linux-kernel - [PATCH v6 15/33] crypto: rockchip: use clk

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Message-Id: <20220425202119.3566743-16-clabbe@baylibre.com>
Date:   Mon, 25 Apr 2022 20:21:01 +0000
From:   Corentin Labbe <clabbe@...libre.com>
To:     heiko@...ech.de, herbert@...dor.apana.org.au,
        krzysztof.kozlowski+dt@...aro.org, robh+dt@...nel.org
Cc:     linux-crypto@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-rockchip@...ts.infradead.org,
        Corentin Labbe <clabbe@...libre.com>
Subject: [PATCH v6 15/33] crypto: rockchip: use clk_bulk to simplify clock management

rk3328 does not have the same clock names than rk3288, instead of using a complex
clock management, let's use clk_bulk to simplify their handling.

Signed-off-by: Corentin Labbe <clabbe@...libre.com>
---
 drivers/crypto/rockchip/rk3288_crypto.c | 66 ++++---------------------
 drivers/crypto/rockchip/rk3288_crypto.h |  6 +--
 2 files changed, 11 insertions(+), 61 deletions(-)

diff --git a/drivers/crypto/rockchip/rk3288_crypto.c b/drivers/crypto/rockchip/rk3288_crypto.c
index a11a92e1f3fd..97ef59a36be6 100644
--- a/drivers/crypto/rockchip/rk3288_crypto.c
+++ b/drivers/crypto/rockchip/rk3288_crypto.c
@@ -22,47 +22,16 @@ static int rk_crypto_enable_clk(struct rk_crypto_info *dev)
 {
 	int err;
 
-	err = clk_prepare_enable(dev->sclk);
-	if (err) {
-		dev_err(dev->dev, "[%s:%d], Couldn't enable clock sclk\n",
-			__func__, __LINE__);
-		goto err_return;
-	}
-	err = clk_prepare_enable(dev->aclk);
-	if (err) {
-		dev_err(dev->dev, "[%s:%d], Couldn't enable clock aclk\n",
-			__func__, __LINE__);
-		goto err_aclk;
-	}
-	err = clk_prepare_enable(dev->hclk);
-	if (err) {
-		dev_err(dev->dev, "[%s:%d], Couldn't enable clock hclk\n",
-			__func__, __LINE__);
-		goto err_hclk;
-	}
-	err = clk_prepare_enable(dev->dmaclk);
-	if (err) {
-		dev_err(dev->dev, "[%s:%d], Couldn't enable clock dmaclk\n",
-			__func__, __LINE__);
-		goto err_dmaclk;
-	}
-	return err;
-err_dmaclk:
-	clk_disable_unprepare(dev->hclk);
-err_hclk:
-	clk_disable_unprepare(dev->aclk);
-err_aclk:
-	clk_disable_unprepare(dev->sclk);
-err_return:
+	err = clk_bulk_prepare_enable(dev->num_clks, dev->clks);
+	if (err)
+		dev_err(dev->dev, "Could not enable clock clks\n");
+
 	return err;
 }
 
 static void rk_crypto_disable_clk(struct rk_crypto_info *dev)
 {
-	clk_disable_unprepare(dev->dmaclk);
-	clk_disable_unprepare(dev->hclk);
-	clk_disable_unprepare(dev->aclk);
-	clk_disable_unprepare(dev->sclk);
+	clk_bulk_disable_unprepare(dev->num_clks, dev->clks);
 }
 
 /*
@@ -257,27 +226,10 @@ static int rk_crypto_probe(struct platform_device *pdev)
 		goto err_crypto;
 	}
 
-	crypto_info->aclk = devm_clk_get(&pdev->dev, "aclk");
-	if (IS_ERR(crypto_info->aclk)) {
-		err = PTR_ERR(crypto_info->aclk);
-		goto err_crypto;
-	}
-
-	crypto_info->hclk = devm_clk_get(&pdev->dev, "hclk");
-	if (IS_ERR(crypto_info->hclk)) {
-		err = PTR_ERR(crypto_info->hclk);
-		goto err_crypto;
-	}
-
-	crypto_info->sclk = devm_clk_get(&pdev->dev, "sclk");
-	if (IS_ERR(crypto_info->sclk)) {
-		err = PTR_ERR(crypto_info->sclk);
-		goto err_crypto;
-	}
-
-	crypto_info->dmaclk = devm_clk_get(&pdev->dev, "apb_pclk");
-	if (IS_ERR(crypto_info->dmaclk)) {
-		err = PTR_ERR(crypto_info->dmaclk);
+	crypto_info->num_clks = devm_clk_bulk_get_all(&pdev->dev,
+						      &crypto_info->clks);
+	if (crypto_info->num_clks < 3) {
+		err = -EINVAL;
 		goto err_crypto;
 	}
 
diff --git a/drivers/crypto/rockchip/rk3288_crypto.h b/drivers/crypto/rockchip/rk3288_crypto.h
index ddbb9246ce16..28bf09fe1c1d 100644
--- a/drivers/crypto/rockchip/rk3288_crypto.h
+++ b/drivers/crypto/rockchip/rk3288_crypto.h
@@ -190,10 +190,8 @@
 
 struct rk_crypto_info {
 	struct device			*dev;
-	struct clk			*aclk;
-	struct clk			*hclk;
-	struct clk			*sclk;
-	struct clk			*dmaclk;
+	struct clk_bulk_data		*clks;
+	int num_clks;
 	struct reset_control		*rst;
 	void __iomem			*reg;
 	int				irq;
-- 
2.35.1