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rtc: simplify devm_request_mem_region/devm_ioremap

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Convert the composition of devm_request_mem_region and devm_ioremap to a
single call to devm_ioremap_resource.  The associated call to
platform_get_resource is also simplified and moved next to the new call
to devm_ioremap_resource.

This was done using a combination of the semantic patches
devm_ioremap_resource.cocci and devm_request_and_ioremap.cocci, found in
the scripts/coccinelle/api directory.

In rtc-lpc32xx.c and rtc-mv.c, the local variable size is no longer needed.

In rtc-ds1511.c the size field of the local structure is not useful any
more, and is deleted.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Julia Lawall 2013-09-11 14:24:27 -07:00 committed by Linus Torvalds
parent 1735be4b82
commit 7c1d69ee11
9 changed files with 37 additions and 107 deletions
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17
drivers/rtc/rtc-ds1511.c
View file

@ -89,7 +89,6 @@ enum ds1511reg {
struct rtc_plat_data {
struct rtc_device *rtc;
void __iomem *ioaddr; /* virtual base address */
int size; /* amount of memory mapped */
int irq;
unsigned int irqen;
int alrm_sec;
@ -479,20 +478,14 @@ static int ds1511_rtc_probe(struct platform_device *pdev)
struct rtc_plat_data *pdata;
int ret = 0;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
pdata->size = resource_size(res);
if (!devm_request_mem_region(&pdev->dev, res->start, pdata->size,
pdev->name))
return -EBUSY;
ds1511_base = devm_ioremap(&pdev->dev, res->start, pdata->size);
if (!ds1511_base)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
ds1511_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(ds1511_base))
return PTR_ERR(ds1511_base);
pdata->ioaddr = ds1511_base;
pdata->irq = platform_get_irq(pdev, 0);

13
drivers/rtc/rtc-ds1553.c
View file

@ -285,19 +285,14 @@ static int ds1553_rtc_probe(struct platform_device *pdev)
void __iomem *ioaddr;
int ret = 0;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
if (!devm_request_mem_region(&pdev->dev, res->start, RTC_REG_SIZE,
pdev->name))
return -EBUSY;
ioaddr = devm_ioremap(&pdev->dev, res->start, RTC_REG_SIZE);
if (!ioaddr)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
ioaddr = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(ioaddr))
return PTR_ERR(ioaddr);
pdata->ioaddr = ioaddr;
pdata->irq = platform_get_irq(pdev, 0);

14
drivers/rtc/rtc-ep93xx.c
View file

@ -138,17 +138,9 @@ static int ep93xx_rtc_probe(struct platform_device *pdev)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENXIO;
if (!devm_request_mem_region(&pdev->dev, res->start,
resource_size(res), pdev->name))
return -EBUSY;
ep93xx_rtc->mmio_base = devm_ioremap(&pdev->dev, res->start,
resource_size(res));
if (!ep93xx_rtc->mmio_base)
return -ENXIO;
ep93xx_rtc->mmio_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(ep93xx_rtc->mmio_base))
return PTR_ERR(ep93xx_rtc->mmio_base);
pdev->dev.platform_data = ep93xx_rtc;
platform_set_drvdata(pdev, ep93xx_rtc);

16
drivers/rtc/rtc-imxdi.c
View file

@ -375,24 +375,16 @@ static int __init dryice_rtc_probe(struct platform_device *pdev)
struct imxdi_dev *imxdi;
int rc;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
imxdi = devm_kzalloc(&pdev->dev, sizeof(*imxdi), GFP_KERNEL);
if (!imxdi)
return -ENOMEM;
imxdi->pdev = pdev;
if (!devm_request_mem_region(&pdev->dev, res->start, resource_size(res),
pdev->name))
return -EBUSY;
imxdi->ioaddr = devm_ioremap(&pdev->dev, res->start,
resource_size(res));
if (imxdi->ioaddr == NULL)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
imxdi->ioaddr = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(imxdi->ioaddr))
return PTR_ERR(imxdi->ioaddr);
spin_lock_init(&imxdi->irq_lock);

24
drivers/rtc/rtc-lpc32xx.c
View file

@ -201,16 +201,9 @@ static int lpc32xx_rtc_probe(struct platform_device *pdev)
{
struct resource *res;
struct lpc32xx_rtc *rtc;
resource_size_t size;
int rtcirq;
u32 tmp;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "Can't get memory resource\n");
return -ENOENT;
}
rtcirq = platform_get_irq(pdev, 0);
if (rtcirq < 0 || rtcirq >= NR_IRQS) {
dev_warn(&pdev->dev, "Can't get interrupt resource\n");
@ -224,19 +217,10 @@ static int lpc32xx_rtc_probe(struct platform_device *pdev)
}
rtc->irq = rtcirq;
size = resource_size(res);
if (!devm_request_mem_region(&pdev->dev, res->start, size,
pdev->name)) {
dev_err(&pdev->dev, "RTC registers are not free\n");
return -EBUSY;
}
rtc->rtc_base = devm_ioremap(&pdev->dev, res->start, size);
if (!rtc->rtc_base) {
dev_err(&pdev->dev, "Can't map memory\n");
return -ENOMEM;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
rtc->rtc_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(rtc->rtc_base))
return PTR_ERR(rtc->rtc_base);
spin_lock_init(&rtc->lock);

17
drivers/rtc/rtc-mv.c
View file

@ -221,26 +221,17 @@ static int __init mv_rtc_probe(struct platform_device *pdev)
{
struct resource *res;
struct rtc_plat_data *pdata;
resource_size_t size;
u32 rtc_time;
int ret = 0;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
size = resource_size(res);
if (!devm_request_mem_region(&pdev->dev, res->start, size,
pdev->name))
return -EBUSY;
pdata->ioaddr = devm_ioremap(&pdev->dev, res->start, size);
if (!pdata->ioaddr)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
pdata->ioaddr = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(pdata->ioaddr))
return PTR_ERR(pdata->ioaddr);
pdata->clk = devm_clk_get(&pdev->dev, NULL);
/* Not all SoCs require a clock.*/

14
drivers/rtc/rtc-mxc.c
View file

@ -377,22 +377,16 @@ static int mxc_rtc_probe(struct platform_device *pdev)
unsigned long rate;
int ret;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
pdata->devtype = pdev->id_entry->driver_data;
if (!devm_request_mem_region(&pdev->dev, res->start,
resource_size(res), pdev->name))
return -EBUSY;
pdata->ioaddr = devm_ioremap(&pdev->dev, res->start,
resource_size(res));
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
pdata->ioaddr = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(pdata->ioaddr))
return PTR_ERR(pdata->ioaddr);
pdata->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(pdata->clk)) {

15
drivers/rtc/rtc-stk17ta8.c
View file

@ -294,19 +294,14 @@ static int stk17ta8_rtc_probe(struct platform_device *pdev)
void __iomem *ioaddr;
int ret = 0;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
if (!devm_request_mem_region(&pdev->dev, res->start, RTC_REG_SIZE,
pdev->name))
return -EBUSY;
ioaddr = devm_ioremap(&pdev->dev, res->start, RTC_REG_SIZE);
if (!ioaddr)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
ioaddr = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(ioaddr))
return PTR_ERR(ioaddr);
pdata->ioaddr = ioaddr;
pdata->irq = platform_get_irq(pdev, 0);

14
drivers/rtc/rtc-tx4939.c
View file

@ -244,9 +244,6 @@ static int __init tx4939_rtc_probe(struct platform_device *pdev)
struct resource *res;
int irq, ret;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return -ENODEV;
@ -255,13 +252,10 @@ static int __init tx4939_rtc_probe(struct platform_device *pdev)
return -ENOMEM;
platform_set_drvdata(pdev, pdata);
if (!devm_request_mem_region(&pdev->dev, res->start,
resource_size(res), pdev->name))
return -EBUSY;
pdata->rtcreg = devm_ioremap(&pdev->dev, res->start,
resource_size(res));
if (!pdata->rtcreg)
return -EBUSY;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
pdata->rtcreg = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(pdata->rtcreg))
return PTR_ERR(pdata->rtcreg);
spin_lock_init(&pdata->lock);
tx4939_rtc_cmd(pdata->rtcreg, TX4939_RTCCTL_COMMAND_NOP);