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authorTian Tao <tiantao6@hisilicon.com>2021-03-13 04:42:35 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2021-03-19 13:59:46 +0300
commitf50281df94d76d40e8afa2433f39c7b4b8bd6868 (patch)
treed0f331d8c32e01d9389dc8713216f07eedefa7f8 /drivers/char
parente0ba808db7bae1837249c19fe24cc95364a4d483 (diff)
downloadlinux-f50281df94d76d40e8afa2433f39c7b4b8bd6868.tar.xz
hwrng: cctrng - use devm_platform_ioremap_resource() to simplify
Use devm_platform_ioremap_resource() to simplify the code. Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/hw_random/cctrng.c12
1 files changed, 1 insertions, 11 deletions
diff --git a/drivers/char/hw_random/cctrng.c b/drivers/char/hw_random/cctrng.c
index 0efb37adbfa3..102195ef376d 100644
--- a/drivers/char/hw_random/cctrng.c
+++ b/drivers/char/hw_random/cctrng.c
@@ -486,7 +486,6 @@ static void cc_trng_clk_fini(struct cctrng_drvdata *drvdata)
static int cctrng_probe(struct platform_device *pdev)
{
- struct resource *req_mem_cc_regs = NULL;
struct cctrng_drvdata *drvdata;
struct device *dev = &pdev->dev;
int rc = 0;
@@ -510,21 +509,12 @@ static int cctrng_probe(struct platform_device *pdev)
drvdata->circ.buf = (char *)drvdata->data_buf;
- /* Get device resources */
- /* First CC registers space */
- req_mem_cc_regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- /* Map registers space */
- drvdata->cc_base = devm_ioremap_resource(dev, req_mem_cc_regs);
+ drvdata->cc_base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(drvdata->cc_base)) {
dev_err(dev, "Failed to ioremap registers");
return PTR_ERR(drvdata->cc_base);
}
- dev_dbg(dev, "Got MEM resource (%s): %pR\n", req_mem_cc_regs->name,
- req_mem_cc_regs);
- dev_dbg(dev, "CC registers mapped from %pa to 0x%p\n",
- &req_mem_cc_regs->start, drvdata->cc_base);
-
/* Then IRQ */
irq = platform_get_irq(pdev, 0);
if (irq < 0) {