[PATCH v9 4/5] clk: samsung: exynos-audss: Use local variable for controller's device

From: Marek Szyprowski <m.szyprowski@samsung.com>
To: linux-clk@vger.kernel.org, linux-pm@vger.kernel.org,
	linux-samsung-soc@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Cc: Marek Szyprowski <m.szyprowski@samsung.com>,
	Stephen Boyd <sboyd@codeaurora.org>,
	Michael Turquette <mturquette@baylibre.com>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	Sylwester Nawrocki <s.nawrocki@samsung.com>,
	Chanwoo Choi <cw00.choi@samsung.com>,
	Inki Dae <inki.dae@samsung.com>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Subject: [PATCH v9 4/5] clk: samsung: exynos-audss: Use local variable for controller's device
Date: Mon, 21 Aug 2017 10:05:02 +0200	[thread overview]
Message-ID: <1503302703-13801-5-git-send-email-m.szyprowski@samsung.com> (raw)
In-Reply-To: <1503302703-13801-1-git-send-email-m.szyprowski@samsung.com>

Store pointer to the controller's device in local variable to avoid
extracting it from platform device in each call. This will also simplify
code in the future, when runtime PM support is added.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
---
 drivers/clk/samsung/clk-exynos-audss.c | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/drivers/clk/samsung/clk-exynos-audss.c b/drivers/clk/samsung/clk-exynos-audss.c
index 1fab56f396d4..6be52fb46ff3 100644
--- a/drivers/clk/samsung/clk-exynos-audss.c
+++ b/drivers/clk/samsung/clk-exynos-audss.c
@@ -135,6 +135,7 @@ static int exynos_audss_clk_probe(struct platform_device *pdev)
 	const struct exynos_audss_clk_drvdata *variant;
 	struct clk_hw **clk_table;
 	struct resource *res;
+	struct device *dev = &pdev->dev;
 	int i, ret = 0;
 
 	variant = of_device_get_match_data(&pdev->dev);
@@ -142,15 +143,15 @@ static int exynos_audss_clk_probe(struct platform_device *pdev)
 		return -EINVAL;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	reg_base = devm_ioremap_resource(&pdev->dev, res);
+	reg_base = devm_ioremap_resource(dev, res);
 	if (IS_ERR(reg_base)) {
-		dev_err(&pdev->dev, "failed to map audss registers\n");
+		dev_err(dev, "failed to map audss registers\n");
 		return PTR_ERR(reg_base);
 	}
 
 	epll = ERR_PTR(-ENODEV);
 
-	clk_data = devm_kzalloc(&pdev->dev,
+	clk_data = devm_kzalloc(dev,
 				sizeof(*clk_data) +
 				sizeof(*clk_data->hws) * EXYNOS_AUDSS_MAX_CLKS,
 				GFP_KERNEL);
@@ -160,8 +161,8 @@ static int exynos_audss_clk_probe(struct platform_device *pdev)
 	clk_data->num = variant->num_clks;
 	clk_table = clk_data->hws;
 
-	pll_ref = devm_clk_get(&pdev->dev, "pll_ref");
-	pll_in = devm_clk_get(&pdev->dev, "pll_in");
+	pll_ref = devm_clk_get(dev, "pll_ref");
+	pll_in = devm_clk_get(dev, "pll_in");
 	if (!IS_ERR(pll_ref))
 		mout_audss_p[0] = __clk_get_name(pll_ref);
 	if (!IS_ERR(pll_in)) {
@@ -172,7 +173,7 @@ static int exynos_audss_clk_probe(struct platform_device *pdev)
 
 			ret = clk_prepare_enable(epll);
 			if (ret) {
-				dev_err(&pdev->dev,
+				dev_err(dev,
 					"failed to prepare the epll clock\n");
 				return ret;
 			}
@@ -183,8 +184,8 @@ static int exynos_audss_clk_probe(struct platform_device *pdev)
 				CLK_SET_RATE_NO_REPARENT,
 				reg_base + ASS_CLK_SRC, 0, 1, 0, &lock);
 
-	cdclk = devm_clk_get(&pdev->dev, "cdclk");
-	sclk_audio = devm_clk_get(&pdev->dev, "sclk_audio");
+	cdclk = devm_clk_get(dev, "cdclk");
+	sclk_audio = devm_clk_get(dev, "sclk_audio");
 	if (!IS_ERR(cdclk))
 		mout_i2s_p[1] = __clk_get_name(cdclk);
 	if (!IS_ERR(sclk_audio))
@@ -222,7 +223,7 @@ static int exynos_audss_clk_probe(struct platform_device *pdev)
 				 "sclk_pcm", CLK_SET_RATE_PARENT,
 				reg_base + ASS_CLK_GATE, 4, 0, &lock);
 
-	sclk_pcm_in = devm_clk_get(&pdev->dev, "sclk_pcm_in");
+	sclk_pcm_in = devm_clk_get(dev, "sclk_pcm_in");
 	if (!IS_ERR(sclk_pcm_in))
 		sclk_pcm_p = __clk_get_name(sclk_pcm_in);
 	clk_table[EXYNOS_SCLK_PCM] = clk_hw_register_gate(NULL, "sclk_pcm",
@@ -237,16 +238,16 @@ static int exynos_audss_clk_probe(struct platform_device *pdev)
 
 	for (i = 0; i < clk_data->num; i++) {
 		if (IS_ERR(clk_table[i])) {
-			dev_err(&pdev->dev, "failed to register clock %d\n", i);
+			dev_err(dev, "failed to register clock %d\n", i);
 			ret = PTR_ERR(clk_table[i]);
 			goto unregister;
 		}
 	}
 
-	ret = of_clk_add_hw_provider(pdev->dev.of_node, of_clk_hw_onecell_get,
+	ret = of_clk_add_hw_provider(dev->of_node, of_clk_hw_onecell_get,
 				     clk_data);
 	if (ret) {
-		dev_err(&pdev->dev, "failed to add clock provider\n");
+		dev_err(dev, "failed to add clock provider\n");
 		goto unregister;
 	}
 
-- 
1.9.1
