github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-25 15:41:52 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

soc/tegra: pmc: Use PMC context embedded in powergates

Browse Source 
The powergates exposed by the PMC have a pointer to the PMC context
embedded. Use that embedded reference instead of relying on a global
variable.

For the core power domain a new structure needs to be introduced to wrap
the generic PM domain and store the PMC context.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2025-02-03 14:51:18 +01:00
parent b2a3e82000
commit bb946b0e11
1 changed files with 24 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
drivers/soc/tegra/pmc.c
View File

@ -268,6 +268,17 @@ static const struct pmc_clk_init_data tegra_pmc_clks_data[] = {
},
};
struct tegra_pmc_core_pd {
struct generic_pm_domain genpd;
struct tegra_pmc *pmc;
};
static inline struct tegra_pmc_core_pd *
to_core_pd(struct generic_pm_domain *genpd)
{
return container_of(genpd, struct tegra_pmc_core_pd, genpd);
}
struct tegra_powergate {
struct generic_pm_domain genpd;
struct tegra_pmc *pmc;
@ -1387,6 +1398,8 @@ static int
tegra_pmc_core_pd_set_performance_state(struct generic_pm_domain *genpd,
unsigned int level)
{
struct tegra_pmc_core_pd *pd = to_core_pd(genpd);
struct tegra_pmc *pmc = pd->pmc;
struct dev_pm_opp *opp;
int err;
@ -1414,30 +1427,31 @@ tegra_pmc_core_pd_set_performance_state(struct generic_pm_domain *genpd,
static int tegra_pmc_core_pd_add(struct tegra_pmc *pmc, struct device_node *np)
{
struct generic_pm_domain *genpd;
const char *rname[] = { "core", NULL};
struct tegra_pmc_core_pd *pd;
int err;
genpd = devm_kzalloc(pmc->dev, sizeof(*genpd), GFP_KERNEL);
if (!genpd)
pd = devm_kzalloc(pmc->dev, sizeof(*pd), GFP_KERNEL);
if (!pd)
return -ENOMEM;
genpd->name = "core";
genpd->flags = GENPD_FLAG_NO_SYNC_STATE;
genpd->set_performance_state = tegra_pmc_core_pd_set_performance_state;
pd->genpd.name = "core";
pd->genpd.flags = GENPD_FLAG_NO_SYNC_STATE;
pd->genpd.set_performance_state = tegra_pmc_core_pd_set_performance_state;
pd->pmc = pmc;
err = devm_pm_opp_set_regulators(pmc->dev, rname);
if (err)
return dev_err_probe(pmc->dev, err,
"failed to set core OPP regulator\n");
err = pm_genpd_init(genpd, NULL, false);
err = pm_genpd_init(&pd->genpd, NULL, false);
if (err) {
dev_err(pmc->dev, "failed to init core genpd: %d\n", err);
return err;
}
err = of_genpd_add_provider_simple(np, genpd);
err = of_genpd_add_provider_simple(np, &pd->genpd);
if (err) {
dev_err(pmc->dev, "failed to add core genpd: %d\n", err);
goto remove_genpd;
@ -1446,7 +1460,7 @@ static int tegra_pmc_core_pd_add(struct tegra_pmc *pmc, struct device_node *np)
return 0;
remove_genpd:
pm_genpd_remove(genpd);
pm_genpd_remove(&pd->genpd);
return err;
}
@ -1509,7 +1523,7 @@ static void tegra_powergate_remove(struct generic_pm_domain *genpd)
kfree(pg->clks);
set_bit(pg->id, pmc->powergates_available);
set_bit(pg->id, pg->pmc->powergates_available);
kfree(pg);
}