[PATCH v6 3/9] rtc: at91sam9: replace devm_ioremap by devm_ioremap_resource
From: Boris BREZILLON <hidden>
Date: 2014-09-22 15:44:43
Also in:
linux-devicetree, linux-rtc, lkml
Subsystem:
real time clock (rtc) subsystem, the rest · Maintainers:
Alexandre Belloni, Linus Torvalds
Replace devm_ioremap calls by devm_ioremap_resource which already check resource consistency (resource != NULL) and print an error in case of failure. Signed-off-by: Boris BREZILLON <redacted> Acked-by: Alexandre Belloni <redacted> --- drivers/rtc/rtc-at91sam9.c | 29 ++++++++++------------------- 1 file changed, 10 insertions(+), 19 deletions(-)
diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c
index 74a9ca0..38a2693 100644
--- a/drivers/rtc/rtc-at91sam9.c
+++ b/drivers/rtc/rtc-at91sam9.c@@ -306,18 +306,11 @@ static const struct rtc_class_ops at91_rtc_ops = { */ static int at91_rtc_probe(struct platform_device *pdev) { - struct resource *r, *r_gpbr; + struct resource *r; struct sam9_rtc *rtc; int ret, irq; u32 mr; - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - r_gpbr = platform_get_resource(pdev, IORESOURCE_MEM, 1); - if (!r || !r_gpbr) { - dev_err(&pdev->dev, "need 2 ressources\n"); - return -ENODEV; - } - irq = platform_get_irq(pdev, 0); if (irq < 0) { dev_err(&pdev->dev, "failed to get interrupt resource\n");
@@ -335,18 +328,16 @@ static int at91_rtc_probe(struct platform_device *pdev) device_init_wakeup(&pdev->dev, 1); platform_set_drvdata(pdev, rtc); - rtc->rtt = devm_ioremap(&pdev->dev, r->start, resource_size(r)); - if (!rtc->rtt) { - dev_err(&pdev->dev, "failed to map registers, aborting.\n"); - return -ENOMEM; - } - rtc->gpbr = devm_ioremap(&pdev->dev, r_gpbr->start, - resource_size(r_gpbr)); - if (!rtc->gpbr) { - dev_err(&pdev->dev, "failed to map gpbr registers, aborting.\n"); - return -ENOMEM; - } + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); + rtc->rtt = devm_ioremap_resource(&pdev->dev, r); + if (IS_ERR(rtc->rtt)) + return PTR_ERR(rtc->rtt); + + r = platform_get_resource(pdev, IORESOURCE_MEM, 1); + rtc->gpbr = devm_ioremap_resource(&pdev->dev, r); + if (IS_ERR(rtc->gpbr)) + return PTR_ERR(rtc->rtt); mr = rtt_readl(rtc, MR);
--
1.9.1