linux-kernel - [PATCH v1 07/12] i2c: tegra: Use dev_err

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Message-Id: <20200831202303.15391-8-digetx@gmail.com>
Date:   Mon, 31 Aug 2020 23:22:58 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Laxman Dewangan <ldewangan@...dia.com>,
        Wolfram Sang <wsa@...-dreams.de>
Cc:     linux-i2c@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v1 07/12] i2c: tegra: Use dev_err_probe()

Use dev_err_probe() to replace the manual -EPROBE_DEFER handling, making
code cleaner.

Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 drivers/i2c/busses/i2c-tegra.c | 31 ++++++++++++-------------------
 1 file changed, 12 insertions(+), 19 deletions(-)

diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index 2c00f2e39514..525a757bdc66 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -1646,8 +1646,8 @@ MODULE_DEVICE_TABLE(of, tegra_i2c_of_match);
 
 static int tegra_i2c_probe(struct platform_device *pdev)
 {
+	struct clk *div_clk, *fast_clk, *slow_clk;
 	struct device *dev = &pdev->dev;
-	struct clk *div_clk, *fast_clk;
 	struct tegra_i2c_dev *i2c_dev;
 	phys_addr_t base_phys;
 	struct resource *res;
@@ -1668,12 +1668,9 @@ static int tegra_i2c_probe(struct platform_device *pdev)
 	irq = res->start;
 
 	div_clk = devm_clk_get(&pdev->dev, "div-clk");
-	if (IS_ERR(div_clk)) {
-		if (PTR_ERR(div_clk) != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "missing controller clock\n");
-
-		return PTR_ERR(div_clk);
-	}
+	if (IS_ERR(div_clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(div_clk),
+				     "failed to get div-clk\n");
 
 	i2c_dev = devm_kzalloc(&pdev->dev, sizeof(*i2c_dev), GFP_KERNEL);
 	if (!i2c_dev)
@@ -1712,24 +1709,20 @@ static int tegra_i2c_probe(struct platform_device *pdev)
 
 	if (!i2c_dev->hw->has_single_clk_source) {
 		fast_clk = devm_clk_get(&pdev->dev, "fast-clk");
-		if (IS_ERR(fast_clk)) {
-			dev_err(dev, "failed to get fast clock\n: %ld\n",
-				PTR_ERR(fast_clk));
+		if (IS_ERR(fast_clk))
+			return dev_err_probe(&pdev->dev, PTR_ERR(fast_clk),
+					     "failed to get fast clock\n");
 
-			return PTR_ERR(fast_clk);
-		}
 		i2c_dev->fast_clk = fast_clk;
 	}
 
 	if (i2c_dev->is_vi) {
-		i2c_dev->slow_clk = devm_clk_get(dev, "slow");
-		if (IS_ERR(i2c_dev->slow_clk)) {
-			if (PTR_ERR(i2c_dev->slow_clk) != -EPROBE_DEFER)
-				dev_err(dev, "failed to get slow clock: %ld\n",
-					PTR_ERR(i2c_dev->slow_clk));
+		slow_clk = devm_clk_get(dev, "slow");
+		if (IS_ERR(slow_clk))
+			return dev_err_probe(&pdev->dev, PTR_ERR(slow_clk),
+					     "failed to get slow clock\n");
 
-			return PTR_ERR(i2c_dev->slow_clk);
-		}
+		i2c_dev->slow_clk = slow_clk;
 	}
 
 	platform_set_drvdata(pdev, i2c_dev);
-- 
2.27.0