linux-kernel - [PATCH v2 12/13] memory: ti-aemif: simplify with devm_clk_get

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Message-Id: <20240816-cleanup-h-of-node-put-memory-v2-12-9eed0ee16b78@linaro.org>
Date: Fri, 16 Aug 2024 12:54:36 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Krzysztof Kozlowski <krzk@...nel.org>, 
 Nicolas Ferre <nicolas.ferre@...rochip.com>, 
 Alexandre Belloni <alexandre.belloni@...tlin.com>, 
 Claudiu Beznea <claudiu.beznea@...on.dev>, 
 Lukasz Luba <lukasz.luba@....com>, Alim Akhtar <alim.akhtar@...sung.com>, 
 Maxime Coquelin <mcoquelin.stm32@...il.com>, 
 Alexandre Torgue <alexandre.torgue@...s.st.com>, 
 Thierry Reding <thierry.reding@...il.com>, 
 Jonathan Hunter <jonathanh@...dia.com>, 
 Santosh Shilimkar <ssantosh@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-pm@...r.kernel.org, linux-samsung-soc@...r.kernel.org, 
 linux-stm32@...md-mailman.stormreply.com, linux-tegra@...r.kernel.org, 
 Jonathan Cameron <Jonathan.Cameron@...wei.com>, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v2 12/13] memory: ti-aemif: simplify with
 devm_clk_get_enabled()

Use devm_clk_get_enabled() to drop clock prepare/unprepare parts and
make code simpler.

Suggested-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

---

Changes in v2:
1. New patch
---
 drivers/memory/ti-aemif.c | 29 ++++++-----------------------
 1 file changed, 6 insertions(+), 23 deletions(-)

diff --git a/drivers/memory/ti-aemif.c b/drivers/memory/ti-aemif.c
index 360f2705b1ff..bb9c8132d8c0 100644
--- a/drivers/memory/ti-aemif.c
+++ b/drivers/memory/ti-aemif.c
@@ -344,14 +344,10 @@ static int aemif_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, aemif);
 
-	aemif->clk = devm_clk_get(dev, NULL);
+	aemif->clk = devm_clk_get_enabled(dev, NULL);
 	if (IS_ERR(aemif->clk))
 		return dev_err_probe(dev, PTR_ERR(aemif->clk), "cannot get clock 'aemif'\n");
 
-	ret = clk_prepare_enable(aemif->clk);
-	if (ret)
-		return ret;
-
 	aemif->clk_rate = clk_get_rate(aemif->clk) / MSEC_PER_SEC;
 
 	if (np && of_device_is_compatible(np, "ti,da850-aemif"))
@@ -360,10 +356,8 @@ static int aemif_probe(struct platform_device *pdev)
 		aemif->cs_offset = pdata->cs_offset;
 
 	aemif->base = devm_platform_ioremap_resource(pdev, 0);
-	if (IS_ERR(aemif->base)) {
-		ret = PTR_ERR(aemif->base);
-		goto error;
-	}
+	if (IS_ERR(aemif->base))
+		return PTR_ERR(aemif->base);
 
 	if (np) {
 		/*
@@ -376,7 +370,7 @@ static int aemif_probe(struct platform_device *pdev)
 			ret = of_aemif_parse_abus_config(pdev, child_np);
 			if (ret < 0) {
 				of_node_put(child_np);
-				goto error;
+				return ret;
 			}
 		}
 	} else if (pdata && pdata->num_abus_data > 0) {
@@ -391,7 +385,7 @@ static int aemif_probe(struct platform_device *pdev)
 		if (ret < 0) {
 			dev_err(dev, "Error configuring chip select %d\n",
 				aemif->cs_data[i].cs);
-			goto error;
+			return ret;
 		}
 	}
 
@@ -405,7 +399,7 @@ static int aemif_probe(struct platform_device *pdev)
 						   dev_lookup, dev);
 			if (ret < 0) {
 				of_node_put(child_np);
-				goto error;
+				return ret;
 			}
 		}
 	} else if (pdata) {
@@ -420,21 +414,10 @@ static int aemif_probe(struct platform_device *pdev)
 	}
 
 	return 0;
-error:
-	clk_disable_unprepare(aemif->clk);
-	return ret;
-}
-
-static void aemif_remove(struct platform_device *pdev)
-{
-	struct aemif_device *aemif = platform_get_drvdata(pdev);
-
-	clk_disable_unprepare(aemif->clk);
 }
 
 static struct platform_driver aemif_driver = {
 	.probe = aemif_probe,
-	.remove_new = aemif_remove,
 	.driver = {
 		.name = "ti-aemif",
 		.of_match_table = of_match_ptr(aemif_of_match),

-- 
2.43.0