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path: root/drivers/char/hw_random/mxc-rnga.c
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Diffstat (limited to 'drivers/char/hw_random/mxc-rnga.c')
-rw-r--r--drivers/char/hw_random/mxc-rnga.c25
1 files changed, 8 insertions, 17 deletions
diff --git a/drivers/char/hw_random/mxc-rnga.c b/drivers/char/hw_random/mxc-rnga.c
index 07ec000e4cd7..e3fcb8bcc29b 100644
--- a/drivers/char/hw_random/mxc-rnga.c
+++ b/drivers/char/hw_random/mxc-rnga.c
@@ -131,7 +131,7 @@ static void mxc_rnga_cleanup(struct hwrng *rng)
__raw_writel(ctrl & ~RNGA_CONTROL_GO, mxc_rng->mem + RNGA_CONTROL);
}
-static int __init mxc_rnga_probe(struct platform_device *pdev)
+static int mxc_rnga_probe(struct platform_device *pdev)
{
int err;
struct mxc_rng *mxc_rng;
@@ -147,42 +147,32 @@ static int __init mxc_rnga_probe(struct platform_device *pdev)
mxc_rng->rng.data_present = mxc_rnga_data_present;
mxc_rng->rng.data_read = mxc_rnga_data_read;
- mxc_rng->clk = devm_clk_get(&pdev->dev, NULL);
+ mxc_rng->clk = devm_clk_get_enabled(&pdev->dev, NULL);
if (IS_ERR(mxc_rng->clk)) {
dev_err(&pdev->dev, "Could not get rng_clk!\n");
return PTR_ERR(mxc_rng->clk);
}
- err = clk_prepare_enable(mxc_rng->clk);
- if (err)
- return err;
-
mxc_rng->mem = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(mxc_rng->mem)) {
err = PTR_ERR(mxc_rng->mem);
- goto err_ioremap;
+ return err;
}
err = hwrng_register(&mxc_rng->rng);
if (err) {
dev_err(&pdev->dev, "MXC RNGA registering failed (%d)\n", err);
- goto err_ioremap;
+ return err;
}
return 0;
-
-err_ioremap:
- clk_disable_unprepare(mxc_rng->clk);
- return err;
}
-static void __exit mxc_rnga_remove(struct platform_device *pdev)
+static void mxc_rnga_remove(struct platform_device *pdev)
{
struct mxc_rng *mxc_rng = platform_get_drvdata(pdev);
hwrng_unregister(&mxc_rng->rng);
-
- clk_disable_unprepare(mxc_rng->clk);
}
static const struct of_device_id mxc_rnga_of_match[] = {
@@ -197,10 +187,11 @@ static struct platform_driver mxc_rnga_driver = {
.name = "mxc_rnga",
.of_match_table = mxc_rnga_of_match,
},
- .remove_new = __exit_p(mxc_rnga_remove),
+ .probe = mxc_rnga_probe,
+ .remove = mxc_rnga_remove,
};
-module_platform_driver_probe(mxc_rnga_driver, mxc_rnga_probe);
+module_platform_driver(mxc_rnga_driver);
MODULE_AUTHOR("Freescale Semiconductor, Inc.");
MODULE_DESCRIPTION("H/W RNGA driver for i.MX");