linux-kernel - [PATCH 05/10] clk: sunxi-ng: Simplify with dev_err

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Date:   Wed,  2 Sep 2020 17:03:43 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Ludovic Desroches <ludovic.desroches@...rochip.com>,
        David Lechner <david@...hnology.com>,
        Sekhar Nori <nsekhar@...com>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Neil Armstrong <narmstrong@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>, linux-clk@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-amlogic@...ts.infradead.org, linux-arm-msm@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzk@...nel.org>
Subject: [PATCH 05/10] clk: sunxi-ng: Simplify with dev_err_probe()

Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and the error value gets printed.

Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
---
 drivers/clk/sunxi-ng/ccu-sun8i-de2.c     | 28 ++++++++----------------
 drivers/clk/sunxi-ng/ccu-sun9i-a80-de.c  | 19 +++++-----------
 drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c |  9 +++-----
 3 files changed, 18 insertions(+), 38 deletions(-)

diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-de2.c b/drivers/clk/sunxi-ng/ccu-sun8i-de2.c
index 524f33275bc7..0de024d3e466 100644
--- a/drivers/clk/sunxi-ng/ccu-sun8i-de2.c
+++ b/drivers/clk/sunxi-ng/ccu-sun8i-de2.c
@@ -297,29 +297,19 @@ static int sunxi_de2_clk_probe(struct platform_device *pdev)
 		return PTR_ERR(reg);
 
 	bus_clk = devm_clk_get(&pdev->dev, "bus");
-	if (IS_ERR(bus_clk)) {
-		ret = PTR_ERR(bus_clk);
-		if (ret != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "Couldn't get bus clk: %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(bus_clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(bus_clk),
+				     "Couldn't get bus clk\n");
 
 	mod_clk = devm_clk_get(&pdev->dev, "mod");
-	if (IS_ERR(mod_clk)) {
-		ret = PTR_ERR(mod_clk);
-		if (ret != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "Couldn't get mod clk: %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(mod_clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(mod_clk),
+				     "Couldn't get mod clk\n");
 
 	rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL);
-	if (IS_ERR(rstc)) {
-		ret = PTR_ERR(rstc);
-		if (ret != -EPROBE_DEFER)
-			dev_err(&pdev->dev,
-				"Couldn't get reset control: %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(rstc))
+		return dev_err_probe(&pdev->dev, PTR_ERR(rstc),
+				     "Couldn't get reset control\n");
 
 	/* The clocks need to be enabled for us to access the registers */
 	ret = clk_prepare_enable(bus_clk);
diff --git a/drivers/clk/sunxi-ng/ccu-sun9i-a80-de.c b/drivers/clk/sunxi-ng/ccu-sun9i-a80-de.c
index 6616e8114f62..541c3d32b93e 100644
--- a/drivers/clk/sunxi-ng/ccu-sun9i-a80-de.c
+++ b/drivers/clk/sunxi-ng/ccu-sun9i-a80-de.c
@@ -215,21 +215,14 @@ static int sun9i_a80_de_clk_probe(struct platform_device *pdev)
 		return PTR_ERR(reg);
 
 	bus_clk = devm_clk_get(&pdev->dev, "bus");
-	if (IS_ERR(bus_clk)) {
-		ret = PTR_ERR(bus_clk);
-		if (ret != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "Couldn't get bus clk: %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(bus_clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(bus_clk),
+				     "Couldn't get bus clk\n");
 
 	rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL);
-	if (IS_ERR(rstc)) {
-		ret = PTR_ERR(rstc);
-		if (ret != -EPROBE_DEFER)
-			dev_err(&pdev->dev,
-				"Couldn't get reset control: %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(rstc))
+		return dev_err_probe(&pdev->dev, PTR_ERR(rstc),
+				     "Couldn't get reset control\n");
 
 	/* The bus clock needs to be enabled for us to access the registers */
 	ret = clk_prepare_enable(bus_clk);
diff --git a/drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c b/drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c
index 4b4a507d04ed..f6a3989fea36 100644
--- a/drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c
+++ b/drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c
@@ -103,12 +103,9 @@ static int sun9i_a80_usb_clk_probe(struct platform_device *pdev)
 		return PTR_ERR(reg);
 
 	bus_clk = devm_clk_get(&pdev->dev, "bus");
-	if (IS_ERR(bus_clk)) {
-		ret = PTR_ERR(bus_clk);
-		if (ret != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "Couldn't get bus clk: %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(bus_clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(bus_clk),
+				     "Couldn't get bus clk\n");
 
 	/* The bus clock needs to be enabled for us to access the registers */
 	ret = clk_prepare_enable(bus_clk);
-- 
2.17.1