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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>
This commit is contained in:
Tian Tao 2021-03-13 09:42:35 +08:00 committed by Herbert Xu
parent e0ba808db7
commit f50281df94
1 changed files with 1 additions and 11 deletions
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12
drivers/char/hw_random/cctrng.c
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@ -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) {