X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fcrypto%2Fatmel-sha.c;fp=kernel%2Fdrivers%2Fcrypto%2Fatmel-sha.c;h=3178f84d2757c9f3de8ea6114831d43f2eb17507;hb=e09b41010ba33a20a87472ee821fa407a5b8da36;hp=5b35433c5399b1264712d6b785cacea6abca5c9b;hpb=f93b97fd65072de626c074dbe099a1fff05ce060;p=kvmfornfv.git

diff --git a/kernel/drivers/crypto/atmel-sha.c b/kernel/drivers/crypto/atmel-sha.c
index 5b35433c5..3178f84d2 100644
--- a/kernel/drivers/crypto/atmel-sha.c
+++ b/kernel/drivers/crypto/atmel-sha.c
@@ -783,7 +783,7 @@ static void atmel_sha_finish_req(struct ahash_request *req, int err)
 	dd->flags &= ~(SHA_FLAGS_BUSY | SHA_FLAGS_FINAL | SHA_FLAGS_CPU |
 			SHA_FLAGS_DMA_READY | SHA_FLAGS_OUTPUT_READY);
 
-	clk_disable_unprepare(dd->iclk);
+	clk_disable(dd->iclk);
 
 	if (req->base.complete)
 		req->base.complete(&req->base, err);
@@ -794,7 +794,11 @@ static void atmel_sha_finish_req(struct ahash_request *req, int err)
 
 static int atmel_sha_hw_init(struct atmel_sha_dev *dd)
 {
-	clk_prepare_enable(dd->iclk);
+	int err;
+
+	err = clk_enable(dd->iclk);
+	if (err)
+		return err;
 
 	if (!(SHA_FLAGS_INIT & dd->flags)) {
 		atmel_sha_write(dd, SHA_CR, SHA_CR_SWRST);
@@ -819,7 +823,7 @@ static void atmel_sha_hw_version_init(struct atmel_sha_dev *dd)
 	dev_info(dd->dev,
 			"version: 0x%x\n", dd->hw_version);
 
-	clk_disable_unprepare(dd->iclk);
+	clk_disable(dd->iclk);
 }
 
 static int atmel_sha_handle_queue(struct atmel_sha_dev *dd,
@@ -1345,11 +1349,9 @@ static int atmel_sha_probe(struct platform_device *pdev)
 	struct crypto_platform_data	*pdata;
 	struct device *dev = &pdev->dev;
 	struct resource *sha_res;
-	unsigned long sha_phys_size;
 	int err;
 
-	sha_dd = devm_kzalloc(&pdev->dev, sizeof(struct atmel_sha_dev),
-				GFP_KERNEL);
+	sha_dd = devm_kzalloc(&pdev->dev, sizeof(*sha_dd), GFP_KERNEL);
 	if (sha_dd == NULL) {
 		dev_err(dev, "unable to alloc data struct.\n");
 		err = -ENOMEM;
@@ -1378,7 +1380,6 @@ static int atmel_sha_probe(struct platform_device *pdev)
 		goto res_err;
 	}
 	sha_dd->phys_base = sha_res->start;
-	sha_phys_size = resource_size(sha_res);
 
 	/* Get the IRQ */
 	sha_dd->irq = platform_get_irq(pdev,  0);
@@ -1388,28 +1389,32 @@ static int atmel_sha_probe(struct platform_device *pdev)
 		goto res_err;
 	}
 
-	err = request_irq(sha_dd->irq, atmel_sha_irq, IRQF_SHARED, "atmel-sha",
-						sha_dd);
+	err = devm_request_irq(&pdev->dev, sha_dd->irq, atmel_sha_irq,
+			       IRQF_SHARED, "atmel-sha", sha_dd);
 	if (err) {
 		dev_err(dev, "unable to request sha irq.\n");
 		goto res_err;
 	}
 
 	/* Initializing the clock */
-	sha_dd->iclk = clk_get(&pdev->dev, "sha_clk");
+	sha_dd->iclk = devm_clk_get(&pdev->dev, "sha_clk");
 	if (IS_ERR(sha_dd->iclk)) {
 		dev_err(dev, "clock initialization failed.\n");
 		err = PTR_ERR(sha_dd->iclk);
-		goto clk_err;
+		goto res_err;
 	}
 
-	sha_dd->io_base = ioremap(sha_dd->phys_base, sha_phys_size);
+	sha_dd->io_base = devm_ioremap_resource(&pdev->dev, sha_res);
 	if (!sha_dd->io_base) {
 		dev_err(dev, "can't ioremap\n");
 		err = -ENOMEM;
-		goto sha_io_err;
+		goto res_err;
 	}
 
+	err = clk_prepare(sha_dd->iclk);
+	if (err)
+		goto res_err;
+
 	atmel_sha_hw_version_init(sha_dd);
 
 	atmel_sha_get_cap(sha_dd);
@@ -1421,12 +1426,12 @@ static int atmel_sha_probe(struct platform_device *pdev)
 			if (IS_ERR(pdata)) {
 				dev_err(&pdev->dev, "platform data not available\n");
 				err = PTR_ERR(pdata);
-				goto err_pdata;
+				goto iclk_unprepare;
 			}
 		}
 		if (!pdata->dma_slave) {
 			err = -ENXIO;
-			goto err_pdata;
+			goto iclk_unprepare;
 		}
 		err = atmel_sha_dma_init(sha_dd, pdata);
 		if (err)
@@ -1457,12 +1462,8 @@ err_algs:
 	if (sha_dd->caps.has_dma)
 		atmel_sha_dma_cleanup(sha_dd);
 err_sha_dma:
-err_pdata:
-	iounmap(sha_dd->io_base);
-sha_io_err:
-	clk_put(sha_dd->iclk);
-clk_err:
-	free_irq(sha_dd->irq, sha_dd);
+iclk_unprepare:
+	clk_unprepare(sha_dd->iclk);
 res_err:
 	tasklet_kill(&sha_dd->done_task);
 sha_dd_err:
@@ -1489,12 +1490,7 @@ static int atmel_sha_remove(struct platform_device *pdev)
 	if (sha_dd->caps.has_dma)
 		atmel_sha_dma_cleanup(sha_dd);
 
-	iounmap(sha_dd->io_base);
-
-	clk_put(sha_dd->iclk);
-
-	if (sha_dd->irq >= 0)
-		free_irq(sha_dd->irq, sha_dd);
+	clk_unprepare(sha_dd->iclk);
 
 	return 0;
 }