Older device-trees don't have core domain node. In this case we shouldn't
mark the domain as synced, allowing to begin core voltage scaling.
Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>
---
drivers/soc/tegra/pmc.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index d8eee285fd58..d317532130c3 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -431,6 +431,7 @@ struct tegra_pmc {
struct notifier_block clk_nb;
bool core_domain_state_synced;
+ bool core_domain_registered;
};
static struct tegra_pmc *pmc = &(struct tegra_pmc) {
@@ -1382,6 +1383,8 @@ static int tegra_pmc_core_pd_add(struct tegra_pmc *pmc, struct device_node *np)
goto remove_genpd;
}
+ pmc->core_domain_registered = true;
+
return 0;
remove_genpd:
@@ -3798,6 +3801,14 @@ static void tegra_pmc_sync_state(struct device *dev)
{
int err;
+ /*
+ * Older device-trees don't have core PD, and thus, there are
+ * no dependencies that will block the state syncing. We shouldn't
+ * mark the domain as synced in this case.
+ */
+ if (!pmc->core_domain_registered)
+ return;
+
pmc->core_domain_state_synced = true;
/* this is a no-op if core regulator isn't used */
--
2.30.2
