegra/common/tegra_pm.c b/plat/nvidia/tegra/common/tegra_pm.c index 28052727..fbc0f116 100644 --- a/plat/nvidia/tegra/common/tegra_pm.c +++ b/plat/nvidia/tegra/common/tegra_pm.c @@ -41,6 +41,7 @@ uint8_t tegra_fake_system_suspend; * provide typical implementations that will be overridden by a SoC. */ #pragma weak tegra_soc_pwr_domain_suspend_pwrdown_early +#pragma weak tegra_soc_cpu_standby #pragma weak tegra_soc_pwr_domain_suspend #pragma weak tegra_soc_pwr_domain_on #pragma weak tegra_soc_pwr_domain_off @@ -55,6 +56,12 @@ int32_t tegra_soc_pwr_domain_suspend_pwrdown_early(const psci_power_state_t *tar return PSCI_E_NOT_SUPPORTED; } +int32_t tegra_soc_cpu_standby(plat_local_state_t cpu_state) +{ + (void)cpu_state; + return PSCI_E_SUCCESS; +} + int32_t tegra_soc_pwr_domain_suspend(const psci_power_state_t *target_state) { (void)target_state; @@ -141,6 +148,10 @@ void tegra_cpu_standby(plat_local_state_t cpu_state) { (void)cpu_state; + /* Tegra SoC specific handler */ + if (tegra_soc_cpu_standby(cpu_state) != PSCI_E_SUCCESS) + ERROR("%s failed\n", __func__); + /* * Enter standby state * dsb is good practice before using wfi to enter low power states diff --git a/plat/nvidia/tegra/include/tegra_private.h b/plat/nvidia/tegra/include/tegra_private.h index 68b46242..40aeaf85 100644 --- a/plat/nvidia/tegra/include/tegra_private.h +++ b/plat/nvidia/tegra/include/tegra_private.h @@ -97,6 +97,7 @@ extern uint8_t tegra_fake_system_suspend; void tegra_pm_system_suspend_entry(void); void tegra_pm_system_suspend_exit(void); int32_t tegra_system_suspended(void); +int32_t tegra_soc_cpu_standby(plat_local_state_t cpu_state); int32_t tegra_soc_pwr_domain_suspend(const psci_power_state_t *target_state); int32_t tegra_soc_pwr_domain_on(u_register_t mpidr); int32_t tegra_soc_pwr_domain_off(const psci_power_state_t *target_state); |