These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / crypto / atmel-sha.c

diff --git a/kernel/drivers/crypto/atmel-sha.c b/kernel/drivers/crypto/atmel-sha.c
index 5b35433..3178f84 100644 (file)
--- 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;
 }