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Date:   Fri,  1 Jan 2021 16:55:00 +0000
From:   Yangtao Li <tiny.windzz@...il.com>
To:     myungjoo.ham@...sung.com, kyungmin.park@...sung.com,
        cw00.choi@...sung.com, krzk@...nel.org, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        linux-imx@....com, digetx@...il.com, thierry.reding@...il.com,
        jonathanh@...dia.com, yuq825@...il.com, airlied@...ux.ie,
        daniel@...ll.ch, robdclark@...il.com, sean@...rly.run,
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        alyssa.rosenzweig@...labora.com, stanimir.varbanov@...aro.org,
        agross@...nel.org, bjorn.andersson@...aro.org, mchehab@...nel.org,
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        natechancellor@...il.com, georgi.djakov@...aro.org,
        akashast@...eaurora.org, parashar@...eaurora.org,
        dianders@...omium.org
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-samsung-soc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-tegra@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, lima@...ts.freedesktop.org,
        linux-arm-msm@...r.kernel.org, freedreno@...ts.freedesktop.org,
        linux-media@...r.kernel.org, linux-mmc@...r.kernel.org,
        linux-spi@...r.kernel.org, linux-serial@...r.kernel.org
Subject: [PATCH 24/31] memory: tegra20: convert to use devm_pm_opp_* API

Use devm_pm_opp_* API to simplify code.

Signed-off-by: Yangtao Li <tiny.windzz@...il.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

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