diff options
| author | Ulf Hansson <ulf.hansson@linaro.org> | 2025-07-01 13:47:11 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2025-07-09 13:29:06 +0200 |
| commit | 8efc9b195b5f19894e50990e81bbc6799c035b79 (patch) | |
| tree | 3ff15a5cdb2b4a337e9e771ebe1f1df004fc22ad | |
| parent | c8c196220ce5eba9b7d4aca37a7fd4bbb965d2ed (diff) | |
soc/tegra: pmc: Opt-out from genpd's common ->sync_state() support
Tegra implements its own specific ->sync_state() callback for the genpd
providers. Let's set the GENPD_FLAG_NO_SYNC_STATE to inform genpd about it.
Moreover, let's call of_genpd_sync_state() to make sure genpd tries to
power off unused PM domains.
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X
Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20250701114733.636510-10-ulf.hansson@linaro.org
| -rw-r--r-- | drivers/soc/tegra/pmc.c | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index e0d67bfe955c..d209e3435878 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -418,7 +418,6 @@ struct tegra_pmc_soc { * @irq: chip implementation for the IRQ domain * @clk_nb: pclk clock changes handler * @core_domain_state_synced: flag marking the core domain's state as synced - * @core_domain_registered: flag marking the core domain as registered * @wake_type_level_map: Bitmap indicating level type for non-dual edge wakes * @wake_type_dual_edge_map: Bitmap indicating if a wake is dual-edge or not * @wake_sw_status_map: Bitmap to hold raw status of wakes without mask @@ -462,7 +461,6 @@ struct tegra_pmc { struct notifier_block clk_nb; bool core_domain_state_synced; - bool core_domain_registered; unsigned long *wake_type_level_map; unsigned long *wake_type_dual_edge_map; @@ -1297,6 +1295,7 @@ static int tegra_powergate_add(struct tegra_pmc *pmc, struct device_node *np) pg->id = id; pg->genpd.name = np->name; + pg->genpd.flags = GENPD_FLAG_NO_SYNC_STATE; pg->genpd.power_off = tegra_genpd_power_off; pg->genpd.power_on = tegra_genpd_power_on; pg->pmc = pmc; @@ -1406,6 +1405,7 @@ static int tegra_pmc_core_pd_add(struct tegra_pmc *pmc, struct device_node *np) return -ENOMEM; genpd->name = "core"; + genpd->flags = GENPD_FLAG_NO_SYNC_STATE; genpd->set_performance_state = tegra_pmc_core_pd_set_performance_state; err = devm_pm_opp_set_regulators(pmc->dev, rname); @@ -1425,8 +1425,6 @@ 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: @@ -4263,8 +4261,25 @@ static const struct of_device_id tegra_pmc_match[] = { static void tegra_pmc_sync_state(struct device *dev) { + struct device_node *np, *child; int err; + np = of_get_child_by_name(dev->of_node, "powergates"); + if (!np) + return; + + for_each_child_of_node(np, child) + of_genpd_sync_state(child); + + of_node_put(np); + + np = of_get_child_by_name(dev->of_node, "core-domain"); + if (!np) + return; + + of_genpd_sync_state(np); + of_node_put(np); + /* * Newer device-trees have power domains, but we need to prepare all * device drivers with runtime PM and OPP support first, otherwise @@ -4278,9 +4293,6 @@ static void tegra_pmc_sync_state(struct device *dev) * 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 */ |