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rtc: Use devm_platform_ioremap_resource()

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Simplify probe by using a known wrapper function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Link: https://lore.kernel.org/r/4552ef52-f218-93b1-6dfa-668d137676f8@web.de
Link: https://lore.kernel.org/r/5ecfcf43-d6b2-1a38-dee8-b8806f30bc83@web.de
Link: https://lore.kernel.org/r/25448e11-c43f-9ae0-4c43-6f789accc026@web.de
Reviewed-by: Akinobu Mita <akinobu.mita@gmail.com>
Link: https://lore.kernel.org/r/8c17a59c-82ff-aa6b-5653-a38d786d3e83@web.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Markus Elfring 2019-09-21 11:49:01 +02:00 committed by Alexandre Belloni
parent eaa6ef563d
commit 89576bebbc
4 changed files with 5 additions and 30 deletions
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9
drivers/rtc/rtc-fsl-ftm-alarm.c
View File

@ -248,7 +248,6 @@ static const struct rtc_class_ops ftm_rtc_ops = {
static int ftm_rtc_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct resource *r;
int irq;
int ret;
struct ftm_rtc *rtc;
@ -265,13 +264,7 @@ static int ftm_rtc_probe(struct platform_device *pdev)
if (IS_ERR(rtc->rtc_dev))
return PTR_ERR(rtc->rtc_dev);
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!r) {
dev_err(&pdev->dev, "cannot get resource for rtc\n");
return -ENODEV;
}
rtc->base = devm_ioremap_resource(&pdev->dev, r);
rtc->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(rtc->base)) {
dev_err(&pdev->dev, "cannot ioremap resource for rtc\n");
return PTR_ERR(rtc->base);

8
drivers/rtc/rtc-goldfish.c
View File

@ -165,7 +165,6 @@ static const struct rtc_class_ops goldfish_rtc_ops = {
static int goldfish_rtc_probe(struct platform_device *pdev)
{
struct goldfish_rtc *rtcdrv;
struct resource *r;
int err;
rtcdrv = devm_kzalloc(&pdev->dev, sizeof(*rtcdrv), GFP_KERNEL);
@ -173,12 +172,7 @@ static int goldfish_rtc_probe(struct platform_device *pdev)
return -ENOMEM;
platform_set_drvdata(pdev, rtcdrv);
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!r)
return -ENODEV;
rtcdrv->base = devm_ioremap_resource(&pdev->dev, r);
rtcdrv->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(rtcdrv->base))
return -ENODEV;

11
drivers/rtc/rtc-m48t86.c
View File

@ -218,7 +218,6 @@ static bool m48t86_verify_chip(struct platform_device *pdev)
static int m48t86_rtc_probe(struct platform_device *pdev)
{
struct m48t86_rtc_info *info;
struct resource *res;
unsigned char reg;
int err;
struct nvmem_config m48t86_nvmem_cfg = {
@ -235,17 +234,11 @@ static int m48t86_rtc_probe(struct platform_device *pdev)
if (!info)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
info->index_reg = devm_ioremap_resource(&pdev->dev, res);
info->index_reg = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(info->index_reg))
return PTR_ERR(info->index_reg);
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (!res)
return -ENODEV;
info->data_reg = devm_ioremap_resource(&pdev->dev, res);
info->data_reg = devm_platform_ioremap_resource(pdev, 1);
if (IS_ERR(info->data_reg))
return PTR_ERR(info->data_reg);

7
drivers/rtc/rtc-r7301.c
View File

@ -354,21 +354,16 @@ static void rtc7301_init(struct rtc7301_priv *priv)
static int __init rtc7301_rtc_probe(struct platform_device *dev)
{
struct resource *res;
void __iomem *regs;
struct rtc7301_priv *priv;
struct rtc_device *rtc;
int ret;
res = platform_get_resource(dev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
priv = devm_kzalloc(&dev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
regs = devm_ioremap_resource(&dev->dev, res);
regs = devm_platform_ioremap_resource(dev, 0);
if (IS_ERR(regs))
return PTR_ERR(regs);