mcs814x: remove linux 3.3 support

[openwrt/svn-archive/archive.git] / target / linux / mcs814x / files-3.3 / drivers / char / hw_random / mcs814x-rng.c

diff --git a/target/linux/mcs814x/files-3.3/drivers/char/hw_random/mcs814x-rng.c b/target/linux/mcs814x/files-3.3/drivers/char/hw_random/mcs814x-rng.c
deleted file mode 100644 (file)
index 5e3d8f2..0000000
--- a/target/linux/mcs814x/files-3.3/drivers/char/hw_random/mcs814x-rng.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * RNG driver for Moschip MCS814x SoC
- *
- * Copyright 2012 (C), Florian Fainelli <florian@openwrt.org>
- *
- * This file is licensed under  the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/platform_device.h>
-#include <linux/hw_random.h>
-#include <linux/io.h>
-#include <linux/of.h>
-
-#define STAT   0x00
-#define RND    0x04
-
-struct mcs814x_rng_priv {
-       void __iomem    *regs;
-};
-
-static int mcs814x_rng_data_read(struct hwrng *rng, u32 *buffer)
-{
-       struct mcs814x_rng_priv *priv = (struct mcs814x_rng_priv *)rng->priv;
-
-       *buffer = readl_relaxed(priv->regs + RND);
-
-       return 4;
-}
-
-static int mcs814x_rng_probe(struct platform_device *pdev)
-{
-       struct resource *res;
-       struct mcs814x_rng_priv *priv;
-       struct hwrng *rng;
-       int ret;
-
-       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       if (!res)
-               return -ENODEV;
-
-       priv = kzalloc(sizeof(*priv), GFP_KERNEL);
-       if (!priv) {
-               ret = -ENOMEM;
-               goto out;
-       }
-
-       rng = kzalloc(sizeof(*rng), GFP_KERNEL);
-       if (!rng) {
-               ret = -ENOMEM;
-               goto out_priv;
-       }
-
-       platform_set_drvdata(pdev, rng);
-       rng->priv = (unsigned long)priv;
-       rng->name = pdev->name;
-       rng->data_read = mcs814x_rng_data_read;
-
-       priv->regs = devm_request_and_ioremap(&pdev->dev, res);
-       if (!priv->regs) {
-               ret = -ENOMEM;
-               goto out_rng;
-       }
-
-       ret = hwrng_register(rng);
-       if (ret) {
-               dev_err(&pdev->dev, "failed to register hwrng driver\n");
-               goto out;
-       }
-
-       dev_info(&pdev->dev, "registered\n");
-
-       return ret;
-
-out_rng:
-       platform_set_drvdata(pdev, NULL);
-       kfree(rng);
-out_priv:
-       kfree(priv);
-out:
-       return ret;
-}
-
-static int mcs814x_rng_remove(struct platform_device *pdev)
-{
-       struct hwrng *rng = platform_get_drvdata(pdev);
-       struct mcs814x_rng_priv *priv = (struct mcs814x_rng_priv *)rng->priv;
-
-       hwrng_unregister(rng);
-       kfree(priv);
-       kfree(rng);
-       platform_set_drvdata(pdev, NULL);
-
-       return 0;
-}
-
-static const struct of_device_id mcs814x_rng_ids[] = {
-       { .compatible = "moschip,mcs814x-rng", },
-       { /* sentinel */ },
-};
-
-static struct platform_driver mcs814x_rng_driver = {
-       .driver = {
-               .name   = "mcs814x-rng",
-               .owner  = THIS_MODULE,
-               .of_match_table = mcs814x_rng_ids,
-       },
-       .probe  = mcs814x_rng_probe,
-       .remove = __devexit_p(mcs814x_rng_remove),
-};
-
-module_platform_driver(mcs814x_rng_driver);
-
-MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
-MODULE_DESCRIPTION("H/W Random Number Generator (RNG) for Moschip MCS814x");
-MODULE_LICENSE("GPL");