[PATCH 24/31] memory: tegra20: convert to use devm_pm_opp_* API

Yangtao Li
2021-01-01T17:01:35Z

Use devm_pm_opp_* API to simplify code.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
---
drivers/memory/tegra/tegra20-emc.c | 29 +++++++++--------------------
1 file changed, 9 insertions(+), 20 deletions(-)

diff --git a/drivers/memory/tegra/tegra20-emc.c b/drivers/memory/tegra/tegra20-emc.c
index 686aaf477d8a..223d9d97eb8f 100644
--- a/drivers/memory/tegra/tegra20-emc.c
+++ b/drivers/memory/tegra/tegra20-emc.c
@@ -911,31 +911,31 @@ static int tegra_emc_interconnect_init(struct tegra_emc *emc)
static int tegra_emc_opp_table_init(struct tegra_emc *emc)
{
u32 hw_version = BIT(tegra_sku_info.soc_process_id);
- struct opp_table *clk_opp_table, *hw_opp_table;
+ struct opp_table *opp_table;
int err;

- clk_opp_table = dev_pm_opp_set_clkname(emc->dev, NULL);
- err = PTR_ERR_OR_ZERO(clk_opp_table);
+ opp_table = devm_pm_opp_set_clkname(emc->dev, NULL);
+ err = PTR_ERR_OR_ZERO(opp_table);
if (err) {
dev_err(emc->dev, "failed to set OPP clk: %d\n", err);
return err;
}

- hw_opp_table = dev_pm_opp_set_supported_hw(emc->dev, &hw_version, 1);
- err = PTR_ERR_OR_ZERO(hw_opp_table);
+ opp_table = devm_pm_opp_set_supported_hw(emc->dev, &hw_version, 1);
+ err = PTR_ERR_OR_ZERO(opp_table);
if (err) {
dev_err(emc->dev, "failed to set OPP supported HW: %d\n", err);
- goto put_clk_table;
+ return err;
}

- err = dev_pm_opp_of_add_table(emc->dev);
+ err = devm_pm_opp_of_add_table(emc->dev);
if (err) {
if (err == -ENODEV)
dev_err(emc->dev, "OPP table not found, please update your device tree\n");
else
dev_err(emc->dev, "failed to add OPP table: %d\n", err);

- goto put_hw_table;
+ return err;
}

dev_info(emc->dev, "OPP HW ver. 0x%x, current clock rate %lu MHz\n",
@@ -943,19 +943,8 @@ static int tegra_emc_opp_table_init(struct tegra_emc *emc)

/* first dummy rate-set initializes voltage state */
err = dev_pm_opp_set_rate(emc->dev, clk_get_rate(emc->clk));
- if (err) {
+ if (err)
dev_err(emc->dev, "failed to initialize OPP clock: %d\n", err);
- goto remove_table;
- }
-
- return 0;
-
-remove_table:
- dev_pm_opp_of_remove_table(emc->dev);
-put_hw_table:
- dev_pm_opp_put_supported_hw(hw_opp_table);
-put_clk_table:
- dev_pm_opp_put_clkname(clk_opp_table);

return err;
}
--
2.25.1