From: Ryan Wanner <Ryan.Wanner@xxxxxxxxxxxxx>
Add config check that enables Backup mode for SAMA7D65 SoC.
Add SHDWC_SR read to clear the status bits once finished exiting low
power modes. This is only for SAMA7D65 SoCs.
Signed-off-by: Ryan Wanner <Ryan.Wanner@xxxxxxxxxxxxx>
---
arch/arm/mach-at91/pm.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 1eec68e92f8d8..55cab31ce1ecb 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -707,6 +707,9 @@ static int at91_pm_enter(suspend_state_t state)
static void at91_pm_end(void)
{
at91_pm_config_ws(soc_pm.data.mode, false);
+
+ if (IS_ENABLED(CONFIG_SOC_SAMA7D65))
+ readl(soc_pm.data.shdwc + 0x08);
}
@@ -1065,7 +1068,8 @@ static int __init at91_pm_backup_init(void)
int ret = -ENODEV, located = 0;
if (!IS_ENABLED(CONFIG_SOC_SAMA5D2) &&
- !IS_ENABLED(CONFIG_SOC_SAMA7G5))
+ !IS_ENABLED(CONFIG_SOC_SAMA7G5) &&
+ !IS_ENABLED(CONFIG_SOC_SAMA7D65))
return -EPERM;
if (!at91_is_pm_mode_active(AT91_PM_BACKUP))
--
2.43.0
