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-rw-r--r--drivers/soc/tegra/pmc.c30
1 files changed, 21 insertions, 9 deletions
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index 2ccbdfe751db..ecc1ec0a4ada 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -792,16 +792,19 @@ error:
static void tegra_powergate_add(struct tegra_pmc *pmc, struct device_node *np)
{
struct tegra_powergate *pg;
+ int id, err;
bool off;
- int id;
pg = kzalloc(sizeof(*pg), GFP_KERNEL);
if (!pg)
- goto error;
+ return;
id = tegra_powergate_lookup(pmc, np->name);
- if (id < 0)
+ if (id < 0) {
+ dev_err(pmc->dev, "powergate lookup failed for %s: %d\n",
+ np->name, id);
goto free_mem;
+ }
/*
* Clear the bit for this powergate so it cannot be managed
@@ -817,16 +820,28 @@ static void tegra_powergate_add(struct tegra_pmc *pmc, struct device_node *np)
off = !tegra_powergate_is_powered(pg->id);
- if (tegra_powergate_of_get_clks(pg, np))
+ err = tegra_powergate_of_get_clks(pg, np);
+ if (err < 0) {
+ dev_err(pmc->dev, "failed to get clocks for %s: %d\n",
+ np->name, err);
goto set_available;
+ }
- if (tegra_powergate_of_get_resets(pg, np, off))
+ err = tegra_powergate_of_get_resets(pg, np, off);
+ if (err < 0) {
+ dev_err(pmc->dev, "failed to get resets for %s: %d\n",
+ np->name, err);
goto remove_clks;
+ }
pm_genpd_init(&pg->genpd, NULL, off);
- if (of_genpd_add_provider_simple(np, &pg->genpd))
+ err = of_genpd_add_provider_simple(np, &pg->genpd);
+ if (err < 0) {
+ dev_err(pmc->dev, "failed to add genpd provider for %s: %d\n",
+ np->name, err);
goto remove_resets;
+ }
dev_dbg(pmc->dev, "added power domain %s\n", pg->genpd.name);
@@ -849,9 +864,6 @@ set_available:
free_mem:
kfree(pg);
-
-error:
- dev_err(pmc->dev, "failed to create power domain for %s\n", np->name);
}
static void tegra_powergate_init(struct tegra_pmc *pmc)