diff options
| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-09-04 17:07:22 +0400 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-09-05 20:02:30 +0400 |
| commit | 55c381e4896be2611da87088acfad74b361239ab (patch) | |
| tree | 1515420c29dbbfd987f0157f16d8bb8cac938c15 /drivers/char/hw_random | |
| parent | 690b5a13b27ba3bb2c9d61c1f4018c5074b591e6 (diff) | |
| download | linux-55c381e4896be2611da87088acfad74b361239ab.tar.xz | |
[ARM] omap: convert OMAP drivers to use ioremap()
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/char/hw_random')
| -rw-r--r-- | drivers/char/hw_random/omap-rng.c | 33 |
1 files changed, 25 insertions, 8 deletions
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c index 51738bdd834e..d4e7dca06e4f 100644 --- a/drivers/char/hw_random/omap-rng.c +++ b/drivers/char/hw_random/omap-rng.c @@ -118,18 +118,21 @@ static int __init omap_rng_probe(struct platform_device *pdev) mem = request_mem_region(res->start, res->end - res->start + 1, pdev->name); - if (mem == NULL) - return -EBUSY; + if (mem == NULL) { + ret = -EBUSY; + goto err_region; + } dev_set_drvdata(&pdev->dev, mem); - rng_base = (u32 __force __iomem *)io_p2v(res->start); + rng_base = ioremap(res->start, res->end - res->start + 1); + if (!rng_base) { + ret = -ENOMEM; + goto err_ioremap; + } ret = hwrng_register(&omap_rng_ops); - if (ret) { - release_resource(mem); - rng_base = NULL; - return ret; - } + if (ret) + goto err_register; dev_info(&pdev->dev, "OMAP Random Number Generator ver. %02x\n", omap_rng_read_reg(RNG_REV_REG)); @@ -138,6 +141,18 @@ static int __init omap_rng_probe(struct platform_device *pdev) rng_dev = pdev; return 0; + +err_register: + iounmap(rng_base); + rng_base = NULL; +err_ioremap: + release_resource(mem); +err_region: + if (cpu_is_omap24xx()) { + clk_disable(rng_ick); + clk_put(rng_ick); + } + return ret; } static int __exit omap_rng_remove(struct platform_device *pdev) @@ -148,6 +163,8 @@ static int __exit omap_rng_remove(struct platform_device *pdev) omap_rng_write_reg(RNG_MASK_REG, 0x0); + iounmap(rng_base); + if (cpu_is_omap24xx()) { clk_disable(rng_ick); clk_put(rng_ick); |